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HomeMy WebLinkAboutSubsoil Study for Foundation Design 11.20.2018æ0 Cü¡*ty RÐM r5{ Qaøøa SSirBr" COgTæl PttrFs t970)g¿S7ggg Fax: {9t0} 9{$A45. Email Sgþrnmori@irr.reru*a wrr : : : : a ': :., Ì:l ¡- I :: t,. L !,t, '. a tl I Oah Locati¡ra Ðsr:t¡# fi€}, hã. Cdrr*Sattn0c.Fert Cæqs. Gþ*sñcd effiF, Surr#?gl Cüøf. Cesh sr¡ffi0rl-sfI¡IlT FIOR FlOUNDÄfi OF¡ DUSICN PROP&SED regTDEilCÉ LOT SS m(}nßrurlcE 3IO R¡VEN, BAIIII( LAhfE GANFffi LS COT}íTTY, COLON,ADO PROJËCT rrfû. t&?{så NOVËfllBßR 20. iott FREPAÊII] FltÍr RYJIN¡ A!YT} JESSICA KLII*I8 IéT WESTBATIÍH R,OAD GLEntrr'fi)D SPRINGS. COtdlR.A,IX) t tó0 I fllgtr¡fhnh*.*æe*gü ..........- | , SITE CONDITI0NS. ........ 2 - TABLE OT CO:VTENTS PTJRFOSË AND SCOÍ¡E OF STUDY ..,............- | " PROFOS ËÐ C'ON STR UCTIO}¡ FIELD EXPLORATION l SUBSIJRF/\CE CCINDII-IOT.ÉS .........- I - FC}T JNDATION BEÂRI:\JO COND¡TIONS Fl"f,oR SLA-8S -4. ...,- 6. FICURE I . LÔCÂTION ÛË EXFLORATORY BORTI-¡GS FIGIJRE 2 - I-OCS OF ÊXPLORATORY BOR,IT\iGS FIüI¡REs I AND 4. CRA,DATION TËST RESULTS TÂBLË l- SIiI'IMARY Ot LAËORT1TORY TEST RESLTLTS ¡l'P+lû.dlÉtAn i:i,t:¡;:r.f Ìl{r 'ïtl ,'.{l*fi t I I It PL:RPOSE AI{D SC{'P}: OF'STI.IDI Thts rcTrrt flresfitlr ¡hr: rtsults r-rf':r rub;oil rrud¡'trrr a Froprrsctl rr:srlotçc ttr þr'krc¡trd rrn [-ot It-{. lrnnhrldgc, iltl Rtt'cr B:rnk l-sne. (i¡rtìclti ('uri¡¡¡¡, Cçlçr¿du. Thc pm.¡æt rire rs clìo$'Ír orr FiSurc L The Pur¡Krsc ¡rf ¡hc stutJr' rças lo dcvsktp rec{}mmendt¡lons tirr thc tirgn{atitrn dtnlgn The sturlv u'¡ts conductgl in ¡ect¡ntance wrth cur ¿S¡cgncnt lirr $srtechnical enginecnne ¡cl'\tL:(.s lo fl1* :rnij Jtrs-¡ica Klunth d¡lcrl \orcrnbrr 9. :tll.ti. llepwrrrth-P¡s.l¡k (ictrtcr:tr¡rlr:tl ¡¡¡1tç' I l-P.Kunrar) pm'lourlr clndur,..U gertcchnical enginccnng studiet li¡r thc subtlir.ision rJcvr"'loprìlc¡rt ¿¡rd prescnter! the lintl ngs ¡ n rqxrts dalcrj C)ctobrr :q. I ql) ? snd Fehn¡¡rn I I . lQqE. Jub No. lq7 .11?. .\ ficld e rpltrraliott Frlgriln contlt¡¡¡1g ol'crplcralrrly bttnnËs rvås conducterl trr {rhlf¡ut infirrm¡rti¡rn rln thc subsr¡llilcr'r:tl¡dirrtxr.s. Samplt¡s of the suhçorlr ar¡tl lrtrlrtrh übt¡lined dunng thc ficld c.tplriralttrtì $¡¡rÈ lcsted in tlre lotxrrotrrrt trr dctcÍTntnc thrir elassific¡tron nnrl other cngintxring chffactert.çtlcs I hc rcstrltr ul'tltc freltl cspletr¡tion a*d k¡har¡¡lcr1 trarlr¡g werc ¡ntlrzcri to tlcvctolr tt:c(r¡nmeatl:rtians tbr found¡tmtì t-v.pc:. duïthr ort¡ ¿lltrrrahtc prcssurcs lìrr tltc ¡rnrprrrwtl huilding t'oundntion. I hrs rLlÌrn \unrm&nzcs the data ohtarned elunltg thrs stirtlr und prcscrrlç rrur cÕnglu*,,rrts. dtti¡fr rgcdrmm€nd¡ti{rns antl rrllter gcrrlcr.lutrr,'al cupinecnng cortsttlertl¡rtns lrascrJ un the progrscd cflnÍtrucltr'rn *ntl tlrt: subsurf¡¡cc conclitrons eneor¡ntercd PRO POSf D CO:.* STR t i(-f t(ll Í ltc ¡rrÛ¡xr:ctJ eçnsÌruel¡on on !he lût t\'¡$ \.'{,t}c(T!tual ¡lt tl¡c [inrc {}f rtur str¡rlY ln gcltural. thc rcside¡tce tvill hc a (ìnc and lrvo-:lurv Jlructurc r¡'i¡h I rvalk6ul 11¡1.c¡ lcycl ¡nd lr-¡c.¡rttrl ¡n lhc ¿re¡ {ìf lhc c.t¡thr¡;¡¡1;1 trr-rn$8,s sh¡t*n on Figurc I (ilou¡ld llt¡prs cculd l-.e srructural ahrr,e ç¡¿rr'lspacc t¡r sl¡b.on-gradc. (iradtng firr lhe rlru{lurü r$ ¡L(sumLyltrr hc rcl¡¡trrel-r ¡¡r¡nsrr tr.ith cut dcpths heßrcen ¡lh¡rul { h, l{l ti'ct. \\re assunte rcl¡¡t¡vel_r'lrght fourxl¿tron ir¡sditrpr. tl,prcal ¡rl'tlre f)rrtlhr\('d ll pc rrl c(rniilrucl¡rltl. \\'hc¡r hurlrlllrl h¡r.:rtirrn. ¡rading ¡nd lo*ding ¡l¡tirr¡rurtro¡r lrarc htrr devel.