工程地质学报Issue(6)：1221-1226,6.DOI:10.13544/j.cnki.jeg.2014.06.028
基于结构面网络模拟的节理岩质边坡可靠性分析
JOINT NETWORK SIMULATION BASED RELIABILITY ANALYSIS FOR JOINTED ROCK SLOPES
杨超 1徐光黎 2申艳军 3叶雪峰1
作者信息
- 1. 浙江省交通规划设计研究院 杭州 310006
- 2. 中国地质大学 武汉 工程学院 武汉 430074
- 3. 西安科技大学建筑与土木学院 西安 710054
- 折叠
摘要
Abstract
The random distribution characteristic of discontinuities is always rarely considered when analysing the stability of jointed rock slope.Joint network simulation can simulate the random distribution of discontinuities.So this method is applied to analysing the stability of jointed rock slopes.Firstly,the joint network simulation method is used to establish the joint network model of the slope.Then the result is combined with shear strength reduction method to calculate the safety factor of the slope.Subsequently,many joint network simulations and their relative safety factors are used to analyse the reliability of the slope.The result of a real project shows the following.(1 )The stability of the rock slope is mainly controlled by the quantity and combination relationship of discontinuities.The more is the discontinuities' quantity and persistence,the lower is the slope's safety factor.(2)The average safety factor of the slope is 3.06 and its probability of failure is 5%,which indicate the good reliability of the slope.This result is in accordance with the real condition of the slope.The analysis method in this paper mainly considers the random distribution of discontinuities,and it presents a new way to analyse the stability of jointed rock slope.关键词
节理岩质边坡/结构面网络模拟/强度折减法/可靠性分析/失效概率Key words
Jointed rock slope/Joint network simulation/Shear strength reduction method/Reliability analysis/Probability of failure分类
建筑与水利引用本文复制引用
杨超,徐光黎,申艳军,叶雪峰..基于结构面网络模拟的节理岩质边坡可靠性分析[J].工程地质学报,2014,(6):1221-1226,6.
