| 双层堤基管涌溃堤砂槽模型试验及渗流场特点研究 |
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| 引用本文： | 刘昌军,丁留谦,吴梦喜,姚秋玲,孙东亚.双层堤基管涌溃堤砂槽模型试验及渗流场特点研究[J].水利水电技术,2007,38(2):40-43. |
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| 作者姓名： | 刘昌军 丁留谦 吴梦喜 姚秋玲 孙东亚 |
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| 作者单位： | 1. 中国水利水电科学研究院,北京,100038
2. 中国科学院,力学研究所,北京,100080 |
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| 基金项目： | 水利部科技创新项目;水利部科技攻关项目 |
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| 摘 要： | 对双层堤基管涌溃堤进行了砂槽模型试验,对模型试验的流量和时间比尺进行了分析和讨论。通过有限元数值模拟,研究了管涌溃堤过程中渗流场变化的特点,分析并解释了砂槽模型试验中出现的难以理解的现象,对管涌发展机理和渗流场变化特点有了更深入的认识。
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| 关 键 词： | 有限元分析 渗流场 双层堤基 管涌 模型试验 |
| 文章编号： | 1000-0860(2007)02-0040-04 |
| 修稿时间： | 12 19 2006 12:00AM |
Model test on piping of two-stratum dike foundations with flume and study on its seepage field characteristics |
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| LIU Chang-jun,DING Liu-qian,WU Meng-xi,YAO Qiu-ling,SUN Dong-ya.Model test on piping of two-stratum dike foundations with flume and study on its seepage field characteristics[J].Water Resources and Hydropower Engineering,2007,38(2):40-43. |
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| Authors: | LIU Chang-jun DING Liu-qian WU Meng-xi YAO Qiu-ling SUN Dong-ya |
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| Affiliation: | 1. China Institute of Water Resources and Hydropower Research, Beijing 100035, China; 2. Institute of Mechanics, Chinese Academy of Science, Beijing 100080, China |
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| Abstract: | In-door flume test was conducted to simulate piping under one-stage high hydraulic head to induce dike breach. Discussions are carried out in the aspects of seepage flow quantity and temporal scale effects. FEM analysis is performed to study the characteristics of seepage field changes in the test. Analystical results give proper explanations on the phenomenons in the test that are difficult to be understood by ordinary knowledges. This will promote the recognizations on piping mechanisms and the characteristics of seepage field changes. |
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| Keywords: | FEM analysis seepage fields two-stratum dike foundations piping flume test |
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