Critical Slip Surface Search Methods in SLIDE
Year : 2002
Since the release of SLIDE, we at Rocscience have been very impressed at the range of problems to which SLIDE has been applied.
We have seen an amazing variety of models, from quite simple, to very complex, which users have successfully analyzed using SLIDE.
However, one trend we have also noticed, is that users do not always carry out the critical slip surface search, as thoroughly they should be doing. In particular:
1. Users do not always take advantage of the wide range of search methods and techniques which are available in SLIDE.
2. Users sometimes incorrectly apply searching techniques, or use inappropriate search methods for the problem they are trying to analyze.
The result is that the most critical slip surfaces are not always located.
When we consider:
1. the importance and monetary value of most slope stability analyses,
2. the relatively LARGE amount of time and effort involved in assembling the input data required for a slope stability analyses,
3. the relatively SMALL effort involved, for the user to carry out a thorough critical slip surface search, given the very powerful, but easy to use tools provided in SLIDE,
the user should always make every effort to ensure that they have performed the critical slip surface search as thoroughly as possible.
The purpose of this article, is to:
1. Discuss some general principles which the user should keep in mind, while carrying out a critical slip surface search in SLIDE
2. Point out some specific problems and issues which are encountered by users, and discuss ways in which to improve or correct their searching techniques.
3. Point out certain features and capabilities of the search methods in SLIDE, which users may not be aware of, or may not take advantage of.