Proposed field soil testing device

(1)

Publisher’s version / Version de l'éditeur:

Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n’arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca.

Questions? Contact the NRC Publications Archive team at

PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information.

https://publications-cnrc.canada.ca/fra/droits

L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D’UTILISER CE SITE WEB.

Technical Memorandum (National Research Council of Canada. Division of Building Research); no. DBR-TM-1, 1945-08-01

READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE. https://nrc-publications.canada.ca/eng/copyright

NRC Publications Archive Record / Notice des Archives des publications du CNRC :

https://nrc-publications.canada.ca/eng/view/object/?id=1804cb91-73b3-4583-8f07-03fb154ce68f https://publications-cnrc.canada.ca/fra/voir/objet/?id=1804cb91-73b3-4583-8f07-03fb154ce68f

NRC Publications Archive

Archives des publications du CNRC

Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Proposed field soil testing device

(2)

National Research Council

A descriptIon of 8. P!'oI!osed tE;stiJ::.e ､･ｾｲＺｩｃｅＲ f'i)"C'

determining the trafficability of solis by

ａＮｆＮｖｳｾ - with a brief discussion af its use... I

issued in advance of trials of an ｾ｣ｴｵ｡ｬ model

of the device in view of the urgency of the

(3)

ｐｲｾｰｯ｣･､ｾｩ｡｝､ｓｮｾＧ m_estir7 ｄ｣ｶｾｾ･

_,｟ｾ ::::-:.._•.:?-, ｾ ...ｾ _ _ｾ｟ｾ ...］Ｍ｟ｾＮｾｾＬＱＺｾ｟

(A contribution from the Director-ate of Vehicles and Small Arms)

(1) The urgent need for a reliable and simple device

f ) ,.,(J. +....e-C",.,Ｎｾｾc· ."•.or''I:.a ."'[',Co,1-'ｾＭ r'" [) P', )... r.<:;.T'-4-"..."1'e ,. o./." ....,:) ..l Coｾｯ'"I.L _ｾ Is l'n "1 Pｾｬ a.., ('o 'e. , ' "J'.,..., r e 1·'• • ､ＬＬｾＮ +.; (',n

to their trafficability, is one of the main impressiocs

formed :from a .st\yjy of the records of 't"cth British and U.S.

"Eud-Crossing Committf.:'es'! by t.r.OS8 in Canada studyEJg the

same general problems. This general impression was emphatically

confirmed during a recent vlsit to the U.S.A., on behalf

of '(he; Cr:l1l3.di'.:n Ccmmittee, :ntc!'83t:in thL" specific pro·,

"b.ler.:1 i\'aS e.i:(1)'u.:n.tered ill dj_s ':::J.S S Si 02:"18 wj.tIl re}"'.reSE;n.t ati \''9S

of U.S. Ordnance, U.S. Engineer Boa=d, U.S. Navy and British

AnI"" ＨｾＫｾｾﾷｬＢＨｾＩｯＫｲｲＴｴ｜

...'1.). LJ.] U 'oJ｟ＬＬＭＮｾ • Ｌｾ ..",1-' ... ...,.1 ...i ..

(2) }tc:cord ingly, a!'id in viev.; of the 5_mmedi ate urgency

of thi_s ｰｲｏｾＩｬｾｬｾｩＬ frem ｾｨ･ naval D.r.ld ｭｩｬＺＺｴ｡ｲｾＧｰｾｊｩｩＱＢｲ［ｓ ,:'f ＧＱｊＮ･ｶＮｾｾＬｾ

th9 ｭ｡ｴｾ･ｲ GaG Deen dlscussed and sTudied In ottawa.

A

ｦｬ･ｾ､

testing device ｨｾｳＬ in consequence, been ､ｇｳｩｧｾ･､ by Captain

M. G. Bekker of the Directorate of Vehicles and SnaIl Arms. C8ptain Bekker was one of the party which visited the U.S.A.

in June, 1945; his interest j,n the general qt::.es·::l.Dil of tl'::.ck.ec1

vehicle design is ｾｦ long standing0 Normally a pilot model

of the device would have been made up in Canada and ｦ｡ｩｾｬｹ

thoroughly tested before the preparation of any ､･Ｕ｣ｲｩｰｾｩｶ･

mi';ffiol'cnclUlli, snd1 a.s ｴｨｩ｣Ｚ［ｾ The urgency of ｴＺＺＭＺＮｴｾｰｲｯ｢ｾｾ･ｭＬｨｯｷ･｜ｦ･ｉＧｾ

has lad to the preparation ｡ｮｾ circulation of this note

in order to introduce the device to others interested at

+\.-._ｾＱＱ e e -¥ • •! ｾ eｾｾＮＮＧＬｾ［ m., D'n'1, ""r Ｎｾ (-.i"'i,.., i ,c. 4f' C ':. S c' t"L-.ｲｾ d "':::. ,.,..; r·ｩｾｽ r(lt""'r .."ＬＬｾＮＬ ,; __IJ_

.cl.l._..L ... v C, .... l.\:: , l c ; l ....ｬＢＢ､ＬＮＬＧＮﾷ｟｣ｾ J.. • .c..<,::, .-11\:, 'O..·.'-'-"r•. H L c t j " n..' " " , , ,

the wr?:.y to ,3 solrl.Uon of the immediate prcILJ.Eml"

(3) The objective associated with thG military use

of fiald 3051 testing devices is to obtain a relatively

-..ＮＺｦｭｲｬＢｾ Dr...!-l .... r'C· ＮｾＮｦﾷﾷ ..:f0tpT"""""'nl'T'.o' .L.\-lE ＭＨＬＧＺＢＧｾ r"l-"n:'lJ....ＭﾷｾＨＩｄＮＭＮＮ -jY1 ''''''rt''l .

