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Annual Report of the Canadian Section of the International Society of

Soil Mechanics and Foundation Engineering for year ending December

1970 including Membership List of the Canadian Section.

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in its work. Formed in 1945 to deal with an urgent wartime problem involving soil and snow, the Conunittee is now performing its intended task of co -ordinating Canadian research studies concerned with the physical and mechanical properties of the terrain of the Dominion. It does this through subcommi ttees on Snow and Ice, Soil Mechanics, Muskeg, Permafrost, and Pipeline and Land Use Technology in Northern Terrain. The Committee consists of about twenty-five Canadians

appointed as individuals and not as representatives, each for a three -year term. Enquiries will be welcomed and should be addressed to: The Secretary, Associate Committee on Geotechnical Research, c/o Division of Building Research, National Research Council, Ottawa, Ontario.

This publication is one of a series being produced by the Associate Committee on Geotechnical Research of the National Research Council. It may the refore be reproduced, without amendment, provided that the Division is told in advance and that full and due acknowledgment of this publication is always made. No abridgment of this report may be published without the written authority of

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ASSOCIATE COMMITTEE ON GEOTECHNICAL RESEARCH

ANNU AL REPO R T

OF THE

CANADIAN SECTION

OF THE ANALYZED

INTERNATIONAL SOCIETY FOR SOIL MECHANICS

AND FOUNDATION ENGINEERING

FOR YEAR ENDING DECEMBER 1970

INCLUDING MEMBERSHIP LIST OF THE CANADIAN SECTION

PREPARED BY

W.J. EDEN AND MISS J. BUTLER

TECHNICAL MEMORANDUM NO.1 00

OTTAWA MARCH 1971

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An Annual Report of the Canadian Section is issued each year and this Report is, therefore, a summary of the activities of Canadian members of the International Society for Soil Mechanics and

Foundation Engineering for the period December 1969 to December 197O.

It is published for the purpose of keeping Canadians informed

of those soil mechanics investigations which are being conducted in their

own country. In this way, it will assist in overcoming the natural handicap

offered by the widespread geographical distribution of soil mechanics work in Canada.

The Report includes a list of publications by members of the

Canadian Section. In addition, it includes a list of known thesis topics

presently under study and a list of suggested research projects. It is

hoped that these lists will develop into useful sources of information.

A special effort has been made to reduce reports on routine work. It

is probable, however, that some of the 'WOrk noted was of a routine nature

but was considered worth including becaus e of possible general interest. Brevity in reporting the work has been attempted.

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-TABLE OF CONTENTS

1- General Soil Properties 1

2. Mechanical Properties Including Permeability 8 3. Shallow Foundations Including Pavements 17

4. Deep Foundations 24

5. Earth and Rock Pres sures 27

6.

Earth and Rock Darns. Slopes and Open Excavations 29

APPENDIX "A"

APPENDIX "B"

APPENDIX "G"

APPENDIX "D"

APPENDIX "E"

- Alphabetical List of Members of the Canadian Section of the International Society for Soil Mechanics and

Foundation Engineering.

- List of Members Associated with Or gam za tio ns ,

- Members' Publications Since December 1969.

- Active Graduate Thesis Work Known to

Members.

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P. C. Aitcin

Nous avons complete une etude sur la relation entre les propriete physico chimique et rne cani que s de 4 argiles du Quebec. Bien que de composition chimique et de nature mineralogique proche ces argiles ont des p ro p r ie te s rne cani que s tr e s varie e s dues

a.

leur sedimentation en milieu t re s different.

Nous avons complete la partie theorique d 'un e etude sur les mesures de po r o site , Nous avons propose de nouvelles definitions et une nouvelle terminologie qui paraitront t r e s prochainement dans Le

"Journal of Materials".

Canadian National Railways

Continuing measurements of effectiveness of granular salt in reducing differential heaving of roadbed soils with pa rticular application to railway track.

Carleton University - Department of Geography

(a) Influence of chemical and mineralogical factors on geotechnical properties of Leda clays.

(b) Experimental and theoretical studies of isothermal volume change of frozen soils.

(c) Instrumentation and field studies of pore water

pressures in soils containing gas, especially below frozen layer in winter. C. B. A. Engineering

Continuing field and laboratory studies to ass e s s possible earthquake effects on deltaic sands. Work includes undistrubed sand

sampling, laboratory liquefaction tests and comparisons with standard penetration and dynamic cone test results.

Urban Geology of Vancouver: studies of the geology of the surficial deposits encountered at several specific sites. This work is part of a larger study being undertaken by U. B. C.

J. DeJong

The work presently being undertaken involves sampling of marine sediments and methods of founding "installations" on the sea floor providing adequate capacity against bearing failure, tilt and lateral movement. The soils of interest are those on continental shelves in up to 1200 foot depths of water.

Division of Building Research, National Research Council

Permafrost Distribution

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was continued. Particular emphasis is now being placed on the discontinuous zone. Ground temperatures are measured at a number of sites representing widely different terrain conditions in the permafrost zone.

L. Domaschuk

Pore Pressure Induced in Lake Agassiz Clays by Boundary Loads

The problem of predicting the pore pressure induced in the Lake Agassiz clays by different forms of boundary load is being approached by separating the induced pore pressure into a component associated with changes in the mean normal stress and a component

associated with a change in the resultant deviator stress. Pore pressure parameters relating the changes in the respective components of pore pressure and stress are being established by laboratory tests and are being verified by field measurements.

Ecole Polytechnique - Soil Mechanics Division

(a) Study of the properties related to the behaviour of normally consolidated, sensitive and cemented clays.

(b) Study of the characteristics of cohesionless soils related to their ge ain size distribution, structure and texture.

P. N. Gaskin

The maximum drop in pore water pressure, the maximum heaving pressure and the minimum radius of the ice -water interface were measured in four partially frozen soils in laboratory tests.

It was found that theo retical equations would predict thes e pres sures only for arrangements of uniform spherical particles but not for non-uniform soils.

Geocon Ltd.

(a) Detailed laboratory strength and compressibility testing on undisturbed large diameter tube samples of essentially normally consolidated sensitive silty clay recovered from depths of 150 to 300 ft.

(8)

(b) Offshore sampling to 200 feet below sea level and laboratory testing of a sensitive normally consolidated clay deposit, including observations of variations in properties at the

shoreline transition to permafrost, at latitude 630 in northern Quebec.

(c) Continuing studies of the geotechnical properties of soft to firm lateritic clay soils from New Caledonia off the coast of Australia.

A. B. Hamil ton

Investigation of behaviour of partly saturated clay soils in a semi -arid climatic environment. Seasonal and long-term moisture changes are being monitored and volume changes resulting from freezing and moisture content fluctuations are being 0 bserved. In addition, river bank slopes ar e being observed and landslide areas within a limited study area will be instrumented.

Laboratory studies to measure swelling potential and shear strength of disturbed and undisturbed partly saturated clay tills are also being conducted.

R. M. Hardy & Associates Ltd.

(a) Thawing and degradation in permafrost terrain.

(b) Prediction of freezing and thawing depths.

J. R. Hosang

Classification of three Kingston area peat types, with respect to grain size analysis, as h content, and plasticity.

C. T. Hwang

Finite element method for geotechnical applications:

(a) Finite element method for plane strain consolidation.

(9)

Hydro -Quebec

Continuation de l'etude des ca r a cter-is ti que s geo tec hni que s des argiles pro -glaciares de la region de la Baie James (Bassins de la Nottaway; Broadback et Ruppert).

E. Z. Lajtai

Bri ttle fracture initiation and propagation from flaws in rocks, with special emphasis on the evolution of shear fracture in brittle dis continuous ro cks ,

McGill University - Dept. of Civil Engineering &

Applied Mechanics

Basic studies of clay-water systems; physics of soil water movement, water retention, separation of capillary and osmotic forces on water. Fundamental investigations of the complex interaction of unsaturated water flow, salt retention and migration, and fabric alterations in soils. Studies of relations among soil suction, clay fabric and shear strength. Infrared studies of clay particle forces. Optical microscopy, electron microscopy and X-ray diffraction studies of the fabric of clay-water systems, changes occurring during shearing, interparticle relationships, mineralogy; natural and remoulded clays.

