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Ouvrages renforcés par géotextiles chargés en tête : comportement et dimensionnement

Abstract : The use of geotextiles to reinforce soils has enabled this technique to be adopted for a wide variety of applications, where economical solutions can be reached for permanent earth retaining structures. The technique of geotextiles reinforced soils can be extended, from technical and practical points of view, to earth structures used as bridge abutment. However the behaviour of such structures, particularly the behaviour at failure remained up to now relatively unknown. In this thesis work, the behaviour of a non woven geotextile reinforced full scale test wall with numerous measuring elements was studied. The test wall was loaded to failure under incremental vertical loading applied on top. Thereafter a parametric study of the loading on top was achieved with five model test walls in the centrifuge to collect more informations concerning the behaviour at failure. The measurement results obtained during the construction and the loading to failure of the full scale test wall and during the parametric study with the model walls on centrifuge gave a better understanding of the behaviour of such structures and have shown that it is possible to analyse correctly the observed behaviour during the tests on the basis of common calculations at limit equilibrium.
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Amidou Sere. Ouvrages renforcés par géotextiles chargés en tête : comportement et dimensionnement. Mécanique [physics.med-ph]. Ecole Nationale des Ponts et Chaussées, 1995. Français. ⟨tel-00529482⟩

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