-pd. *'e should hc rìrll!li{jtt lo n:-evalu¿rle lhc rctrflilìrlrcrrrt¡rtrrrn,, prcscnttd ¡n th¡s reFrn H-P ¡ XLlt{A.f ì stTE CONITIT|OSS Thc ktl rres r'rtìlnt ilt llu trnrc ol çr¡r stud)' Tlrc uitc to¡xrgruph¡'çtrr¡sislr ot'!u'o rclatircll'lìat hcnehes alxrul l{ to r} feet rlifferæcc in clsr.atir}n with c mruleralslv steep int*n'tning slo¡x. Thc r¡ppcr. soulhr¡.estern nrcå cnc$mp¡$scs nrrìrt of thc huildrng cn\'clopc anrl is vegEtåted moinly *'ilh sparsc gr*ss and u'ceds. The l$çcr sc¡ ir vegetalwJ rvith lush gruss lnrJ is grnt'r'ully kn(tn'¡t Irr h¿rlc shnllorr grnunrhtnter clunrtg trngalr(ìn täs{ìtt. llte R**nng tarlt Rivcr ¡s ühoul l5{} fcct r.¡rst r-rl' tlui ltrt u¡rd ir¡çu¡nl l 5 to l5 lcr:l lu¡r tr tltan tltc lnl . Scatltrr¡l crthhkx und sntall txruldcrs ore ex¡xrssd sl lhc surl'ace of'tltc up¡xr ler'cl. st, BsnrHl(:E Fo'l't:\'l'tAl. Bc'dnrck ol'thc Pwrns¡*lvaniun ugc Eaglc \¡¡¡llcl' Evaprtr¡i¡ri unrJr¡lrr,: tllc lnrnbnrl$c dcv¡:lotrtttr:ttt 'l lraic rne ks ¡lr€ ü ç&Tueor:e of gwrrrfbrnus shnlc. lìnr.'-grnrnsl san¡lstone and siltstnnc rrith some m*ssirs txts ot'g,vpsurn a¡¡d lrrnr-:ltxtc lÌ¡crc is a ptrssihrlrl¡'llrat nl$slr\'c g\'¡tsunì dc¡xrsttr ncs{rcrûted rvi¡h the [.oglc Vallel'[.vl¡xrritc u*derlic porlions ol't]rc lct. Dissrlutton r-rt'thc g,-rTrsu¡tì utrr{Er L-cftá¡rn eonriifionr cån c$u. c stnkholcr to devel*p ¡rnti can prcxlur;c arens of htc¿lierd subxide'nec. During prcviou-r s¡utlir': lirr the :'ubtliçision dc"-elop¡¡rt'nt. scvr¡al s¡nklrolcs werc ohsen'ed sc¡Íered thrrrughout the lronhridËe ðrË¡1. Thesc s¡nkholcs üpÍleår simll¡rr lu qrthtr: ¡t:r.¡t:rðl!rl ç'rtlt lltt'Eaglc \¡nllc,i' Ert¡xrrrlr tn årrç.ti ¡rl'lhe l{tlnnng ttrrl Rtçcr vsllev. Thr clo:icst mapputl sinhlrole ¡s lucaltd bcloç tlrc ir¡trT:irstion ert'Rivtr Bunk Lån* un¿l River flcnd \l'¡r' alraut l.rX}fl tþ€t ¡o the nonh ltlrich t'as re¡nediatcd bv sr¡b-excavntion elotvn to trrxh¡'ch attrl placcrrìcnl {rf strulrunrl ñll. Sinkhulc's $'rrl' ¡trll ubst:n etl in thc tttttttultatg art::i pl lhc suhlr.çt lul. \o ct'ttlc¡tcc (ìt's¿t\ rttc5 \r¿¡s encountered rn the subsurt'ace matenals: hrrtçever. thr erploratnn* çr¡n*. rtere relstirclr' ¡þ5ll1r*'. l¡-rr lt¡und*ltort rlcsr¡pr txllv Bartd (xt our ¡rrctrrril hlrl*lurigc rrl tltc suh¡ir¡r{nce c¡rn<tit¡trns at th€ site. i¡ cannot bc sa¡tl for senain th¡l sinkh*ler t¡ll not devckrp. 'llrc nsk uf iulurc grnulrti subs¡¡lrltcc r"rh l¡ìt 85 thrrrughout tltc çcn'icc lrl'e ¡rf thc pnr¡xrscd residcncc. in our {rplnirìtl. ts lurr'; hcq'gr,ÊT. lhe r,trnËt shcul¿l trc matJc ail'itrtr ul'lhr'fhrlt'ntr¡rl llrr:ltrkhrtlc rlctelopment. lf funhcr invesligltinn nf poslrhle cn'ities rn lhe hedrock bdcs'thc site is desrrrtl. rvt: rltrnt¡hl t\: ttrnt¡ùlt'tl i ,, :'- ! ';,. '*. i { .'i'H-PY{t}*{ÂF I T T i Tt r t I t I r t l T t ì l-t l:t_.t' f, x Pt oRAI'loN -Il¡c ticltl cxplorutir,rn lirr the pr(l,fer.t tl'*r ccndueled un ltlovr:¡nbrr 13.1018. Five crplorulu¡- borinp rvere drilled ¡rt the locltions ¡hortr rrn Fi¡urc I to cçrluatc thc subsurfacc conditicns. llc honngs n'erc ndva¡rcad wrth {-rnch diamcter c$ntinuixrs tìrght augcns pnn'ered bv $ trusk- miluntcd Cil{E--l5B dnll rig. Thc btrringr **ere k'3grtl b¡'u rt¡prr*rntstir'c ul'll-P'Kuma¡ Sarnptes of the suhs¿rils rrere tahst with I I i rnch and l-rnch l.D. :'-[rxrn samplers^ Thc samplcrs Itcrc rlrivc¡¡ ln!