Soil freezing, frost heaving pressures, ice-water interfacial relationships, modification of frost heaving effects using additives, labo ratory experiments and field frost heave tests, study of a line heat source acting on permafrost.

McGill University - Department of Geological Sciences

Evolution of formats and retrieval for computer-based storage of soil and other foundation properties.

R. J. Mitchell

Experimental study of the stress -strain behaviour of Champlain Sea clay deposits have been underway for several years. Current research is being directed towards developing stress -strain relations for this material.

(10)

M. Novak

Vibrations of mas sive foundations on soil

were experimentally investigated on various sites in Ontario. On one site, the effect of embedment was also studied.

Ontario Hydro

Field measurements of adfreeze forces for small footings were continued. Typical frost grip forces during maximum heaving consisted of about 10 psi for steel, 25 psi for concrete and

30 psi for wood footings. These adfreeze forces were subjected to

marked peaking and drop-off effects corresponding to cooling and warming wea ther trends.

A variety of techniques to combat frost heave of small footings were investigated.

P. F. R. A.

(a) A research programme on geophysical logging was continued. Electro-10 gging and radiation 10 gging were car ried out in four holes during a damsite investigation. Comparisons were made with actual field logs and laboratory test results.

(b) A programme of cataloguing clay shales in the Prairie Region was continued. Slaking tests are being used to evaluate the probable insitu behaviour of clay shales.

(c) An investigation was undertaken to find better material for wrapping chunk soil samples before moisture proofing for humid room storage.

(d) An investigation was undertaken to determine

the oven temperature required for drying organic and non-organic soils.

R. M. Quigley

(a) Mineralogy and engineering classification of swelling clays from Western Canada withJ.J. Hamilton and Y. Kubo ,

(b) Physico -chemistry and engineering prope rties of clay crust in S. W. Ontario.

(11)

M. Roy

Study of the characteristics of cohesionless soils related to their grain breakage at high pressure.

N. W. Radforth

Drainage as associated with defined categories of peat structure was characterized. Peat structure in the

distributional sense can now be associated with drainage behaviour in the same sense.

Methodology was developed for mapping peat properties for the Province of New Brunswick through reference to surface vegetation.

A "key" accounting for total land area was devised to give location and distribution of structural properties of peat for the low arctic and high sub-arctic. The key was adapted to

use for reference to mineral soil types and range of moisture content and ice properties in associated mineral terrain.

A programme was instituted in which soil conditions in permafrost country were correlated with effect of off-road vehicles:

G. P. Raymond

Previous detailed field and laboratory studies

have indicated that there is not always a consistent agreement between field behaviour of loaded soil and the behaviour that might be predicted from laboratory tests. This investigation is being continued with detailed study into such factors as the elastic modulus and lateral permeability, and into the development of more rigorous theoretical formulations that can more accurately reflect the actual field behaviour during consolidation.

E. W. Speer

Activities over the past year have involved a terrain evaluation in the Arctic relative to an oil pipeline from Prudhoe Bay, Alaska, to Edmonton, Alberta. This study entailed drilling test holes and reconnaissance 0bservations at selected points as determined from air photographs.

(12)

F. Tavenas

Investigation on the validity of the relative density concept with particular reference to the accuracy of its measurement in the laboratory and ttinsitull

J. Terasmae

Stratigraphic drilling project in the Point Pelee National Park was completed in 1970. It involved the study of Pleistocene deposits overlying bedrock, and the postglacial history of Point Pelee.

Thurber Consultants Ltd.

Laboratory tests were undertaken to assess the

usefulness of revert mud to be used in drilling for piezometer installation.

William Trow Associates (Hamilton) Ltd.

Laboratory work into the swelling properties of commercially processed slag for use as structural fill.

University of Alberta - Alberta Research Council

(a) Shear strength of overconsolidated clay s hale soils.

(b) Ion exchange phenomena as affecting strength, consolidation and physical limit characteristics.

(c) Influence of geology on geotechnical properties of Upper Cretaceous clay shales.

(d) Field and laboratory measurements of volume changes in compacted soils.

(e) Soil structure studies.

O. W. White

(a) Map and report on the Pleistocene geology of Caledon Township was prepared for the Ontario Department of Mines.

(13)

(b) Work continued on the lithology - size relationships in gravel deposits.

(c) Collection of subsurface information in the

Kitchener -Waterloo area recommenced in -preparation for an engineering geology map and report of the Kitchener-Waterloo area (in conjunction with P. F. Karrow).

(d) In conjunction with the Ontario Soil Survey and the Department of Soil Science, University of Guelph, a chapter on engineering properties was prepared fo r the report on the Soils of Waterloo Country. In association with the Soil Survey, sampling was largely completed in Brant County in a continuation of the co-operative activity of the Universities of Guelph and Waterloo and the Ontario Department of Highways.

E. Yatsu

(a) Clay minerals in Wentworth till.

(b) Electrophoretic mobility of clay rnine r al s ,

2. MECHANICAL PROPER TIES INCLUDING PERMEABILITY H. G. Acres Lim.ited

(a) Continued study of borehole water pressure testing to determ.ine the permeability characteristics of gneissic bedrock. The rock will be subjected to water under high pressures from penstock tunnels.

(b) Study of the slaking and swelling properties of a weak clay-shale rock, and correlation with standard index properties, as a basis for predicting the swelling and heave of deep and extensive excavations required for the structures associated with a large

hydroelectric development.

(c) Continued study of the shear strength properties of two clay shales with sliding failure occurring along the bedding.

(14)

(d) Study of the load -carrying capability of a formation containing gypsum and gypsiferous dolomite, including field exploration by means of 36-inch diameter percussion drill holes for direct inspe ctio n,

(e) Continuing investigation of the shear strength and stres s -strain properties of lacustrine clays, with particular

reference to the anisotropi c behaviour of stratified clays. Laborato ry tests utilized large block samples obtained from a deep test shaft and 5 -inch diameter tube samples.

(f) Large -scale laboratory tests to determine the permeability of a non -plastic glacial till parallel and normal to compacted lifts.

(g) Investigation of modelling of rockfill with conventional soil mechanics apparatus to determine the

stress-deformation properties of the rockfill. The stress -deformation relation-ships obtained will be used in co njun c tion with the finite element method of analysis for predicting surface deformations of a concrete -faced

rockfill dam.

Canadian National Railways

Rail-mounted apparatus to do plate bearing tests

on ballast between and below ties in railway track was developed, tested and used. Values of ballast bearing index so obtained were used to

evaluate effect of various track maintenance operations on ballast competence. Further development of the apparatus seems warranted.

R. W. Culley

Effect of organic soil content on resilient characte ris tics of till soil.

Division of Building Res earch, National Research Council

Compressibility of Clay Tills (J. J. Hamilton)

Settlements and pore pressures developed in a clay till foundation of a 150ft. high fill were measured during and following construction.

Consolidation of Sensitive Clays

(15)

of sensitive clays were continued in support of instr urn en ted test fills at two sites near Ottawa. Observations of the Iongvter m s et tl erne nt of several other structures were continued.

L. DOITlaschuk

Three -diITlensional COITlpression of Lake Agassiz Clay A rn et.ho d of predicting the s e ttl ernent of a

structure placed directly on the deep deposit of Lake Agassiz clay is being for rnul a ted , The approach consists of using stress dependent

bulk and shear rnoduli for relating stress and strain in three-dimensional

space. The relations hip between the rnoduli and the stres s is being established by laboratory tests.

