| 淋溪河水电站地下厂房开挖过程中材料敏感性的非线性有限元分析 |
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| 引用本文： | 孙毅,戴龙侠,范春竹,徐远杰.淋溪河水电站地下厂房开挖过程中材料敏感性的非线性有限元分析[J].岩土力学,2008,29(Z1):149-154. |
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| 作者姓名： | 孙毅 戴龙侠 范春竹 徐远杰 |
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| 作者单位： | 武汉大学,土木建筑工程学院,武汉,430072 |
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| 摘 要： | 根据淋溪河地应力实测值,应用多元线性回归方法获得了地下厂房区的初始地应力场,并在ABAQUS中实现了初始地应力的加载.考虑岩石节理,基于ABAQUS的UEL模块开发了界面单元子程序,在此基础上重点考察了地下厂房开挖过程中围岩应力场及位移场,对洞室围岩稳定性和材料敏感性进行了综合分析,结果表明淋溪河地下厂房洞室群围岩在各种分析工况下能维持稳定状态.
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| 关 键 词： | 地下厂房 参数敏感性 稳定 |
| 收稿时间： | 2008-07-24 |
Nonlinear finite element analysis of material sensibility in excavation process of underground pouerhouse of Linxi River Hydropower Station |
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| SUN Yi,DAI Long-xia,FAN Chun-zhu,XU Yuan-jie.Nonlinear finite element analysis of material sensibility in excavation process of underground pouerhouse of Linxi River Hydropower Station[J].Rock and Soil Mechanics,2008,29(Z1):149-154. |
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| Authors: | SUN Yi DAI Long-xia FAN Chun-zhu XU Yuan-jie |
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| Institution: | School of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, China |
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| Abstract: | According to the initial stress field of the Linxi River rock masses,and based on the multiveariate linear regression method,the initial stress field of rock mass is obtained;its loading is and carried out in the software of ABAQUS.Considering the batholithic joint,the interface element functional element program is developed based on ABAQUS-UEL.Nonlinear finite element analysis is used to simulate the excavation unloading.Variations of displacement and stress field in different stages as well as the deform... |
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| Keywords: | ABAQUS |
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