Stability analysis of high rock slope based on meticulous description of complex structure

DU Peng-zhao; LIU Jian; HAN Zhi-qiang; XU Hua

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Stability analysis of high rock slope based on meticulous description of complex structure

更新时间：2026-06-25

- Stability analysis of high rock slope based on meticulous description of complex structure
- Vol. 34, Issue S1, (2013)
- 作者机构：
  
  1. 中国科学院武汉岩土力学研究所,武汉,430071
  2. 湖北省随岳高速公路管理处,武汉,430050
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU472
- Online First：09 June 2014，
  
  Published：2013
- 稿件说明：
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DU Peng-zhao, LIU Jian, HAN Zhi-qiang, et al. Stability analysis of high rock slope based on meticulous description of complex structure[J]. 2013, 34(S1).
DOI：

DU Peng-zhao, LIU Jian, HAN Zhi-qiang, et al. Stability analysis of high rock slope based on meticulous description of complex structure[J]. 2013, 34(S1). DOI：

摘要

用数值方法对岩质高边坡进行稳定性分析时，描述岩体结构对的精细程度会影响分析结果，但常见的有限单元法程序仍难以对复杂节理岩体进行精细建模。为解决这一问题，将结构面网络模拟与离散单元法相结合，在UDEC软件中，利用FISH语言编写网络模拟程序，依据结构面统计资料和结构面分级，实现对复杂岩体结构的精细描述。以某大型水电工程边坡为例，在对岩体结构进行精细描述的基础上，采用离散元强度折减法对边坡进行稳定性分析。通过与极限平衡法和一般离散元结果的对比，表明基于复杂岩体结构精细描述确定的边坡潜在滑动面和安全系数是合理的，为复杂岩质边坡破坏模式和稳定性的分析提供了新的途径。

Abstract

In a numerical method for stability analysis of high rock slope

the analysis results will be influenced by the meticulous extent of description for rock mass structure. However

it is difficult to model meticulously for complex jointed rock mass in finite element method at present. In order to solve the problem

discontinuity network modeling and discrete element method(DEM) are combined used in this essay. Based on statistic data and classification of discontinuity

the meticulous description of complex rock mass structure is realized by network simulation program in UDEC. By means of constructing a fine geological model

strength reduction method based on DEM is presented and applied to the stability analysis of a high slope of a hydropower station. Compared the above results with LEM and general DEM

the numerical results show that the potential sliding surface and safety factor of slope are reasonable

with the usage of meticulous description of complex rock mass structure. Consequently

it will provide a new approach for analyzing the failure mode and stability of complex rock slopes.

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