Three-dimensional slope stability analysis based on ellipsoidal sliding body and simplified JANBU method

LI Liang; CHI Shi-chun; ZHENG Yung-ming

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Three-dimensional slope stability analysis based on ellipsoidal sliding body and simplified JANBU method

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- Three-dimensional slope stability analysis based on ellipsoidal sliding body and simplified JANBU method
- Vol. 29, Issue 9, (2008)
- 作者机构：
  
  1. 大连理工大学海岸与近海工程国家重点实验室,大连,116024
  2. 中国水利水电科学研究院岩土工程研究所,北京,100044
  3. 香港理工大学土木与结构工程系，香港九龙
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU454
- Online First：03 August 2013，
  
  Published：2008
- 稿件说明：
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LI Liang, CHI Shi-chun, ZHENG Yung-ming. Three-dimensional slope stability analysis based on ellipsoidal sliding body and simplified JANBU method[J]. 2008, 29(9).
DOI：

LI Liang, CHI Shi-chun, ZHENG Yung-ming. Three-dimensional slope stability analysis based on ellipsoidal sliding body and simplified JANBU method[J]. 2008, 29(9). DOI：

摘要

采用一般椭球体模拟三维土坡的滑动体，利用三维简化JANBU法计算其安全系数，该法假定各个条柱底面的滑动方向在水平面上的投影相等，借此可用一个变量来表达各个底滑面的滑动方向，简便易行。此外，综合借鉴粒子群优化算法和和声算法的优点，提出了改进的粒子群算法，并利用对2个三维土坡的最危险滑动体进行了搜索，与已有结果进行了对比分析，表明方法是可行有效的。

Abstract

The ellipsoidal sliding body is described by using eleven-variable equation

the new version of simplified three-dimensional JANBU method

in which only one variable is used to represent the sliding angles along all the column bases

is presented and is adopted to calculate the safety factor related to given ellipsoidal sliding body; in the case of determining critical sliding body of soil slopes

a new optimization algorithm which takes good advantages of particle swarm optimization and harmony search is presented. Two actual slopes in three dimensions are studied using the proposed method in order to demonstrate the effectiveness and applicability of the proposed method. Comparative studies have shown that the proposed method is applicable to three-dimensional slope stability analysis.

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