| 边坡稳定的有限元可靠度分析 |
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| 引用本文： | 谭晓慧 王建国 刘新荣 张洪涛. 边坡稳定的有限元可靠度分析[J]. 重庆大学学报(自然科学版), 2006, 29(1): 102-104 |
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| 作者姓名： | 谭晓慧 王建国 刘新荣 张洪涛 |
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| 作者单位： | 合肥工业大学资源与环境工程学院,安徽,合肥,230009;合肥工业大学土建工程学院,安徽,合肥,230009;重庆大学,土木工程学院,重庆,400030 |
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| 基金项目： | 安徽省教育厅青年教师基金;安徽省水利厅科研项目;国家留学回国人员科研启动基金 |
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| 摘 要： | 在边坡的有限元分析中引入强度折减法求边坡的整体安全系数，在此基础上进行边坡的整体可靠度分析．这种方法不需对定值法的有限元分析程序作任何修改，无论是线性有限元问题还是非线性有限元问题都适用，且无需对各有限单元求单元的可靠指标，能一次性得出边坡的整体可靠指标，方便易用．并讨论了求导方法及可靠度分析方法对可靠指标计算结果的影响，指出了中心点法中功能函数型式选择的重要性，提出了验算点法中考虑参数间相关性时新的迭代方法．
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| 关 键 词： | 边坡 可靠指标 有限元 中心点法 验算点法 |
| 文章编号： | 1000-582X（2006）01-0102-03 |
| 收稿时间： | 2005-08-25 |
| 修稿时间： | 2005-08-25 |
Finite Element Reliability Analysis of the Stability of a Slope |
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| TAN Xiao-hui,WANG Jian-guo,LIU Xin-rong,ZHANG Hong-tao. Finite Element Reliability Analysis of the Stability of a Slope[J]. Journal of Chongqing University(Natural Science Edition), 2006, 29(1): 102-104 |
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| Authors: | TAN Xiao-hui WANG Jian-guo LIU Xin-rong ZHANG Hong-tao |
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| Affiliation: | 1. College of Resource and Environmental Engineering; 2. College of Civil Engineering, Hefei University of Technology, Hefei 230009, China; 3. College of Civil Engineering, Chongqing University, Chongqing 400030, China |
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| Abstract: | The whole reliability index of a slope is derived through using the strength reduction method in the finite element analysis, which can make use of the former finite element program and can be used to both linear and nonlinear finite element analysis. The affection of the evaluation of derivative and the selection of reliability analysis methods is discussed, which shows that it is very important to select the type of limit state function of the slope stability. A new iterafive formula, which can consider the correlation of fundamental parameters, is proposed for FORM, and the convergence is very well. |
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| Keywords: | slope reliability index finite element method FORM SORM |
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