Table VI, 



Reference Residual Pore Pressure Parameter, A 

 (Ladd and Lambe , 1963) 



Soil Type 



Normally consolidated 

 Clayey silt 

 Lean clay 

 Plastic clay 



Heavily overconsolidated 

 Plastic clay 



-0.1 to 0.0 

 0.1 to 0.2 

 0.2 to 0.3 



0.3 



Table VII. Parameters Used to Obtain Reference 

 Residual Pore Pressure, u , at Each Site 



pb 



Site 



K o 



A u 



600-Foot 







0-3 ft 



1.4 



0.15 



3-4 ft 



0.9 



0.15 



5-6 ft 



0.7 



0.15 



7-8 ft 



0.8 



0.15 



1200-Foot 



0.6 



0.2 



100-Foot 



0.6 



0.0 



17 



