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cm hr Ilaurncd. rc�radcd to :idd inicnncdiatc slopc bcnchcs or aJditionnl cic��atcring can hc pro�idcd if <br /> Ihc poor slopc peribrntancc iti rdatcd lo gruund��alcr sccpa�c. <br /> FOUNDATION SUPPORT <br /> SeKlement Estimates <br /> Thc si�c conlains �ari;ihlc ground conditions that includc till and comnrc.siblc silGda�� soils. Th��sc soils <br /> may inducc sctticmcnt undcr huilding loads undcr rcrtain conditions. Siaiic luads Gom thc n���ia�„� "�n <br /> romprcss and suhscqucmly inducc cculcmcnt ol Ihc nati�c sill'clay suils and io a Icsscr es�cn� Ihc luuscr <br /> lill soils. Sculcnums in �hc na�i�c sill;ilay suils arc a signili�anl conccm a� thc silc. Up to I2 icct of <br /> cumpressiblc naticc �ilt;day suils �ccrc obscrvcd undcr ihc �oulh sidc uf'ihc huilding in burin� i3-6. \\'c <br /> cslimmc Ihat u�; lu d inchcs of sculcmcnl may occur whcrc hca�ily-loadcd column I'ootings arc loca�cd <br /> o��cr thcsc cumprcssibic sihiclay soils, i( no� properly miligaicd. To mitigalc potcntially damagirg <br /> scidcmcnl �cc rccommcnd thai tlic building lounda�ions hc �upported on a pad of impoticd strucuual till <br /> ns dcscribcd 6clow. <br /> Foundation Design <br /> Shallo�v sprc:id liroiing m;q bc uscd tu support Ihc buildin� providcd Iha� s�n�ctural fill is placed hclo�� <br /> Ihc liwlings. ;is dcscrihcd hdo�e. I'ur shallo�� found;uion suppoh. �cc rccuntntcnd �tidlhs of at Icasl 24 <br /> and 36 inchrs, rcspccticcly. liir conlinuous ��;ill and isulatcd rohunn fiiotings suppuning ihc proposcJ <br /> buildin�. An allo�eablc bcaring pressm�c of 3.00U psl m;q bc uscd ti�r �iintings supponing ihc �ecsl sidc <br /> ol'ihc huildin� in Ihc luckcr room 8I'l':1 �fUlll LIIIIIIOI`ti A IU C. Ail allo��ahlc hcaring pressurc of 2.5p0 p,1' <br /> sliould h� uscd lin liwtings supporting ihc rcmnindcr u(thc huilding cast of gridlinc C. Thcsc allu�eahlc <br /> hc:iring presswrs apply lu Ihr lol;d dcad ;md IunL-tcrtn licc loads ;md may hc incrcascJ up io onc-Ihir:i <br /> lin tihur�-Icnn lirc lu:ids such:u�cind or scismic li�rtts. <br /> 1'hr dcsign I}ost dcpth lix �hc Pucci Suund ;urn is 12 inchc.c, thcicfure. ��c rcconmund Um� cxtcriur <br /> li�olings li�r �hc buildinp hc limniled at Icasl 18 inehcs hdo�e lo��est adjacent linished gradc. Intcriur <br /> liiolings ,hotdd bc Ihundcd:it Ir.isl I'_' inchcs bdo�c houum of slab ur adjaccnl linishcd gradc. <br /> Partial Overexcavation and Replacement <br /> Supparting ihr huilding on sh;illow sprcad Ibolings will rcyuirc rcmuving Ihc upper poniun ul' <br /> undorumenlyd lill and c��mpres,ihlr silCrlay soils I}om hclo�� thc Ihotings :md rcplacing ihcsc ma�crials <br /> ��iih properly compac�cd impui1rd slrurtural lill. This mclhud of p;utial ovcrescav;uion and replaccmcnl <br /> ��ilh su'uciur:il lill �cill milic;uc ihc risk associ:ucd �ciih csccssicc sctticmcm undcr Ihc huildin�. <br /> \Vc rrcummrnd ihal Ihc huildinc liwnd;uiuns IucatcJ lium eridlincs D to li and I'rom 8' lo �9' hc <br /> mcresca�a�cd h� :u Icasl ? licl hclu�r Ihc buuotn uf the timnda�ions. foi�lings locaicd along gridlinc f3' <br /> should br unrcxc;nmrd by 2 lirl. In our opinion. thc liioling. lucatcd �i'um eridlincs A lo C do nut nccd <br /> w hr i�crresca�;ilcd �utd can hc suppurlcd on csposcd suhgradc �oils aticr escaca�ion and al'tcr Ihc <br /> cxpuscd coils ;nr rccompacrcd using a hnopack. Thc u�crc�cac:ucd zoncs hclu�� Ihc huilJine <br /> liiund;uiuns should hc backlillyd �cilh impo�lcd svucturil fill such as Graccl Bono�e per \1'SDOT <br /> Stand;ud Spccilica�iun �)-Ili.ld. Rcmocal uf ihc csistinc lill and sil� clay wils should cstcnd hc�'ond lhc <br /> cdgcs uf ihc huildin� liumdalions ;i dislanrc cyual tu Ihc dcplh ol ihc cscavalion hclu�� planncd <br /> �iwndaiions. llic cunrrcic sl;ihs-nn-craJc sliould ;iko hc suppmtcd un ai Ir,isi a l.5-fou� �I�ick pad ol' <br /> slruclural lill. <br /> l�ilr\�n.S.�:in.iuC.uU Pu,GP 1ll GEOENGINEEII� . <br /> .luh�l'. :nllt <br /> �� <br />