Reliability analysis method for earth-rock aggregate slope based on probability statistics

doi:10.16265/j.cnki.issn1003-3033.2018.05.024

Abstract

Abstract: In order to describe the practical state of a slope,and to evaluate the stability of a slope more accurately,a reliability analysis method of earth-rock aggregate slope based on probability statistics was worked out.Dual variability of the slope was considered,including uncertainty of the average strength and spatial variation of the strength of a slope.The reliability of a slope was calculated and evaluated with the Monte Carlo method and CDEM.The failure criteria were proposed in qualitative and quantitative way based on the relative displacement between monitoring points.Through the analysis of a typical earth-rock aggregate slope,the reliability of the slope was obtained.The result shows that deformation and failure of a slope are well dependent on the distributive property of the strength,and the correlation between the strength distribution of the material and the stability of a slope can be found with the reliability analysis method based on probability statistics.

Key words: earth-rock aggregate slope, reliability, probability statistics, dual variability, continuum-discontinuum element method (CDEM)

CLC Number:

X935

ZHANG Jianping, ZHOU Dong. Reliability analysis method for earth-rock aggregate slope based on probability statistics[J]. China Safety Science Journal, 2018, 28(5): 141-146.

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