:-,ｾＭＭＺＧｴＩ .... '::. ;,,,:J.•h ' IJ J l.le"-'ＬＬｾ "' •• , .lto> ｾＱＢＢ :..' IJ...L ...(Jl ..u .1,-1•. ,;e,. ｟Ｌｾ <:1.".

ｰ｡ｲｴｩ｣ｵｾ｡ｲ｡ｲｾ｡ before the crossing of this area by A.F.Vs,

in such a way that the trafficability of the area (in

rela-tion to the F..F,,\",) t.:' :'::0 used) can be deter'mined in ad';-anc2o

All vehicles will subject the sc11 of an area they are to traverse to vertical loading, due primarily to the weight

of +'\-e_.. _viI "E,l.lJ'cle_{v .'}J . . . ' . ,CA....:."nd ｴﾷｾＩ ...110r'';ｾＮＬｾＢＧ［ｾｲｬＢＧｾｬ .., ... l,o...L .,j.l...'., ｾ｡､ＢＢｲｔ J..1 ....£')' l._·1"':"!..-4.t.... tr)'..1... .L..'11'";.) f.... ｜ＢＺＬｾ., c,...."

ｶ･ｬｯｰｭ･ｾｴ of resistance in the soil to the ｴｲ｡｣ｾｩｶ･ force

of the vehicle. The 8xact state of stress in the soil 1s

complexu Essent:ially, )lOW8ye.t', it is depend..ｾｮｴ Ui)on ｴｨｾ

two types of loading mentioned, resistance of ｾｨ･ soil ｾｯ

(4)

ＨＯｾＩｉｪｾＺｩｯｬ､ｴ･ｳｴｩＮｲｬｩｾｾ dE;\fj.Cr2.f.\, ｪ｜ｾｬｴ｡Ｎｾｌｌｾｾ ;:.f leb. ｴｩＮｾｩＧｖｴｾｴｊｦ［ｾ･ｲＮＱ

stlldi.ed, can, ［ｾＩｾｾ £rDl-i!.J(-;tl ｻｾｳｦＧｄｊＮＮＮＱＰｖｬＺ［ＢｾＺﾷｾＺＢﾷ［Ｎ｣［ｩｃＺＮｳＺﾷｾＧＺｾｾｾａＮｲ 'C:r:;,::::ttng

ＱｄＮｾｾｾ｣ｴｊＮ｡ n1S 1ft;;ｾ p8 D,et·r C::i.t j. ()(l (1･ﾷｾＬＯｩＮ e i3Ｚｾ［Ｌ c:t]1d :3 C CｬＡｾ ':::ｩｾＬＱ［ＬﾷｾＮＡＮｴＬＬｾ ;,:;:ｾＱＮＺｾ 'f..' 1:hＸＺＺｾ e

two types.' AIl. tIle fi;-;ld ::;bJ''.D.l' ｊＺｳｳｴｩｴＺＧｬｾＬｩｮｳｕＧｩＩＺｊＱＨｪｲＡＬｾＬＵ ;:;c; ｦｾｵＺＧ

ｳｴｵｾｩＨ［ｾ are sither too ｣ｷｮ｢･ｲｓｏｾｬ･ｾ or tc;o el.at:lrat2 for military

'L'1',::e""' ...ｾｾ In... P',:'I'PI"'''',=-- ｾ .J-, ("..A_.M Vr"E''''. . . .--.1 ｊ｟ＢＢＧｾｬＺＺ［ＢＧ［ＭＩＬＢＧＧＧＧＧＭＧｾＭｾＧｾＧ ...t.4 .. , ｾＮＩｖＮａＬＧｃＬＨﾷＢｪｾｌ •. "}'lc,'"'',_. ""C]'B)- ｣ＧｩＧｾ＼ＺＧ［ＢＧＺＢｻＭｲ'.) .,j ... '-".J...'.-;iU . .1. ＧｲＧｩＧＺＢＢｾＧｲi..>l;...ｲＮＢｾ ";1:'t.. .• v

surfacej witrtCllt the appli,c8.ti.aJl of ｂＬｶ･ｾＧｬｩ｣｡Ｇｬ __ｌＰＳｾｾｾ The

Iii:;ｩｬｾＬＺｦｴ y.ati (;[1 !:::'7.1.ｴ｟ｾ e s, }:-::1.rt t｜ＧＬｾｾ｜ＮＺＮＱｽＺｾ ..'::":3 ()ＱＮｾＧＺｪＧＺｙｾ｝ cｾＧｩＬＺＺｾＬ rｾｾｾｾ｟ｾｩＧ (1 ｾｬｬ e'018 ,

S "J.

rJ

j ＺＺＺｾ Ct t ｲＱｾ［ｾＺ ()11. ｾ｢･ j,llf!, ｴｾ＿ SｾｾＨＭＺ､Ｎｴ｣ｾｾＺｬＭｴＬｾ＿ｉｾ t 1.(::;.1. ＺｾｾＨＺ｜ＬＺｾＮ､ＮｬＺｾｻ v n,r1.l":lllS

