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A platform for research: civil engineering, architecture and urbanism
Comparison of Hydraulic Conductivity Test Methods for Landfill Clay Liners
Accurately measuring the in situ hydraulic conductivity (permeability) of a clay liner is a major factor in the construction of landfill containment systems. Laboratory and large-scale field test methods are often utilized on test pads constructed prior to placement of the production liner to determine the hydraulic conductivity of the clay. While these test methods provide reliable results, the time required to run the tests can be lengthy. To avoid potential problems, it is important to be able to correlate laboratory and large-scale field test results with more rapid field test methods. This paper discusses in detail the standard laboratory and large-scale field permeability test methods that are commonly used on landfill clay liners. In addition, several rapid field permeability test methods are also described. Four case histories are then presented in which both long-term and rapid field permeability test methods are conducted on clay liner test pads and the correlation between the various procedures is provided. Based on the correlation between the long-term and rapid permeability test methods, the production clay liner can be evaluated using only the rapid test methods reducing the potential for construction delays.
Comparison of Hydraulic Conductivity Test Methods for Landfill Clay Liners
Accurately measuring the in situ hydraulic conductivity (permeability) of a clay liner is a major factor in the construction of landfill containment systems. Laboratory and large-scale field test methods are often utilized on test pads constructed prior to placement of the production liner to determine the hydraulic conductivity of the clay. While these test methods provide reliable results, the time required to run the tests can be lengthy. To avoid potential problems, it is important to be able to correlate laboratory and large-scale field test results with more rapid field test methods. This paper discusses in detail the standard laboratory and large-scale field permeability test methods that are commonly used on landfill clay liners. In addition, several rapid field permeability test methods are also described. Four case histories are then presented in which both long-term and rapid field permeability test methods are conducted on clay liner test pads and the correlation between the various procedures is provided. Based on the correlation between the long-term and rapid permeability test methods, the production clay liner can be evaluated using only the rapid test methods reducing the potential for construction delays.
Comparison of Hydraulic Conductivity Test Methods for Landfill Clay Liners
Purdy, Scott (author) / Suryasasmita, Vince (author)
GeoShanghai International Conference 2006 ; 2006 ; Shanghai, China
2006-05-11
Conference paper
Electronic Resource
English
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