Ecole Polytechnique_

(a) Compr es s ibll ity and resistance of cernerited sensitive clays fr o m Riviere aux Outa r d es ,

(b) Geological and geotechnical characteristics of varved clays from J'arne s Bay.

(c) Properties of compacted till: permeability, stress -strain behaviour under compression and tension, internal friction angle, dilatation, brittleness.

(d) Three -dimensional deformation of cohesionless materials beneath moving wheels.

(e) Effect of overlapping influence zones of footings on the bearing capacity of cohesionless materials.

(f) Soil behaviour under seismic loading: study of the parameters controlling the behaviour of sand specimens under triaxial cyclic loading.

(g) Mechanical properties of natural and reinforced peat.

D. E. Gill

Shape and scale effects of rocks at various confining pressures.

(16)

Geocon Ltd.

Permeability and model tests to determine the characteristics of a percolation sand with determination of the effective porosity for drainage where time was a factor. G. W. Hollingshead

Shear strength and tensile strength tests of undisturbed peat.

J. R. Hosang

Consolidated undrained triaxial testing of remoulded samples of the three peat types at confining pres which would exist in the field.

Hydro-Quebec

Essais d'arrachement avec mesure des contraintes et deformations de pieux moul e s en beton i ns talle s dans des m ate r iaux alluvionaires du site du barrage Manic 3, en vue de determiner l e

frottement sol-pieux, et ainsi la transmission des charge due

a

l'aHaissement du sol de fondation autour des pieux de la coupure

e ta.nche sous Ie noyau du barrage. Un rapport sur ces essais a

ete pr e s e nte au 10 Co ng r'e s International des grands Barrages, Montreal, 1970 (Question 37, Rapport 34).

Essais de char gement de pieux tubulaires battus dans une formation alluvionaire (fondation pour la culee gauche du pont sur

la rive Manicouagan

a

11emplacement de Manic 3) en vue, entre autres,

de verifier ltappl.i.cabflite de la formule Hiley dans les conditions dtun

sable fin s atu r e ,

Un rapport communication sur ce sujet sera publ.ie en 1971.

T. C. Kenney

Compres sibility of clay soils is being investigated to determine the mechanisms that result in clay soils compressing

and expanding. It has been found that two major mechanisms are involved

(17)

(b) Compressibility of rock fill is being investigated by studying the factors that control the compressive strength of

rock particles and the s hear resistance that can be developed between rock particles. It is concluded that compressibility of rock £ill is dependent on the tensile strength of the rock and its variation with changes of environmental conditions and on the rnagni tud es of force transmitted at the zones of interparticle contact.

(c) Permeability of layered soils. A natural slope

m varved clay has been thoroughly instrumented with piezometers and the measured water pressures will be used for the purpose of back-calculating to determine the permeability characteristics of

varved clays in large scale. Associated laboratory experimentation is being performed.

M. S. King

(a) Influence of saturation and confining pressure on the static and dynamic elastic properties of rocks held in a controlled environment at temperatures in the range _60 to 700F.

(b) Determination of the compres sional and shear wave velocities in rocks approaching failure under triaxial loading conditions.

(c) The prediction of rock failure by a study of the emission of rni c ro s eis mic energy as the rock is loaded to failure under triaxial loading conditions.

(d) Determination of the rheological equation of state of evaporites at elevated temperatures and stresses.

B. Ladanyi

(a) Effect of porosity of rock substance on strains associated with failure under triaxial test conditions.

(b) Deformation and strength behaviour of jointed rock mass under biaxial stress conditions.

E. Z. Lajtai

Model experiments examining the fracture mechanism of collapse of underground openings.

(18)

P. LaRochelle

Measurement in the laboratory and on the field of the mechanical properties of sensitive cemented clays. The measurements obtained on block and tube samples were compared together with the field measurements.

B. LeLievre

(a) Stress -strain relationships for clays subjected to stress -reversal.

(b) Consolidation of clays exhibiting marked structural breakdown.

(c) The application of finite -element methods of stress analysis to problems of soil-structure interaction.

(d) The prediction of settlement of footings on sand.

(e) Model anchor studies.

K. Y. Lo

(a) Progressive failure in clays and rocks.

(b) Effect of sample size on drained and undrained shear behaviour of fissured materials.

(c) Strength anisotropy of clays.

McGill University - Department of Civil Engineering

& Applied Mechanics

Constitutive relationships for clay and sand soils; continuation of studies of yielding and failure in soils, both remoulded and local undisturbed, using plane strain and complex stress states,

three-dimensional stress-strain relationships; creep and relaxation; examination of the applicability of plasticity concepts to soils; study of the use of statistical distribution fields for particulate mechanics.

Compressibility and consolidation; optical and electron microscopic and X -ray diffraction studies of fabric changes

(19)

occurring during consolidation; continuation of study of influence of temperature effects on consolidation; examination of basic physical and analytical aspects of secondary consolidation.

Hyd raulic conductivity of partially saturated soils; infiltration studies of swelling and non-swelling soils; relationships between infiltration of water and salt leaching.

Effect on shear strength of clay/sand proportion of a soil and degree of saturation.

Soil dynamics; constitutive relations hips for soil in a dynamic regime; an examination of the concept of critical loading velocities for soils; stress wave propagation in soils; soil-structure interaction; bulk flow of granular materials; the use of forced vibrations as an aid to soil cutting and moving.

Microscopic stres ses and strains in sands; development of constituti ve relations.

Trafficabilityand mobility; studies of soil deformation, contact stresses and energy dissipation under moving rigid and pneumatic wheels; velocity and strain rate field under grousers and cutting blades; study of design aspects of blades and earth moving equipment.

Basic study of cone penetration in soils; stress and strain fields, dynamic effects; correlation of penetration resistance to soil properties; relation to ve hide mobility of soil properties derived from index tests.

R.J. Mitchell

An experimental investigation into the vo lurn e change (compaction and/or dilation) of dense granular materials under a variety of dynamic loadings is being initiated.

A study of the failure mechanism in frozen soils under confining pressures is also being initiated.

J . D. Mollard

(20)

on a variety of engineering projects including

(a) groundwater investigations;

(b) pipeline investigations in permafrost areas; (c) highway and railway location;

(d) construction materials searches.

Ontario Department of Highways

Investigation of physical characteristics of Bentonite -Granular 'A' mixtures as related to underwate r tunnel linings.

p. F. R. A.

(a) An automated data acquisition system was

added to three Clockhouse direct shear reversal machines. Research on the residual shear strength of clay shales and overconsolidated clays is continuing. Tests are being carried out on intact, remoulded and pre -cut samples as well as samples with pre -existing highly slickensided shear planes. Data is being obtained on the effects of varying the rate of shear and the amount of shear displacement for each reversal. Shale samples have been sent to other laboratories where residual shear strength is being obtained with the torsional shear apparatus.

(b) Studies are continuing on the correlation of optimum moisture content of a soil with its plastic limit.

(c) Studies are continuing on the relations hip between the Activity Ratio of shale samples and their potential swell.

M. Roy

(a) Compres sibility of cohesionless soils at very high pressures.

(b) Measurement of shear strength of sensitive clay by different methods on the field.

N. W. Radforth

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in terrns of permeability showed quantitative relationship between peat category (structure), depth of deposit and degree of humification oft he cate go ry .

G. P. Raymond

Sampling Disturbance of Sensitive Cemented Clay

The unconsolidated undrained, consolidated und rained and consolidated drained behaviour of a sensitive cemented clay sampled by four different sampling methods and by means of block samples cut within an excavation are being compared. Attention is being directed at both the total and effective stress -strain and strength soil parameters. Initially all samplers and 1abo ratory samples are 2" in diameter. Sample r and sample size will hopefully be varied in later investigations.

Primary Consolidation of Clays

Theories taking into account the variation of

compressibility and permeability during consolidation as well as with the thickness of the deposit have been developed and solutions obtained. The theory along with experimental results are being applied to the constant rate of strain consolidation test in the hope of reducing the time required to obtain the soils consolidation parameters to about one-tenth the presently required time.

