Modified Monte Carlo techniques by rotating slip segments for searching general critical slip surface(Ⅰ): random angle of rotation

ZHANG Lu-yu; ZHANG Jian-min

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Modified Monte Carlo techniques by rotating slip segments for searching general critical slip surface(Ⅰ): random angle of rotation

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- Modified Monte Carlo techniques by rotating slip segments for searching general critical slip surface(Ⅰ): random angle of rotation
- Vol. 27, Issue 11, (2006)
- 作者机构：
  
  清华大学水电系岩土工程研究所,北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU413.6+2
- Online First：04 December 2013，
  
  Published：2006
- 稿件说明：
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ZHANG Lu-yu, ZHANG Jian-min. Modified Monte Carlo techniques by rotating slip segments for searching general critical slip surface(Ⅰ): random angle of rotation[J]. 2006, 27(11).
DOI：

ZHANG Lu-yu, ZHANG Jian-min. Modified Monte Carlo techniques by rotating slip segments for searching general critical slip surface(Ⅰ): random angle of rotation[J]. 2006, 27(11). DOI：

摘要

对Abdallah I. Husein 等人提出的Monte Carlo搜索技术进行了改进：（1）增加了若干条几何合理性条件；（2）增加了防止节点重合的机制；（3）通过确定滑面段旋转角的上、下限，使其能够适用于上凸型滑面；（4）增加了节点数调整机制，以使搜索到的临界滑面更光滑。算例分析表明，改进后的算法不但保持了原方法的优点，而且更实用，临界滑面的自动搜索变得更为可靠与稳定，并将此算法纳入到自主研发的ZSlope边坡稳定分析软件中。

Abstract

Based on the algorithm advised by Abdallah I. Husein and his classmates

some improvements have been made as follows: (1) adding several conditions of geometry rationality; (2) developing a technique by controlling the range of slip segments rotation to prevent two adjacent vertices of a slip surface from approaching each other; (3) making the algorithm to be suitable for slip surfaces that are convex upward; (4) adding the changeable vertex count mechanism of a slip surface during the searching procedure in order to make the critical slip surface more smooth. The results show that the modified algorithm is more practical feasibility and stability to aim at searching the critical slip surface

preserving the advantages of the original algorithm. The algorithm is also adopted by the slope stability analysis software named ZSlope developed by the authors.

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