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Gregg CM Interpretation Software 1.1., 2007 <br />6 Estimated permeability, 1(4BT (based on Normalized SBA) <br />(Lunne et al., 1997 and table below) <br />7 Equivalent SPT N6O, blows/ft Lunne et al. (1997) <br />(* ) = 8.5 1 -lk) <br />8 Equivalent SPT (DIt)Go blows/ft (Ni)60 = N60 CN, <br />where CN = (pa/a'vo)0,5 <br />9 Relative Density, Dr, (%) <br />Only SBL 5.6.7&8 <br />Dr2=Qm/CDr <br />Show 'N/A' in zones 1,2,3,4&9 <br />10 Friction Angle, 0% (degrees) <br />Only SBL 5,6,7&8 <br />tan *' = ili[log'99 + 0.29] <br />Show'N/A' in zones 1,2,3,4&9 <br />11 Young's modulus, Es Es= a qi <br />Only SBTn 5,6.7&8 Show 'N/A ' in zones 1,2,3,4 &9 <br />12 Small strain shear modulus, Go <br />a. Go = So (q, a'vo pa)'/3 For SBT. 3,6,7 <br />b. Go = Co qt For SBTn L 2,3& 4 <br />Show 'N/A ' in zones 8 &9 <br />13 Undrained shcar strength, su <br />Only SBTn |,2,3,4&9 <br />sU = (41 - avo) / Nkt <br />Show 'N/A' in zones 5,6,7&8 <br />14 Over Consolidation ratio, OCR OCR = kocr Qu <br />Only SBT„ 1.2.3.4 &9 Show ' N/A ' in zones 5,6,7&8 <br />SBT Zones SBTn Zones <br />The following updated and simplified SBT descriptions have been used in the <br />software: <br />1 sensitive fine grained 1 sensitive fine grained <br />2 organic soil 2 organic soil <br />3 clay 3 clay <br />4 clay & silty clay 4 clay & silly clay <br />5 clay & sitty clay <br />6 sandy silt & clayey silt <br />7 silty sand & sandy silt 5 silty sand & sandy silt <br />8 sand & silly sand 6 sand & silty sand <br />9 sand <br />10 sand 7 sand <br />Gregg Page 3 of4 8./28/2007