ENGINEERS 930 W. SUNSET BOULEVARO LOS … · · 2007-08-11... Supplement to Foundation...
Transcript of ENGINEERS 930 W. SUNSET BOULEVARO LOS … · · 2007-08-11... Supplement to Foundation...
DONALD R . WARREN CO .ENGINEERS
930 W. SUNSET BOULEVARO
LOS ANGELES 12 . CALIFORNI A
MADISON 6 .OtO1
/',FGLj 248'''
RECEIVED
FEB 2 6 1965
FACILITIES
February 2 .1 . 1.46,3F 64-10..4
RoclcetdyneFacilities EngineeringDepartment 053 - ?one 9663,3 Canoga AvenueCanoga P©rc, California
Attention : Mr . 'i, . A . Todd,, Purchazing
Subject : Supplement to Foundation investigationBulcc LOX Storage TankDelta AreaFropoced Field LaboratorySanta Susane , California
Gentlemen :
Pursuant to our letter of February 12, 1965, regarding theuse of compacted fill for support of the prop.')sed L 40Xstorage tank, we have made studies of the possibility ofdifferential settlement in the till soils .
it is our understanding that the dead load of the tankstructure is a total of 200 , 000 pounds and the load of itscontents is 1,000 ,000 pounds , all of which will be supportedon a concrete footing which is continuous around the perimeterof the tank, and which has an inside diameter of 9-1/2 feetand an outside diameter of about 30 feet . The southerlyportion of the footing will be supported on bedrock or VcrfShallow fill . T1 northerly porti-.n of the rooting will besupported on compacted fill which 13 about 14 feet deep a tthe deepest point .
Dividing the total static load of the tan4 and 1t3 contentsbr the area of the footing, It :.as determined that the structureimposes a pressure on the soil on the or-JEr of 2,0X) pounds persquare foot , dl regarding the weight of the footing . Computa-tions for ultimate settlement zero made u3 ing this load andaszuming a I percent consolidation curve which i.s coffin forcompacted f1113 of a granular nature and assuming a aoi1 whichwelgna 125 "undo per cubic foots . These computations indicatethat footings supported on about 12 feet of cocted o11 may
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nockctt~l r.~ - F, F ' i'vf, ',r
'a is '-
PucU.J i l: iC:~ rl- P 4-~- it
its: tx eCL'c.J t. settle tn t;,r.(, Qrior of 0 .3 t'j v .=;` i ..3o::ers .Due to t::as iS°LiL-nith xitiy Xrsiuitsr nature of the focal v` 's
`xpa&a.ed to b' u.ed for fill, aettle nw:tts due times
1,.d of tm-i stz'u>'cure can bt ex{ ected `. . our w; i. g,Construction . s ttlemerstA due to tt.,E Font nta of t:*3 to t34
can be expect d tJ occur soon after la ding .
Ho settl`Lment 1.z c. ected in Footings supported on ~JE'~ :u%ei .
Oiff er€is, iakl rsettl mentz under the qm :ozed ~% lr:n ,;t u_YosL-ing the tsn4 on compacted fill can to x.inimiz Ad by )v vr-&xca vattn tie Lxedroc't ar a zo th i5t tit- entire footing n eaa uniform depth of fill i cr support .
The above 1~3 4, it -i ven by c+_?~13r_tir: : t M.r .;, rptenicn •-f ac+ litie s Yngsneering and tIould i*~:Y,; i.dti
e1ar1ticatlon of .ur previous oorresp reden~;c : :t ::viiioompaate4 fill foundations .
Yours very truly ,
Reviewed
JAR : ge- Raakc td~ras e
Fe:oi lit iea :. ngine erirz
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DONALI) R . WAFRF'3d CO .
ORIGINAL S!GNED BY
JACK A . RUSSELL
CALIF . REG . NO . 14352
ORIGINAL SIGNED BYC. F. COLLINS
CALIF. REG. No. 12970
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