1ll€arlSw ＱｾＡＱＸ '..l3f:: of ｾｾＮﾷｾｯｮＺＧ･ＲＮＱＮＺｐｾｊＮｩＮＱｊＺｾＺｩｪＬｾｴＮＮｲ｣ﾷｊＱｊＨｾＧＺＺＺＬＺｩｾｴｩﾷｊＮｾＩＮｬｲＨＺＮＢＧｲＺｾＮｊｊｾ［ｲｾ

a ､･ｰＧＺｲｦＲＬｾＺ of" ｩＱ｣ｬｲｾｴｺＺＮ［ｮＮｦＺ｡Ｎｾﾷｾ .,:.oa,.d·.l:c.t; (iut ﾷＺＮｴＩﾷ［ｾﾷﾷＺｲｾＺｴｾｴｬｇｾ［Ｎｬ (l(;5 I'lOE·t""

z,0 [1tell. 1 [) 3dj,rlgs aｾｴＺ･ c tr;n.:t.-L,Y 5l':

,J,.ＨＺＺｾＮｲｾｬ to)p(3.ndｩＬｾ nt ＭｾＮＧ t:e ｽＧｾ 'CｾｾＮ ttsrl

'iｾＧ｛ＺＱＢｮ eｲｾｾｾ tJ.cＬｾｾ tt C.C:fjｾｬ C.c'ru'bｾｾ (1(:;Y t!Le 5. dｲＮＮｾ｡ｾＧＳ ()ｩｾｾＧＺｾＩｾＮＧｾ riCt,C-ｲｾｾｴｾＺ［ l C;l."l ＮｾＮｾＧＱ ta

t ]::.esc:LＮｾＺＬＮＬ ((ccl .;:ｽＩｊＮｾ D B. }l('1ｸｾ .1ｾ＿Ｚ C.f;<':ｴＺＭｾｾＺｾ ＮｾＮＯ［Ｎ () \,1 GJ/! (:; ;:J .... ." ｾＮｾ｟ r:.dＧｪ［ｾ c.ｦｾﾷ .s sheaJ'11.ng ｳﾷｴｬｬ･ｓｾＹｓ j ..D the ＬＳｩＩｾＱＬｾ ( 5') Ｇｾ｜Ｌ［ｽｾ r.y· ::,.!.' t hｾ｡ f;t: (1t:}'';fI cＭ［ＺｾｾＺｩ｣ｾＮｾ E: c! l' F{IE:ｾＮｾ T: .:t.1'1t (,: _.:,ＺｾＭＩ［ｾ t ｾ dt)Ll..1)t -.' 1e sst'1ｦｾ :'/ }ＬｾＮ c. v' (,; tJ8ｾｊ n. ＬｾＱＬｾＱ d ;.:Ｎｾｾ t;.1'·:.. ＬＺｾＮｲＨＺｾ［ＱｊＮｾ (;'7"ｪｾＮｬｬｅｾＺ 7, ;) be c:f ｲｾｪＮｾＧｅＮｾ a t ,15e ,i11 IJ r· act.i.c eｾ It ,t."3c:er;:sr:: r- (;ｾＧＢＺ 3.·t) ｟ｦｾＮＸ ..ｾＬＧＮＡＺＧｬｬＩｖｾ［ﾷ＿ＺＧＺｬｾ［Ｎｲ［Ｇｪ tﾷｾｲＱＮﾷｴＡｊＮＧｾ :.; ':).1:'Eli:e ｣Ｈｾｲｲ･ｬ｡ｴｪＬＰｾ tetwzen 'the Ｎｲ･ｳｾｬｴＺＵｯＮｾﾷ fjpJ.d ｴｂｳｴｾｾ［ by ｴｾｾｇｓＸ (levi(:e,s arlJ : : tt·It=.: ｒ･ｴＺｴ［ｬｾｾＮＺＬｾﾷＺＮｾｴｲｾＮＺＡＮＺＺＭＧﾷｩﾷＺＺＮ｡Ｇｦ［ＺＺＬＺＧＱＮｴＩｲ ,::r + ('.: ｾＺ＾ＺＮＮ［＼ＺｾＮｾ｜ＺＧｾＧＡＮｾｩ｣ＺｬＱＧｮｇＬｾＳ

tfJs""c.ei:1 E:'£.-\:yP l)e ctf.fl..e1..1J.t ·to n.c,1..［ＮＧＮＧＺＺ［ＧｶｾｾＬ .. ｉｾＺＧｾＺｾＨＩＧｪＧ［ｾｬＢｬＨＺＺＨｩＮｬｦＺｾＮｩＺＺｲ［ＮｾＺｴＺｬ

?;'Jul (1 ｾｰ Pf;9,1'" t,:J t)(;; dD,t; ＮｾＮＮｉ ( ) tＱＱＨｾｻｾｾＺＨｾＮ B1G ＨｾｲＧＺｾ f:ＺＺｾｴ［Ｇｾ (,ｅｾＺＺ 1

:e

C1'" ｩｾｾＮｾｻ｡Ａｅｲﾷｬ･ ....

