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Geocomposites de drainage : relation entre capacité de débit et épaisseur long terme

Abstract : The water flow capacity of a drainage geocomposite is felt related to its thickness, hence the importance of the creep knowledge. The creep of a geosynthetic is its time-dependent thickness decrease, under a constant stress, under compressive, or compressive + shearing loading. This work deals with four different drainage geocomposites types, each one with a different kind of geospacer. Their creep behaviour has been studied under simple compressive loading and also with a shearing loading. Then their water flow capacity in the long term has been evaluated in reasoning on their time-dependent thickness decrease. Reduction factors have been deduced of those results: they are very different according to the type of the geospacers (compressible or not).
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  • HAL Id : hal-02587779, version 1
  • IRSTEA : PUB00019563

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C. Jarousseau, R. Gallo, N. Touze Foltz. Geocomposites de drainage : relation entre capacité de débit et épaisseur long terme. Rencontres geosynthétiques 2006, 6ème colloque francophone, Montpellier, 12-14 juin 2006, 2006, Montpellier, France. pp.199-206. ⟨hal-02587779⟩

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