期刊
ACTA GEOTECHNICA
卷 10, 期 2, 页码 255-262出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11440-013-0262-3
关键词
Analytical techniques; Diffusion; Geomembranes; Geosynthetics; Landfill; Liners; Organic contaminants
资金
- Zhejiang University from the Natural Science Foundation of China [51278452, 51008274, 50538080, 51010008]
- National Basic Research Program of China (973 program) [2012CB719806]
- National Science Fund for Distinguished Young Scholars [50425825]
- Zhejiang Provincial public industry research special funds [2011C21061]
- Zhejiang Provincial Natural Science Foundation of China [Y5100402]
This paper presents an analytical solution for modeling the one-dimensional diffusion of organic contaminants through a composite liner, comprising a geomembrane, a geosynthetic clay liner and a soil liner system. The Laplace transformation technique is used to obtain a dimensionless analytical solution to the diffusion of organic chemicals through the triple-layer composite liners. The solution presented is verified against two alternative numerical solutions. The analytical solution is then adopted to provide a series of graphical design charts which can assist with the assessment and design of composite liners. Design examples are included for a composite liner having a geomembrane, a geosynthetic clay liner and a soil liner system. The proposed analytical solution provides a practical and relatively simple tool to assist with the design of composite liners and the validation of numerical models.
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