Õ the substr¡fs *t vadour dcpthr rçtth hlorv.s fronl o l4ll ¡xrunrl hammc¡ fnlhng.ltt inche¡. This tr"st ls similu to thc standard penstr¿rtiort tc'st elt'scribcrl bl' ¡\STM Mdhcrrl D-l5E{r. 'lhe Jxnetrnltrin resrslJÌ¡rcc r,¡rluc-s ¡rc ûn incltc¿trnn ¡rf tlre rclalivc elensitv or üûnsrslcncy of the substril: $rd h*rdnss; çl'thc trctlnx;[. Dcpthr at rvhich tltc srutrptr's g'crc lalst and thc flenetÞtr$n rcsi¡t¡ncc r,sluËs are sho*n on thc l-*¡rs of Exploratcrv Borings. Figure l. The :í¿{ntF}L'J \rcT(: rülunts.l ttr r}ur l¡ltx}rdlcry tirr fc\'¡ctr h¡' thc pn!Étl engrnc{-r nfid ¡cslrn$- 5 L;EStrRF'tCE CO¡ÍDÍT¡O¡{S Graphrc hrgt of the suhsurface conditions enc¡runtered al thc sitc ¿re shcu'n on Figure l. 'fhc sçþ5otls. trcltr* ¿trrrut I to li: ti'et of topstil, çtlnstst ttf Jl'i let 5 lc'cl al'srlt¡'clr-V'e¡'rnntl n¡rrl sandl'silt and clay rn Bnrinpr l-.1 cvc¡lFng dersc. silt¡* sand¡* ¡ravel and crrtrblcs lvith pnrtrutrlc tnr¡lrjcrs- ¡lçl1r\r' tlçth*r of abnut U to I 2 fcc¡ rn BÕnngq l -3. hanl clal.stonc hcdrock r*as c¡tçnuntrrcd l)rrlling rn tlrc sçr{rrsc grnnular sorls u'tlh oug,rr slurpment rvss dtfïicult elue to thc cchblcr and tx¡uldcrs and drilling rcfur¿rl \rs:. €nçrìuntrretl in the rJcprsrt at Bt¡n¡tps.l snd 5 Latroratory lr"st¡ng ¡rerfcrrnrecl (Ìn rðmfiles ¡rhtained trom thc troringr inclutled nrtural mnisturc conlrall u¡d ¡fadatron ¡¡r¡rlt'scs Rstults of Sr*dutron anal¡:rt ¡r*rfirrnrçtl un s"rn¡lll tl:rrnctt:r drlrc sanrples {mrnüs l'': inch frsctionl *f the cfl;¡rst' granular suhsoils are s}¡orr'n trn Figures 3 cnd ,{. Thc labrrr¿l$r! lr.¡trnË is sumllt¡n¿ctl rn lt¡blc I Frec rr'ctcr Ìr'ås encountcrod ¡t dcpths of ? to t{ feet in Banngs I snd I at thc timc of tlnlling. Thc upylu'r :oilr rrcrnu ;lr¡úrily- t¡lotsl kì n'lrltst t,r^t H"P e KUtsl.A'Rt I tt :t: ', fr:: ì:'. ¡ ¡ i'¡ ..t- Fot. :\ tlA'rl0N BE^Rtf*U (:olliDlTlo¡is Ilre s¡rils rncrrulllcrcrJ ilcross thtr burldrng {rrea arc vsriablc tn l}'Pc. ctepth lnd engtnccnng flrupcttrcr. Ilrc scnd. 'lt r¡nd cl:r1'xrils h¡rrs vnn*hle sornprcrsrtrtlttr- and low bttnng cspùc¡t\ m¡l ctr gcn*all¡"unsu¡t¡blc llrr sup¡xrn of buildrng lrrnds. Thc t¡ndsrlyrng sih¡'santly Srutcl nnd r""r¡bhlc sa¡ls have l(ìrr'c{'trnprcssihilit¡ antl rnerderalc trcunng capsclt}'¡nd urc stltt*blc f*r support trl'shtl¡rw sprcael frxrtings $'tth liìrv çettlßfitrtl ptttcnlltl. Whcrc l*nd, stlty md cl¡¡v scils src cnc¡luntsrcrJ. sutr-crc¡r,ütlon antt nplaccmcrrt u'¡lh slructursl frll oppcar: l'rjt¡siblc to reestnbfish dr=rgnherrnngt*"*|-@cltvrtllikclyri;etlunnglm8ütion5(ä5{ìnrrlrrchijr¡uld impuct liruttrl¿rttErn clcsvittl1¡ll$ lll¡ule a1 the l$$'g1 lct'cl of thc sitc lntl rcr¡utre tcmp{lr¡r'v t!c**nre'ng. f)uc t¡ thc ¡Ìltentio¡ hrgh groundrv¡ltcr level. r,rarvls¡cce shuukl b,c aro¡dÈd ãt the I*n rr lcr.cl rtf the sitc. I,trr:to-pllcs thut ertcrtrl nllrr tredrod¡ çqrultl ålso hc u*rt at tht ltrr¡'er lcvcl ¡rf thc sitr und rna¡ be a practical chrr¡ç-c to suFlrîfl rhc tiì¡nelntion il'thc litrlrng erc¡r'atitrn eån¡ìrÌt he dcnv¡l(rtrl l¡rr plaeenrent ol'stnldtur¡l fill for supprtn trf slti¡llotï sprwtl t'i'xrttngt. llEs tG:\ R U.( :O:}l :\l E ¡iDATl ()\ s FOt;\ t)r\Tl0NS (-r¡n¡rclcring llre subrurfsce condititrnr ç¡¡r,:ountere¡l in ths cxplttratrrry trorin¡n and the nsture (tl' the pr*¡x,sod c{}nÍtn¡!