Study on stability of horizontal bedded rocky slopes in
Three Gorges Reservoir area

SHEN Qiang; CHEN Cong-xin; WANG Ren

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Study on stability of horizontal bedded rocky slopes in Three Gorges Reservoir area

更新时间：2026-06-25

- Study on stability of horizontal bedded rocky slopes in Three Gorges Reservoir area
- Vol. 26, Issue S2, (2005)
- 作者机构：
  
  中国科学院武汉岩土力学研究所,武汉,430071
- 作者简介：
- 基金信息：
- DOI：
  CLC： O319.56
- Online First：16 December 2005，
  
  Published：2005
- 稿件说明：
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SHEN Qiang, CHEN Cong-xin, WANG Ren. Study on stability of horizontal bedded rocky slopes in Three Gorges Reservoir area[J]. 2005, 26(S2).
DOI：

SHEN Qiang, CHEN Cong-xin, WANG Ren. Study on stability of horizontal bedded rocky slopes in Three Gorges Reservoir area[J]. 2005, 26(S2). DOI：

摘要

通过对三峡库区一大型巨厚水平层状岩质边坡的稳定性调查，认为受边坡软弱层面、节理以及岩性组合的影响，水平层状岩质边坡可能存在以下4种破坏方式：崩塌错落、顺层滑动、切层滑动和复式滑动。利用Sarma法结合最优化方法对顺层滑动和切层滑动2种方式进行了稳定性计算，其计算结果表明，三峡水库蓄水及大桥建成后，右岸边坡稳定性变差，有可能发生切穿泥质粉砂岩的切层滑动，必须采取处理措施；而库水位的变化是影响本区边坡稳定性最重要的因素。

Abstract

According the stability analysis of a large scale huge thick horizontal bedded rock slope in the Three Gorges Reservoir area

it is recognized that because weak surfaces

joints and the character compages of rock slope

there exist four failure modes of the horizontal bedded rock slope: collapse falling

bedding slip

cutting slip and composite slip. The stability of the bedding slip and cutting slip are calculated by using Sarma method and optimization method. The calculated results indicate that the stability of the slope is decreased after the Three Gorges Reservoir storage and the bridge building up; and cutting slip would be occurred in the slope. Some control measures must be taken. And the reservoir water level variation is the most important factor affect the stability of slope in the Three Gorges Reservoir area.

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