Rock slope reliability analysis method considering non-Gaussian correlation random variables

Abstract

The invention provides a rock slope reliability analysis method considering non-Gaussian correlation random variables, and belongs to the field of geological engineering reliability analysis. The method comprises the following steps: analyzing composition factors of anti-sliding force and sliding force of the rock slope, and performing calculation; constructing a performance function of the rock slope; determining probability distribution information of the random variables; and calculating a reliable index of the rock slope. The core of the method is as follows: 1, the stress characteristics of the rock slope are fully considered, and reliability analysis is carried out based on the stress characteristics; and 2, design point iterative calculation of a first-order reliability method based on the Copula theory is directly put in a physical space, so that a visual and easily understood physical meaning is given to the iterative process, and meanwhile, the stability of the iterative process is remarkably enhanced. The breakthrough technology not only accurately meets actual requirements of geological engineering, especially slope reliability analysis, but also provides a solid and reliable technical backshield for rock slope engineering design.

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