| 基于ANSYS的有限元强度折减法求边坡安全系数 |
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| 引用本文： | 柳林超,梁波,刁吉.基于ANSYS的有限元强度折减法求边坡安全系数[J].重庆交通大学学报(自然科学版),2009,28(5):899-901,910. |
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| 作者姓名： | 柳林超 梁波 刁吉 |
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| 作者单位： | 1. 重庆交通大学,土木建筑学院,重庆400074
2. 重庆市渝通公路工程总公司,重庆,400060 |
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| 摘 要： | 介绍了一种基于有限元的强度折减法的边坡稳定性分析方法,讨论了该方法的基本原理、安全系数的物理意义、屈服准则和流动法则的选用及边坡破坏的判据等。算例通过不断减小边坡强度参数黏聚力和内摩擦角,得到新的一组黏聚力和内摩擦角,再输入软件计算至不收敛,此时的折减系数就是边坡的安全系数。计算结果显示,用ANSYS计算边坡的安全系数有一定的实用性和可靠性。
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| 关 键 词： | 有限元 强度折减 边坡稳定 安全系数 |
Using FEM Strength Reduction Method Based on ANSYS to Solve Slope Safety Coefficients |
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| LIU Lin-chao,LIANG Bo,DIAO Ji.Using FEM Strength Reduction Method Based on ANSYS to Solve Slope Safety Coefficients[J].Journal of Chongqing Jiaotong University,2009,28(5):899-901,910. |
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| Authors: | LIU Lin-chao LIANG Bo DIAO Ji |
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| Institution: | LIU Lin-chao1,LIANG Bo1,DIAO Ji2(1.School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China,2.Chongqing Yutong Highway Engineering Corporation,Chongqing 400060,China) |
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| Abstract: | A kind of FEM strength reduction method to analyze the slope stability is introduced.The basic principle of this method,the physical connotation of the safety coefficients,the selection of yield criterion and flow rule,and the damage criterion of slope and so on are discussed.A new group of cohesion and internal friction angles are obtained by decreasing the slope strength coefficients,including the cohesion and internal friction angles in the case study.And then these coefficients are input to the computer... |
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| Keywords: | FEM strength reduction slope stability safety coefficients |
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