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CPT Interpretations <br /> interpreted <br /> Parameter Description Equation Ref <br />' For(9crN)a< 160 <br /> 3 <br /> CRR=93• 1000 f 9`," - +008 <br /> ( ) <br />' CRR Cyclic Resistance Ratio(for M=7 5) For(gcuv)cs<50 5 <br /> 3 <br /> CRR=0 833. (q.V +005 <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 appronate type for the site from <br /> 1 <br /> a)OC Sands �_ =3• ,+6b+Crp <br /> Youngs b)Aged NC Sands <br />' Modulus E c Recent NC Sands 5 <br /> ) where rr„=vertical effective stress <br /> = <br /> Each sand type has a family of curves that depend on ah horizontal effective stress <br /> mean normal stress The program calculates mean and ah= Ko*aV with Ko assumed to be 0 5 <br /> normal stress and linearly interpolates between the two <br /> extremes provided in Baldi's chart <br /> Ke Coefficient of lateral earth pressure at rest Ko :-0 1•C9,-a,Q� 5 <br />' d <br />' • Savannah River Site Specific Parameters <br /> Interpreted Description <br /> ParameterEquation Ref <br /> !C=((195-1o9raQ)2+(1o9ro Fr+1 78J2 f s <br /> Ic Ic based on normalized data at the Savannah River Site,developed by Frank Syms and SGS Where Q is the normakzed tip resistance 10 <br /> And Fr is Me nonnalized fnctron ratio <br /> FC=(531 (�1 1 2-")+961 <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= j(3 58-1ogao(gt4) +(143+lo9ro(Ro) <br /> For FC> 100 and qt< 15 tsf the material is <br /> FC Fines Content directly from non-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 fiction ratio <br /> I <br /> REGO <br /> CPTSI.fMhp_1 20C-Rev 02-07-31 �� <br />