(a) Active curves 



(b) Passive curves 



Figure 5 .--Failure oui'Ves for infinite slope with water table at various depths. 

 (Assumed soil properties: o = 500 p.s.f., ^ - 10°, - 120 p.a.f., and 



= 80 p.o.f. Critical depths: = 8.70 ft., = 10.03 ft., z^ = 11.85 ft.). 



13 



