COMPUTER ANALYSIS OF GENERAL SLOPE STABILITY PROBLEMS

Siegel, Ronald A., MSCE, Purdue University, May _975. Computer Analysis of General Slope Stability Problems. Major Professor: C. W. Lovell. A computer program, named STABL, for performing limiting equilibrium analyses by the method of slices for general slope stability problems has been developed. A discussion of previously available theories and programs precedes the presentation of the model of stability analysis used in this research and its computer simulation. The program can handle slope profiles having multiple slope ground surfaces. Any arrangement of subsurface soil types having different so^l properties can be specified. Pore pressures may be related to a steady state flow domain, related to the overburden, or specified within zones. Surcharge boundary loads and pseudo-static earthquake loadings are also considered. Three trial shear surface generators have been developed to generate surfaces either of circular shape, of general irregular shape, or of specified character such as sliding blocks. Restrictions may be imposed to generate only surfaces of interest. Graphical output provides means for checking input and for quick evaluation cf results. Print character plots are