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, 1 CPT-2 11-09- 96 13 40 Ps 10 <br /> DEPTH DEPTH TIP CORR TIP FRICTION FR RATIO PORE PR DIFF P P RATIO INC INTERPRETED N <br /> meters feet Qc tsf Qt tsf Fs tsf Fs1Qc a Pw psi (Pw-Ph)/9c : I deg SOIL TYPE SPT <br /> 22 05 72 3 168 8 168 9 12 45 7 38 9 0 0 26 12 1 very stiff fine grained ( ) 156 <br /> 22 10 72 5 163 0 163 2 13 65 8 37 8 8 0 26 12 1 very stiff fine grained (#) 156 <br /> 22 15 72 7 157 4 157 5 13 65 8 67 8 3 0 24 12 1 very stiff fine grained ( ) 155 <br /> 22 20 72 8 164 3 164 4 13 65 8 31 7 7 0 20 12 1 very stiff fine grained ( ) 150 <br /> 22 25 73 0 149 7 149 8 12 59 8 41 7 8 0 22 12 1 very stiff fine grained O 142 <br /> 22 30 73 2 130 5 130 6 10 83 8 30 8 4 0 28 12 1 <br /> 22 35 73 3 139 1 139 2 ? ' 8 6 0 27 12 1 <br /> 22 40 73 5 148 8 148 9 ? 1 7 9 0 22 12 1 ' ' <br /> Soil interpretation reference Robeitson & Campanella-IM, based on 60% hammer efficiency and 15 m sliding data average <br />