Stability analysis of Zhaojiapo High Cut Slope based on
 improved first-order quadric moment method

WANG Hong-xing; WANG Guan; TANG Hui-ming

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Stability analysis of Zhaojiapo High Cut Slope based on improved first-order quadric moment method

更新时间：2026-06-25

- Stability analysis of Zhaojiapo High Cut Slope based on improved first-order quadric moment method
- Vol. 27, Issue S1, (2006)
- 作者机构：
  
  1. 中国地质大学(武汉) 工程学院
  2. 中国地质大学(武汉) 计算机学院,武汉,430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU457
- Online First：15 December 2006，
  
  Published：2006
- 稿件说明：
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WANG Hong-xing, WANG Guan, TANG Hui-ming. Stability analysis of Zhaojiapo High Cut Slope based on improved first-order quadric moment method[J]. 2006, 27(S1).
DOI：

WANG Hong-xing, WANG Guan, TANG Hui-ming. Stability analysis of Zhaojiapo High Cut Slope based on improved first-order quadric moment method[J]. 2006, 27(S1). DOI：

摘要

为了更客观和科学地评价斜坡的稳定性，采用结构可靠度中的改进一次二阶矩法来分析斜坡的稳定性，同时采用新的、更适于计算机编程的求可靠指标解的迭代方法，对三峡库区赵家坡高切坡第二段稳定性分析标明：（1）潜在滑动面1可靠指标和破坏概率均满足允许风险水平，稳定性程度较高，只需进行表面防护即可；（2）潜在滑动面2可靠指标和破坏概率均不满足允许风险水平，需要进行整体加固并辅以坡面防护；（3）稳定性系数与可靠度分析结果有良好的一致性。

Abstract

An improved first-order quadric moment method is used to analyze the stability of slope; and a new calculation method suitable to programming for computer is used to solve reliability index. And then the methods are used to analyze the reliability of stability of Zhaojiapo High Cut Slope in Three Gorges area. The analytical results show that the reliability index and failure probability in the first potential sliding plane can satisfy permissible risk level

that shows

it is stable; the reliability index and failure probability in the second potential sliding plane can not satisfy permissible risk level

thus it should be strengthened; and the stability factor has a good consistence with the results of reliability analysis.

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