Stability evaluation of depth cutting slope in rock mass based on fuzzy probability method

LIU Zhang-jun; CHEN Fei; ZHOU Yi-hong

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Stability evaluation of depth cutting slope in rock mass based on fuzzy probability method

更新时间：2026-06-25

- Stability evaluation of depth cutting slope in rock mass based on fuzzy probability method
- Vol. 29, Issue S1, (2008)
- 作者机构：
  
  三峡大学土木水电学院,湖北,宜昌,443002
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU457
- Online First：15 April 2016，
  
  Published：2008
- 稿件说明：
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LIU Zhang-jun, CHEN Fei, ZHOU Yi-hong. Stability evaluation of depth cutting slope in rock mass based on fuzzy probability method[J]. 2008, 29(S1).
DOI：

LIU Zhang-jun, CHEN Fei, ZHOU Yi-hong. Stability evaluation of depth cutting slope in rock mass based on fuzzy probability method[J]. 2008, 29(S1). DOI：

摘要

边坡工程是一个动态的、模糊的、开放的复杂系统，影响边坡稳定性的因素复杂且具有随机性和模糊性，传统的分析方法难以对复杂边坡的稳定性作出符合实际的评价。运用模糊概率的基本原理，建立了岩质路堑深边坡稳定性评价的模糊概率模型。在此模型中，综合选取了边坡岩体质量系数SRQC、边坡结构系数SSC、坡高系数SHC、坡角系数SCC、工程因素影响系数EFEC等5个评价指标因子；同时将边坡稳定性评价等级划分为很不稳定、不稳定、基本稳定、稳定以及很稳定5个等级。利用模糊概率模型对20个典型的边坡工程进行了稳定性评价分析，结果表明：该方法具有明显的合理性和可靠性，为边坡工程的预测与防治提供了新的途径。

Abstract

Slope engineering is a dynamic

fuzzy

open and complicated system

and the factors which control and affect slope stability are random and fuzzy variables. It is difficult to evaluate the stability of complicated slopes by traditional analysis method. Based on the basic theory of fuzzy probability

the fuzzy probability model of stability evaluation of depth cutting slope is proposed. Some main control factors of rock slope

such as slope rock quality coefficient

slope structure coefficient

slope height coefficient

slope angle coefficient and engineering factor effect coefficient etc. are selected. At the same time

the slope stability grades are classified as the very instable

instable

basically stable

stable and very stable in the prediction model. 20 typical slope engineerings are performed by this model. The prediction results agree well with the practical records. It indicates that the fuzzy probability model is reasonable and effective to evaluate the stability of depth cutting slope in rock mass

and provides scientific basis for reducing and preventing of the instability of rock slope.

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Related Institution

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