2001 Volume 16 Pages 213-220
The triple composite liner is one of structures of seepage control system, which intercepts water infiltrating into ground from a final waste landfill. It is the combination of sheet as a first liner, geo-synthetics clay liner supported by a high dense polyethylene, and compacted soil mixed with bentonite. This liner is to purify quality of seepage water by the absorption of a bentonite liner through infiltration process, and preserve ecological environment in well condition. This paper demonstrates the seepage control effect of the triple composite liner by the results of permeability test conducted at the joint of liners, and also shows results of the permeability test using the specimen of mixed soil with bentonite. Furthermore travel times calculated for some types of seepage control systems are compared to evaluate their functions.
