| 基于强度折减技术的边坡稳定性及其影响因素分析 |
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| 引用本文： | 陈书生.基于强度折减技术的边坡稳定性及其影响因素分析[J].勘察科学技术,2009(3). |
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| 作者姓名： | 陈书生 |
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| 作者单位： | 三峡大学三峡库区地质灾害教育部重点实验室,湖北·宜昌,443002 |
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| 摘 要： | 为修正边坡稳定性分析中极限平衡法的缺点,引入基于强度折减技术的有限单元法.分别介绍了有限单元理论与强度折减法技术.失稳判据是分析边坡稳定性的关键问题,目前强度折减有限元法中主要有三种判据,同时得到边坡安全系数.通过算例,与传统极限平衡法计算结果相比较,结果表明基于强度折减技术的有限元法分析边坡稳定性及其影响因素敏感性是町行的,计算精度满足工程要求,为边坡的支护治理设计提供重要依据.
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| 关 键 词： | 稳定性分析 敏感性分析 失稳判据 强度折减法 有限单元法 |
Analysis of Slope Stability and Its Influential Factors based on Strength Reduction Technology |
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| Chen Shusheng.Analysis of Slope Stability and Its Influential Factors based on Strength Reduction Technology[J].Site Investigation Science and Technology,2009(3). |
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| Authors: | Chen Shusheng |
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| Affiliation: | Chen Shusheng (Key Laboratory of Geological Hazards on Three Gorges Reservoir Area of Ministry of Education,China Three Gorges University) |
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| Abstract: | FEM based on strength reduction technology is introduced in order to rectify the defect of analyze stability of slope with limit equilibrium method. The FEM theory and strength reduction technology are introduced respectively in the paper.The destabilizing criterion is the key role in analyzing stability of slope,and three destabilizing criterions for strength reduction FEM are elaborated,and the safety factor of slope can be obtained as well.The results through an example with strength reduction FEM are co... |
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| Keywords: | analysis of stability analysis of sensibility destabilizing criterion strength reduction method FEM |
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