Secondary Consolidation of Clay

A laboratory investigation in the rate of settlement and dissipation of residual pore ーイ・ウウオセ・ウ during secondary compression is being undertaken. Effect of increment ratio, sample thickness and time of consolidation under previous load are the primary variables.

University of Alberta - Alberta Research Council

(a) Field sampling and laboratory investigations into the prope rties of tiIl ,

(b) Field and laboratory measurements on swelling soils; theory of swelling.

(22)

University of British Columbia -Soil Mechanics Group

(a) Testing of sands and clays under simulated earthquake loading for both dynamic simple shear and triaxial conditions.

(b) Measurement and analyses of response of clay and sand models using programmable vibration table.

(c) Liquefaction of sands.

(d) Creep rupture studies on sensitive clays (plane strain and triaxial).

(e) Strength and deformation characteristics of soils in specially designed plane strain device.

(f) Failure criterion for soils.

(g) Strain controlled consolidation studies on peat for settlement predictions.

N. E. Wilson

(a) Behaviour of soils under cyclic loading.

(b) Consolidation of organic soils.

E. Yatsu

Shear strength of Wentworth till.

3. SHALLOW FOUNDATIONS INCLUDING PAVEMENTS

G. E. Bauer

Full-scale investigation of shallow footings on

the dessicated crust of the Leda clay. Model tests of deep and shallow foundations on an undisturbed over consolidated clay.

Canadian National Railways

Test installation of styrofoam insulat on under shallow foundations supporting outdoor machinery as alternative to standard footings below frost depth.

(23)

Canadian National Railways (Cont'd)

Att ernpt to evaluate elastic support characteristics of ballast and subgrade under railway track by discrim.ination of rates of vertical acceleration of a loaded railway wheel on rail.

Effecti venes s of thre e diffe rent rria c hines in cornpa c ti ng ballast in existing railway track was studied, alone and along with

alignm.ent, levelling and undercutting operations. Results were

appraised by m.easurem.ents of track level with an electronic recorder car, track alignm.ent, and ballast bearing index.

R. W. Culley

Effect of organic soil content on resilient characteristics of till soil.

J.V. Danys

Observations of the settlem.ent of an "artificial island" (250 x 250 it) built on 250 ft. thick soft ma r in e clay for a lighpier in Lake St. Peter, Quebec.

M. M. Davis

Continuing work on stress distribution and fatigue behaviour of layered pavem.ent sy s te ms ,

Departm.ent of Public Works - Testing Laboratories

Investigations continuing on the ground tem.perature regim.e at one building and seasonal vertical rno v erne nt s of another building.

Division of Building Research, National Research Council Swelling and Shrinking, Soils (J. J. Ham.ilton)

Long-term. observations of ground mov ernent were continued in heavy clay soil profiles. These rno ve rne rrts are co mpa r ed with the perform.ance of shallow building foundations, rnu ni cipal service lines and pavernerrts ,

(24)

Frost Action on Small Footings

A field programme to measure the frost

adhesion forces against small footings were continued. Footings included are sections of concrete wall and columns of wood

and concrete of various diameters. The pattern of frost heave and temperature is observed in the vicinity of the footings.

Anchorage in Permafrost

Full-s cale tests on anchors installed in frozen clay were completed at two sites in northern Manitoba. Some of the anchors were subjected to long -term load s ,

Swelling Shale

Attempts were made to control heave of a building founded on s hale by flooding the s hale with a basic

solution. The heave was found to be due to a complex biochemical process.

Contact Pressures

Earth pressure cells were installed at the bottom of a stiff raft foundation on clay. Pressures were measured from the start of foundation work to the completion of the 15 -storey structure and will be continued.

Empress Hotel

The settlement have been collected and studied. a period of 65 years.

records of the Empress Hotel This example gave records for

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Ge ocon Ltd.

(a) Detailed settlement obs ervations during construction and water test loading of very large diameter floating roof steel storage tanks founded on granular fill over hard clay till and soft sedimentary bedrock.

(b) Design of a rigid pavement for large aircraft loads over a natural till subg r ade ,

(c) Settlement records of a large raft foundation on 100 ft. of lightly overconsolidated clay during hydrostatic test of the structure.

(d) Insitu large size density measurements, dynamic cone penetration tests and plate load tests of an extensive sand stratum before and after heavy vibratory compaction as part of preparation of the bearing level for settlement s en sitive construction.

(e) Design of embankment fill sections to be located over an area underlain by soft organic silts and soft marine clays for a major Throughway extension.

(f) Continuing thermocouple and settlement observations of a furnace structure founded on marine clay.

R.C.G. Haas

(a) Developing a comprehensive pavement management system.

(b) Low-temperature behaviour of pavement components.

(c) Cumulative permanent deformation of flexible pavements.

(d) Information systems for pavements.

(e) Pavement output measurements (serviceability, safety, cost, etc.)

R. M. Hardy & As soc s. Ltd.

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G. W. Hollingshead

Field load tests on a local m.arsh deposit using a 6 ft. diam.eter flexible load. Horizontal and vertical ground m.o vem.ents are m.easured.

J. R. Hosang

Consolidated undrained triaxial testing of rem.oulded sam.ples of the three peat types at confining pressures which would exist in the field.

B. Ladanyi

Bearing capacity of a jointed rock m.ass under shallow foundations.

P. LaRochelle

(a) Field tests on pavem.ents insulated with plastic foam.. Observations of depth of frost below these pavem.ents have been m.ade for five years in order to evaluate the perform.ance of the insulating m.aterial on a long-term. basis.

(b) The influence of anti -oxydants in the bitum.inous m.aterials. The purpose of the study was to determ.ine whether the anti-oxydants would im.prove the durability of pavem.ents.

McGill University - Departm.ent of Civil Engineering &

Applied Mechanics

Developm.ent of plasticity techniques, com.patible with the physical characteristics of soil, for use in predicting shear deform.ations and subsidence under shallow footings. The causes and

remedies of winter soil expansion under railway roadbeds.

G. C. McRostie

(a) A sim.ple one -rnan penetrom.eter was used at

each lOft. wide footing in m.edium. dense sands to estim.ate settlements by correlation with standard penetration test. Settlem.ent observation on com.pleted structure is used fo r final correlation.

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(b) Involved in a project where DBR/NRC have instrumented a raft on deep clay to measure the actual distribution

of contact pressures. The building is IS-storey shear wall construction and its stiffness will likely alter the usual distributions observed in the past for column and flat slab buildings.

Ontario Department of Highways

In 1965 the Department of Highways, Ontario, constructed a full-scale experiment on Highway No. 10 north of Brampton. Thirty -fou r test sections are includ ed and the main objective is to determine the load bearing equivalencies of five

different types of road bases when laid in combination wi th asphaltic concrete surfacings and a sandy sub-base material on a light clay soil.

Ontario Hyd ro

In connection with transmis sion tower foundation

studies the long-term uplift capacity of straight-sided and belled-augered footings was investigated in a stiff clay.

p. F. R. A.

A field research programme on frost action In soils beneath spillways was continued.

G. P. Raymond

Stress Distribution and Deformation Below Rail Tracks

About one hund red million dollars a re spent annually in Canada on the maintenance of existing railroad tracks and underlying fill, forty per cent of which is attributable to the maintenace of the

ballast. Laboratory tests are being conducted to investigate the behaviour of the ballast alone and the ballast, sub-ballast and subgrade together under vibration and cyclic loading. Field measurements of the forces transmitted from the rails to the ties are planned so that full-scale laboratory model investigations can be conducted in the future.

Bearing Capacity of Muskegs

Fully ins trumented field tests are being employed to study the failure mechanism of very soft organic deposits loaded on a circular area at the surface. Flexible instrumentation to record lateral

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movements at depth is being designed and tested. The following factors, among others, are being studied to determine what effect they have on the safe bearing pressure of peat: texture, shear strength, rigidity of sub -strata, surface mat, rate of loading, and berms.

