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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     
时域条件下填埋场导排系统水位变化规律
万晓丽1, 李育超1, 柯瀚1, 陈云敏1, 梅甫良2, 应丰3
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
Design Institute, CHECC, Hangzhou 310014, China
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摘要:

针对填埋场渗滤液入渗量随降雨量、垃圾含水量等因素不断变化这一问题,在扩展的Dupuit假定基础上推导导排系统瞬态水位计算方法.当入渗量恒定时,采用该方法计算的最终结果和稳态计算结果趋于一致.通过与Korfiatis等[10]的室内实验结果比较,该方法是合理和相对准确的.通过参数分析发现,对于排水系统来说,排水距离越长,达到稳定水位所需要的时间越长,适当增加排水系统的坡度可以非常有效地控制水位深度;在渗透系数减小到一定程度后,会导致水位的大幅增加.

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.

出版日期: 2011-05-05
:  TU 478  
基金资助:

国家自然科学基金资助项目(50978229);浙江省科技计划资助项目(2007C3038).

通讯作者: 李育超,男,讲师.     E-mail: liyuchao@zju.edu.cn
作者简介: 万晓丽(1983—),女,湖北襄阳人,硕士生,从事环境岩土工程和基础工程的研究.E-mail:wanxl@zju.edu.cn
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引用本文:

万晓丽, 李育超, 柯瀚, 陈云敏, 梅甫良, 应丰. 时域条件下填埋场导排系统水位变化规律[J]. J4, 2011, 45(4): 688-694.

WAN Xiao-li, LI Yu-chao, KE Han, CHEN Yun-min, MEI Fu-liang, YING Feng. Time-domain analysis of variation of liquid head in
landfill’s drainage system. J4, 2011, 45(4): 688-694.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.04.017        http://www.zjujournals.com/eng/CN/Y2011/V45/I4/688

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