-trün. \r'e recomtnend thr: burhhng bc fbun¡Jttl rtith spread f{x}tln!Þ bernng c¡r the n:rtural (:(,¡rrsÊ granular s{lils rx ttrmp*ctd slruerural lill ¡fter rerncl'alt}f thc compressthle r¡nd. sitt antl cla¡ srrils. I'hc .lesign n¡1{ ç¡¡¡rttuctlr}n Lït(Ttu ¡rrr:rentetl hdon' slroutd bc flbren'srl ltrr $ spreld fircting luultd*l ¡t'rn s\'lilsTll I I þ¡xrttng! ¡.rlocrd trn llrs u¡trl¡sturtred nslural granular $rll: or trn complcterl $tru!.tur$l till choulrJ trr tl,.srgulcd íor ¡n ¡tlo*'sblc hcanng prrs:{ur(: ol'3.5{}tl psl' lìased 1.¡n €.trl\*¡c¡lce. wc sxpc{l Srrtlle¡rtcnt of ftrullogr tlcrrgnal antl elrltsln¡ctctl ¡.r rltqcucced in this lit-cltrlll rç¡ll lrc ¡rbout I tnc]¡ cr less' ll The lirotrngs should her,c ¡, tnlillrtrrütì rvidth trl'l{.t rnchct fñr ü(Ìntlnu0t¡s $'alls and I Îþer lìrr isttlattd P*tls jl Irlr:nûr fcxrtrng-* ¡ntl ltx¡t¡ngs þenea¡h unhstr.rl ¡rrels shoultl hr ¡rrrrl'rdcd tr"ith irdequate 5{}tlLÌìtcr atxrrs their hc¡rn¡tg clevot'itrn t*r ltott ¡rrölecttcrn- Pl¡lccmcnl i ,..,, I !.., '¡. . i,i1ÌiÞt-Pr f{¡f¡{fiç .tl 5) fi) -5- of founilrtlrrn5 ¡tt lcast .1rr inulrr¡ þsi1r\r' e[lc¡1trr Ër¡]tlc is t-rpcall¡- uscxl tn th¡¡ afcil. ("ontinuous lirr¡nd:rtrûn rv¿rllr sh¡ruhl he re¡rrlirrccd tt-rp and lrt¡llom tÖ span ltttal s¡rrrnralicr ruçh ¡lr hr acsumintl ¡rn ult{uJìÍX.rtttl lcngth çl'at lecsl ll lget' Frrulrtlalitttt rv¡lls ü{tlrlg å¡s fÈtllnln¡: slruülurcs shpuld alstr lrc tlesi¡nctl ttr rc<isl lateral e¿ullr pr*çuru.s &ï dtssuslcd in thc "Futt¡lr1ðtlûn m{ Rctulntng Wslls' rçclioû rrf this RTxtrt Thr top*'rl, scrñ rvet sptls sn{ l¡rçse (}f di$ufH *oils shrultl 6t ¡smtìved etxt lhê lixrrrng hearing lc\cl erts'ndtr,t duu'n lrr thf relutltcly densc nütut'¡|l grnnulnr:oils' Tþu cX¡r6scd sçils ¡¡t ftxrtrng arca shuuld thcn be mçtslc¡tc¡l ônd t(ltnfiålt:tcd' lf $ater s€¡.p¡l¡,c ts cncountË1url, tlrc tocting ¡nuas sltruhl hc clcuttcrùl heforc Llìncretc plncc,nrcnt Strurtur¿l lìll should cansist ol'¡l rclatit'elr g'cll grodccl r{nrl rnd ¡far cl such ¡s n cd btìsr' t*oñpacttrd tn ¡l le¡rçt 9ßoâ ut slånd¡nl Pructtrr elensitl,snd s\tcfidcd lntcrnll¡ hcycltl the li}(rtlllS c{ges a dist¡rnut: elunl trr at lc¡¡l lhc tlcpth ot'lill belcrr' the lìxrtrn¡l A reprcsr,rtlsltvc nf fhc gttrlcchnicul tngitrcr:r shoultl obs;1't: all lirrrting (:.rcg\ åliç¡ns prior til ù't¡Ìcrere pl:rccrncnt t1r el¿luelL' hr*nng rttntl¡¡irt¡tr FOl.. N l]¡\TIOT A¡* D R ET.'\ n( lNfi WA l'¡'-S Frru¡xl¡rl¡n¡t rvnlls tnd rclál¡nlng strusturcs *'hlch se laterrth' sup¡xtrtcd Büd tnn be c'tpcetctl t¡ undr-rgo onl¡, I .sli¡ùr ü¡nrtunl irf dc{ìrctrt'tr sltoultl br rlcsrgretl ftrr a latlïal cnrth pres$urc compurcd .n tlrc hasrs ol'grr cqurr.alen¡ tlurd unir u¡r'i!ùrt ol'rl leatt 5{l ¡rcf fçr t}ackiìll consilttttg ol'tlrc on.ri¡e ¡Ð-rurutar vr¡ls. Cantilcr.crerl rctainin¡l slructurer $.hrclt ¡lrr'cepûrütc lrt'llt thc huiklfirg ¡lld can he cr¡".*crcd tr¡ iletlcut :utTcre*tlv t$ moblll:c rhe full ¡t(rtlçc earlh prcrsutc errtlrlll¡{ìn shrru¡l 6e.lesrgntd lçr a l¡rrerûl c¡rth Frc-\srrre crìmpu¡ed t}lt the b*sir $l ntl ct¡utValent llu*l unrr *.r.iglrt ol *t k:asr Jr) pcf tçr brruhlill consr$lrng ol rhe tln'ritç g,t'rtnulur 56i15' s¡¡:l'fill ¡¡houlcl t¡r¡l çctll¡l¡n t)fËl¿lsllcs. tichns or rtrcL larger thar¡ rhqrut fi ¡¡tches' .