| 基于有限差分法的边坡稳定影响因素分析 |
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| 引用本文： | 周世良,王义山,魏建锋,陈熹.基于有限差分法的边坡稳定影响因素分析[J].重庆交通大学学报(自然科学版),2010,29(5). |
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| 作者姓名： | 周世良 王义山 魏建锋 陈熹 |
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| 作者单位： | 重庆交通大学,河海学院,重庆,400074;重庆交通大学,河海学院,重庆,400074;重庆交通大学,河海学院,重庆,400074;重庆交通大学,河海学院,重庆,400074 |
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| 基金项目： | 教育部科学技术研究重点项目(210176); 重庆市教委科技项目(KJ100426) |
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| 摘 要： | 首先探讨了有限差分法自身的误差,提出了合理的网格密度及边界条件;然后,通过与极限平衡法的比较,研究了剪胀角、抗拉强度、泊松比及弹性模量对边坡安全系数的敏感性以及对边坡变形特征的影响。研究表明:剪胀角、泊松比和弹性模量对边坡破坏时变形的影响较为明显,但弹性模量相对泊松比更为明显,抗拉强度较小时对边坡变形有影响。
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| 关 键 词： | 强度折减法 安全系数 剪胀角 抗拉强度 泊松比 弹性模量 |
Influence Factors of Slope Stability Based on the Finite Difference Method |
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| ZHOU Shi-liang,WANG Yi-shan,WEI Jian-feng,CHEN Xi.Influence Factors of Slope Stability Based on the Finite Difference Method[J].Journal of Chongqing Jiaotong University,2010,29(5). |
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| Authors: | ZHOU Shi-liang WANG Yi-shan WEI Jian-feng CHEN Xi |
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| Institution: | ZHOU Shi-liang,WANG Yi-shan,WEI Jian-feng,CHEN Xi(School of River & Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China) |
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| Abstract: | Firstly,the error of finite difference method is discussed,and then reasonable mesh density and boundary conditions are pointed out.Secondly,compared with the limit equilibrium method,the dilatancy angle,tensile strength,Poisson's ratio and elastic modulus have some effect on the sensitivity of safety coefficients and the deformation characteristics of the slope.Results of the research show that: the dilatancy angle has the most obvious effect on the safety coefficients of slope;when tensile strength is rel... |
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| Keywords: | strength reduction method safety coefficients the dilatancy angle tensile strength Poisson's ratio elastic modulus |
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