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.._ ��11YY��YY�NIY����_ � .� . . _ <br /> I <br /> I <br />� <br /> I� <br /> L <br /> I • <br />� <br /> �, - ( f <br /> 5teven:; , 7'hompson �� I:unyan, luc . i- 1 �'��)-h�� <br /> Novuribcr 19 , 197G L'n;;� 'I'a.c, <br /> L� L�- <br /> Q = S-F , S� <br /> �<h e r.e rI ',� , r i • 1•: I. <br /> So = L A• L� <br /> Q = uLCimaCe pile ccipaciCy, pounds , <br /> Gy = raCed h�mmcr energy, fooL-pounds , <br /> dcli vcrcd cncr���' � , �,ouC . �) <br /> a = l�aruner eificicncy = raCe ener� y <br /> z <br /> a = cross secLional arca �t pi].e Ci.u, inchcs , <br /> L = l�n�th ot- pile , feeC , <br /> � = modulus of elasL-iciC}' of pile :a�Cerial , ��si , <br /> S = final seL , peneL-ralio�l per blu�.�, feel- . ' <br /> �•]e recnc,mend Lhat a facLor oL safety ol' 2 . � ue applied Lo Cl�e � <br /> ulLi.maCe pile capacity Co acl:i.e��e a design vulue . Upon deCor!i;- <br /> inatioii of the pile length ar.d cross-secCion L-o li� dri.ven, �nci <br /> i_he pile hammer to be used, we can pruvide a set of cur�.es for <br /> use in deLermining pile capaciLies . <br /> As discussed in our. Ocl'oUer 11 , 1974 repor�� , meClla�le gas was <br /> emitted during drilling oL- Lhe L'hree exploraLory holes . Tlie <br /> conL-ractor should be made a�,�are oi Chis condiLion1alilculGrlsary <br /> pr.ecautions should be L-�l:en tn ProtecL- �aorlcmen , 1� Y <br /> durin� �,�cldin^, operations . PiuChcr , �ac l�comr.icnd LIz,�L ei �'c:n�ed <br /> cirea be providcd b�lo�o Chc+ l�asc uf the sCrucCurc Lo prevc ,�t- t�1� <br /> accumulaCion ot meL-hanc �as bcncaCll thc slabs and ;i possil>I-c <br /> c.;nlosi.on. <br /> �dc CrusL' Liiis i.nformc�C:ion is sati.sl.acLnr}� for ; u�u� cui-r� r�� r:c.:c.ls . <br /> Sinccre'_y, ��/�C%C/t0 '' <br /> fIART-CRO':1S�R & ASSOCIA'fL•'S , I�'C.. ,��� !�. <br /> /� �o.�. �F Y+ASi�j�� SF;i <br /> � C%�i���� (� � ti`v�� T//�p�T ��O � � <br /> , ` �� V'_S l�� � <br /> , U�'�L`� �.. �.It��'l�J���� \ 1� _ , 1 <br /> ProLessional Lngineer � e/ y+'s-'s � �� <br /> Z�p .tirr,rsrief�: �4`J��,, <br /> �)CC: �lllt _F�,;- .. ._—`\�6 '�� <br /> — �J(i;,L �/� <br /> �' -.,..�iiii <br /> �k <br /> ! ' <br /> � <br /> _rr _. . . -- <br />