| 基于安全系数法的岩土工程稳定性评价方法研究 |
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| 引用本文： | 王冬林,李宗利.基于安全系数法的岩土工程稳定性评价方法研究[J].中国农村水利水电,2012,0(1):129-133. |
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| 作者姓名： | 王冬林 李宗利 |
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| 作者单位： | 西北农林科技大学水利与建筑工程学院,陕西杨凌,712100 |
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| 摘 要： | 岩土工程的稳定性有限元分析是以岩土材料的物理、力学特性参数为基础，根据岩体中的应力或变形信息寻找岩体边坡的破裂面来评价岩体的稳定状态。有限元分析中采用不同的屈服准则会得出不同的安全系数，本文采用Mohr-Coulomb 准则分析岩体中各部位的稳定程度，通过理论分析推导Mohr-Coulomb参数表征的点安全系数表达式，形成针对岩土结构稳定性分析的安全系数法，建立岩土工程稳定评价的量化指标；以岩土工程中的均质边坡和黄土隧洞为例，使用ADINA有限元分析软件进行边坡稳定性分析和土质隧洞破坏机理的研究，探讨了基于摩尔-库伦准则的安全系数计算方法在边坡以及土质隧洞稳定性研究中的可行性，对于岩土工程稳定评价方法研究有新的参考价值。
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| 关 键 词： | 岩土工程 稳定分析 安全系数 实例分析 |
| 收稿时间： | 2011-08-23 |
| 修稿时间： | 2011-09-02 |
Study of Stability Analysis of Geotechnical Engineering Based on Safety Factor Method |
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| WANG Dong-lin,LI Zong-li.Study of Stability Analysis of Geotechnical Engineering Based on Safety Factor Method[J].China Rural Water and Hydropower,2012,0(1):129-133. |
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| Authors: | WANG Dong-lin LI Zong-li |
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| Institution: | (College of Water Conservancy and Architectural Engineering,Northwest Agricultural and Forestry University,Yangling 712100,Shaanxi Province,China) |
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| Abstract: | The finite element analysis of geotechnical engineering stability is based on the physical and mechanical parameters of geological materials, then according to the stress and deformation to looking for the fracture surface of the slope and evaluate the rockmass stable state. Finite element analysis choosing different yield criterions will draw the different safety factors, in this essay, using Mohr-Coulomb yield criterions and basic idea of the safety factor in the engineering to analyse the security of Each part in rock mass and define the point safety factor expression, this way the safety factor method for rockmass structure stability analysis and the quantity standard of the rockmass stability are developed. With soil slope and tunnel for example, using ADINA to analyse the stability analysis of slope and the failure mechanism of soil tunnel, explore the feasibility of the safety factor method in stability studies of slope and tunnel, which accords a new reference value for the stability analysis of geotechnical engineering. |
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| Keywords: | geotechnical engineering stability analysis safety factor example analysis |
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