Seepage Characteristics Analysis of Geomembrane Earthrock Dams

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As a new kind of seepage control material, the geomembrane has been widely used in embankment dam, yet the seepage characteristics and effect of the geomembrane have not been studied on theory. Based on seepage mechanism in geomembrane, this thesis classifies the seepage into two types: one is permeability of geomembrane itself; the other is defect leakage flux in geomembrane. After studies respectively the influencing factors of permeability and defect leakage flux in geomembrane, the corresponding engineering measures were summed up. The study shows that the reasonable design and careful construction are requisite condition for the success of geomembrane seepage prevention works. At last, the philosophy of leak-position detection with electricity and its function in construction quality assurance was described.

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278-282

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August 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] J. P. Grioud, M. H. Gleason, J. G. Zomberg. Design of geomembrane anchorage against wind action. Geosynthtics International, vol. 6, 1999. pp.167-173.

Google Scholar

[2] K.W. Brown, J. C. Thomas, R. L. Lyhon, P. Jayawickrama and S. C. Bahrt. Quantification of leak rates through holes in landfill liners. USEPA Report CR 810940, Cincinnati, USA, 1987, pp.147-149.

Google Scholar

[3] Giroud, J P, Beech J F. Stability of soil layers on geosynthetic lining systems. Proceedings of Conference Geosynthetics, Industrial Fabrics Association International. California, 1989, pp.35-46.

Google Scholar

[4] Nosko, V. and Touze-Foltz, N. Geomembrane liner failure: Modelling of its influence on contaminant transfer., Proc. 2nd European Conf. on Geosynthetics, Vol 2, Bologna, Italy, 2000. pp.557-560.

Google Scholar

[5] Foose, G.J., Benson, C.H., and Edil, T.B. Predicting Leakage through Composite Landfill Liners., J. Geotech. and Geoenvir. Engrg., ASCE, 127(6), 2001, pp.534-539.

DOI: 10.1061/(asce)1090-0241(2001)127:6(510)

Google Scholar

[6] Touze-Foltz, N. and Giroud, J.P. Empirical equations for calculating the rate of liquid flow through composite liners due to large circular defects in thegeomembrane., Geosynthetics International, 12(4), 2005. pp.205-207.

DOI: 10.1680/gein.2005.12.4.205

Google Scholar

[7] Foose, G.J., Benson, C.H., and Edil, T.B. Predicting Leakage through Composite Landfill Liners., J. Geotech. and Geoenvir. Engrg., ASCE, 127(6), 2001, pp.534-539.

DOI: 10.1061/(asce)1090-0241(2001)127:6(510)

Google Scholar