| 岩溶对黄壁庄水库副坝坝基渗流场的影响分析 |
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| 引用本文： | 王恩志,杨刚,李昂,侯鹏.岩溶对黄壁庄水库副坝坝基渗流场的影响分析[J].地球与环境,2005,33(3):15-18. |
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| 作者姓名： | 王恩志 杨刚 李昂 侯鹏 |
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| 作者单位： | 1. 清华大学水利水电工程系,北京,100084
2. 中国地质环境监测院,北京,100081 |
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| 基金项目： | 国家自然科学基金;清华大学校科研和教改项目 |
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| 摘 要： | 黄壁庄水库副坝曾多次出现管涌流沙和塌坝现象,其影响因素诸多,而基岩中溶洞和破碎带的存在是重要影响因素之一。为此,选择溶洞坝段进行三维渗流场的数值模拟,分析了溶洞的存在与否对坝基渗流场的改造作用以及对坝体渗透坡降的影响,并时设置防渗墙的必要性进行讨论,为除险加固措施的制订提供参考。
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| 关 键 词： | 渗流场 溶洞 防渗墙 水力梯度 |
| 文章编号： | 1672-9250（2005）03-0015-04 |
| 收稿时间： | 2005-04-22 |
| 修稿时间： | 2005-07-15 |
IMPACTS OF THE KARSTIFICATION ON THE SEEPAGE FLOW IN SECONDARY DAM BASE OF HUANGBIZHUANG RESERVOIR |
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| WANG En-zhi,YANG Gang,LI Ang,HOU Peng.IMPACTS OF THE KARSTIFICATION ON THE SEEPAGE FLOW IN SECONDARY DAM BASE OF HUANGBIZHUANG RESERVOIR[J].Earth and Environment,2005,33(3):15-18. |
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| Authors: | WANG En-zhi YANG Gang LI Ang HOU Peng |
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| Abstract: | The phenomena of sand piping and dam collapse have occurred many times in the past years. There are many factors leading to such phenomena. It is out of question that the existence of karst and fractured zone in the rock foundation is one of the important factors. So the dam segment of karst in rock foundation was selected for the analysis of seepage flow in the dam base. On the hasis of numerical modeling of three-dimensional seepage flow, the impacts of kars karstification on the seepage flow in the dam base and on the seepage gradient in the dam body were analyzed, and the necessity of setting impervious wall was discussed, which helps assist the decision-making of measures for reinforcement of the dam. |
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| Keywords: | seepage flow karst imperviou wall hydraulic gradient |
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