Development of simplified discrete limit analysis for three-dimensional slope stability problem

概要

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In this study, the new simplified discrete limit analysis technique for a three-dimensional slope stability problem is proposed, using the divided column as a three-dimensional element of RBSM (Rigid Body Spring Model). This approach is as easy as to use the slice method currently used in the conventional slope stability analysis and it helps to develop a planning of very effective slope protection work taking into account displacement of each column. In this model, a sliding surface constitutes a square, since a column is square. Then, the concept of the isoparametric element is introduced to define this surface. As a result of analyzing a three-dimensional slope stability problem using this model, we proved that the safety factor of a landslide can be calculated, such as a traditional approach, and it became possible to predict a motion of the whole body of the slope from displacement direction of each column.
公益社団法人日本地すべり学会の論文