Reliability analysis of rock slopes involving correlated nonnormals

被引：187

作者：

Low, B. K. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore

来源：

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES | 2007年 / 44卷 / 06期

关键词：

probability; rock slopes; correlation; Monte Carlo; response surface;

D O I：

10.1016/j.ijrmms.2007.02.008

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

A two-dimensional rock slope in Hong Kong and a three-dimensional hypothetical tetrahedral wedge are analyzed probabilistically using an intuitive and transparent constrained optimization approach for the first-order reliability method (FORM). The results are compared with Monte Carlo simulations. Simple procedures for incorporating truncated non-normal distributions in reliability analysis are described. The effects of statistical correlations on the computed reliability index are studied. The difference between probabilities of failure inferred from reliability index and from Monte Carlo simulations are investigated via the response surface method. It is shown that the efficiency of reliability-based approach can be combined with the robustness of Monte Carlo simulation. The meanings of reliability index and probability of failure are also discussed. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：922 / 935

页数：14

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