Laserfiche WebLink
i <br /> � ','.ih and Cl:q' tiuils. Cumpressibir mcdium siili���� ,..tiii�silt �uiJ clav �oih ���r�r nh,cn•cd in ��arh �,t thc <br /> i L��i mgs (csccpi hurine 13-$)lo dc�Hhs r;mgiu�; hum GS: iu I_ li�.�.� Lrlu�� ihc c�istine ground �url�acr. lLc <br /> ,ilVd:q� dcposi� appcars Iu bc abscni undcr thc wcsl sidc ot �hc building bu� is up to 12 lect thicl:cr m�dcr II <br /> ihc snuth sidc of'the huilding near buring R-b. "I'he ,ill �md clay layer increases in depih and moistarc � <br /> content f'rom the nonh��esl lo ihc soulhe;isL '17w deplhs W denser bcaring soils are sumntarired ir � <br /> I7ahlc l. <br /> Clncially Cmisolid:�lyd Soils. Gl;icially cunwlidaled soils �vcre obscrvcd in �hc borin�s from a dcpth of <br /> I 'S; fcct to ihc dcpth axplurcd. 71ic glaci,dly consolida�cd soils gcncrally consis�cJ i�f dcnsc lo �-cq� dcnsc I <br /> >ilty linc sand�cith uccasionnl gravcl and h:ud s;mdy silt with tracc gr:rvcl. <br /> Tablc 1. Elevation of Densc Glacially Consolidaled Soils <br /> I � Approzimato Ground 'Joplb to Dense Solis Elovallotl.of�ense Solls <br /> ExUlorallon_ Sudace Elevation peeQ (feet) �. � (foet)� . I <br /> ---— — <br /> ( �"� _ . �2 B 5 72.5 �II <br /> I . __ ..__ _._ .. _ . . _.. __ _.. ._ .. ___. _. __._ <br /> D-2 81 2.5 70.5 <br /> B-3 79 ... 6S . . . 72.5 . . <br /> I 8�1 79 9 70 . . . I <br /> 0-5 79 5 74 <br /> B-6 7B 12 6G <br /> � Groundwa[erConditions <br /> � Pl'fCIIC(I �fOUll(jR':1ICf\V85 OI)$CfVC(I IIl VOfIII�S R-J BIIII B-G llI IIC�)IIl$OP I I 811d O.S IL'l`I I1CI0\V IIIC C%ISIII7� <br /> ground swlace. respec�ively. Groundwater observed in bnring 13•6 appeared to be perched within tl�c <br /> hase cuursc and on the upper medium stil'f cl:q�. A piezometer was inst�lled in boring 13-G tu a dcpth ol' <br /> ^ 10 icct 6clo�r thc cxisting ground surlucc. Groundwaicr was mcasured in the piezometcr 2.8 lcet bclo�+ <br /> 9 �hc ground surfacc onc day aflcr drilling and 3.2 fcct bclow thc ground surf:�cc 12 days aficr drillin�. <br /> • (iromulw.itcr obscrvcd in buring 13-4 appcarcd lo be perc6ed on the Icss penncablc densc glncial depusits. <br /> 1'heru was no significant groundwatcr scepage obscrved in lhc othcr b�irings. Grouudwatcr obscrvaliuns <br /> � represent conditions observed during drilling and may not represeut ihe groundwatcr conditiens <br /> ihroughout thc ycar. �l'c anticipatc shalio���ground�vatcr scepage ���ill exist in pemicable soils nUovc Ihc <br /> sti(f clay and Jense to very dense glacialiy consolidated soils during the wet winter and spring months. I <br /> � Ground�vater secpagc is c�pecled!o tluctuate as a rcsult of scason,precipitation, and otBer Ihctors. <br /> CONCLUSIONS AND RECOMMENDATIONS <br /> � EARTHQUAKE ENGINEERING <br /> Gcol:nginccrs has ev;duated the sitc lor seismic hnzards, including liquefac�ion, I;Ucral sprcading, lault <br /> rupture and emyhqwike induccd land.liding. Our evaluaiion indicates Uie site does not havc liqucliablr <br /> � soils prcseN and Iheroforc also has nu risk o1 liqucf:rciion-induced lateral sprcading. In addition, tl�c silc <br /> h;�s a low risk of L•mll n�pturc and carihquakc•induccd Inndsliding. <br /> � 1Vc rccommcnd Q�e 200G luleinaliumd 13uiiding C:ode (II3Cj parametcrs fur �ile Class. short period <br /> specval response acccleration(S5), I-sccim�l periud spec�ral responsc aceeleration (5�), and Seismic <br /> Cac(ficicnis f� and P� prescn�cd in'I';tblc?. <br /> ' <br /> ------ -------- - <br /> r�t�n„ �xtn-ua��-ur� --- -- /����3 — -- <br /> � .h:rlt.lnU.1. GEOENGINEER� <br /> � � O <br /> I -3tv�.rr��- . <br />