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垃圾填埋场污染物击穿竖向防渗帷幕时间的影响因素分析及设计厚度的简化计算公式

詹良通, 刘伟, 曾兴, 陈云敏

詹良通, 刘伟, 曾兴, 陈云敏. 垃圾填埋场污染物击穿竖向防渗帷幕时间的影响因素分析及设计厚度的简化计算公式[J]. 岩土工程学报, 2013, 35(11): 1988-1996.
引用本文: 詹良通, 刘伟, 曾兴, 陈云敏. 垃圾填埋场污染物击穿竖向防渗帷幕时间的影响因素分析及设计厚度的简化计算公式[J]. 岩土工程学报, 2013, 35(11): 1988-1996.
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ZHAN Liang-tong, LIU Wei, ZENG Xing, CHEN Yun-min. Parametric study on breakthrough time of vertical cutoff wall for MSW landfills and simplified design formula for wall thickness[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(11): 1988-1996.
Citation: ZHAN Liang-tong, LIU Wei, ZENG Xing, CHEN Yun-min. Parametric study on breakthrough time of vertical cutoff wall for MSW landfills and simplified design formula for wall thickness[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(11): 1988-1996.
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垃圾填埋场污染物击穿竖向防渗帷幕时间的影响因素分析及设计厚度的简化计算公式  English Version

  • 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 310058; 2. 中国能源建设集团广东省电力设计研究院,广东 广州 510663

基金项目: 国家高新技术发展计划（863）计划项目（2012AA062601）
详细信息
    作者简介:

    詹良通（1972- ），男，教授，博士生导师，主要从事非饱和土力学、环境岩土工程和边坡工程等方面的教学与科研工作。E-mail: zhanlt@zju.edu.cn。

  • 中图分类号: TU47

Parametric study on breakthrough time of vertical cutoff wall for MSW landfills and simplified design formula for wall thickness

  • 1. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310058, China; 2. Guang Dong Electric Power Design Institute, China Engrgy Engineering Group Co., Ltd., Guangzhou 510663, China

摘要

    摘要
  • 摘要: 为了解中国第一代垃圾填埋场中防渗帷幕的服役性能及其影响因素,以苏州七子山填埋场地质条件为例,以COD作为代表性污染物,在前期现场勘查基础上建立了有限差分计算模型,对防渗帷幕被污染物击穿时间的影响因素进行了计算分析,并基于Ogata解析解给出了防渗帷幕击穿时间和设计厚度的简化计算公式。模拟和分析结果表明：场地地质条件对嵌入式防渗帷幕击穿时间影响不十分显著；帷幕上下游水头差、帷幕渗透系数、阻滞因子和厚度对嵌入式防渗帷幕的击穿时间有显著影响,击穿时间与上下游水头差、帷幕渗透系数、阻滞因子、以及帷幕厚度的平方近似呈线性关系；扩散系数对嵌入式防渗帷幕击穿时间的影响不可忽略。
    Abstract: In order to investigate the performance of vertical cutoff wall for a simple dump landfill, a finite difference model is set up on the basis of the geological condition of the Qizishan landfill in Suzhou. The breakthrough time of vertical cutoff wall by the contaminant of COD is analyzed considering different materials and design parameters. The parametric study shows that cross hydraulic head, wall permeability, retarding factor and design thickness are the primary parameters to affect the breakthrough time of the cut off wall being keyed into an aquitard layer. The effect of geological condition on the keyed-in cut off wall is relatively insignificant. The influence of diffusion coefficient can not be neglected, especially for the condition of low cross hydraulic head.
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    • 参考文献(23)
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出版历程
  • 收稿日期:  2012-12-03
  • 发布日期:  2013-11-19

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