Several ultimate bearing capacity and settlement computation 

 techniques exist. The ultimate bearing capacity is usually calculated by 

 Terzaghi's equations. 4 For long footings at or below the sediment surface 

 under general shear conditions, the ultimate bearing capacity equation has 

 the form 



q u = cN c + 7 b-^ + 7dN q 



where q u = ultimate bearing capacity 



c = cohesion 



7 = sediment unit weight 



b = footing width 



d = effective overburden depth 



N c , N 7 , N q = dimensionless bearing capacity factors 



By various modifications of this equation, expressions for the local shear 

 case for long footings, for round footings, and for square footings are derived 

 to fit the particular problem being analyzed. 



A method of computing settlement for fairly large footings on 

 cohesive, normally consolidated material is presented by Hough 5 and is 

 accomplished by solution of the equations 



AHj = H -CL_ logA + ^E 



1 + e y \ p 



n 



TS = 2 AH; 



i=1 



where AH| = change in layer thickness 

 H = layer thickness 

 CI = compression index 

 e = void ratio 

 Ap = stress change 

 p = initial stress 



