| 重力坝应力-渗流相互作用的无单元耦合分析 |
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| 引用本文： | 沈振中,陈小虎,徐力群. 重力坝应力-渗流相互作用的无单元耦合分析[J]. 岩土力学, 2008, 29(Z1): 74-78 |
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| 作者姓名： | 沈振中 陈小虎 徐力群 |
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| 作者单位： | 1. 河海大学 水利水电工程学院，南京 210098；2. 长江勘测规划设计研究院枢纽处，武汉 430010； 3. 长江勘测规化设计院 枢纽处，武汉 430010 |
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| 摘 要： | 应用两场交叉迭代解耦技术，建立了应力-渗流相互作用的无单元耦合分析计算模型。详细分析了东方红重力坝在不计应力-渗流耦合和考虑应力-渗流耦合两种情况下，正常蓄水时坝体的位移、应力和渗流位势分布的变化规律。分析表明，考虑耦合作用后，坝体的位移略小，但分布规律一致；坝体的水平正应力分布不同，垂直正应力变化较大，但分布规律一致；耦合作用条件下渗流对重力坝坝体应力的影响是不利的。计算成果符合一般规律。
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| 关 键 词： | 重力坝 无单元法 应力-渗流相互作用 耦合分析 |
| 收稿时间： | 2008-07-24 |
Coupled analysis of stress-seepage interaction for gravity dam by element-free method |
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| SHEN Zhen-zhong,CHEN Xiao-hu,XU Li-qun. Coupled analysis of stress-seepage interaction for gravity dam by element-free method[J]. Rock and Soil Mechanics, 2008, 29(Z1): 74-78 |
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| Authors: | SHEN Zhen-zhong CHEN Xiao-hu XU Li-qun |
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| Affiliation: | 1. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China; 2. Changjiang Institute of Survey, Planning, Design and Research, Wuhan 430010, China; 3. Changjing Institute of Survey, Planning, Design and Research, Wuhan 430071,China |
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| Abstract: | By the technique of decoupling with two-field iteration,a numerical analysis model is set up for solving the coupled problem of stress-seepage interaction by element-free method.The distribution laws of displacement,stress and seepage piezometric head of dam body and its foundation are analyzed in detail under the normal water level with and without when considering the stress-seepage interaction.It is shown that the displacement of dam under coupled condition is smaller than that of the not one,but their d... |
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| Keywords: | gravity dam element-free method stress-seepage interaction coupled analysis |
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