B. P. Shield s

Application of surface wave method to

(a) determine elastic constants of pavement layers and subsoils;

(b) develop methods to determine continuity of cement stabilized base layers;

(c) relate insitu dynamic moduli to sonic moduli and resilient moduli from laboratory tests.

F. Tavenas

Preparatory phase of an in vestigation on the

behaviour of shallow foundations on sensitive clay; ins trumentation of the footing and of the soil.

University of Alberta - Alberta Research Council

(a) Continuing studies on frost action phenomena in both open and closed systems.

(b) Evaluation of load -deflection phenomena in layered pavement systems.

(c) Stabilization of various types of soil with Portland cement, asphalt or lime.

(d) Cyclic loading of stabilized soil mixtures.

(e) Cracking of asphalt pavements.

P. Yurkiw

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4. DEEP FOUNDATIONS

H. G. Acres Limited

(a) Development of a method of analysis and the corresponding computer solution to the complex stability problem of large diameter deeply embedded caissons.

(b) Development of a step-tapered rock socket

as the solution to the special pro blem of utilizing an interbedded gypsum and dolomite rock as the foundation for high-capacity caisson piles.

Department of Public Works - Testing Laboratories

Monitoring instrumented drilled -in caisson

foundation under a high-rise building in downtown Ottawa to determine long-term distribution of load from the concrete to the bedrock.

Division of Building Research, National Research Council

Negative Skin Friction Measurements

The long-term loading of piles due to negative skin friction is being measured on piles at two locations.

Geocon Ltd.

(a) Inspection, including insitu base hand sampling of large diameter caissons with bells up to 11. 5 ft. diameter in hard overconsolidated sensitive clayey silt adjacent to a river.

(b) Detailed heave measurements during installation of large groups of cast-in-place expanded base piles penetrating through stiff clay into glacial till.

(c) Observations of driving and load testing of long 30" diameter open end steel tube piles terminated in glacial till in an offs hore area, including the effects of time on gain in capacity.

(d) Load testing to failure of long H-section piles acting in friction within a firm to stiff clay of marine origin.

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(e) End-bearing and skin friction tests of caissons in glacial till.

(f) Measurements of the drift of steel tube piles dri ven in a deep clay deposit.

(g) Load test to failure on a long 30" diameter

steel tube pile terminated in a marine clay to check on gain in capacity over a 6-month period.

R. M. Hardy & Assocs. Ltd.

(a) Measuring settlement of three large buildings in Edmonton.

(b) Pull out tests on rock anchors.

T. C. Kenney

Strutted Excavations

A parametric study of strutted excavations in clay is being made through the use of a finite -element programme. Also, the results of this study will be compared with field measurements to 0btain values of insitu behavioural parameters of natural soil.

Performance of Large Piles on Soft Rock

A parametric study is being made (finite -element

programme) to determine the factors that most influence the performance of a large pile on soft rock for the purpose of focusing on those factors that should be further investigated in the field and also for the purpose of indicating approaches to rational design that should be pursued.

B. Ladanyi

Time and temperature dependent behaviour of deep footings and anchors in frozen soil.

G. C. McRostie

A fairly large pile group (7 rows x 8 rows) has been

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settlements and load distribution observations are being made to get behaviour of the group. Pre -construction estimates of behaviour will be correlated based on two load tests and Geoprobe tests.

A rock anchor grouted 30 ft. into limestone was tested for both short-term and long-term resistance to tension. Instrumentation was also added by University of Ottawa to study stress distribution in the rock so cket.

Ontario Department of Highways

Bead ng capacity of different types and length of piles In

(a) sands; (b) stiff clays; (c) organic silts.

Comparison of field test results with theoretical predictions. Investigation of causes for possible discrepancies.

p. F. R. A.

(a) The investigation on the performance of granular slope protection and rip rap on earth dams was continued.

(b) Observations were continued on the heave and movement of spillways and open cuts in clay shales.

F. Tavenas

(a) Final development of an investigation on the bearing capacity of friction piles in sand.

(b) Validity of pile driving formulas; driving stresses in concrete piles; time effect on the bearing capacity.

(c) Use of the pressure meter in soft rocks for the determination of the bearing capacity of socketed piles.

Thurber Consultants Ltd.

(a) Design of a full compensated raft foundation for a twenty-seven storey structure founded on normally consolidated post-glacial marine clay.

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(b) Instrumentation to measure heave in a deep excavation.

William Trow Associates (Hamilton) Ltd.

Evaluation of the bearing capacity of closed end pipe piles founded in the very dense tills of southern Ontario.

University of Alberta - Alberta Research Council

(a) Pile load distribution in multi -layered soil systems.

(b) Pile load te sts of full-s ize fie ld pile s ,

(c) Studies of rebound and settlement of foundations for multi -storey buiId in gs ,

University of British Columbia - Soil Mechanics Group

(a) Finite element programme for determining stresses and deflections in sheet pile walls, foundations and piles.

(b) One-dimensional consolidation programme using eigenvalue technique.

(c) Plane strain finite element programme for stresses and deformati.ons with generalized soil properties.

S. EARTH AND ROCK PRESSURES H. G. Acres Limited

(a) The use of flat jacks (one meter diameter) to determine insitu rock stress conditions, and rigid plate -bearing

apparatus installed underground to measure potential swelling pressures in a bedded clay shale.

(b) Use of instrumentation to monitor and control blasting techniques for both surface and underground excavations by particle velocity measurement.

(c) The use of piezometric pressure cells and movement indicators to monitor the development of stresses and deformation

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darn in a 250-ft. deep and 80-ft. wide gorge.

(d) The use of instrumentation to monitor behaviour of rock masses and to provide data on validity of design criteria for both surface and under ground exavations; including the use of invar rod -type extensometers to monitor the stability of 250-ft. high vertical rock walls in a deep gorge.

Asselin, Benott, Boucher, Ducharme, Lapointe

Design of instrumentation to determine the performance and effectiveness of a deep cut-off with provision for automatic data logging on site and transmission of data from site to head office.

G. E. Bauer

Instrumentation and analysis of slurry trench in a quick clay and in a normally consolidated insensitive clay.

Department of Public Works - Testing Laboratories

Monitoring instrumented concrete crib wharf structure to determine "bin action" inside, bearing pres sure, and total settlement.

D. E. Gill

Mathematical models of lined tunnels driven into grounds which show time-dependent deformational properties.

Geocon Ltd.

(a) Observations of ground settlements caused by a small diameter tunnel advanced through a soft marine sediment.

(b) Analyses of pull-out tests to failure on grouted anchors in soil and rock.

(c) Observations of deflection, settlement and piezometer readings of a sheet pile cofferdam through firm ve ry sensitive marine clay.

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B. Ladanyi

Use of long-term strength concept in the design of tunnel lining s.

McGill University - Department of Civil Engineering &

Applied Mechanics

Studies of flow of particulate media in large bins; veloci ty and stres s fields, dis continuities, stresse s on retaining structures, full-s cale tests on grain elevator walls.

Ontario Hydro

In the development of a transmission tower

structure which would take up less right-of-way space and be more pleasing to the eye, the need to analyze the lateral resistance of a narrow based structure arose. The state of the art in regard to lateral resistance both in respect to total stability and allowable deflection was reviewed. Model tests in sand were carried out in the laboratory to investigate some of the uncertainties in the theories. A soil pressuremeter was used in the field to assist in a better

evaluation of the soil parameters in respect to lateral resistance. Full-scale field lateral loading tests are planned in the future.

Thurber Consultants Ltd.

Instrumentation of solder piles to measure

deflections which develop as an excavation is made in soft marine clays.

University of British Columbia - Soil Mechanics Group

Laboratory measurements of lateral earth pressure coefficients during one-dimensional consolidation and plane strain.