ｬＧＩｦｾ t..,·weeIi a ＵｮｬｾＬｉ ::.. C("[JG t1.tt,:1 H i'·:'-ＺＮｲｩｾＺＮＧ t(3..nl: t ｾＺｊＬＡｾｃｾＮＬＺＩ｣ﾷｾＩｴｾｐ J..,(1

a

\vt tYl tJ,,.8 f" act t:'1Ht tt}.e ｾ［Ｇ･ＨＺＮｾＺｾＮＨｾｕＬｓＨｾｾｾＺｾ｜ｬｬ ceｾｾ :1 () rJC［［ｾ S LJ,l)j ｜ｾＮｾ CＮＺｾＺｴｾｴｾｾｊ ;::,c)'.j"1

to t:r19 tl{!() j.rtf],f ..P(.:).rl{1ｅｾ r'..l...: t:/P8 '::[ ｊＺｾＬ f' 1.Cj[j.\:1,:l. rIg ｉｾｾ rJ.Ll3f._:;;ｉＮｾｴＮｬｾｩ 1/'2!:.2. e1e

O.Per'&.ti ()r: ) ｔｲｾｴｃ cJ.0 ｾＮＭＺ ':: ＮｾＺ t· tlp.p.rC)Et (:ＧＱＢｾ tＭｻｾｴｽﾷｾＧｌ S '::\I,?,'3J.d;:!" "':.tｕｬｬＬｾ 1. s

given by ｴｾ･ＱＳｲｬｾｪＮｳｨｶ｡ｮ･ＧｾＳｴｩ｣ｫ｢ｵｴＬ iIi ＧｴｬｾＸ form Ｒｾ fer

pU:.11i ｾ tsE.:ｾＳＮＬｲＬＮｾＧＺ .:J:C('.7Ji:.: 1..ＨＩＺｾＺｬＮｩｾＳｾＨｾｦｬ dｾｾ f'Ol.' \/t..ｾｴ｛ t j,Cct1 ｾＭｃＺ｢ＮＨｾ ,....r::i:) IJ

Ｎｲｾｔ 1:') Ｌｾｾｬ｡ｬｊ picf:! CJ. Ie:-l (1Ｇｾｬ S POln.t;(\(1 (.'1ｾＬＬｾｾ t ｴｾＡＬｾｬＧｾ［ :l1'1 ｶｾ｣ｽｌｾｩ､ＮｾＬｾｯ t ｬｾＧｾＧ

d. i ｦｾｦＧ i cＡｾＱＱＮ c t ':: ｾＱＮ nt;:'cJzltIt:; 8 ｾｾＮｾＧｴｊｩＺｾｬＮｾｴＧｲｬｾ［Ｚ !'Ｚｾ 4. (: d.l 1 c· ndj.Ylf :i,［ｾＺ t. () tｾＮ｜Ｈｾ

ope.1.'" at J.C)_ｲｾＬ _ｯｾＺ thｾＺ 3ti _Ｚｾ r','.ｾＺｉｾ \1c::.:1 i. .::." Ｍｴｾｨ 1.2 _{ＧｩｾｬｴＮｾ} .[1i':: ｾＮｾ '.in.F;: ｾｾ..'j, '-::'ＱｾＧ e'v｣ｾＺＮＺｾ

·the ｨＨＩｲｩｾ［ｯＰｴ｡ｊＮｲＨｩｯｴＬｩｾｮ｣ｾＺｾｪｾｾ･､ｳｴｩＮｾＦＮｌＨＲﾷＺｦＧﾷｾ･｛ﾷｳＲＰｾｳｩ､ｇｲ｡｢ｬｹ

f.I'oJn ttJ.at ｉｮ､ｇ｣Ｎｴｾ､ＮＧｬＮｬｲｬｻＺｬｾＧ［ｲ ·\r'a.t':,i..ﾷＢＺＺｾＮｾｾｾｳ 5.11. J2'-,'t:2.,)11.-..

(c,) Iri. ·;·lD :::..ｴＧﾷｾﾷｉｾＺ［ｮｾＮｲＬｴ t',(i ｮｊＳＨﾷＧｴｾＬＨｮｴｾｳＺ］ｲｴｾＺﾷｾＺｾＧ･｣Ｎ＿ＬＡＨＺＮｾＮｲｾＭＧﾷｬＬＺｾｴｾＮｾＮｽＬｴｪＬｏｾ［ｾ

CaJ)t s,ｾｌＺＺｾｾＬｾｾＪｾＬＱｻ 8ｉｾ 'r"l!3｜ｾＺ rj :8r:ｾＮ €f\.'3{J. 1':"P'.r:ｲｾＮｾｪｬﾷｴｾＺ 11,'=; ....Jｾｾ｜ [.I .l:Pl ｾ__.kE.:ｾｾＬ［ＺＧＢｾ

ｑＱｊＡｾ ,) ＨＮｾ｜ .peIr:.ＧｾＬ f"r\)Ul 'ti'd.:: ＮｾＺﾷｺＺＮｾ 1<r..B CＧｾｌｾＮ･ j r ＦＮＧｾｖ J..ｲＺｩｾｾＢＧｩﾷｾＮｴＺ｟ J ｾＺｾＬＧｾ ,c-ｾＺｩｲＺｊ 1)ｴｾ r...:{

mc s t ｾ ()f!ｪ｟ｾ S c)ｩｾＧｾｴｬｾＮＺｴ s ｲＺｃＮ･ｲｇＮＨｾ '::..'"'8.,:,,::(1tl;Ii.:··;n ttl::"!t Ii (",ｴｾ［ＮＱＬｾｌ 'L3 c:;· "!:!le

pro· p0ｾｾ e0. 111::'::et·]｛ｾＢｮＮ "l.ｾＺＧ｜ｲｇ cｴｊＮｾＬｴＮＧｾｾＬＬｾｾ n}(JｔＭｾＺ E;.

