Leakage through Flaws in Geomembrane Liners
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 123, Issue 6
Abstract
Leakage through flaws in geomembranes was examined with laboratory experiments and modeling. Mathematical models were developed using analytical and numerical solutions to calculate leakage through flaws. The models were verified with laboratory experiments. The system geometry around a flaw was found to control leakage. Comparison of theoretical and experimental leakage rates indicated that under effective stress gaps close and flaws become infilled resulting in a decrease in leakage. Infilling of flaws becomes important in controlling flow when the membrane is thick relative to the size of the flaw. Simple leakage equations are presented that can be used to quantify the leakage rate from composite liners. For flaws that are small relative to the clay layer thickness, leakage is independent of the thickness of the clay layer in a composite liner.
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References
1.
Brown, K. W., Thomas, J. C., Lytton, R. L., Jayawickrama, P., and Bahrt, S. C. (1987). “Quantification of leak rates through holes in landfill liners.”EPA/600/2-87/062, Envir. Protection Agency, Haz. Waste Res. Lab., Cincinnati, Ohio.
2.
Chambré, P. L., Lee, W. W.-L., and Pigford, T. H. (1986). “Steady-state and transient radionuclide transport through penetrations in nuclear waste containers.”LBL-21806, Lawrence Berkeley Lab. and Dept. of Nuclear Engrg., Univ. of California, Berkeley, Calif.
3.
Fukuoka, M. (1986). “Large scale permeability test for geomembrane-subgrade system, third international conference on geotextiles.” A. A. Balkema, Rotterdam, The Netherlands, 917–922.
4.
Giroud, J. P., and Bonaparte, R. (1989). “Leakage through liners constructed with geomembranes—part II, composite liners, geotextiles and geomembranes.” 8, 71–111.
5.
Jayawickrama, P. W., Brown, K. W., Thomas, J. C., and Lytton, R. L.(1988). “Leakage rates through flaws in membrane liners.”J. Envir. Engrg., ASCE, 114(6), 1401–1417.
6.
Laine, D. L., Miklas, M. P., and Parr, C. H. (1988). “Loading point puncturability analysis of geosynthetic liner materials.”EPA/600/S2-88/040, Envir. Protection Agency, Washington, D.C.
7.
Runchal, A. (1994). “PORFLOW user's manual version 2.50.” Analytic and Computational Research, Inc., Bel Air, Calif.
8.
Walton, J. C., and Sagar, B.(1990). “Aspects of fluid flow through flaws in membrane liners.”Envir. Sci. and Technol., 24(6), 920–924.
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Copyright © 1997 American Society of Civil Engineers.
History
Published online: Jun 1, 1997
Published in print: Jun 1997
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