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Earthwork
<br />BaS'?t.'7i on the preliminary '.i.C.it'117'11:.aiion provided in, the ,.j:c"adling
<br />le"abo.rato j results, experience and ji.i`igr;2T,f-nt; 'i'ne :ahalictw
<br />foundation can be supported by the existing Ined.rt:Jck.
<br />`I`:he sails under the buildings { ings wou (d require an removal a CYP L.C1:Lmum,
<br />of 7 feet Y_'!"*low the lowest footing elevation. The walls of these
<br />excavation may vtW„r;'d zo, be traced or `..-hc.,.?ed as necessary u.,i tg
<br />this work. k. "fid:' f'X;'?'.Jsod :seal .s, WAin the excavation, should
<br />then be scar7.'i`:LE„d t,7 Ea. depth of 1 foot, ur' 4..a.N'`. 1 71..,i7.$;:ioned and
<br />compacted. The Cl)S'tlac Lion ;'sh .,.i.d U..ot4..*nq,7t. 7. shed by use of. such
<br />a cyni"3?C(I.E'd?t as to attain 90 percent %,.f: the laboratory evaluated
<br />111c1,b.L11ium density obtained in accordance is i~11 fSSTM, standard ".,15571^
<br />f;i4A, The ,.E.raov'edi soils" s.?o=:ltil then !)a replaced ced llss.i. 't zhe same
<br />c a,,c1 nii,';.s,a and criteria. Houi s^•"Derr, care 9i:oul7 ,,i t)i:. ,.=i✓P.en t.o Y'£?move.'.
<br />,any rack l<.°Y`tger, than 6 inches t'ren, fist. fi_si placed under the
<br />upper 3 feet. These NO! removals I5 t_,)t.am._2"a' occur under the
<br />buildings, founded at the surface, and ext~enil no 5 feel,.. n.7 tt:.ido,'
<br />'I:'.he building limits, , :i. p at.e allows. tt.l. o, any area to !"-Pce.", ve
<br />strGu..t.la:rral 8.vs.k:.l ng should be prepared in the tir ;al',=s n',a 1:,,e1.',
<br />Shrinkage is expected to be fists i-snst'7en 10 ;; C: :. 0 percent by volume;
<br />subsidence s...t. ence .itis expected ct.ed no be ap Tr,.1. imit.ely is Th ss.}
<br />Vai"UPS are based on expected ornpa.ct: t'on :'.r::i`o t;.s# 1.:"Icompliance,
<br />with he: prE'V1::)us and ,i.ensiW."3as of, the ^G7rimact.ed
<br />soils near 93 Ctti'7'C:f.-nt of ttict;^.::.5(uim density,
<br />The intent of the foundation t.if§,'91..0771 is to balance the overall
<br />settlement ku less than ':. inch and 1 it itt the differential
<br />ntial
<br />s{sj.4.;Y7ryt.t-nt t(,, one-half of an inch:. 11 f:C;u ei i on
<br />k..11, ith� continuous footings should be a WAR= of 1.5 feet
<br />below the lowest si. adjacent finished grade aniJ 1.5 feet, 137 wirith,
<br />`Lise sa;.t: allowable bearing pressure is, calculated for t:he
<br />soil/bedrock in in C'4]:C4en, i.U,iditior, 1700 ,7C7kAnds per square
<br />'fact. These values are applicable far i.:ont3.nuitis :soot.in..g 2nly,
<br />no isolated footings ,?rbt`?uld tie a..1.t.%y"aol. If any fill is placed
<br />after .initial grading lot . o,le,tet> it mach be and
<br />inspected.
<br />The safe allowable lateral bearing pressure is, ca71i U....zIted to be
<br />.is' pcuL :ds per C.I,t.. ,. 'w T.o<)t Lot, the active ,.,,tas"', COO pou.-ons 1"Jer
<br />C,Lbio foot t for the passive case. The; r..t 'r -as-... conalition. is
<br />calculated s.,ulci'ted to be 5.3 psf. A value of 0.31 rn..#.y ';; t s e -d for ha
<br />C:oaf:'. icient of frionion .,ets7(4en t'he ., i. and cement no acrE,;,`e.
<br />Tlip following are .9t7`:}iJestions for lrt1E.. LC77 %5iC7C0. r(i'v, Ctl of thY
<br />n:oun.i<at}.t 'i system. Continuous las footingsgs Sh;J ld ns reinforced with
<br />M Y.<.i:ar as a minimum, two placed in the top ari,.! tha two in
<br />bottom. If Nsed, spread footings a] va le, I ea:r as utxl ° be
<br />reinforced Y.`ced :..a a similar manner. lila' slab -on -grade should be a
<br />TCfi7.,.xirmuTm ": 4.13 Anches thick and be reinforced with 1-3 reba r an 4
<br />l.i'ch Centers (both ways). Care must be taken to insure 11 e, meter
<br />is supp"'utt cl while t..",on rA::te+ l', tc i..il-J placeti, such that "...� will
<br />nor sag to the awt#»cm s _ the slab. kin° 1£%un lfa._....c and s,,,ab
<br />fs
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