,1

Sｪｾ Iy 1) e ::tＧｲｾｩＨｾ J＼Ｚｾ 6.j (. ｜ｲＺＧＺｾﾷｅﾷ

d8vi c e is 14

j.t t2/1 ＬＮｾＬＭＮＬ i

tr.

+-1(;G SJ.n't,·i,i.C..1:' f"GC't"'-"ｾＢｦＱＬｾＺﾷＱＮ t,lＺＢｾＭ［ＺＬｾ Sr\apｦＺ［ｾｉ t ｾＮｾ

ｾｾｾｾｲｾｾＺｾｾ

,..

ｾＺ

t:

ｾｅｾ

C

tT ;'f ｾｪｾ r

:;i

ＺＬＱ［ＧＺＧｾ .y:［ｾ ,:, \ＺＧｾｦ［ＮＧ

,;

ｾｾｾ［ ft;: -ｾｾｾｾＧｾｴ､･ｾＮ r［ｮｾ［ｾＺｾｾＺｾｾｾＮｾｾＮＺｾ !',ＬｾＬ r

_""-:",,L • •ｊ､､ｊＢＧｾｃＢ ... ｶＬ｟ＮＱｾＬ ".Ii.: Cl".!.• t.,_ ....,.-"l . ""."t '"''''' '_,..ＬｾＬ｟ｾＮＬＬＱＧ ..

ｾ［ＱＱ｡ｰ e ot" t.·:·"J.8 S;2 P1.·:.1t esc c.:n t(} ＬｇﾷｮｄＮ｛ＺｴｾＡｦｽ､ RｾＺｾ Ciｦｾｲｾ 5.,r'ｾＺＧＱＧ､Ｎ , ｾｴﾷ D. ;,:. i.t

is lnts.n.d,'?f] ｴｾｨ｡ＮｴＺＮｴｲｩｅｾｙＧＺＺｾＱＱ･ｩＮｬＱ i:)e of ｾ［ｕｦｾｬｾ｜ sj ＲＨｾｊＮｊｾＨＺｾＬＺｾｽＺｬ｡ＮｰｴＺＮ［ tWtlat

the sot.1 actｩＺｾＩ n ｾｬＧｾｽｪ 8r" ｾＧｬＧｬＨＺｾｭ 1.ｾｾＺｾ Cf.:;.n,q)ar ｴＭＺｾｴＩＱｾＺ t (j ｴｾＨｩ［ＺＺ｜ＢｴｴｬｲｬｾｾｾＶ r H

·track ｴｲ･｡Ｌ､ｾ ()f ･ｖＸｲｾ lrerl't;0r irnpC)rtarlce ｾｴＬｪｾＸｾｯｲｲＸｊｾＦｴｩｯｮ

of tr1e ":T:Sr-t ｪｾｾＺ＿ ...LUI)i t ｰｾＢ eｾＺｾ S LLC5 :).c, ｴｾｨＸｬｾ｣ｾ 0t ..

r;

1｜ｾｾ ..ＧﾷｾＳｾｾ ';ii,':,.tfl ｴｬＧｾｇ

TIla): 1mun1 "i:irl•.-1t 'Dr｜ｾｾＺＩ［ｾ［ UTｅｾ［ｃＡＱＮＺｾｾ ..:r3. Ct 8:Ci st i r:-: 0f ｾＺﾷｨＮｾｾ g:i·v··:;· rt rＺｾｩＢｲＩ e ():f

ａＮｆｾｖｾ T118s8 plates ｣ｾｴｬ｢･ｦＰＡＧＨｾＰ､ into tl18 gro7,lnd to be

t t=>__{• ...-}s't'·ｦ｟ｾｉＮＢｾ _... ＢＧＱＱｾ_10.00., ..AV"c,,· ﾷｾＢｾｬＢＬｉＬＬ'::1ｾｬＧＨ［Ｍ ,,""".<, ...; ,rJ" '!" t...ｾＬＧＧＧｃＬＭＮｺＮＮＢｾ ...:'ｾｌＩ '-11•.••••, ...rp, " ! ,"ｾＮｊＮＮｩＮ l'...,""r'L ｾｾＩＬＢＬＮｾ ...).. " "',(:'"" .. ' ,:'1,,,..ｊｾ •.Ｌ｟ＬＬＮ［ＮＮＮＮｾＮｉｩ［［ＮＬＬe ｾＬＮＮＬＮＺ ..'j....; ..'r'f.·,,-,,...,/'0" ( 'r'rｲＮＢｾＢＭｾ ed__""'C

(5)

recording the ｳｬｮｾ｡ｧ･ thus produced. When sinkage has taken

place, the tao foot-olates ｾ｡ｹ be moved horizontally ｾｰ｡ｲｴＬ

the force required to ｭｾｶ･ the plates bej.ng indicated an the

horizontal dI;:tl0 1'1";(; maxirIlt..11fi value of this :for"c,? would be

record.ed. In this way, the usJ.ippagefl _{of a loa.ded} _{ｴｬＧ｡ｾｫ}

tread may be simulated.

