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Gregg Cfr Interpretation Software 1.1., 2007 <br />8 Friction Ratio, Rf (%)Rf = (fs/qb x 100% <br />9 Soil Behavior Type (non-normalized), SBT see note <br />10 Unit weight, y (pcf or kN/rni)based on SBT, see note <br />11 Total overburden stress, cv (tsf)Cvo =y Z <br />12 Insitu pore pressure, uo (tsf)110 -Yw (z-Zw) <br />13 E ffective overburden stress, aU (tsf)4 = avo - Uo <br />14 Nonnalized cone resistance, Qu Qtr= (q, - avo) / C'vo <br />15 Normalized friction ratio, Fr (94)Fr =fs / (qi - avo) x 10090 <br />16 Normalized Pore Pressure ratio, Bq Bq =u- Uo/ ((11 - avo) <br />17 Soil Behavior Type (normalized), SBTn see note <br />18 SBTo Index, Ic see note <br />19 Normalized Cone resistance, Qin Crl varies with [c) see note <br />20 Estimated permeability, ks (cm/sec or ft/sec) see note <br />21 Equivalent SPT No, blows/ft see note <br />22 Equivalent SPT (Nt)60 blows/ft see note <br />23 Estimated Relative Density, Dr, (%)see note <br />24 Estimated Friction Angle, f, (degrees)see note <br />25 Estimated Young's modulus, Es Osf)see note <br />26 Estimated small strain Shear modulus, Go (tsf) see note <br />27 Estimated Undrained shear strength, su (tsf)see note <br />28 Estimated Undrained strength ratio SU/Gv' <br />29 Estimated Over Consolidation ratio, OCR see note <br />Notes: <br />1 Soil Behavior Type (non-nonnalized), SBT Lunne et al. (1997) <br />listed below <br />2 Unit weight, 7 either constant at 11.9 pcfor based on Non-normalized SBT <br />(Lunne et al., 1997 and table below) <br />3 Soil Behavior Type (Normalized), SBTn Lunne et at. (1997) <br />4 SBTn index, Ic Ic= ((3.47 - log Qi,)2 + Clog Pr + 1 -22)2)0.5 <br />5 Normalized (Jone.resistance, Qtn (n varies with Ic) <br />Qu, = ((qi - avo)/pa) (pa/(a'vo)n and recalculate Ic, then iterate: <br />When Ic< 1.64,n = 0.5 (clean sand) <br />When Ic> 3.30,n = 1.0 (clays) <br />When 1.64 < Ic < 3.30,n= (Ic- 1.64)0.3 + 0.5 <br />Iterate until the change in n, An < 0.01 <br />Gregg Page 2 of 4 8./28/2007 <br />SL Rvcd 2019.01.21