6. EARTH AND ROCKFILL DAMS, SLOPES AND OPEN EXCAVATIONS

H. G. Acres Limited

(a) Continuing observations of the performance of earth dykes built on permafrost foundations.

(b) Continuing study of the groundwater flow and pressure in an artesian aquifer, including its post-construction performance beneath an earth-rock dam.

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(c) Monitoring groundwater conditions and the performance of an extensive dewatering system located in an 80-ft. wide by 250-ft. deep bedrock gorge infilled with stratified silts and fine sands. The dewatering syst.ern is

required to maintain the stability of the excavation and to control groundwater during the construction of the core for an earth and rockfill dam.

(d) The use of the finite element method in the study of the deformation behaviour of rockfill for the design of an

a.pprox irnate lv 450-Ft , high concrete -faced rockfill darn ,

(e) The stability of deep open cuts in stratified lacustrine clays is a continuing study.

(f) Final design of a 350-ft. high earth-rock darn to be constructed on a weak -bedded clay shale.

(g) Design of deep (up to 235 ft.) excavations

in weak-bedded clay shale including stability and surface protection. Asselin, Benott, Boucher, Ducharme, Lapointe

Designs of cofferdams with partial vertical cut -off and i rnpe r vi ou s upstream blanket.

Design of a positive cut-off made on interlocking cast-in-place concrete piles, 400 ft. deep to be constructed through coarse alluvia.

Carleton University - Geography DepartIllent

Studies of regional distribution of different types of slope failure in Leda clays.

Studies of rock glacier rnas s movements.

M. A. Carson

(a) Long-term stability of residual clay rnarrtl ed valley slopes in Queenston shales of so uthern Ontario.

(b) Long-term stability of badland slopes cut in well-fractured material in southern Ontario, Mesa Verde and Verdugo Hills.

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C. B. A. Engineering Ltd.

(a) Continuing 0 bservation of the performance of a darn constructed of earthfilldumped through water.

(b) Continuing studies of slope erosion control by use of vegetative cover.

J -Y. Chagnon

Continuation of work on landslides (sensitive clay flows). Further observations on influence of bedrock topography.

Compilation map of landslides in Lowlands shows that from distribution of slides, valley pattern can be outlined. Many field checks involving mostly seismic (refraction) surveys.

Crippen Acres Limited

Construction and instrumentation of se veral dykes on permafrost foundations and three major earth darns have been completed. Intensive instrumentation in two areas will permit assessment of the performance of dykes and foundations as the 32° isotherm recedes.

Division of Building Research, National Research Council

The measurement of settlement and the temperature regime of the sandfill dykes over permafrost was continued at the Kelsey Generating Station in northern Manitoba.

Geocon Ltd.

(a) Continued study and piezometer and seepage quantity observations of leakage through an earthfill cofferdam retaining a

hydraulic head of 50 ft.

(b) Rock mechanics study and inspection of a deep excavation in steeply dipping slate bedrock.

(c) Studies, including the effects of slope stability related to a movement of foundations in an old powerhous e structure founded on bedrock.

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(d) Laboratory and field model tests as part of a study into the mechanism for pre -inducing failure of a deep cut below river level in firm clay in the Mississippi, U.S.A. The

studies are part of a scheme to dispose of a sunken vessel in over 100 feet of wate r ,

(e) Studies of large-scale instability in mine spoil piles in a tropical area of South Ame rica.

(f) Studies of dewatering and slope stability relating to large-scale strip mining operations in lateritic soils.

(g) Monitoring of construction pore pressures under a high embankment constructed in an old landslide area.

Hydro -Quebec

(a) Etude du comportement du barrage principal d 'Outardes 4, apr

e

s sa mise en e au ,

(b) Etude pour l'automatisation des lectures et

l e teIetraitement par ordinateur des donnees d 'aus cultation du bar rage principal Manic 3.

P. LaRochelle

Stability of natural slopes in sensitive cemented

clays have been analyzed. It is shown that the residual strength concept might be applicable to the problems of long -term stability in cemented clays.

v.

M. Lawrence

Research on the stability of slopes in naturally

cemented soils. This is both a study of the natural slopes such as those along the Ottawa and St. Lawrence Rivers and cut slopes.

A finite element method of analysis and design for these slopes is being attempted, use being made of valuable field and laboratory info rmation collected.

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1.P. Lies zkows zky

Pore pressure distribution under high embankments in va rved clays.

McGill University - Department of Geological Sciences

(a) Evaluation of techniques used for the

investigation of engineering geological conditions beneath foundations.

(b) Use of geophysical equipment in small diameter exploration drill holes.

G. C. McRostie

The excavation bracing for a 40-ft deep cut in reported in 1969 showed long-term loss of tension in tie backs. of anchorage in shale rock sockets is suspected.

R.J. Mitchell

clay Creep

Various aspects of slope stability are currently under study - these include groundwater studies, predictions of stress and velocity fields in slopes using finite element techniques, and a study of soil strength in the low stress range.

G. C. Morgan

Investigation and clas sifica tion of shoreline

processes leading to instability and regression of the shoreline around new lakes and reservoirs. Application of the results to a number of future large reservoir areas in British Columbia.

Ontario Department of Highways

Determination of the compressibility characteristics of soft sensitive marine clay deposits when subjected to plane-strain loadings.

Time-rate consolidation settlement induced in cohesive subsoils by earthfill embankment loadings - monitored in the field to

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Ro M. Quigley

Erosion and slope stability, Lake Erie North Shore Bluffs.

N. W. Radforth

Technology for terrain analysis appropriate

to engineering requirement in locating rights -of-way and excavation characteristics for gas and oil pipelines was developed for application in permafrost and discontinuous permafrost zones.

University of Alberta - Alberta Research Council

(a) Stability of slopes in Cretaceous shales.

(b) Stability of dikes on muskeg.

(c) Stability of hydraulic fill sand tailings dams.

(d) Stability of hard rock slopes.

(e) Prediction of pore pressure in earth dams.

(f) Design of damson compressible Iou ndatio ns .

(g) Rock mechanics considerations for dam foundations.

(h) Landslide cl.a s sification and mapping in western Canada.

University of British Columbia - Soil Mechanics Group

(a) Theoretical and experimental studies of the behaviour of slopes and dams during earthquakes. Finite element methods of analyses. Shaking table testing of models.

(b) Analysis of creep deformations of slopes.

(c) Finite element analysis of seepage through slopes and into excavations.

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MEMBERS OF THE CANADIAN SECTION OF THE INTERNATIONAL SOCIETY FOR SOIL MECHANICS AND FOUNDATION ENGINEERING

Name Adams, J. 1. Agensky, N. G. Aggarwal, S. K. Ahmed, S. Aitcin, P. C. Ali, P. Almeda, F. A. Anderson, K.O. Title or Occupation Supervising Engineer Executive Engineer Engineer Graduate Research Assistant Associate Professor Instructor, Computer Systems Technology Activity Manager, Toronto Airport II Associate Profes so r Address Soils Section,

Structural Research Dept. , Ontario Hydro,

200 Kipling A venue, Toronto 18, Ontario.

Racey, MacCallum & Bluteau Limited,

8205 Montreal-Toronto Blvd. , Montreal 263, P. Q.

William Trow Associates (Hamil ton) Ltd. ,

1870 Barton Street East ,

Hamilton 31, Ontario.

Soil Mechanics Laboratory, Dept. of Civil Engineering and Applied Mechanics,

McGill University, Montreal, P. Q.

Dept. of Civil Engineering, University of She rbrooke, Sherbrooke, P. Q.

Northern Albe rta In stitute of Tec hnolo gy,

11762 - 106 Street, Edmonton, Alberta.

Century Building, 360 Lisgar Street, Ottawa, Ontario.

Civil Engineering Department, University of Alberta,

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Anderson, R. Argue, G. H. Artnstrong, M. D. Arvidson, W. D. Ashtakala, B. Aziz, A. Babar, N. Y. Baggott, B. L.

