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CPT Interpretations <br /> Interpreted Description Equation Ref <br /> Parameter <br /> For(ge}njp< 960: <br /> 3 <br /> CRR=93•(Lq,tH ks +0.08 <br /> 1000 ) <br /> CRR Cyclic Resistance Ratio(for M=7.5) 5 <br /> For(garnr)o<50: <br /> CRR 0,833• �q`'�ks +0.05 <br /> 1000 <br /> Youngs Modulus based on the work by Baldi. There are <br /> three types of sands considered in this technique. The Mean normal,stress is evaluated from: <br /> user selects the approriate type for the site from: <br /> 1 <br /> a)OC Sands 6- 3• "+6.+cr <br /> Youngs b)Aged NC Sands 5 <br /> Modulus E c)Recent NC Sands where a,'=vertical effective stress <br /> 6r;=horizontal effective stress <br /> Each sand type has a family of curves that depend on <br /> mean normal stress. The program calculates mean and ah= Ko'aY with Ko assumed to be 0.5 <br /> normal stress and]!nearly interpolates between the two <br /> extremes provided in Bald is chart. <br /> K, Coefficient of lateral earth pressure at rest. K.=0.1•(q'—¢�J 5 <br /> a. J <br /> I <br /> Savannah River Site Specific Parameters <br /> Interpreted Description Equation Ref <br /> Parameter <br /> Ic=((1.95—logioQ)2+(logto Fr+1,78)'f-' <br /> Ic Ic based on normalized data at the Savannah River Site; Where, Q is the normalized tip resistance 10 <br /> developed by Frank Syms and SGS And Fr is the normalized friction ratio <br /> FC=(.5.31*(ld2.31)+9.61 <br /> FC Fines content based on the normalized Savannah River For FC> 100 and qt< 15 tsf the material is 10 <br /> Site Ic parameter,developed by Frank Syms and SGS flagged as a soft zone <br /> FC=((3.58—10g,o(gtst)) +(1.43+logto(Rf)) <br /> )1.a. <br /> For FC> 100 and qt<15 tsf the material is <br /> FC Fines Content directly from noir-normalized data at the flagged as a soft zone 11 <br /> Savannah River Site;developed by Frank Syms and SGS <br /> Where: <br /> gtsf is the non-normalized tip resistance in tsf <br /> Rf is the non-normalized friction ratio <br /> GREGG <br /> CPTSUMM-1.20C—Rev.02-07-31 <br />