| 基于稳定性耦合分析法的余王扁边坡稳定性分析 |
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| 引用本文： | 王宇,苏生瑞,余宏明.基于稳定性耦合分析法的余王扁边坡稳定性分析[J].煤田地质与勘探,2010,38(5):50-54. |
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| 作者姓名： | 王宇 苏生瑞 余宏明 |
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| 作者单位： | 1. 中国地质大学工程学院, 湖北 武汉 430074; |
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| 摘 要： | 边坡稳定性分析的极限平衡法与有限元法(FEM)的耦合分析法，首先利用有限元法分析获得边坡岩土体的整体应力场，在此基础上利用极限平衡法进行边坡的稳定系数求解。该方法既反映了边坡的稳定和变形之间的关系，又克服了极限平衡法与有限元法的不足，使二者的优点相互补充，获得的稳定系数基于极限平衡理论体系，可以同传统的稳定系数评价体系接轨。以西安市雁塔区余王扁削坡后边坡为例，用稳定性耦合分析法对其进行了稳定性分析，并把分析结果与各种极限平衡法的计算结果进行了比较，证明了耦合分析方法的可靠性和可行性。
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| 关 键 词： | 边坡稳定性分析 耦合分析 极限平衡法 有限元法 稳定系数 |
| 收稿时间： | 2010-03-11 |
Yu Wang Bian slope stability analysis based on coupled analysis method |
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| WANG Yu,SU Shengrui,YU Hongming.Yu Wang Bian slope stability analysis based on coupled analysis method[J].Coal Geology & Exploration,2010,38(5):50-54. |
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| Authors: | WANG Yu SU Shengrui YU Hongming |
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| Institution: | 1. School of Engineering, China University of Geosciences, Wuhan 430074, China;2. School of Geological Engineering and Surveying, Chang'an University, Xi'an 710054, China |
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| Abstract: | A method combining the limit equilibrium method with the elastoplastic finite element method(FEM) is proposed to analyze the slope stability problems. Firstly the finite element anlysis was used to obtain the overall stress field of a slope, and then on the basis of this, the limit equilibrium method was used to obtain the stability factors.This method not only reflects the slope stability and deformation, but also overcome the deficiencies between the limit equilibrium method and the finite element method, the advantages of the two methods are complemented to each other, the stability factors are based on limit equilibrium theory, and able to roll to the traditional stability factor evaluation system. Yu Wang Bian cutted slope in Xi'an Yanta District was taken as example, by the coupled analysis of the stability analysis, the stability factors obtained from the methods were compared with a variety of limit equilibrium method, the results prove that the coupled analysis method is reliable and feasible. |
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