Soil Mechanics Engineer

Research and

Develop-rnerrt Engineer

Director, Research and Transportation Sys tern s

Soil Mechanics Engineer

Planning Enginee r

Enginee ring Geologist

Water Resources Engineer

Senior Design Engineer

Asselin, Benott Boucher, Duc ha rrne , Lapointe, Consulting Engineers, 4200 Dorchester Blvd. West, Montreal 215, P.O. Construction Branch, Depa r trne nt 0 f Transpo rt , 360 Lisgar Street, Ottawa, Ontario.

Research and Transportation

Sys te rns Branch,

De pa r trn errt of Highways, Down s v i.ew 464, Ontario.

Canada De pa r trnent of Regional Eco no mi c Expansion,

P, F. R. A. ,

P.O. Box 908, Saskatoon, Sa s k.

Depar trne nt of Highways,

Gove r nrne nt of Alberta, 97 Avenue-l06 Street, Edrno nton , Alberta. H. G. Acres Li rni te d , 1259 Dorchester Road, Niagara Falls, Ontario. 6 Belgrave Terrace Road, Karachi 4,

West Pakistan.

The Shawinigan Engineering Cotnpany Lirrri te d ,

10201 - 104 Street, Edtnonton 15, Alberta.

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Baikie, L. D. Balasubramonian, B. Ballivy, G. Banerjee, N. N. Barsvary, A. K. Basarke, N. S. Bauer, G. E. Baz ett , D.J. Beaty, A. N. S. Soils Engineer Graduate Student Graduate Student Graduate Research Assistant Senior Foundation Engineer Structural Design Engineer

Assistant Profes sor

Principal

Head, Foundation Section

,

Materials Testing Laboratories Ltd. ,

4052 Gravely Street, Burnaby 2, B. C.

Civil Engineering Department, University of Alberta,

Edmonton 7, Alberta.

Soil Mechanics Division,

Civil Engineering Department, Ecole Polytec hnique,

2500 Marie Guyard Avenue, Montreal, P. Q.

Soil Mechanics Laboratory, Department of Civil Engineering and Applied Mechanics,

McGill University, Montreal, P. Q.

Materials & Testing Office, Department of Highways, Downsview 464, Ontario.

Department of Highways Bridge Office,

Parliament Buildings, Queen's Park,

Toronto, Ontario.

Department of Civil Engineering, University of Ottawa, Ottawa, Ontario. C. B. A. Engineering Ltd. , 4545 Main Street, Vancouver 10, B. C. M. O. T. Construction Branch, Department of Transport, 360 Lisgar Street, Ottawa 4, Ontario.

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Beckett, J. N. Bedell, P. R. Bednar, R.J. Belyea, P. S. Benson, R. P. Berezowski, M. Bertok, J. Bezeredi, J. Bieniada, S. T. Manager Field Operations Engineer Soils Engineer Consulting Engineer Staff Consultant, Rock Mechanics Soils Engineer Design Engineer Engineer Soils Engineer Geocon Ltd. , 14 Haas Road, Rexdale, Ontario.

H.Q. Golder &: Associates Ltd. ,

747 Hyde Park Road, London, Ontario.

R. M. Hardy &: Associates Ltd. , 10214 - 112 Street, Edmonton, Alberta. P.O. Box 44, Fredericton, N. B. H. G. Acres Limited, 1259 Dorchester Road, Niagara Falls, Ontario.

R. M. Hardy &: Associates Ltd. , 10214 - 112 Street,

Edmonton, Alberta.

Construction Engineering &: Architectural Branch,

Ministry of Transport, 360 Lis gar Street, Ottawa 4, Ontario.

Ripley, Klohn &: Leonoff International Ltd. , 1847 West Broadway, Vancouver

9,

B. C. DND Canadian Forces Headquarters, DCCE/DGC /DCEDE, Victo ria Is land, Ottawa 4, Ontario.

(44)

Bilton, L. Blunden, R. H. Bordeleau, J. B. Bourget, S. J. Boyd, J. L. Boyer, L. Bozozuk, M. Bradshaw, T.J. Brawner, C.O. Earthwork Technician Geologist Technical Officer Director Technical Staff Operations Manager Research Officer

Senior Soil Mechanics

& Foundation Engineer

Principal

Mate rials & Res ear ch Section, Manitoba Department of

Highways & Public Works, 1181 Portage Avenue (Annex), Winnipeg 10, Manitoba.

C. B. A. Enginee ring Ltd. , 4545 Main Street,

Vancouver 10, B. C.

Division of Building Research, National Researc h Council, Ottawa 7, Ontario. KIA OR7.

Ste , Foy Research Station, Canada Department of A gri cultur e,

2560 Chemin Gomin, Ste-Foy, Quebec 10.

Division of Building Research, National Research Council, Ottawa 7, Ontario. KIA OR7.

Roctest Ltd. ,

435 Norman Street, Ville St. Pierre, Montreal 645, P. Q.

Division of Building Research, National Research Council, Ottawa 7, Ontario. KIA OR7.

H. G. Acres Limited, 1259 Dorchester Road, Niagara Falls, 0 nta r io ,

Golder, Brawner & As s o c s , Ltd. ,

224 West 8th Avenue, Vancouver 10, B. C.

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Bredeson, L. Brittain, R. G. Brodeur, J.C. Brooker, E. W. Brown, J. Brown, J. D. Brown, R. J. E. Brzezins ki , L. S. Buck, G. F. Buhr, K. Vice -President Geologist Vice -President President Project Engineer Assistant Professor Research Officer Chief Engineer Soils Engineer Engineer

John D. Paterson &: Associates Ltd. ,

1479 Laperrie re Avenue, Ottawa 3, Ontario.

Crippen Acres Limited, 491 Portage Avenue, Winnipeg 2, Manitoba.

Western Caissons (Que.) Ltd. , 1950 Fortin Blvd.,

Chomedey,

Ville de Laval, Que.

Brooker &: Associates Ltd. , 11738 Kingsway,

Edmonton, Alberta.

C. B. A. Engineering Ltd. , 4545 Main Street,

Vancouver 10, B. C.

Department of Civil Engineering Nova Scotia Technical College, Halifax, N. S.

Division of Building Research, National Research Council, Ottawa 7, Ontario. KlAOR7.

Geocon Ltd. , 2060 - 55th Avenue, Dorval 760, P. Q. Thurber Consultants Ltd. , 628 Dupplin Road, Vi cto ria, B. C.

Water Resources Branch, 693 Taylor Avenue,

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Burn, K. N. Research Officer

Burwash, A. L. (Mrs.) Project Engineer

Burwash, W. J. District Engineer

Division of Building Research, National Research Council, Ottawa 7, Ontario. KIA OR7.

Muskeg Research Institute, University of New Brunswick, Fredericton, N. B. Geocon Ltd. , P.O. Box 351, Fredericton, N. B. Butler, R.C. Byrne, P. M. Campanella, R. G. Campbell, D. B. Campbell, J. W. M. Capelle, J-F. Engineer Assistant Professor

Associate Profes sor

Senior Engineer

Soil Mechanics Engineer

Director of Enginee ring

H.Q. Golder & Assocs. Ltd., 3151 Wharton Way,

Mississauga, Ontario.

Soil Mechanics Group,

Department of Civil Engineering Universi ty of Britis h Columbia, Vancouver 8, B. C.

Soil Mechanics Group,

Department of Civil Engineering University of British Columbia, Vancouver 8, B. C.

Golder, Brawner & Assocs. Ltd. 224 West 8th Avenue,

Vancouver 10, B. C.

Canada Department of Regional Economic Expansion, p. F. R. A. , P.O. Box 908, Saskatoon, Sa s k, Roctest Limited, 435 Norman Street, Ville St. Pierre, Montreal 645, P. Q.

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Capps, J. F.

Carlsen, B.

Carson, M. A.

Chagnon, J

-x .