{ll t¡und¡ticn ìrnrl rct$r1rn¡t struçturr-\ .lxrukl hc dcu¡tntrl firr appnrpnnte hvdrrrstatt¡': anel surcharge ¡ìres!.urg5 such lrr ;ldlaccnt lirutrrr¡s. traffrc. rdrRstructt(-rn motcnals antl equiptntrtt f he fìrcqisur".i rr.(.{}nul}r'*dç{ ¿þrr.t: assume tlraintrtt çt¡¡lrfrlrons hclrlll.l tlr¡: $'ullr und ¡¡ ltorll¡rnl¡l hssk li ll surl-scc. I'hc lrur ldup rrf' rr utt:r hcl¡lrrtl a rr'lll rlr d11 up\r'ú¡¡ 5lrrpt ll{ hack till :t¡rl¿ce n I ll I +r' i f.' i¡' : 1';'-¡'H P,¡{.JfvtAR -ó- intre¡¡sc thc l¿¡tcral Fre$sure rmptrstrl ou I lbu¡r¡,lslran rvnll or retnining strut{urc. An undcrtlrn¡n should hc pnrvitlarl to prct,crrt h¡'rlrosratic Frcsst¡rc builtlup br;hlnd wnlls. B¿rüktill çhuuld be pl*ccd in unili'rm lifìs ¿nd côntp{¡cted lo al le:u¡t ÇO9a ttl'thc lllsslrl¡un st¿nd¡grl Pltrflrrr tlcnsrt¡,årl ncor optimum moistun: çonlcnl. Bsckfill phccd tn pÐ\'tmült m(l xalkr*'a1.sre¿r shçuftl hc c*rrp$ctc{, tr} sl lcaçl t}5o,tr of thc m¡L\tfnunr stsnds¡d Prerclor densit¡" Car€ shoultt bc ¡akcn n$t tö ûycrcÕmpårt thc btrcktill or ugc lnrge aquipmenl ntålr the rryall. ç¡¡lcc thir cgultl çıujc ctç.Lîritc l*trr¡l f!rc$fl¡rc on the wall. Srr¡ttc scltlcrncnt of dcep faundetron $$ll hacklill rheulel be e,tpe,ctetl. cleR rl'tlre natcrial ¡s placed corecll). ¡uxl cor¡h{ rcsult ln distress to filcilitieb ürÍls¡n¡clc(l orl thc backñll. l'he lntcnl resisfanrr of l'rrurvJ¿rllrxt ur rctstning wall fo<,rtrngs rvill bc * cûmhlnûtton of thc slrdrng rçxrlst¡lpce of thc ftxrting çn thrs lliundntro¡l nr¡rterials and passivc €sflh Prr¡i\trtc against thc sidc of thc lirt*ing. Rcslstance tn sliding ¿t thc bt¡tlonts trl'the tirottngs csn be c¿lcul¡rtrxl basr:d ,rn n coefficicnt of fricllrrn trl'{).45 ftassivc f}ressurË of ccmpuctr,tl b:¡ckfill against thc sides çl-thr tixrtrngr e¡¡r hc calcututr<l u-sing ul tr¡uittlcttt tìultl unrt uciSht ol'400 pl. 1'hc gçflicient ol'hrctiçn *rtl ¡raslvc pfc$$urc r,alues rectrmmenderl atxrlc ¡tsgume ultimate srril strel¡f¡ S¡rrsble facrors erísafet¡'rhoukl lrc inclu¡lcd ¡n thc cttxign to limit thc strgln rvhrch ç'ill or¡cür ¡t tht ultimalr,,;trcnglh. pnrticularlv in tlrc easc ttf psssivc rcststance. Fill plocctl $Fätt¡st tl¡c srtlsc ¡f rhe fnotings tr) rgull hlr:ral krar-ls shtruld hc ¡r ¡runulnr t¡l*tcrt¿rl c¡r¡tlpttctcd t{ì ¡l l€e$ g5qa trl'the nla¡rrntr¡Rì st*ndûrd Prtrctor tknritt' ill a ntrrtÉltlrc cînlcnl ne¡r oFtimurr. FLOOR SI.AB$ l'he n¡tur¿l ¡rn-sitc srrrls. crçlrtsrvc of top$rril. arc suttsblt to :t¡pËrrt liglrtl;- loadctt sluh'on'gradr: .;{rüstft}Llto¡¡ l'tr rcduec the efftr,'1s rrf'xr¡nc rliflbrcntral tnovemenl. I'ltrrr slahr shtnrk{ he scçeratcd fnlm ull hcanrrg rt'¡rlls and cotumn¡ rrith crputt-\}$¡l ''tl¡|lts g'hich ¿lllorr, un¡c:tn¡lnßl r.r.¡t¡ç¡rl r¡tovenleilt. Fftnrr slutr ççnlrrrl jornls should bc ucerl t¡r n:ducc tlantage duc to shnnkage craclnrng 'l hc rrqurrrrnentr ibr t¡int rpxculg u:rl slab rontirrccment shculd bc crtahlishcd h1- thc dcsrg$er basctl cn elplrrr'ncc ¿u¡rt ¡hs int*ndêd stsh us€. A mlnttltu¡n 't-inch lat'er r¡f frec' drurlrrng grarcl ..lrauld bc placcd Lrcnssth hg¡e¡r:cnt level clabs to l¡.t¡t,ot* drarnagc '[his m¡teri¡l shuultl eitnsrrl r¡l mt¡lu.s l-inch ¡I$rcgslc $ lth årt lc'ast f{P" ret¡ined on thc l\u 'l stcvc ünd lsç than lnn p*sring tht: Nr' l{Xl sicr c ¡:1. .'¡= i I. 