('7) "E.ifJ.!.rg._'r!!.Q. shows, diagraJIilIlo.ti.cally) how the device

could be operated. Two operators are indicated; they would

stand on light-weight plates to which would be attached light

metallic tubes. securin[! the casing of :hej ｾ - ｭｾ｣ｨ｡ｮｩｳｭＮ Once

the latter was in place, penetration would be obtained by

turning one of the hand-wheels, then h0rizontul movement

by ｴｵｲｮｩｾｧ the otheru Automatic stops cnuld be arranged

on the scale and dial so that readings ｣ｯｵｾ､ be taken ｾｦｴ･ｲ

the device hgdbeen removed from the test location, if

de-sired.

(.g) For each t'3f.;-t with i:.be instrw\;,ent; Uu:'ee value3

ＢＧＧＧＧｵＧｬｾ"'.' ,. "-pｾｉＮﾷ O.ll,a .•-1.·.. ;;,o,odu , - . •_ - .•.' .ＢＧｩｲＬＱＧ｡ｧｾＧ •I.n. c:>'; \1..'/,It:'\ v""'.,1'';''I,.1"cu'!ＧＮｾ J..'••ﾷｉｾＮＭｲｾｲＧＧＧＧﾷ G'\· ....i···J5 (,,"", ..' , ellｾＮｶｬ､

ｭ _<:t.,ｾｘｬﾷＬＮＮＮＬｬＧＬＮＮＬＮｶﾷｾＭｊﾷ｜ ..ＺＮｾﾷＺｽﾷｏｬﾷﾷｴｾＭＭＭ［ＬＮＮＬＬＬＢＧＱＺｓ［Ｍｯ［ｾＱＧ ...,,...rl/.,.,":' ＨｔｾＧ "r'[....ｾ ..'r.r·:'l+4,...,-::·i ("::,("";"1 Ｎ［Ｚｲｵｾｩ･Ｂ

1.llＮ［ＮＮｾｊＮ , . l ... ••.•• .l a ..L •. ｾ 0 . . ., . '" a '..,b " . " _ ,｟ｾＬ 1;;, -'J. _ ｸｾ ...,.'.LJ. •'" U _ ｾ

Sl 'a,Yest 1..'1..-0

, , . ,' . . . . ·';'·l",:) -11' TIl -.. .. 'C'.:l' ｾｮﾷﾷＱ ,..,C'tot r''''ＮｾＮＧＡＢ 'T_'r'ＯｾｲＢＬ .'.\1 ,t._L-j' ·he ...--=- ")',"t'"'\{l

.At,,,, .fcc::." l,de (). ＮｦＭ［ＧＮｬｾＧ \J , ...t::.:> '" . Cl ....L'_' ...,1, " h . . . .'. I.v ..•L ...ｾｾ

to vary con3istently With S. Experimental studies have

already shewn that the dimensionless ｾ｡ｴｬＰ (Movement

Resist-ance/tleight) a:.so ｶ｡ｲｬｅＧｾＤ cons l.stently with S; Corres pondingly)

track slJ.ppage is known to vary consistently with movement

ｲ･ｳｩｾｾｴＮｳｮ｣･ ar..d so wi tIl S fOI' any gj:iTcn type of ground " 'l'hese

relations are indicated ＼［ｻｾｮ･ｲ｡ｬＱｹ in ＱｾｩｧｽＢｬｲﾧ｟ｊｾＮｴｾｵＮＺﾣＮ It is

to be noted (:1"'.t,t tb.e ｾｨ｡ｰＶ of the (H ...ｾ c:: \ Cllr"Vl.?:':; :1..3 I:Ct

V

I ..l..' _Ｎｾ

ｖｾＮＺＺＮ t 1.... ,."ov'n '1)1] """,-:=;' "',11C' I"""if }ｬｬｲＮｾ ')I"""""'-10C "",;"d' '1'1"1'=:ＮｾＮ ·,..·'1:- ...1i::.r +- ,;;.,.,. tAr''''.1'.}i'

ｾ <:; l'..,. d e ｾＮＡＮＬｾｾＬＺＺｴ " ,.). " ＧＢｾ ;, ..I!:,. ... . . , . , . t ..!. , ...Ｌ｜ＮｾＮｬ '.'ｾｾ｟ \.' 1'<'J ...C..J

be relatively easy to develop these curves for different

types of ground. There is already Qvailable some

informa-tion on the interrelainforma-tion of mcvement resist90ce and

slippage ｷｩｴｬｾ sinkage. It is understood that work on this

aspect of the ｰｲｯｾｬ･ｭ is currently in ｰｲｯｧｲ･ｳｳｾ It seems

probable that it should be possible so

:0

ｩｾｴ･ｲｲ･ｬ｡ｴ･ two

or three of these sets of relationships (shc;wn in ＵＧＱＮｧｶｔＧｾ

'1'lll':>L"\)J,. J.., c.';.I +-h·,t' ••.l; ... .;."ｾＧＧＭＧ """:")U" ,'.'C... .l....!6, ... )·'c· ｆｾｾｩｾＺＮｾＬ t'r',1 ·f-I·,·,... ;.c.: ＾ＭＧｾｮｾｯＬＭＺＺ＾ｾJll. ｾＮＧ ,tJ ..:;, t"U JO_ ...f''''+-''''''''''''l')tJ (.I.l. I..ｕｊＮＧｾＺＮＬＨＢＧｵＧｬＧｾ....1...1 .. \) be01

used ｾｯ give, directly, en indication of ｲ･ｯｶ･ｾ･ｮｴ resistance

ｾＱＧＱＨ｝ＯＮｾＮＬ co1oj ＧＭＧｲＺＬｾｏＧ･ tc 1-." ｾＧｉＢＧＧＧｅＬｲＧＫＭＧＧｮｦＢｾＧｬＧ i'\-"" If'r'O'p _"",,' te.col-L·a' p'·,r

d. . I ....,;. " ...."Ｎｾｊ _ j " ,e, ". .' 'JｾＮＬ .;,; ,'..,l' J . , : '.1<;;...1 .)ｾ ｾ l!. .. t.' .. ｾＨＮ､Ｚ｝ＧＢＮｾ '."-; , ｾ '..

