| 基于广义有效应力原理的混凝土坝分析 |
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| 引用本文： | 梁通,金峰. 基于广义有效应力原理的混凝土坝分析[J]. 水力发电学报, 2009, 28(2) |
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| 作者姓名： | 梁通 金峰 |
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| 作者单位： | 梁通,LIANG Tong(清华大学水沙科学与水利水电工程国家重点实验室,北京,100084;青海大学水电系,西宁,810016);金峰,JIN Feng(清华大学水沙科学与水利水电工程国家重点实验室,北京,100084) |
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| 摘 要： | 水对坝体和地基的作用力是分析混凝土坝和地基强度、稳定性时的主要荷载.本文在广义有效应力原理的基础上推导了扬压力和渗透力的表达式,并建立了相应的有限元格式.在混凝土坝的分析中,这种新的水荷载施加方式比现在的方法更加合理,具有普适性.研究表明,水荷载施加方法对坝体应力和位移有着明显的影响,同时,混凝土坝与岩基B值的不同,扬压力的大小也会发生变化.
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| 关 键 词： | 水工结构 扬压力 广义有效应力 混凝土坝 水荷载 |
Analysis on concrete dams based on the concept of generalized effective stress |
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| LIANG Tong,JIN Feng. Analysis on concrete dams based on the concept of generalized effective stress[J]. Journal of Hydroelectric Engineering, 2009, 28(2) |
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| Authors: | LIANG Tong JIN Feng |
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| Affiliation: | 1;2;1.State Key Laboratory of Hydroscience and Engineering;Tsinghua University;Beijing 100084;2.Department of Hydraulic and Hydropower Engineering;Qinghai University;Xining 810016 |
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| Abstract: | Water pressure is the main load for analysis of the deformation,stress and stability of concrete dams.Based on the generalized effective stress,the expressions of uplift pressure and seepage force are deduced and the corresponding FEM procedure is developed in this paper. The presented procedure is more reasonable and applicable than other existed procedures used in the analysis of concrete dams.The analysis results show that the applying procedures of water loads have significant impacts on the deformation... |
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| Keywords: | hydraulic structure uplift generalized effective stress concrete dam water load |
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