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Evaluation de la réduction de capacité de débit à long terme des géocomposites due à l'intrusion du filtre

Abstract : Water flow capacity in the plane tests were performed with 4 drainage geocomposites during 7 days with two types of contact area, either with a rigid contact area to apply the load on the geocomposite or with a flexible contact area. These tests were performed under a 200 kPa load. They allowed to evidence the influence of the type of the contact area on the hydraulic performance of the products. Thanks to this work, we could isolate and quantify the intrusion phenomenon of the filter inside the geospacer too. An approach is proposed to take into account this phenomenon on the long term design of drainage capacity in the plane of drainage composites.
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https://hal.inrae.fr/hal-02592341
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Submitted on : Tuesday, August 18, 2020 - 10:52:18 AM
Last modification on : Thursday, October 29, 2020 - 3:07:57 AM
Long-term archiving on: : Monday, November 30, 2020 - 9:04:20 PM

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  • HAL Id : hal-02592341, version 1
  • IRSTEA : PUB00027256

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Alain Herault, Roland Gallo, Nathalie Touze Foltz. Evaluation de la réduction de capacité de débit à long terme des géocomposites due à l'intrusion du filtre. Rencontres géosynthétiques 2009, Apr 2009, Nantes, France. pp.293-300. ⟨hal-02592341⟩

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