Geosynthetic Clay Liners Subjected to Differential Settlement
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Volume 123, Issue 5
Abstract
Geosynthetic clay liners (GCLs), which consist of a thin layer of bentonite attached to one or more geosynthetic materials, are receiving increased use as low-permeability barrier layers in waste-containment systems. Tests were performed in tanks to measure the hydraulic conductivity of GCLs that were subjected to differential settlement. In most cases the GCLs maintained a hydraulic conductivity of 1 × 10−7 cm/s or less when subjected to tensile strains of 1–>10%, depending on the material and test conditions. Overlapped GCL panels maintained their hydraulic integrity despite in-plane slippage of up to 25–100 mm. In general, the ability of GCLs to withstand differential settlement appears to be greater than that of compacted clay liners, but less than that of geomembranes. GCLs are a promising barrier material for situations in which differential settlement is expected, for example, in landfill final covers.
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References
1.
Ajaz, A., and Parry, R. H. G.(1975). “Strain-strain behavior of two compacted clays in tension and compression.”Géotechnique, London, England, 25(3), 495–512.
2.
Boardman, B. T. (1993). “The potential use of geosynthetic clay liners as final covers in arid regions,” MS thesis, Univ. of Texas, Austin, Tex.
3.
Daniel, D. E.(1991). “Geosynthetic clay liners.”Geotech. News, 9(4), 28–33.
4.
Daniel, D. E. (1993). “Clay liners.”Geotechnical practice for waste disposal, D. E. Daniel, ed., Chapman & Hall, Ltd., London, England, 137–163.
5.
Daniel, D. E., and Koerner, R. M. (1993). “Cover systems.”Geotechnical practice for waste disposal. D. E. Daniel, ed., Chapman & Hall, Ltd., London, England, 455–496.
6.
Daniel, D. E., Shan, H. Y., and Anderson, J. D. (1993). “Effects of partial wetting on the performance of the bentonite component of a geosynthetic clay liner.”Geosynthetics `93. Industrial Fabrics Association International, St. Paul, Minn., Vol. 3, 1483–1496.
7.
Estornell, P., and Daniel, D. E.(1992). “Hydraulic conductivity of three geosynthetic clay liners.”J. Geotech. Engrg., ASCE, 118(10), 1592–1606.
8.
Gilbert, P. A., and Murphy, W. L. (1987). “Prediction mitigation of subsidence damage to hazardous waste landfill covers.”Rep. No. EPA/600/2-87/025, Geotechnical Laboratory U.S. Army Engineer Waterways Experiment Station, Washington, D.C. Rep.
9.
Jessberger, H. L., and Stone, K.(1991). “Subsidence effects on clay barriers.”Géotechnique, London, England, 41(2), 185–194.
10.
Koerner, R. M. (1994). Designing with geosynthetics. 3rd Ed., Prentice-Hall, Inc., Englewood Cliffs, N.J.
11.
Koerner, R. M., and Daniel, D. E.(1992). “Better cover-ups.”Civ. Engrg., ASCE, 62(5), 55–57.
12.
LaGatta, M. D. (1992). “Hydraulic conductivity tests on geosynthetic clay liners subjected to differential settlement,” MS thesis, Univ. of Texas, Austin, Tex.
13.
Leonards, G. A., and Narain, J.(1963). “Flexibility of clay and cracking of earth dams.”J. Soil Mech. and Found. Div., ASCE, 89(2), 47–98.
14.
Lozano, N., and Aughenbaugh, N. R. (1995). “Flexibility of fine-grained soils.”The geoenvironment 2000, Y. B. Acar and D. E. Daniel, eds., ASCE, New York, N.Y., 844–858.
15.
Scherbeck, R., and Jessberger, H. L. (1993). “Assessment of deformed mineral sealing layers.”Proc., Green `93, Bolton University, Manchester, England.
16.
Scherbeck, R., Jessberger, H. J., and Stone, K. (1991). “Mineral liner reaction from settlement induced deformation.”Centrifuge 91, H. Y. Ko and F. G. McLean, eds., A. A. Balkema, Rotterdam, The Netherlands, 121–128.
17.
Shan, H. Y., and Daniel, D. E. (1991). “Results of laboratory tests on a geotextile/bentonite liner material.”Proc., Geosynthetics `91 Industrial Fabrics Association International, St. Paul, Minn., Vol. 2, 517–535.
18.
Tschebotarioff, G. P., Ward, E. R., and DePhilippe, A. A. (1953). “The tensile strength of disturbed and recompacted soils.”Proc., 3rd Int. Conf. on Soil Mech. and Found. Engrg., Switzerland, Vol. 1, 207–210.
19.
Weiss, W., Siegmund, M., and Alexiew, D. (1995). “Field performance of a geosynthetic clay liner landfill capping system under simulated waste subsidence.”Proc., Geosynthetics `95, Industrial Fabrics Association International, St. Paul, Minn., Vol. 2, 641–654.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 123 • Issue 5 • May 1997
Pages: 402 - 410
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: May 1, 1997
Published in print: May 1997
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