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Wall Drainage <br /> fo rcducc Ihc pnicnti il fon c�dru>�aiic �saicr prc.•urc huildup hchinil �hc rctaminp �c:ill:. �cc rccommcnd <br /> Ihal Ihc �calls b� pn�cidcd �cilh adcqu;itc dr;iin:i�c. ;u �huun in l igurc 3. \1',ill drain:icc c;m bc achic�cd <br /> b}� using frcc chaining wall drainagc ma�crial �ci�h perfi�r;ncd pipcs io dischargc ihc cullccicd �raier. <br /> Nall drninagc ma�m�ial ma�� consist uf�eashcd 3;A-inch tu Nn. 5 pc;i gr;iccl or a mi�wrc of abow 30 to <br /> q11 percem cican meJium iu coarsc sand nnd 60 tu 70 perccn� tinc gi:n�cl. u�iih ncgliEihlc linc malcrial. <br /> ;�Itcrn;ni�cly, thc ��all drainagc matcri:d may cun,isi uf cican gr:ncl (praccl hacklill far Jr;iins per '_OU6 <br /> \1'SDO"I' Slandard Spccilicatiun Sccliun 9-03.1_'(4p surroundcd �cith :i nnn-�coccn grulcstilc I;�hric sudt <br /> as \lirali Ia11N (or approccd cquivalcm). Thc zonc ol'�call drainagc m:ucrial shuuld Uc '_ Icct �cidc and <br /> .hnulJ cxtcnd frum Ihc ha,c uf ihc�call to�viihin ? fcrt uf Ihc ground surLicc. 'fhc �rall drain:�gc m;ucri:d <br /> �hould hc cu�rrcd �cilh '_ Iccl ul Icss pertncablc ro;ucrial, such ;u Ihc on-silc el:icial till that is properh <br /> ��ini,turc eundilioncJ and compnctcJ. <br /> \ a-inch-diamcicr perli�ratcd drain pipc should hc insl:dlcd �cithin �hc Ircc-draininp matcrial al tlic basc <br /> uf cach ��all. AVc rccammcnd using cilhcn c�:i��y-�call solid pipc ftiUlt-35 PVC') or rigid con'ug;ucd <br /> pulyc�liylcnc pipc (ADti N-12, ur cqunll. AVc rccommcnd against u�ing Ilc�iblc iuhine li�r tiic �call drain <br /> pipc. l'lu li,uiin� drnin rccommcndcJ nbo��c cnn bc inco�pornlcd into ihc bonom ol Ihc Jrainagc �unc <br /> nnd uscJ fur Iltis pwpusc. <br /> Ihr pipcs shuuld bc Inicl �eilh minimum slopcs uf onc-ha�l perccnt anJ Jisch;utc inw ihc ��urm ��atcr <br /> collcc�ion systcm to cunccy ihc ���atcr uli'silc. Thc pipc in.t;�llations shoidd includc a cic.mout riscr ���ilh <br /> covcr Ior;ucJ al Iha upper end uf aich pipr run. �(hc cicanuuls cuuld bc pl.ical in �Luh nwunlcd :icccss <br /> !ioxa. Cullccicd do�cn.��nu� �catcr >hrnild I,r romrd lu a��pro�iri;uc disch:u_�r puini� in .cparatc pipc <br /> s�'>tcros. <br /> Other Considerations <br /> I[xtcriur rciaining systcros u,cJ tu achic�c gradc tr;msi�iuiu ur for land.c;iping. r;m hc cun,uuc�cd using <br /> traJilional siructur;d svslcros tiuch as rcinlixccd concrcla CTIU blucks. ur rockcrics. r\Ilcrn;di�'ch. <br /> rr+aining ��:ills can consist uf rcinli>rccd wil and block liuing sh,�cuucs. In rccrnt ycar,. ihr I:wrr <br /> suuctural syslcm li;is pro�cn iu hc an cconomically rr,asun;ihlc altcrnalicc �o morc iraditiun,il rctaininc <br /> �c;ill syslcros. \1c can pruridc addiliunal dcsign rccumntcndaliuns li,r rrin�iarrd �ail and hlock I:icing <br /> sirucuircs. if rcquc.icJ. <br /> CANTILEVER SOIDIER PILE WALL -SOUTH ACCESS ROAD <br /> Gencral <br /> � l\'c cs��cct il;.n ;i ��rruianrni .��IiJrr ��ilr ��;ill ��ill L� u.cd I�n �hr .uulh :ircc.s road cul Juc lu spacr <br /> limiuuion. thal rc,lrict Ihr u,r uf Irmpoi;irt oprc cut�. 1'hc �call can h� dc.igncJ G,r ��rnn;mcnl supporl. <br /> Pur a permancn� suppun cnndi�iun. �cc cspccl Ihat Ihc �urm:mcnt liicine tin Ilrc .�+I�licr pilc ��all ��'ill <br /> .oroi.i uf r�,nrrr�c UI'i1�IlCf:IITIllII'l'IUI:II I11CII1L:11181I11'lI lU Illl` tiUlllll'1'�11IC \c:III. <br /> Soldier Piles <br /> \\r recummcnd Ihal �he suldicr pile �c;dls he de,i,�ned usine Ihe e:uih pressurc diagr;nns presented in <br /> I i,mrc a. lhc s�ismir prcssurc �huuld Uc inrludcd in thc dcsien ul pc�mancnl �c;illc. (ilhcr surcliarec <br /> Inud> ~h��ul�l bc cnmidcrcJ on a r;ur_hc-r:uc h:�.�i. n��Iw�cn un I'ieurc�. <br /> _ - - - — -- <br /> �,;, •„ +c,r, ��n-_,�,i l'0,(P IJ GEOENGINEE05� <br /> i.�,,n���� l.� _i r <br />