any given A.F .,V. Another Int;ttf:L" wh:i.eh y.:l11h[nre t,) be

il''l-vestigated, if only in a general way for immediate use, is

the effect L"I)()n ｳｩｮｫｂＬｧｅｾ of' the ;::·cale d1ffpJ'enc8 between the

proposed foot-r1atso ｾｾ the treads of actual A.F.Vs.

(9). ａ､ｾｬｾｴ･､ｬｹＡ before ｳｕｾｨ a ､･ｾｩ｣･ as 1s ｳｵｾｧ･ｾｴ･､

coulo. be 1).5('(;111 actlon. ｣｡ｔＮﾷ･ｦＧ｜ｾＮ｟ｌ exp,,?r:.LIT.en·cal (';cr:e.lat.J C1S

would havE;' to be est:atlish8(j behveeil i t.e.; T'r,sults find the

performance of individual vehicles over d1.fferent typBS

of ground. This work should not he very invclved or

(6)

ｾＬ 4 ..

of bog-stick some SUCil correlation would also be ･ｳｳｇｮｾｪＦｬＮ

'J'',-''''r''"' ":C.· ＬＭｽＮＬＬｾＮＬ ':"j , ...tt_1C)y. Ｌﾷ［ＮＮＮｾｃｬＮＬｴﾷｩＬＭﾷｮﾷｾｨＬﾷｴﾷ r,':' r'-'-'- c,h,."!,'r'

• l,j, '_- \-._ ...:...; l...l. ... ..:.. .A..L ..,$ """ __ vu(; ,,"',l.... ,J._ ...J:.J. ...'-..4. .•" ,•• __ , ..l ....Ｌｾｊ ...ＮｬＮｊＧＭｉｾＬ ..ｾ

'1-ＺＱＱＨｾ c1Q'qiC G neE. 6..ｾＮｾｴｾｖＨＩｲｮＺｾ I1 f ＬｾＩ l' t t s ［ｾＩｰ･ 1.' ,}ｾ j_OilｾｔｩＧｾＡＮｾｾＬＬｦｾ CＬＮｾｾ onlf'

fLr::v-ing dr:iwfLr::v-ings ｾｨｯｷ the ｦｾＡﾷｳｾ desigrl ·to ｴｾｾ｣ｾｯｄｩｬ［ｾｬｴｴ･､ ·to ｰ｡ｰ･ｲｾ

If thE; ｢｣ｾｳｩ｣Ｇ idea i;; found to be ｓｃｕｲｬ､ｾ .1.11:3 u3a':1:.(', Ｚｾｴ if:

almo3 t ･Ｈｾｲｴ｛ｬ｟ｩ nth;;t a sｴｄｾｌＮｌｅ［ r methol:: \);' OD',::1:'0.thlf" C:<li)

p·,r", ,-.... " _ .Lo!t'],• .AG,•.__!'I'!1" .:-- "" ,.::L. ) ' ｾｊＮＮＮＮ ..." ....c,1/'.1..., ,..' '., (ｾ «pi 1 " ..

{il""l) ..r ....\.. ｔｉﾷｾＢＨＢﾷＮｬＭ ...ｾＧＮＬＮｱｾｾｦＧ 1'£'" r .. .,,-' ...ﾷｾﾷﾷﾷＬＮﾷＢＢＧＭｬＧﾷﾷＭＬＨﾷ［｡Ｎ［ｪＧｾ｜ＧＬＨＢＧｴＩｮＨＧＬＧｾｮ ...·4.",. ｾＧＧＧｉｮＫ

ｾ... \.., ..L I., ｟ｊＬｾＮｊＮｾＺＧｾｾ｣ＮＺｬｃＨｾＮＬＮｌ［ .... .te· t ...lI'.j:;,.. iC(....:. i,lＺＢ｟ｴＮＺｾ .:.l...i ｾＢＧ .. ＮｩＬＬＭＭＭＧｊＢ｟ＧｾＢＺ｜ＮＮｬ｟｜［｟ｊＬ vJ ... c" v

th:Ls ｮＨＩｴｅＮｾ aDd triG C1C;Cf.::.n:rpanyir.g dravd.ngs are !:)t;ir:c,:', (::irc'ulated

: 0r 6:i s eLtS Sj_ ()1'J Or1.1,:1'¥ ｲｉＧｾｮ･ｬＩｲｩｾ［Ｎｩ c id€a aIip(-;ＬｾｬｊｾｾＺ t () ｢ｾＺｾ［ＧｬＯ 0ｊｾｉ t Ｑﾷ［Ｎｾｾｦ

ｾｾｾＧｬｾＧ

ＺＮｾｾ［ｾｬ

,)

