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CPT Interpretations <br /> • interpreted Description Equation Ref <br /> Parameter <br /> For(q�,N),,,< 160: <br /> s <br /> CRR=03 0(�� <br /> +0.08 <br /> 1000 <br /> CRR Cyclic Resistance Ratio(for M=7.5) 5 <br /> For(qc,Ajcs<50: <br /> (L(%., <br /> CRR=0.833ks +0.05 <br /> 00 <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 approdate type for the site from: <br /> i <br /> a)OC Sands a; =3 a „+Cr"+or' <br /> Youngs b)Aged NC Sands 5 <br /> Modulus E c)Recent NC Sands where m,'=vertical effective stress <br /> ah'=horizontal effective stress <br /> Each sand type has a family of curves that depend on <br /> mean normal stress. The program calculates mean and Oh= Ko`6� with Ko assumed to be 0.5 <br /> normal stress and linearly interpolates between the two <br /> extremes provided in Baldi's chart. <br /> Ka Coefficient of lateral earth pressure at rest. K, =Ole Cq'-r.01 5 <br /> l <br /> Savannah River Site Specific Parameters <br /> Interpreted Description Equation Ref <br /> Parameter <br /> !c=[(1.95-log,oQ)2+(log,,,Fr+ 1.78)210.5 <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 qq<15 tsf the material is 10 <br /> Site Ic parameter,developed by Frank Syms and SGS flagged as a soft zone <br /> FC=j{3.58-1ogjo(gts0) +(1.43+logyo(RO) <br /> I <br /> For FC>100 and q,<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 friction ratio <br /> t <br /> AREG <br /> CPTSUMM-1.200-Rev.02-07-31 <br />