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Investigation des débits de fuite dans les étanchéités composites à l'échelle métrique

Abstract : The hydraulic behaviour of 17 composite liners was investigated at the metric scale in the laboratory using 1m diameter cells. A 0.27m thick layer of clay was compacted in all cells. A GCL or a geotextile was also used at the interface in a number of cases. A 4mm diameter hole was drilled in the flat HDPE geomembrane in all experiments. In the cases GCLs were used, the influence of the pre-hydration of the GCL at the beginning of the test was studied. When comparing situations where geotextiles and GCLs were used, results tend to show that even if GCLs incorporate a geotextile the flow rates obtained with GCLs are clearly lower that flow rates obtained in the case there is a geotextile in the interface, even when the geotextile is not fully saturated.
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Submitted on : Tuesday, August 18, 2020 - 10:30:13 AM
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  • HAL Id : hal-02587772, version 1
  • IRSTEA : PUB00019555



N. Touze Foltz, M. Barroso, F. Cartaud. Investigation des débits de fuite dans les étanchéités composites à l'échelle métrique. Rencontres Géosynthétiques 2006, 6ème Colloque Francophone, Montpellier, 12-14 juin 2006, 2006, Montpellier, France. pp.8. ⟨hal-02587772⟩



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