| 边坡稳定性分析的广义Bishop法 |
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| 引用本文： | 王军,谢桂华,李继祥.边坡稳定性分析的广义Bishop法[J].江苏科技大学学报(社会科学版),2009,23(4):297-300. |
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| 作者姓名： | 王军 谢桂华 李继祥 |
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| 作者单位： | 王军(江苏大学,理学院,江苏,镇江,212013);谢桂华(江苏大学,理学院,江苏,镇江,212013;中南大学,土木建筑学院,湖南,长沙,430075);李继祥(武汉工业学院,土木工程与建筑学院,湖北,武汉,430023) |
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| 基金项目： | 江苏大学高级人才启动基金资助项目，湖北省教育厅重大项目 |
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| 摘 要： | 鉴于简化B ishop法作为一种简单实用且精度较高的极限平衡方法却仅限于分析圆弧破坏的缺陷,提出将B ishop法应用于任意滑裂面的广义方法.基于极限平衡理论和简化B ishop法的简化条件,推导其用于一般滑裂面破坏的边坡安全系数计算公式.通过实例分析考证比较该法的精度,并提出取矩中心的确定方法,以保证竖向力简化假设下的精度,为土坡稳定性分析提供了一种简单通用的方法.
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| 关 键 词： | 简化Bishop法 极限平衡法 边坡 稳定性分析 |
Generalized Bishop method for slope stability analysis |
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| Institution: | Wang Jun, Xie Guihua , Li Jixiang ( 1. Faculty of Science, Jiangsu University, Zhenjiang Jiangsu 212013, China) ( 2. School of Civil Engineering and Architecture, Central South University, Changsha Hunan 430075,China) (3. School of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan Hubei 430023, China) |
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| Abstract: | The simplified Bishop method （SBM） is a simple and practical limit equilibrium method with the property of good precision, but it can only be used for the slopes with circular slip surface. In view of this, a new generalized method of SBM was proposed for any slip surface with arbitrary shape. Based on the limit equilibrium theory and simplified conditions of SBM, the calculation formula was deduced for slope stability analysis with any slip surface. The algorithm performance was tested and compared by some instances adopted by others. Furthermore, the moment center was determined to assure the precision under the simplified condition of vertical forces between slices. The method is simple and universal, and it may replace other limit equilibrium methods. |
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| Keywords: | simplified Bishop method limit equilibrium method slope stability analysis |
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