| 砂土中粘土夹层对入渗过程影响的试验分析 |
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| 引用本文： | 卢修元,魏新平,邱玥,倪福全.砂土中粘土夹层对入渗过程影响的试验分析[J].灌溉排水学报,2009(6). |
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| 作者姓名： | 卢修元 魏新平 邱玥 倪福全 |
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| 作者单位： | 四川大学水利水电学院;四川农业大学信息与工程技术学院; |
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| 基金项目： | 四川农业大学青年科技创新基金(00530300); 四川农业大学引进人才基金资助(00530301) |
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| 摘 要： | 对水在高渗透性砂内入渗过程中,其内部的低渗透性粘土夹层对入渗过程的影响进行了室内垂直一维入渗试验。通过分析定性得出粘土夹层对入渗过程的影响体现为减渗作用,表现为粘土夹层将均质粗砂中的非线性入渗过程变为夹层内的线性入渗过程,使夹层范围的入渗为一个具有较小入渗率和较小湿润锋推进速度的稳渗阶段。
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| 关 键 词： | 粘土夹层 入渗过程 减渗 |
Effect of Clay Interlayer on Infiltration Process in Sand |
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| LU Xiu-yuan,WEI Xin-ping,QIU Yue,NI Fu-quan.Effect of Clay Interlayer on Infiltration Process in Sand[J].Journal of Irrigation and Drainage,2009(6). |
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| Authors: | LU Xiu-yuan WEI Xin-ping QIU Yue NI Fu-quan |
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| Institution: | LU Xiu-yuan1,2,WEI Xin-ping1,QIU Yue1,NI Fu-quan2 (1.College of Hydraulic and Hydroelectric Engineering,Sichuan University,Chengdu 610065,China,2.Institute of Information and Engineering,Sichuan Agricultural University,Yaan 625014,China) |
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| Abstract: | This paper deals with the effect on infiltration process of clay interlayer in sand by lab experiments on water infiltration into sand column that contains a clay interlayer.By analyzing experiment data,a conclusion is drawn that the effect is infiltration reduction,which can be explained as following: clay interlayer converts the non-linear process in sand into linear process of infiltration in clay interlayer.This results in the infiltration process of clay layer to be a stable infiltration stage with a s... |
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| Keywords: | clay interlayer infiltration process infiltration reduction |
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