| 非饱和土石坝渗流分析 |
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| 引用本文： | 赖小玲,刘印. 非饱和土石坝渗流分析[J]. 灾害与防治工程, 2008, 0(2) |
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| 作者姓名： | 赖小玲 刘印 |
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| 作者单位： | 三峡大学土木水电学院; |
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| 摘 要： | 传统的渗流分析主要考虑饱和区而忽略非饱和区内的渗流,本文基于饱和-非饱和渗流计算原理,采用有限元法考虑了非饱和区渗流的影响,并以各向同性均质坝和心墙土石坝为算例进行计算分析。算例表明,由于基质吸力产生的虹吸作用,使得浸润线上部的非饱和区内也存在着连续的水流,通过分析这种水流的特点,定性地得出其对土石坝渗流稳定性的影响。
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| 关 键 词： | 非饱和区 渗流 浸润线 基质吸力 |
Seepage Analysis of Earth-rock Dam of Unsaturated Soils |
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| Lai Xiaoling Liu Yin. Seepage Analysis of Earth-rock Dam of Unsaturated Soils[J]. Disaster and Control Engineering, 2008, 0(2) |
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| Authors: | Lai Xiaoling Liu Yin |
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| Abstract: | Traditional seepage analysis mainly focuses on the seepage of saturated areas without considering that of unsaturated areas.Based on the theory of saturated-unsaturated soil seepage,this paper took the influence of unsaturated seepage into account,and it also did the seepage finite element calculation and analysis for a certain isotropic homogeneous earth dam and a core embankment dam.The results showed that,owing to the influence of siphon resulting from matric suction,there was also continuous flow in the... |
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| Keywords: | unsaturated zone seepage saturation line matric suction |
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