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' CPT: Soil Behavior Classification System <br /> IA 1 <br /> 100 - <br /> ::q 00 Y <br /> SOr f <br /> • r+ 11 Qcc sl <br /> or 4 <br /> 8 V2Z 11l 2 <br /> V <br /> 4 CF 10 ! 7 u -u - <br /> CD <br /> Cz i $ <br /> U cn 4 <br /> ,0 m <br /> C <br /> tj 3 <br /> S <br /> WM 1 <br /> 00 01 <br /> -02 0 0z 04 06 08 10 12 14 <br /> o <br /> Pore pressure parameter B„ <br /> 1~- <br /> CL 100 <br /> U 10 <br /> 12 11 <br /> 0- s <br /> � a <br /> CF 10 7 <br /> U O 6 Q` <br /> � 5 - <br /> L <br /> � 1 <br /> LO 4 3 <br /> (0 Q - <br /> C <br /> a <br /> U 1 <br /> 2 <br /> I ! 010 1 2 3 4 6 6 7 8 <br /> Friction ratio (%) <br /> 1 Sensitivefine e grained 7 Silty sand to sandy silt <br /> I 2 Organic material 8 Sand to silty sand <br /> 3 Clay 9 Sand <br /> 4 Silty clay to clay 10 Gravelly sand to sand <br /> 5 Clayey silt to silty clay 11 Very stiff fine grained* <br /> 6 Sandy silt to clayey silt 12 Sand to clayey sand* <br /> *Qverconschdated orcemented <br /> 10 <br /> IRobertson PK,Campanella,R G,Gillespie,D and Greig J(I 986)'Use ofpiezometer cone data <br /> Proceedings of the ASCE Specialty Conference lnSrtu 86 Use oflnSitu Tests in Geotechnical <br /> Engineering Blacksburg, 7263-80,American Society ofC)vil Engineers(ASCE) <br /> R 24 <br /> The Yellow Feld Book (Oi OOA) <br />