摘要
与传统的安全系数法分析边坡稳定性相比,以概率统计为基础的考虑到岩土性质的变异性和不确定性的可靠度方法更为客观。针对黄延高速公路一个典型的路堑边坡工程,将空间随机场理论引入到边坡稳定可靠度分析中,构建基于传递系数法的功能函数,得到内摩擦角和粘聚力相关和不相关及不同方差折减系数情况下的破坏概率,获得了一些基本结论。
Comparing with the conventional safety coefficient method for analysis of cutting slope stability, the reliability method based on the probability statistics and taking the variability and uncertainty of the geotechnical nature is more objective. Aiming at a typical cutting slope project in Huangling---Yanan Expressway, this paper introduces the spatial random field theory into the reliability analysis of the cutting slope stability, establishes the functional functions based on the transfer coefficient method, obtains the probabilities of failure under conditions of the internal frictional angles interrelated and disrelated with the cohesive strength and different variance reduction coefficients, and draws some basic conclusions.
出处
《公路交通技术》
2009年第3期24-28,共5页
Technology of Highway and Transport
关键词
边坡稳定性
可靠度方法
随机场
方差折减函数
cutting slope stability
reliability method
random field
variance reduction coefficient
作者简介
张健（1980-），男，河南省新乡县人，硕士，工程师．