ｾ

t

ｾＺｾｾＱＺｾ

JP

ｾｾｾｾＱＺｾ

r

Ｚ［ｾ｝ＮｾｾＧｬｐＧｾＬｾｾｾｪｾ｣ｬｾｪＧＬｾ

i;{

e

ｾＺｾｾｶｾ

c

:;}j

ｾ｜Ｇｩｾ｣［［Ｚ｝ｾＮｾＺ［ｾＺｾ

ｾｾｾ

1-ＧＢ［ｎｾ Ii. rl'E; I.e o:rne C OT.f'-:.-.'f:r1t.s BJ:d ｾＳｾｬｧ ge::ｾＬ［ t:i.(':[13 ＧｊＮｾ l::gｈＮＺｾｩＺＧｾ :Lr: g ';:,,11 e !JIJc'

ri

O.._=:Ｈｾ､

ｾｾ 2vi!:.C iJ.rl(t ＮｾｾＧＨｾＺ i.1'uｦｾ st13 ｾ］ YiD,t 't:ｽｬｾｾ )'" l)IS ｾｾ t1rJlD:1.t t.Hd. ｲｾＧｲｾ t1［［ＧｾｾＮ［ (':1.r' :_;'-'1\? Dt

P()ｾＳ ;:'1b1Ｈｾ c'pp ':)j't,;; ,j:'l.t;,- , J0" ll1 T(I ! ＬｾｾＺｾＧｂｾｽＧＨＬｉｾＢＬｉ｜Ｇ］ｲＬｇＬＢＳｾＳＺＮｾｖｉｉｑＴＰＺｊ｟ＮｾｉｘＮＴＵｾ iLO 1.0. '\} \ I.' ..ｾ .... FLP/PB

(7)

(8)

(9)

(10)

( , .a) " ". \. C' -' ｎｾｆｾｃｾ I:ondon Offi_ce C "' hI.:".}!.)ｱＬｾ IJl'")D.ri("Jrl 13r:)_ tI. s'.)J ＺｾｩｵＮ､ C:.rcssj_Ilg Ｈ［ＨＩｉｮＡｬｾＺﾷＮﾷｴｴ･ＨｾＨ［ｾｾＮＺ｜ｄｾｖｾｓＮａｾｌｩＧ｢ｲｾｬｲｹＬ O"ttawa ｄＰＰｾｒＮ Lit1rary, ｯｴｴ｡Ｇｾｻ｡ｉＩ･ﾷｓｾｾｾＮ (Vi), ｏｴｴｦｾｖｬＺｳＮ })ｾ :iV-I ...(l • ..l;.:p•IJ .Dtt ｡ｾｾｎ C1

f.:

ｾＮｍｾｾｊＮＺﾷＬｾＱＮｬｲｉＮ［｣ｉｬｾｾｾＲＱＱ r:ｾｩＩ

*

C :'ｾＺＬ 'rIi,'0Qol " . . S (. I) .,ｖｾＧｾＬＮＮｾ f"n ;r ...j •. J. ｾ［ l ｾＮ r' rl"": T) J""I:' ,;...;;:.ｾＮ ;,-ｄｾｾ＿ａｾｃｾｾｾｊｄＮｲ C:fice DIfG-ＧＱＱｾｩ .,Ifｾ !=:, '.Ｈｪｾｃｾ • ,- ｾｾ｜Ｑ tl ( )ｾｲ

;::

3 ﾣ｟ＡＭｾｾｾＢｾＬＲＮｾｾＮｾＳＬｾｧｅＮｬｾＮｾ［ＺＡｽＲｾｷｾＹ［ｲｾ［ (ｾ｝ ) ｾｃＰｭ｢ｩｾｬ･､ Cpera"t1,ons Beact ｔｲｾ｡ｦＱｾｩ｣｡Ｌ｢ｾＱｾＮｴｹｃｾ｣｛ｽｲｮｬｴｴｬＰ｝Ｈｾ (I;to ｴＺｯｬｾｲＩﾷｾ［ｾＮｬｲ､･｜ｬｴｩｲｬｴＬｴＳｾｓＢ YalJines ｾ］ｨ｡ｩｲｭ｡ｮＬＩ (2) :

ｾ［ｾ［ｾｾｾｾｩｾ［ｾｾｬｾｾ｡ｾｾｾｬｾｾｾｴＨｾｾｾｖｾｾｾｾｮｾｾｾｄ

Major CD S. MackeGzle) ＮａｩｬＳｴＮｾｾｴｾｉｾ｜ＬＮｅｴＡｾ｝ｉｊＺｊＮＺＱＮＺｴｴ｡ＱＮｾｙｉｾＮｴＮｳｳＺｉ｣ｬＯｴ (;?)

(11)

r c:: r

-*

O.C.O. Detroit (2)

*

B.A.S. (Attention Brigadier Ross) (3)

Canadian ｾｩｬｬｴ｡ｲｹ

.

ａｴｴ｡｣ｨ･ｾ _. Australia

Proposed field soil testing device

NRC Publications Archive

Archives des publications du CNRC

A

rJ

:e

a

,1

tr.

,..

t:

C

:;i

,;

r;

V

:0

ｾｾｾＧｬｾＧ

ＺＮｾｾ ［ｾｬ

ｾ

ｾＺｾｾＱＺ ｾ

ｾｾ ｾｾ ＱＺｾ

Ｚ［ｾ｝Ｎ ｾｾＧｬ ｐＧｾＬｾ ｾ ｾ ｪｾ｣ ｬｾｪＧＬｾ

i;{

ｾＺｾ ｾ ｶｾ

c