J4  2011, Vol. 45 Issue (4): 688-694    DOI: 10.3785/j.issn.1008-973X.2011.04.017
 土木工程、建筑工程

1.浙江大学 软弱土与环境土工教育部重点实验室,浙江 杭州 310027; 2.嘉兴学院 土木工程系,浙江 嘉兴 314001;
3.中国水电顾问集团 华东勘测设计研究院, 浙江 杭州 310014
Time-domain analysis of variation of liquid head in
landfill’s drainage system
WAN Xiao-li1, LI Yu-chao1, KE Han1, CHEN Yun-min1, MEI Fu-liang2, YING Feng3
1. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310027, China;
2. Department of Civil Engineering, Jiaxing University, Jiaxing 314001, China; 3. East China Investigation and
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Abstract:

The infiltration of the leachate in a landfill varies with several factors such as rainfall and water content of waste. Aiming at the problem, a method to calculate the variation of the liquid depth over landfill liner in time was presented based on the extended Dupuit assumption. The results from the method approached the results from steady state solution under constant inflowrate. The presented formula was rational compared with the results tested by Korfiatis. The parameter analysis showed that the maximum liquid depth was proportional to the maximum distance of flow. The increase of the dimensionless slope of drainage layer can effectively decrease the maximum liquid depth, and a greater hydraulic conductivity can be specified to prevent the over-height of liquid head.

 : TU 478

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