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;mJ spring munths. Gruund��:ilcr .rcp:ipc i. rsprctcd lu Ilurl,ia�r ;�s a resull ul>ca�un. precipiw�ion. and <br /> othcr lactun. <br /> CONCLUSIONS AND RECOMMENDATIONS <br /> EARTHOUAKE ENGINEERING <br /> (iculineinccrs h;is c�:du:i�cJ thc ,ilc for scismic hoz;irds iucludinc liyuct:�ciiun. Imcral >prc;idin�, t;uih <br /> �uplurc and r.irihqual:c induccd landsliding. Our ccalua�ion indicates ih::t thc siic docs not h;nc <br /> liqucliablc soils pre,cni :�nd thcrclixc also h;�s no risk uf liqucfac�iuii-induccd latcral .prcading. In <br /> addiiiun thc sitc h;is a lu�s risk ol I:Il1Il 1U�11UI"C:IniI GIIIIIc�IIIII:C-I011lll'l'(I I:IOIItiIIlI117L. <br /> \Vc rccummcnd thc Zt)06 Intcnmtionnl 13uilding Codc IIBCI paramcicrs fi�r Silc Class, shon period <br /> spctU'al responsc acccicralionlSs), I-sccumi period >pcc!ral responsc acccicralion ISiI. :md Scismic <br /> Coctficicnls P:� and F� prescnlcd in '!ablc ?. <br /> Table 2. IBC Seismic Parameters <br /> Recommended <br /> 200618C Parameter Value <br /> Sitc Class C <br /> Shart PeriaA Speclral Response Acceleraiion,Ss(Percenl g) i5d <br /> 1-Second Period Spec�ral Response Acceleraiion,S�(percent g) 55 <br /> Seismic Coelficient.G, 1�� <br /> Seismic Coelficient, f, 1.3 <br /> EARTHWORK <br /> Bascd un tl�r �uh,ur�;icc .uil rundilinns cncuun�crrd in tlic h�aines. �cc cspcei thal Ihc �oils at Ihc >ilc <br /> m;n� bc c�c;i�;ucd using cumrniiunnl hca�� Ju�� cun,uuetion cquipnxnt. l hr m;ucrial> �cc cncoumcred <br /> includc IIII. LI:II'IIII IIII. 8111I I I':II1tiIhUll:ll Rl'tI dcpnsiis. l'hc nalivc suils may rcquirc a larec cxc;i�:uor tu <br /> :iccumpiish Ihc cscac;ilion,. (�I,iciul lill de�-osil, in Ihc arca cummonly contain cohblcs :md bouldcrs Ih;rt <br /> ma�� bc cnrountcrcd during c�c;icaiiun. Acaxdinely. Ihc contraclor sliould bc �,rcparcd to dcal ��ilh <br /> houldcr;. il cncuumrrcJ. Addiiionnlly, slickcn>idr. and Iracturin�� arc conunon in thc 'Iran�iiional 13cd <br /> de�iu�its, �chich may cau.c stahiliry concrrns lin planncd upcn cut, in Ihcsc soils. <br /> Thc un-silc .uils contain signilirani lincs �m�ucrial passing Ihc U.S. siand;ird Nu. '_00 siccc) ;md ��ill h� <br /> hichl�' mui,uur-scn,iii�r ;md su,cc�itihlc lu Ji.lurbancc, rspccially �chcn uct. Idcalh. rarth�cork shuuld <br /> hr midcruikcn durinc csicndcd perinds ol Ji� �ccaihcr �chcn ihc surlicial soils �cill bc Icss susccptihlc to <br /> di.turh;mce ;md pro�idc hcurr ,uppurt tiir con,Ul�ctiun cqui��mcm. U�� �cr.dhcr cunstruc�ion ��ill hcli� <br /> rcducc r;irth��ork coz�,and incrc;isc �hc putcnual tix rcusine thc tl;iri;�l till .uils as lill. <br /> l'raflicabilily on Ihc sitc i, nul c�pccicd W hc difticult during dry ��c:uhcr rundilians. Ilu�ccvcr. thc <br /> n.nicc suils �cill hc susccpliblc ro disturhancc �ium cun�uurtian cquipmcnt durin� ��r� ��r,uher cundiiiuns <br /> and pumping anJ ruuing ul'Ihc e�poscd sails undcr cyuipmcnt luad. m;n uccm. <br /> Clearing and Site Preparation <br /> ('un,iruction uf �hc prupo,cd UnJcrgr:iJu.uc I�:duc;uion C'cnlcr �cill rcyuirc Jcmulidon ul thc csisting <br /> ��nrkin� ;irca, sidc�c;dks. ;md o�hcr ;ippuricn;mi slructures. ('oncrctc and asplialt ma� Uc rccyelcd and <br /> i�u.cd as suuctural tilL oihci�cisc it .hnuld hc rcnw�cd I'rcm Ihc sitr ,ilong�cith olhcr cunslruction dchris. <br /> l�:i� �,� ��;o-uu5-�iu ���� l�llyP.J GWENGINEENS�� <br /> .i.n;n�i,i I� '����� <br />