Senio r Engineer

Assistant Profes sor

Head

H. Q. Golder & Assocs. Ltd., 1704 Howard Avenue,

Windsor 14, Ontario.

Golder, Brawner & As so c s , Ltd 224 West 8th Avenue, Vancouver 10, B. C. Department of Geography, McGill University, Montreal, P. Q. Geotechnical Division, Department of Natural Resources, Quebec, P. Q.

Chan, L. G. Soil Mechanics Engineer Canada Department of

Regional Economic Expansion, P. F. R. A. , P.O. Box 908, Saskatoon, Sa s k,

c:

topadhyay, P. K. Chen, C. K. Chen, D. S. Cheng, P.N. Graduate Student Graduate Research Assistant Soils Engineer Soils Enginee r

Civil Engineering Department, University of Alberta,

Edmonton 7, Alberta.

Soil Mechanics Laboratory, Department of Civil Engineering

& Applied Me chanics, McGill University, Montreal, P. Q.

Geocon Ltd. ,

2060 - 55th Avenue, Dorval 760, P. Q.

Hydro -Electric Power Commis sion of Ontario, 620 University Avenue, Toronto, Ontario.

(48)

Cheung, S. Chevalier, R. Graduate Research Assistant Special Project Engineer

Soil Mechanics Laboratory, Department of Civil Enginee r ing

& Applied Mechanics, McGill University, Montreal, P. Q.

National Boring & Sounding Inc. , 12260 St. Evaris te , Montreal 390, P. Q. Chiche, S. ChrnieIen s ki , A. Chow, Y. C. Christensen, C. J. Christison, J. T.

Senior Engineer Asselin, Benoh, Boucher,

Ducharme, Lapointe,

4200 Dorchester Blvd. West,

Montreal 215, P.Q.

President Foundation of Canada

Engineering Corp. Ltd , , 2200 Yonge Street, Toronto, Ontario. Engineer IPEC, 570 Dunsmuir Street, Vancouver 2, B. C.

Soil Mechanics Engineer The St. Lawrence Seaway

Authority,

Construction Branch,

P.O. Box 592,

St. Catharines, Ontario.

Graduate Stud ent Civil Engineering Depa rtment,

University of Alberta, Edmonton 7, Alberta. Chrumka, S.J.

Claridge, F.

Engineer

Senior Soil Mechanics & Foundation

Engineer

Construction Section,

Montreal Engineering Co. Ltd ; , Place Bonaventure,

Montreal 114, P. Q.

H. G. Acres Ltd. , 1259 Dorchester Road, Niagara Falls, Ontario.

(49)

Clark, J.G. Coates, D. F. Cohen, A. Cook, R. D. Cooke, W. Conlon, R.J. Coulter, T. S. Cox, J. B. Crawford, C. B. Head, Design

& Construction Review Group, Soils & Fdn. Division Head Project Geologist Materials Engineer Technical Staff Head, Geotechnical Depar trnerit Geotechnical Engineer

Senior Soils Engineer

Assistant Director

c/o Tippetts, Abbett,

McCarthy, Stratton Int. Corp. Tarbela Dam Project,

Hazara, West Pakistan.

Mining Research Centre, Dept. of Energy, Mines &

Resources, 555 Booth Street, Ottawa, Ontario. Geotechnical Department, Ontario Hydro, 620 University Avenue, Toronto 2, Ontario.

Department of Public Works, P.O. Box 488,

Edmonton 15, Alberta.

Thompson Field Station,

Division of Building Research, National Research Council, P.O. Box 118,

Thompson, Manitoba.

H. G. Acres Limited, 1259 Dorchester Road, Niagara Falls, Ontario.

Thurber Consultants, 628 Dupplin Road, Victoria, B. C.

c/o Lea-Geco International, P.O. Box 11-244,

Bangkok 11, Thailand.

Division of Building Research, National Research Council, Ottawa 7, Ontario. KIA OR 7.

(50)

Crepeau, P. M. Crysler, R. E. Culley, R. W. Dahlman, A • E. Dalton, C.J. Danys, J. V. Darch, B. T. Dascal, O. Davis, J. B. Chef de Service -Geologie et Me c, des Sols Consulting Engineer Materials Research Engineer Soils Engineer Supervisor of Soil In ves tigations Superintendent of Construction Senior Foundation Engineer In gerri.eu r - Division Me carriqu e des Sols

Associate

Hydro -Oue be c , Tour de la Bourse,

Place Victoria C.P. 6106, Montreal 110, P. Q.

Crysler & Lathem, 69 Glen Cameron Road, Thornhill, Ontario.

Department of Highways, 2430 - 7th Avenue,

Regina, Sa s k,

Materials T'e stin g Laboratories Ltd. ,

4052 Gravely Street, Burnaby, B. C.

Technical Research Centre, Canadian Nati o na l Rail ways, St. Laurent, P. Q. Ministry of Transpo rt , Marine Works, Aids to Navigation, Hunter Building, Ottawa, Ontario.

Materials & Testing Office, Department of Highways, Downsview 464, Ontario. Hydro-Quebec, Tour de la Bourse, Place Victoria C. P. 6106, Montreal 110, P. Q.

H. Q. Golder & Assocs. Ltd ; . 3151 Wharton Way,

(51)

Davis, M.M. Dean, J. P. Debidin, F. DeJong, J. De Lo rv , F. A. Derra h, E. C. Devata, M. Devenny, D. W. de Vos, B.J. Associate Professor Engineer

Senior Soils Engjneer

Marine Geotechnical Research Engineer Professor Soils Engineer Supervising Foundation Engineer Supervisor, Soil Mechanics Section Soils Engineer

Departm.ent of Civil Engineering, University of To ronto,

Toronto, Ontario.

Transportation Division,

Underwood, McLellan & Assocs.

Ltd. ,

920 Avord Tower, Saskatoon, Sas k ,

Hydro -Electric Power Com.m.ission of Ontario, 620 University Avenue,

Toronto 2, Ontario.

Lockheed Offshore Petroleum. Services Ltd. ,

1 Grosveno r Square,

New Westm.inster, B. C.

Departm.ent of Civil Enginee ring, University of Toronto,

Toronto 5, Ontario. Geocon Ltd. ,

P.O. Box 351,

Fredericton, N. B.

Materials & Testing Office,

Departm.ent 0 f Highways,

Downsview 464, Ontario.

Departm.ent of Public Works of Canada,

Testing Laboratories, Confederation Heights,

Ottawa 8, Ontario.

R. M. Hardy & Assocs. Ltd., 10214 - 112 Street,

(52)

Dio n , N. Dodds, R. B. Dom.as c huk, L. Douglas, E. [Mr s , ) Dows e, B. E. W. Dreim.anis, A. Driedger, R. Dubas, R. Duchesne, L. C. ' Engineer Branch Manager Associate Profes so r Graduate Research Assistant Associate Professor Engineer Soils Engineer Soils Engineer Vancouver 10, B. C.

J. F. Mathys & Associates, 2449 Lucerne,

Montreal 305, P.O.

Dom.inion Soil Investigation Ltd . ,

154 Victoria Street South, Kitchener, Ontario.

Civil Engineering Departm.ent, University of Manitoba,

Winnipeg, Manitoba.

Soil Mechanics Laboratory, Departm.ent of Civil Engineering

& Applied Mechanics, McGill University, Montreal, P. Q.

H.Q. Golder & Assocs. Ltd., 747 Hyde Park Road,

London, Ontario.

Departm.ent of Geology,

University of Western Ontario, London 72, Ontario.

Ripley, Klohn & Leonoff International Ltd. ,

1847 West Broadway, Vancouver 9, B. C.

R. M. Hardy & Assocs. Ltd , , 10214 - 112 Street,

Edm.onton, Alberta.

Racey, MacCallum. & Bluteau Ltd. ,

8205 Montreal-Toronto Blvd. , Montreal 263, P.Q.

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