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Rapid evaluation of the critical slip surface in slope stability problems
Author(s) -
Li K. S.,
White W.
Publication year - 1987
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.1610110503
Subject(s) - slip (aerodynamics) , robustness (evolution) , factor of safety , slope stability , safety factor , stability (learning theory) , computer science , iterative method , mathematical optimization , algorithm , structural engineering , mathematics , engineering , geotechnical engineering , biochemistry , chemistry , machine learning , gene , aerospace engineering
Abstract Existing approaches for locating the critical slip surfaces are briefly reviewed. A number of techniques and strategies are proposed whereby the efficiency and robustness of some of the existing approaches can be enhanced. A new solution scheme is also developed for rapid calculation of the factor of safety. The new solution scheme requires only one level of iterations in contrast to the conventional solution scheme which invoives two levels of iterations. It is also applicable to a variety of stability models. A new compound iterative procedure is developed whereby the factor of safety can be calculated to a high accuracy within a few iterations. This reduces greatly the total computer time required for locating the critical slip surfaces.