| 砂土管涌机理的模拟试验研究 |
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| 引用本文： | 刘晓林,李娜,张家泽. 砂土管涌机理的模拟试验研究[J]. 水科学与工程技术, 2011, 0(5): 35-37 |
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| 作者姓名： | 刘晓林 李娜 张家泽 |
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| 作者单位： | 1. 河北工程大学水电学院,河北邯郸,056000
2. 河北省水利水电勘测设计研究院,天津,300250 |
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| 摘 要： | 对管涌机理进行了砂槽模型试验研究,观察并分析了管涌发生、发展的过程.试验现象表明,管涌破坏发生在透水层上部,且砂样内部的颗粒移动是从进水口处和管涌口处向中间不断扩展的.当水头变化后,砂样内部的渗流需要较长时间才能重新稳定.
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| 关 键 词： | 管涌 模型试验 机理 颗粒移动 |
Experimental Study on Piping by Sand-bank Model |
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| LIU Xiao-lin,LI Na,ZHANG Jia-zhe. Experimental Study on Piping by Sand-bank Model[J]. Water Sciences and Engineering Technology, 2011, 0(5): 35-37 |
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| Authors: | LIU Xiao-lin LI Na ZHANG Jia-zhe |
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| Affiliation: | LIU Xiao-lin1,LI Na2,ZHANG Jia-zhe2(1.College of Water Conservancy and Hydroelectric Power,Hebei University of Engineering,Handan 056000,China,2.Hebei Designing Institute of Water Resources and Hydropower,Tianjin 300250,) |
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| Abstract: | Sand-bank model tests were conducted to simulate piping processes.The whole development of piping are obseved and the mechanisms are analysed.The observed phenomenons of the test shows piping occurred at the top of permeabile layer.The migration of grains in the sand-bank model continually developed from the water inlet and piping hole to the middle.When the waterhead is changed,it needs a long time to stabilize the seepage. |
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| Keywords: | piping model test mechanism displacement of grain |
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