| 岩质滑坡稳定性有限元分析 |
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| 引用本文： | 刘红帅,薄景山,耿冬青,吴兆营.岩质滑坡稳定性有限元分析[J].岩土力学,2004,25(11):1786-1790. |
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| 作者姓名： | 刘红帅 薄景山 耿冬青 吴兆营 |
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| 作者单位： | 1.中国地震局工程力学研究所, 黑龙江 哈尔滨 150080；2.中建国际建设公司，北京 100035 |
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| 基金项目： | 国家科技攻关-西部开发科技行动项目(No.2001BA091A37)。 |
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| 摘 要： | 目前国内外大多数规范中推荐或者强制性规定滑坡稳定性分析采用极限平衡法。由于极限平衡法本身的局限性，存在诸多不合理之处，如何对其进行改进使之更加合理已成为岩土工程中的重要课题之一。针对岩质滑坡存在明显的软弱滑动带的特点，提出了有限元计算过程中不同滑动带的处理方法，结合工程中常用的不平衡推力传递法，给出了滑坡稳定性的有限元分析方法，将其应用于芡草沱滑坡，并与基于刚体极限平衡原理的不平衡推力传递法的计算结果进行了比较，表明其计算方法可靠，可直接应用于实际工程。
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| 关 键 词： | 岩质滑坡 软弱滑动带 稳定性 有限元分析 |
| 文章编号： | 1000-7598-(2004)11-1786-05 |
| 收稿时间： | 2004-03-12 |
| 修稿时间： | 2004年3月12日 |
Rock landslide stability analysis by finite element method |
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| LIU Hong-shuai,BO Jing-shan,GENG Dong-qing,WU Zhao-ying.Rock landslide stability analysis by finite element method[J].Rock and Soil Mechanics,2004,25(11):1786-1790. |
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| Authors: | LIU Hong-shuai BO Jing-shan GENG Dong-qing WU Zhao-ying |
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| Institution: | 1. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China; 2. China International Construction Corp., Beijing 100035, China |
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| Abstract: | The limit equilibrium methods, recommended or prescribed compulsorily in many engineering codes at home and abroad, are used to evaluate rock landslide stability. Because of the localization of limit equilibrium, there are lots of inconsequence about them. Therefore, how to improve limit equilibrium methods is one of the most important tasks in geo-technical engineering. Considering obvious weak slip zone occurring within rock landslide, the authors bring forward the different slip zone analysis methods during the calculation of finite element, and present the method combining the finite element method with non-equilibrium push transmission method used often in engineering. The method applied is used to calculate Qiancaotuo landslide stability, whose result is compared to that of non-equilibrium push transmission method based on limit equilibrium theory of rigid body. The comparison indicates that the proposed method is reliable, and can be used direct in engineering. |
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| Keywords: | landslide weak slip zone stability finite element analysis |
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