Preliminary Planning for Permafrost Research at the Resources and Development School and Teacherage Construction Project, Aklavik, N.W.T.

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Publisher’s version / Version de l'éditeur:

Technical Note (National Research Council of Canada. Division of Building Research), 1953-03-01

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Preliminary Planning for Permafrost Research at the Resources and Development School and Teacherage Construction Project, Aklavik, N.W.T.

Pihlainen, J. A.

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DIVISION OF BUILDING RESEARCH

NATIONAL RESEARCH COUNCIL OF CANADA

'fE

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1HIN II CAlL

NOT FOR PUBLICATION

NOTlE

No.

143

FOR INTERNAL USE

PREPARED BY J. A. Pihlainen CHECKED BY APPROVED BY

PREPARED FOR Robert F. Legget March, ＱＹＵｾＮ

SUBJECT Preliminary Planning for Permafrost

Research at tbe Resources and Development School and Teacherage Construction Project, i\klav1k, N.W.T.

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-General:

The Department of Resources and Development will

construct a ten room school and an eight apartment teacherage

at ａｾｬ｡ｶｩｫＬ N.W.T. during 1953 and 1954. This Division of

the National Research Council has been offered the opportunity to stUdy the effect of the structures on permafrost conditions and has been assured the cooperation of all government

departments engaged in the design and construction of the structures.

The purpose of this note is to review the general details of permafrost research which could be carried out. At this point I would like to record the kind cooperation of Mr.

C.V.F.

Weir, Chief, Engineering and Architectural Section,

and

Mr.

Robinson, Architectural Section, Department of

Resources and Development for details on the design of the structures.

Aim:

The primary aim of this project will be to record data on the effects of buildings with pile foundations on permafrost

conditions. The project will also yield valuable information

on permafrost and soil conditions at Aklavik. Work Schedule:

The following work schedule is recommended for installation of the 14 thermocouple strings:

The portable drill rig and other equipment will be shipped to Aklavik from Norman Wells by the first boat during

the summer of 1953. With the arrival of this equipment at

Aklavik, the Resident Research Officer at the Permafrost

Research Station, Norman Wells, will fly to Aklavik. It is

estimated that approximately three weeks will be required to

drill the exploratory and thermocouple bore holes. Making

and initial installation of the thermocouple strings will take

approximately two weeks. The equipment and the Research Officer

will then return to Norman Wells. The final installation of

switch equipment will be made when the bUilding has been

completed in 1954. Thermocouple readings will then be taken

monthly.

ThermocouEle Installations:

Eight thermocouple strings (averaging five thermo-couples per string) are proposed for the ten room school and

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3

-six strings for the teacherage. At first glance this may

seem to be a large number of installations since significant

differences in soil temperatures are not expected. All, and

even more, of the proposed il.stal,lations are recommended

since ｩｮｳｴ｡ｾｬ｡ｴｬｯｮ before the structures are built is

relatively simple and inexpensive. Discontinuing readings

of a thermocouple ｳｴｲｩｾｧ if significant temperature

differences are not indicated, amounts to a loss in materials of approximately fifteen dollars.

Several details of the installations are shown in sketches at the end of this report as follows:

Sketch #1 Sketch #2 Sketch #3 Sketch #4

Lot plan and location of buildings

School - location of thermocouple strings Teacherage - location of thermocouple strings Typical thermocouple string.

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4

-Gost Estimates:

The following notes record approximate estimates on

the costs of the project. The breakdown suggests the cost which,

if approved, could be borne by the Division and the Department of Resources and Development.

Division of Building Research Costs: Item 1. . 3. 5. 6. Descripti2.£

Transportation - C.P.A. Norman Wells, Aklavik and return:

1 person summer 1953

1 person summer 1954

Shipping - Soil Samples from Aklavik to Norman Wells

Drill rig and equipment by boat from Norman Wells to Aklavik and return

(1,000 lbs. at $15/100 Ibs.)

Room and board - 1 ｾ･ｲｳｯｮ (N.R.C.)

5 weeks (l week at $45.00)

Thermocouple wire - 3,500 ft. copper-constantan #20 ($0.11 /ft.)

Switches - 4 - 28 pt. Lewis switches at $90.00 each Miscell8.neous TOTAL (N.R.C.) $200 200 100 150 225 385 360 100 ｾＱＮＷＲＰ

Resources and Development Costs:

ｾＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭＭｾＭＭ

7. 8.

Drill rig shelter - Wooden shed

approx. 10 ft. X 18 ft.

1 Driller Helper - 5 weeks, 300 hrs.

at $1.50

Miscellaneous (scrap lumber, electricity etc.)

TOTAL (Res.

&

Dev.)

TOTAL N.R.C. and R.D. ｾＲＮＵＷＰ

300 450 100 i850

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