'la . trì¿-f,H,P¡ Kl,¡t+tÂJt ¡\ll ñll mttcriuts I'ar support of floor slabs shtruld tre camprdetl to ul lsrsl (¡59'ô cf mcrimtmt rtandr¡rd Proclor dcn.rit¡'{t ¡ì nr(}iiturc contcnt ncår $pl!mum. Requinxl fill L'àrl crìnsl!.i of thc on' rite ¡f.rnutar st¡tls rlsrt¡id of vegetatitrlt, lopSoil índ,tuat¡¿glrrrck Wc rccommend tu¡rçt rdn¡dcrs c¡lnt'onn ttr at lcast the minimum rcqutfi:mCnts of ASTII E I 7'15 Cl¡rss C nratcn¡rl. Certlin llpor t¡pcs ¡¡re mone sensitivc ttr *'ålcr vÍIÍïrr trnnrmtss$rn thst¡ üthcfi' For floor s6bs bgnfig on angutar ¡onvel rlr $'hcre flocring livtittm scnstlivc l(r ìr*iler !'üFür tri¡nsm¡srion ûrc utiliLcd. rïc rrç¡mmend r vspor bamcr he utilrrsl contirnntRs lil the minimsm rËqutrcrn*'rrts 'f ASTM E I ?4S Cle"ss A matcnal. Thc va¡xrr rcisrdcr çhould ba instulltxl in ¡¡ccord¡¡rcc rlidr fh¡: n¡a¡:ufacrurclî' rtt'trmntendaltons ¿nd ASTM E 11"43 LJ}.;DERDRAIN S\'STEM Although tiee 1¡*tr*r r,rn-r enü)ufitrrcd i¡r ürc crplorutcry t¡r¡is¡g5 btlt¡n cxpectctl ercå\'iltttìlt ¿tçth, rt h*r hsËîr gur crpçñctce in the arcs that thc groundwatcr level ctruld rtsc clo*c to ¡nrund ¡urlbr.c ,l'thc trllËr ler.cl of thc sitc und lncal pcrchc.tl ¡vtrund$'srÈr cûn dcvcl$p during litrtcs rrf hcavy preeipituriçn t-lr scåsın$l runafl. Frc¿crr ground during $pnriB ru¡loff ccn crËûtc a perched c,ontlrt¡on. wc rec¡¡mmcnd bckrrv-grntic construt'lrcrn. such 4... rctaining çall-:. t:nwlrp*ee and hesemsrt ûr$es. bc pnrtccted iiam wettrng an<{ h¡'drrrrtutic prcsnure huildup }t}'an unthtnlr¿rln syflgfil Tl¡{: rlrn¡ns chau¡l ccrL.¡rst ot'tlrarnpi¡rc placxl in thc krllcltl of thc *dl backfrll surroundod atxrt'r: rhe invcrt le vcl ç ¡rh fræ-d¡aining ¡tranular matenal. Thc tlru¡n çhoultl he placcrl at cach lcvcl of cxc{¡\,âtir'¡n and at lcsst I Êrar bclarv lorvcs¡ ad¡accnt finish grode antl slrr¡>ed ot n minimum I o's k' u surt¿hlc gr:¡r'rty Õutlcr. Frcç-tlra¡ning grcnular ¡nüt(Trill used in ths un¡Jr'nlnllll s)Ttem shoukJ r-ronlain lcss th¿*r 3{.'e pussrng thc fstr. Jû{l sicve. less than Sf}-qa p$rsrrrg thc No. 'l sieçe a¡¡d lt¡tvc ¡¡ nls.xrmu¡1 sritc st'l inchrs 'flre drnin ¡rarc! bsektill shnuld bc ¿t least l''., tctt rlcc¡t' SL¡RTA(-T DRAI\.AGI 'l-he r'ol¡rrvrng rlrarlagc ptecðuttons shout¡J trc obsen'ed dunng c+nslrt¡ctinll snd ma¡nt¿ined ¿t all trnrc¡ sfier the rcsirlence h*r bee¡¡ complctcd: H-F" i(tJ*4AF : '.,,ir-- ! f'i, ' l å1 ,' + -r:r' -ti- t)lnundatrrrn ol'thc t. ,,tt¿sttrill s.*rävatiuns uncl underrhb arcls should be svorded tluring conrlru$ion. IjrtcnÛr hackfìll shrrul(l hc *tl¡ustnl lli nr'€r Upltmunr rn(rtrture ¡rnd ü$rnp¡rctctJ to ùt l$$$l 95nã çl'thc murimum standutd Prcc¡rr dcruit¡- in povcment antl slctr arc*s snrl to ot least Ð{lo'¡ of the maximum slandard Prcelur densrty- rn lanrlscapc srç¡.r. l}e grrruntl surlâer' surround¡Rg thc cxtrriur ul'the building shsuld be slcpcd to dr¿in ¡rryov Êom the found¡tion in all direefic¡t¡. Wc rccamnrc¡rtl ô nlnrnurn *lo¡rc r'rf I J tnr.'hcs rn the lìrst I (l l'cct rn unpovcd artxs anrl ¿ minlmum sloçrrc ol'3 rnches in ths lìrst l{l ikt in prvul ar€å¡i. Free-dr¡ining *'nll hackfill should he ccrered rvith frlter fabrie nrul cappctl \ñrth åhout I l'cct nl'tlrc on-sitt' liner grnurcl sorls to tuduçt: surt'açe wclcr inliltr¿trcn. Rrn¡l'du*nr,Frlutr un¡l drains should dischargc rvell hc-vnnd thc limi¡s of ¡ll hackfill. Lsnrls*pirrg wlrislr rtl{urrËr rcgrulor hrav¡, irrigation slrould tre lcc¿tad at le¿rt 5 fc,ct tnrm faundation walls :) 3t ;t) tl LtlllTATlotr¡s Tbis rtudy hs!' t|ütÐ !