An Improved Slice Method for Stability Analysis of Slope

ZHANG Hong; FENG Xu; YANG Dong-mei; CAI Jiang-bi

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An Improved Slice Method for Stability Analysis of Slope

- An Improved Slice Method for Stability Analysis of Slope
- Bulletin of Soiland Water Conservation Vol. 24, Issue 1, Pages: 60-63(2005)
- 作者机构：
  
  1. 杨凌职业技术学院水利系, 陕西杨凌,712100
  2. 西北农林科技大学水建学院, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：
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- Published：2005
- 稿件说明：
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ZHANG Hong, FENG Xu, YANG Dong-mei, et al. An Improved Slice Method for Stability Analysis of Slope[J]. Bulletin of Soiland Water Conservation, 2005, 24(1): 60-63.
DOI：

ZHANG Hong, FENG Xu, YANG Dong-mei, et al. An Improved Slice Method for Stability Analysis of Slope[J]. Bulletin of Soiland Water Conservation, 2005, 24(1): 60-63. DOI：

摘要

圆弧条分法是土坡稳定分析常用方法之一

但该方法假定各土条稳定性相等且与整个土坡相等

这种假定存在一定的不合理性

属于不严密的刚体极限平衡法。以简单土坡为研究模型

将圆弧条分法加以改进:假定土条间传递水平内力

考虑土条稳定性不等时

研究各土条间的传力规律

提出土坡稳定状态的判别条件

分析并推导出土坡稳定情况下

计算条间力大小的理论公式;并按照分合性原则和滑动系数的重量加权平均原则

推导了由土条稳定系数计算土坡稳定系数的理论公式。

Abstract

The circular slices method is one of the normal method for analyzing stability of slope which assumed the stabilities of individual slice is equal and equaled to that of whole slope

and belongs to an imprecise limit equilibrium method of rigid body with some irrationality. With a simple slope as research model

the circular slices method is improved. Postulating the slices can transfer internal force each other and the stabilit ies of individual slice are not equal

the differentiating condition of slope stabilization states is put forward via studying the transmission principle of slices force interacted by each other

and the theory formula calculating interact ion forces of individual slices is deduced at a stable slope. Based on above

the theory formula calculating stability factor of whole slope from the stability factors of individual slice is also deduced according to the principle of disjoin- join and the principle of weight weighted average of sliding factors.

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