APPENDIX 



Symbols Used in This Report 



A, a, a' = parameters in equations for failure surfaces; 



B, b, b' = parameters in equations for failure surfaces; 



c = cohesive strength; 



k = parameter in equations for failure surfaces; 



L = length of transition from active to passive stress states, measured 

 parallel to ground slope; 



l^^ = length of active failure surface measured parallel to ground slope for 

 case when phreatic surface coincides with ground surface; 



l^p = length of passive failure surface measured parallel to ground slope for 

 case when phreatic surface coincides with ground surface; 



l2^ = length of active failure surface measured parallel to ground slope for 



case when phreatic surface lies between ground surface and critical depth; 



l^p = length of passive failure surface measured parallel to ground slope for 



case when phreatic surface lies between ground surface and critical depth; 



l^^ = length of active failure surface measured parallel to ground slope for 

 case when phreatic surface lies below critical depth; 



l^p = length of passive failure surface measured parallel to ground slope for 

 case when phreatic surface lies below critical depth; 



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