çntlsclèal in ¿ccrrrd¡¡nce with gcncrally rcccFted gcrrlcchnical engrneenng pnncrplcs cnd ¡n*ctices rn tlìrs ûtct ¡tt lhts ltmc. Wc ntakc rur watrûnty crthcr e.\prr-xs lrr implrrxl. lbc conclusrc¡rs ê¡rd rlîornrnendstir¡ns iuþmitttll in this rr?ort ¡rre bascd uF$n thc clnts abt¡ined ticn¡ thc crplçrtrttrr¡' f¡1rnnÉs tlnllcd sl thc locatitns indicstcd an f;i¡rrrc I, thc pnrpased ty1æ of crlnstruçlilln and uur expwience iil lhe ffe.l. {}ur scn'¡ces do nol ¡ncludc dctcrnrrning thc prc$encc. prct'cfllir']ft cr ¡xrr-trbililv trl'nxrltl ar ctlwr trrulcgrrXrl ccntaminants {!!'IOBC} dcveloping r¡¡ thc futurr. lf thc slisr¡t is cr¡ncemed obout þlÕBC. then a pnrfesvrrnal rn thrs rpecral fielcl ol' Fracìicc should he consul¡ed. {}ur findings insluclc rttter¡nlalro¡l arxl t:xtrapolntit¡n ol lhc subsurtbcc cûrldrlrr)*È itlrrltrficrl ¡rl tl¡c cxploreh,rrv krin¡Þ stld vsnatrons rn thc sutrsurtbcc r¿rndititns mû!' nnt bsome eudent rmiil exc¡vatron is performd. li ccrul¡t¡ons cn¡xruntcrcd dunng c(rnstru{:ti{'}n sFpc¡rr ¡ilffc¡cr¡t frunr thnsc tLïicnhd ln thrs rr?$rt. rve should bc nt¡tific.¡J so th¡t rc-cralu*lir-¡n ul'thc rugrmmrrnlati$ns mav hc madc. Thrs rcptrrt h¿s txcn firrpersJ tbr tlre crclus¡r'c use b¡'our client tirr desrEr pufTtÕ'ies lrVc arc ltt¡t res¡xsrble lirr ter'lrnic&l rnlcrpret¡¡troni hv r-rthcrs ot'our mtfi-rnuatir¡n. As thc ¡rnrjr:ut rvolves. rvs f '¡r1,e, ! f l-:ì " t. ,r ¡ j-1!.H-P*P¡¡¿4¡¡ I I I I I I t I I I .q- dffi¡kl psovi{lÈ ccntÈrucd glËStstim fld tidd sr¡iæ drning cor¡sfr¡*iur¡ n rçtrisrr s¡d rræniror the implørxntation ofr¡t¡rænrsgdsions. ad to v6ify ttg thc ræomraæd$iass l*vc kæ *gr!ø¡*tgy inrq-rud. $ignificeat dc*igr cårngç may rq¡uirr ddidürld s*alfæis sf ¡g€diûstti{rn5 t{r thrrc(xrfrrff,Ëtd.atirms ürEËû¡cd hscin, \t¡cËqoffülts}dsn-¡it+où*gr.ülisn of rxrw*fio¡¡¡ ¡¡¡d fur¡rdetioo bcæing sralr and tcrtin¡, of gñt¿tufet ñll by a ¡ÊFf€sca&rire of &c guxcdurical ergrnocr. Rcrygå¡lly Sntxniucú H-P+mlM*lt Stc,rssr L Pawt*k, P.E. Roricr*cd by: tlütiçl €,l{ardin P.E. SLF¡&a$ Þç.,erl¡tÉ !+?# I I I I I I I I I I I I I I I I I I i I t*ì g¡t ¿ .' ROÂF'NC rûPd Êtvtç - Ëtiflc¡tÑr: SfrSAC¡. \ '.tholùø' {alo$*o ¡. . - ^PFÊ0X$rAlt'iat rjr SLilPi.\\8ö*¡Hû 3 a\I I \t t \ L4'+ da+" æ$lle ¡ a ¡0$r¿6 I r.Ðl å3 I h1o, tù¡yaBOR|I¡C ¡t\ ! \ *tu ì \ì \t \r t1l Qå \\I \./ I It æ;r,-i : :¡ {* åit,;;*:¡.¡l¡ô!l l¡-êLi - 1Llì ì 8-7-68*H-PVKUMAR LCrCÀTt*i.¡ Gr tXFL0RÅT*ÊT B0Ftr¡ç5 rig.1 æ :" --'-"- r- rr r- |: - -t I r r : rlq{üi Iir ,1,{?¡ô,trJpq, J Js¡r¡i'i , üüú . mfr{i !t. lff i[ rr.ll' ,rL '$r" ts, r{,*'rß*Ë| 'ì;i1û -. ,ii,^r,r,t - I'tI!I\ôt ;[.lt* çrÉldÊ !úr(n l¡r.t ¡¡x, cr.¡r. r)rt{ Ër{iri"ffilü.1\iIgilf llil íl,¡ì/ in-{Lt, ü,rrta. ,ürTnüq çr"trt|. üü'ft. füt}¡tlti sïrü? $rüäaJ*¡ t.ìv¡1¡{'1.ì*.þf;t' t ,?.t.;rf¡r$ f Ð"fij!, Slt"ft, ¡¡.Àtrtt, {i}lfiìItÅT. !üt4â" $¡üt! tñgi t11.¡r {:tli {&;}4lirfi"1 I" åt 0$ ',r[44*-. crG (rnrr rä.fr]r 1¿Ë{û.r larr to r¡rr }fi.iraf,r È..tü{FÀ xi€t,i*,*' l; í. -f!r{ ûçrx l.f¡'iç æl#tilg roftfmm; *n$u *lffi t4 * trrtl[ fl;ur{tf ¡sN, qü{ l*øil ü¡{tri,... ,1.*t;lt.{I'.t.l-,,1,i.. $It-1 - rðrt, r]Itr'r,lr.d'!i'l'.;¡¡,ir $*r 'l;$l ' ltrù'.{'{S }; It\¡ '.trqu 4 ,i.¡-t),1it'ro r{lrto!Íft fâf.i".i"t$r .ü fi¡.'ffitr i.þÐ trl|rü1r¡l !,ltf#tf ,i¡lrlf. t t/l-,r¡üïr 'û. IrttI 'f*ï$1 tlrü.il0 ttr{"Trfr{ ttltt!,r,! t:tr ûr. t:lrr,ill tãf {¡t{ll !ü¡i ffrñl HÍlt¡lt[ lit¡l f I Lßfg üJ I itô-tr{hÍ*.r*å¡å|ll- rr$ffi x¡ il4Þ¡! ¡fpt {;ûtårf] 19 i'*tt. üt ¡¡rri,lt r! it*Ìttl!".'