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Volume 35 Issue 11
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References
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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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

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  • Received Date: December 03, 2012
  • Published Date: November 19, 2013
    Graphical Abstract
    • 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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    • References (23)
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