| 深覆盖层地基碎石土心墙堆石坝的渗流特性分析 |
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| 引用本文： | 唐瑜莲,朱岳明,丁兵勇.深覆盖层地基碎石土心墙堆石坝的渗流特性分析[J].三峡大学学报(自然科学版),2008,30(6). |
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| 作者姓名： | 唐瑜莲 朱岳明 丁兵勇 |
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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. 中国水电顾问集团,华东勘测设计研究院,杭州,310014 |
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| 基金项目： | 科技部中奥科技合作基金资助项目
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| 摘 要： | 结合两种不同地质特性深覆盖层上的碎石土心墙堆石坝,采用求解有自由面渗流场的改进结点虚流量全域迭代法进行二维稳定渗流场有限元计算分析.着重进行深覆盖层渗透系数敏感性分析和混凝土防渗墙的渗控作用研究,评价坝基可能渗流特性变化对渗流场的影响,并为两种不同坝基条件下的渗控设计方案提供理论依据.
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| 关 键 词： | 渗流特性 深覆盖层 心墙堆石坝 渗透系数 |
Research on Seepage Characteristics of Core Wall Rockfill Dam on Deep Overburden Foundation |
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| Tang Yulian,Zhu Yueming,Ding Bingyong.Research on Seepage Characteristics of Core Wall Rockfill Dam on Deep Overburden Foundation[J].Journal of China Three Gorges University(Natural Sciences),2008,30(6). |
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| Authors: | Tang Yulian Zhu Yueming Ding Bingyong |
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| Institution: | Tang Yulian1 Zhu Yueming1 Ding Bingyong2 (1.College of Water Conservancy & Hydropower Engineering,Hohai Univ.,Nanjing 210098,China,2.East China Investigation & Design Institute,CHECC,Hangzhou 310014,China) |
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| Abstract: | Combined with two core wall rock-fill dams on deep overburden layers of different geological properties,the finite element analysis of 2D stable seepage field is performed based on improved nodal virtual flux of global iteration method to solve seepage free surface.Sensitivity analysis of permeability coefficient of overburden layer and seepage control effect of concrete cutoff wall is emphatically studied in order to evaluate changes of seepage field in various possible seepage characteristics of dam found... |
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| Keywords: | seepage characteristics overburden layer core wall rockfill dam permeability coefficient |
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