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成层介质中填埋场渗滤液水位的瞬态求解

柯瀚, 沈磊, 李育超

柯瀚, 沈磊, 李育超. 成层介质中填埋场渗滤液水位的瞬态求解[J]. 岩土工程学报, 2011, 33(8): 1204-1210.
引用本文: 柯瀚, 沈磊, 李育超. 成层介质中填埋场渗滤液水位的瞬态求解[J]. 岩土工程学报, 2011, 33(8): 1204-1210.
shu
KE Han, SHEN Lei, LI Yu-chao. Transient saturated depth of landfill leachate in layered drainage media[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(8): 1204-1210.
Citation: KE Han, SHEN Lei, LI Yu-chao. Transient saturated depth of landfill leachate in layered drainage media[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(8): 1204-1210.
shu

成层介质中填埋场渗滤液水位的瞬态求解  English Version

  • 1. 浙江大学岩土工程研究所，浙江 杭州 310058 ； 2. 软弱土与环境土工教育部重点实验室，浙江 杭州 310058

基金项目: 国家自然科学重点基金项目（ 50978229 ）；国家自然科学基金项目（ 10972195 ）
详细信息
    作者简介:

    柯 瀚 (1975 – ) ，男，浙江丽水人，教授，主要从事环境土工和土动力学方面研究。

  • 中图分类号: TU43

Transient saturated depth of landfill leachate in layered drainage media

  • 1. Geotechnical Research Institute, Zhejiang University, Hangzhou 310058, China; 2. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310058, China

摘要

    摘要
  • 摘要: 现代填埋场排水层或覆盖层设计时，对排水系统水位深度的估算大都针对稳定状态时的最大水位，对水位增长过程的模拟鲜有涉及。在扩展的 Dupuit 假定基础上推导了成层排水介质中瞬态水位计算方法，通过与稳态计算方法的对比，验证了方法的准确性。通过参数分析发现对双层排水系统来说，渗透系数减小到一定程度后，会导致水位的大幅增加，达到稳定的所需时间也越长。排水距离越长和坡度越小，达到最高水位也越滞后。合理设置排水距离和适当增加排水系统的坡度可以非常有效地控制水位深度。 复合排水材料对减少最大水位深度有着重要的意义。
    Abstract: To design the cover system or leachate collection system of a modern landfill, steady state solutions are usually used to analyze the maximum liquid head in the drainage system, but the increment procedure is rarely involved. Based on the extended Dupuit assumption, a computational solution is presented to calculate the transient liquid head. Compared with the results calculated by Ke Han (2005), the present method is shown to be more rational and accurate. By means of parameter analysis, it is found that in double drainage system the decrease of the permeability coefficient will cause the maximum liquid head to increase greatly, and the stable time will be longer. Reasonable drainage distance and increase of the slope will decrease the maximum liquid depth effectively. The application of the geocomposites will significantly reduce the maximum liquid depth of the drainage system.
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    • 参考文献(16)
  • [1] US Envir Protection Agency (USEPA). Soild Waste Disposal Facility Criteria; Final Rule. Federal Register, Part Ⅱ, Washington D C, 1991, 40CFR Parts 257 and 258.
    [2] Michigan Department of Enviromental Quality (MDEQ). Waste Management Division, Act 641 Rules. Lansing, Michigan, 1993.
    [3] MCENROE B M, SCHROEDER P R. Leachate collection in landfill ： steady case[J]. Journal of Environmental Engineering, ASCE, 1988, 114 (5): 1052 – 1062.
    [4] U S Envir Protection Agency (USEPA). Landfill and surface impoundments evaluation[S]. EPA/530/SW-869-C, Washington D C. 1983.
    [5] MCENROE B M. Steady drainage of landfill covers and bottom lines[J]. Journal of Environmental Engineering, ASCE, 1989, 115 (6): 1114 – 1122.
    [6] MCENROE B M. Maximum saturated depth over landfill liners[J]. Journal of Environmental Engineering, ASCE, 1993, 119 (2): 262 – 270.
    [7] GIROUD J P, GROSS B A, DARASSE J. Flow in leachate collection layers, steady-state[M]. Livermore Geosyntec Consultants Rep, 1992.
    [8] QIAN X. Estimation of maximum leachate head on landfill bottom liner[R]. Lansing, Mich: Michigan Dept of Environmental Quality, Waste Management Division, 1994.
    [9] QIAN X D, DONALD H Gray, KOERNER R M. Estimation of maximum liquid head over landfill barriers[J]. Journal of Geotechnical and Environmental Engineering, ASCE, 2004, 130 (5): 488 – 497.
    [10] 柯 瀚, 黄传兵, 陈云敏. 成层介质中填埋场渗滤液的最大饱和深度 [J]. 岩土工程学报, 2005, 27 (10): 1194 – 1197. (KE Han, HUANG Chuan-bing, CHEN Yun-min. Maximum saturated depth of landfill leachate in layered drainage media[J]. Chinese Journal of Geotechnical Engineering, 2005, 27 (10): 1194 – 1197. (in Chinese))
    [11] DEMETRACOPOULS A C. Overview of landfill bottom liner hydraulics[J]. Water Resour Bull, 1988, 24 (1): 49 – 56.
    [12] WONG J. The design of a system for collecting leachate from a lined landfill site[J]. Water Resources Research, 1977, 13 (2): 404 – 410.
    [13] KORFIATIS G P. DEMETRACOPOULS A C. Flow characteristics of landfill leachate collection systems and liners[J]. 1986, 112 (3): 538 – 550.
    [14] KORFIATIS G P, SEIDAS L, DEMETRACOPOULS A C. Experimental-mathematical investigations of the hydraulics of landfill leachage collection systems[C]// 3rd International Conference: Computational Methods and Experimental Measurements, Porto Carras, 1986.
    [15] 柯 瀚, 陈云敏. 填埋场复合排水系统中最高水位深度的计算 [J]. 岩土工程学报, 2008, 30 (2): 160 – 165. (KE Han, CHEN Yun-min. Maximum saturated depth of landfill in drainage system with geosynthetics [J]. Chinese Journal of Geotechnical Engineering, 2008, 30 (2): 160 – 165. (in Chinese))
    [16] HARR M E. Groundwater and seepage[M]. New York: McGraw-Hill Book Co, 1962: 210 – 226.
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  • 发布日期:  2011-08-14

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