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CPT Interpretations <br /> Interpreted Description Equation Ref <br /> Parameter <br /> For(grIN)w<160: <br /> / ll3 <br /> CRR=93•I �q��SJ +0.08 <br /> CRR Cyclic Resistance Ratio(for M=7,5) 5 <br /> For <50.- <br /> CRR=0.833 <br /> 0.CRR=0.833•I (4��SJ3+0,05 <br /> Youngs Modulus based on the work by BaldL 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 /> a)OC Sands a- =3 .+O"k+r3.� <br /> Youngs b)Aged NC Sands 5 <br /> Modulus E c)Recent NC Sands where a„'=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 ah= Ko"(y,' with Ko assumed to be 0.5 <br /> normal stress and linearly interpolates between the two <br /> extremes provided in Baldi's chart. <br /> Ko Coefficient of lateral earth pressure at rest. K. =0.1.ry, a,l 5 <br /> ll ff J <br /> . Savannah River Site Specific Parameters <br /> Interpreted Description Equation Ref <br /> Parameter <br /> to=j(1,95—1ogln()2+(loglo Fr+ 1.78)2 jo.s <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 "(1,)2.31)+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 <br /> flagged as a soft zone <br /> FC=j(3.58—loglAtsf)) +(1.43+logro(RO) <br /> )1.9. <br /> For FC>140 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 /> qtsf is the non-normalized tip resistance in tsf <br /> RF is the iron-normalized friction ratio <br /> GREGO <br /> CPTSUMM-1.20C—Rev.02-07-31 <br />