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\1�r, rccomiucnd ih;it thc cmbccldeJ ��utiiun uf�hc .oldicr pilcs hc at Icasl Z Iccl in diamcltr ;md ccVcnJ :i <br /> n�inmmm distancc of 10 Icct bclmc ihc ba.c o(ihc excacalion to resist "kick-uut' . \1'c mcummcnd u�ing <br /> ;m allu�cahlc cnd bc�ring �aluc ul' 2.SOb psf�o resisl ccrlical !oads. Thc allnn:iblc cnd bcarinE �aluc <br /> .huuld bc applicd io ihc h;uc arca of thc drillcd holc into .�hich thc soldicr pilc is concretcd. '1'hc <br /> :illoo�.ihk capacily m:�y hu increcscd by nnc-ihird ti�r shwl-�crm luads. such as scismic fi�rccs. <br /> ('asin� ;md'ur drillim� inud in;rv hc rcquircd tu m�uill thc soldicr pilcs hccnusc �hc bonntn ol the pilc ���ill <br /> estcnd hcl�m ihc ��n�und��ai�r �w f;icc. l hc e��nh:ic�oi >huuld hc prcp;ucd to dcal �rith Ihi�condition. <br /> Lagging <br /> \1'c rcc�n�nncnd Ihai ihc la���inc hr �Ic�ipncd for unilixm pres�urrs ryual In unr-half Ih:: ❑cti�c I:ucr:il <br /> pressure prcscnleJ in Pigine •{. 'fhis prrssure rcduciion is hascd un ;i m:i�imum ccn�cr-t�,-cemrr pilc <br /> spacing ul'ti lict. If a �eider sp,icing is desitrd. �c� should he consulted lin'reciseJ I;i�eing pressures. <br /> Lagging may consist of�ithcr IitnUcr ur a,ncrctc. II liinbcr i, u.cd. it inu.l hr adcquaic y trca�cd li�r <br /> prutcction agaii�.,l a:ucr and biudcgradatiun. <br /> Backdrair�age <br /> A suitablc dr;iinagr sysicm �huulJ h: inslallcd tu prcccnt thc huildup ol' h�dru,imic �round �c;iter <br /> prossures hchind Ihc soldicr pilc�call. If Iitnbcr I;icging is uscd. drainapc c�in L•t accutro�li�hcd bti s�ciring <br /> tl�c timb�rs apprusim;ucly 1;S inch ap;ui. \1 �ck drains ur strips of drainagc rrr,ucrial should bc insiallcd in <br /> I'runi nn c�hind �hc lagging. II'cuncrcic I;i�ging is �ucd (i.c shutcrcteL dsainagc .huuiJ c�msisl uf���iek <br /> drains or strips uf drain:igc matcri;�l imlallcd hchind Ihc I:i��ing. l hc slrip drains sltuuld bc :rt I�asl <br /> I�-inchcs�cide and cxlcnd �hr cnlirc hci�h� o�Ihc ��.dl. <br /> Thc >p;icc hchind thc lagging shuuld bc packcd �ciih n num�orcn gcolcsiilc I:ibric or mcdium w co;usc <br /> �und as �hc I.ig��ing is insudicd. This ma�crial ��ill hcl�� reducc thc risk ol'voids bchind ihc ��all nnd �aill <br /> prucidc additiun;�l drainagc uf potcntial grounJ�c;dcr sccpagc. <br /> N'c rccumnund thut �hc .irip Jrnins hc c��nnrc�cd �u a per�inalcd Jt;iin in�l;illcd ;dong ihc ha�c ol litc �call <br /> ati dcscribcd hclu��� in "I)r:iin,igu ('omidcraliims. . <br /> SLA� ON GRADE FLOOR <br /> Subgrade Preparation <br /> \1'c rccumnicn�! II�;u conci�ir �I:ih.-nn-ur,idc hr r„n.��ucirJ on :i ��ra�rl lacrr t�� ��r���idc uni�imn suppu�� <br /> and dr,�inagr. :md �n ;icl :is a ca�iill;in hrc:ik. \\'c r�prct �hal slab-on-�radc �lour> ran h� .uppurlcd on thc <br /> naticc m�dium Jen,e lu�cn Jcnsc silty �and ur stitl'ti� harJ sih ;md cla} cncoun�crcd in uur borings or�m <br /> ��rnperly cotnpactcd sU�ucmr;d lill cs�cndinc do�cn tu Ihcsc m:ucrials. I'iiur�o plucing thc gr;iccl I;rycr. �hc <br /> suhgrndc �hotdd hc pruul� iullcd ;iti dc.crihcd prc�iuusly in �hc "f:anh�cork" .rdiun ol Ihis rcpurl. I( <br /> nrcr.carc. Ihr .uhLradr shuuld h,�rccompactcd to a linn and um icldin�cunJiliun. <br /> Design Parameters <br /> 1hr eracrl I;rvrn c�lu�� .lahs-on-graJc .hnuid u�nsisl ol G inchcs of clr.m crushcd cr;icel. ��i�h n <br /> m:i�imum pariicic sirc uf I'-, innc�. and nc�liEihlc >and or ,ilt. If tlic 12-inch-�hick �carking pa�i laccr i, <br /> rnn.uucicJ and il';ucati cor.uimin:rcJ ��itl� .oil ;ir� rrmuccd, thcn ihc �corkin� pad laycr c;m b� u.cd ;is <br /> ih: rapillary hrcak laycr dc�crihrd ;ibucc. Por slahs d�,icnrJ as a hc�im un an clasiic li�undaiiun. a <br /> modulus of subgrnJc rciclion ut' I00 pci may bc u:cd fur suhgradc .oils prcp:ircd ns recummcndcd aho�c. <br /> , ,,. �„ <�.v�.mr�.uu_-___ _.--- _ . _. - ___�__Prl�t I.�- .-- GEOENGINEERS� <br /> _, .i..,, � /� ,- <br />