- ftf}ft| to r¡lt* {lgl1. få{¡üü!r-irfí ål 'i}.f füi (ú ftq,il3l,I r{¡¿:lI¡. ¡ûtû¡¡ $fût¡.'* {,f,ll}t *l ütr} lñllt (Ae{.û td\r-üüt gfi,rfrÁ.!Þ r -1.!,1,.: l[rñ, t,lar rl 1{Tr if'';lfx' f'tftt."t"¡tpÏüt,,l lü ülrtll¡lllltr mlhgrf fffi iln,¿f[ öil #rf,*¡Ë rr" *ttt iln . ¡*#Ctrft ra(ltt ;{lr$a,trtÍ 4ri¡.1 fi{r¡# "$¡ülff l,it Uçaf!üð. d tld ütlrâlrrttr lïnú$ Un rf.rg|,'ült ¡rl|ltt#rtÍrr tf Ftfþ:r'$h, fl¡¡lr}¡t, flf,rn $r t¡{t ltrtÈ rlr} ñts$lstüt r|il &{r.fitS # ?¡¡i fr'tÐllúlT ;tßß'tr* r(¡5$rt¡ }f ¡¡r.} Uir.c{ rs}ütTr r0 lilttd | .¡[ ltÍy * r@r, rlfl¡frô¡ l$fi l$Ff4{lt{ìfi ülüS rfttÌl¡i* r¡å tM]r¡t{n!! Þ(hlltt ü¡ f¡üt.#ärftr ß;4'} t1î'{r*it tr} lt rru,*rl N*ñ.Gßt s¡ fc!. a.flrrsô ilî,ftr. 'Tld rfifl Íñt[* *rT,(t¿.$ t¡wll titi Îtl( frÍrsrroñ tflH,tüsl rÍtrfgf il*¡ãnr$rt.1[ $riiol}Ít trfltñ TrÌ{*¡i, nll! ¡* w ru,*lr¡m*-¡ir ti-Ë{rÐn¡t.,+ *üÊljr.stÁItl r'-I¡.! lrffit ûrl t.t röûs üü( $,rrn*tû r* tl|t ,n rrß ùruor(ürfltfr* rtìfi¡rtt rï¡ütt¡âfü*å I tsl jrnr ,.f'|r ¡.l' omrr tü. r.m- -,, l"t*frfl$fr rr,*¡ ft*,{"tt¡l( ¡ trlft :ø.ttrrr (rl (rÍrt S l$tili+{ ç lilttrr¡¡f l.t¡âßþ üf m. ¡ !ftü $ffi, ! r,T¡.r''füSr .trül.r}tf i¡lüi"rA fs !# ffrt ($tf û !t{}I JrÍ'l\ türì{!,, À. !.r , ¿f¡s. )H-PrymJft,lå,Rrô1 tå^ mürnß$ût.lt5 r¡ fft(rt*tfrç 0dttûSr! " ¡ .ååå I I I I t I I I I I I I I I &¡¡¡lrÈl l|tlt r¡¡r"ñt t : r*f *f { rra- id*"'t .l¡ : -rat¡ il F .11 ¡t llË :tä...-,_ =t ... r!Ë a.1r tt tr¡ tta :': ,r¡ trff¡¡ts l{¡: .-J I¡t I]txI 13 aû ð = * ó ¡-! l¡s i i:l:! Ê.aä-êr r*l-;5¿åÈ'r'.TÉi..Õa . ¡ .,;¡ ¡ ! ¡ ¡ r;r'ftt at rt ¡, At ff,l !€ f*þ cL¡Y ?Ð gll.t ı¿À|llIrse gf g¡¡.Þ à*K.E3ft¡lt j Ct.æ¡ l €,|¡¡rtt t+ I *t!Ê {srr3 ¡_*t? $¡4¡ ûf ËeÞ LG4r *rdF*t 7t:i¿it ¡¡Ë' lr¡r tl f ¡1 31*t!' þ.Êfr ttürr'Ðø+l¡etll *t$q.fi{t ¿rÉri'dl |¡tlf ¿ta¡rÌ¡{t : ¿r rs* irt :lC! : aê: !{, i, ¡ F.il.* lÈ{l a¡¡a tr,¡rl i'r-r¡.I fr : : ia ln r.¡ l*r !tÊ F tút *1Ë E¡ , : .i!f* fi. ú!. *È t.t, tl*Q e llf i¡f¡'f fr' * I ¡ì ., lr- l* !6 : _f,i !t *f *r' 'tÉ rjr *rf ntr' *çt tii+ '¡it'" ..r .'t :rtl rl "T {t rtl ít €i,.Y ?ö ?{t ? Ë¡x*: cStSLtgrx¡rf at*r'\'ra .tû+¡3{ tr'.Ë i cgrq¡g .ilrvÍr tG r É¡raç ll T t-¡ëJr* rt¡ë? lEJÉtre¡tY $.ût"r ü¡û.F¡,t, F. Såg¡''1¡ t.С 3or-a1 6ra.'*r rtO¡ fo*re ¡ f + g¡i; ¡xË li,.t G 3 !ra! ¡d rsã O¡*l i.rr à l¡. ã*r- ril E ¡-a ?hqÉlæFder¡E- çá s rt*. ña|l ra 'räFalËrl d ;¡ıa. ¡ ¡a-¡rtar" læta r¡¿ril t.|.'{ a Ç'æl >tr .¡('J{ '¡ rttl ¡¿tf ú"r Crlt.ìa/È a:lr il ræ f¡Êat I g- 7*Fg6 I H-pëKUMAR GßAÛåTISN TIST ATSULTS fig. 5 ét t ]i! irlt -/rC3¡i) Ê¡¡l 'tt|û i.¡ú 's ÒÐrff- SMiö Ì à.*lq q..F. .+¡È¡l€-tlæadÐ+ra ir ;Ei¡t *rt { Ê€Ff.&IæñÉIqQta; Ër+a* tr r¡h. *ú*¡ù¡a .l ra* àrl¡t+ ra¡*t t-r rÉa¡çlt*¡ryñ;trã'r,'trarJ ¡s¡¡t ¡+€, ta tldçrË$tr¡ì g*aÌ{l!itt. u ,ç Ert?rÊr¡ê-ü t¿¡-1tr¡T!*t [r afl] 4rr ¡?:tlffIT'taIrt9Sg -¿*g rèlvlÂlfÞt*d-HErl'lslÐ rsSt tåûÌÅvûvugils*IIIIlIIIIIII TAEIE 1SUMMARY OF LABORATORY TEST RESULTSrrrrr---Projoct Ì{o. l&Z.6gSH-ÑKÏIMAFr!9il. .. ,3Ar{ot\) |PERC€ÑTPAS$T¡Gilo 200SIS\/Esort TYßtf8LocAGRÂOAUilCO¡IR}{OcoFRE$,$tv€$?RC,Ì'¡cTHrlQutoUfrlHAIURALORYnß{$fIVä*ir*.("¡)pLA.Sltctàrocr(NÄIURALUOISTURËcoHrcilrsoft¡¡G i otrrxI,\i1sJ,;r*titI. -aSilt'r S¡¡lrlr, (irsrcl't,"|li"trlqIi!illtr ('lar s,r. S.rrrritJlrìrì.. ,. .. *, a.,.,Slrphtl¡ Silrr S¡rndt ( ir¡¡r cl5ilìil"rS;rnth Silt tnrl ('lirv4| .t I\"ti.l)Sandl ( irnr ulIIIIiII;tlt --- .r¡lIIII1"-^"-*. '. - Iti1t--.--' -;IiIIII