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Performance of Two Experimental Full-Scale Embankments Reinforced with Geotextiles

Two experimental reinforced embankments were built up with clayed silt at the Swiss Federal Institute of Technology in Lausanne. These two identical full scale structures had the same dimensions (3.60 m height, 5×5 m base). They were reinforced using two types of geotextile : the first a non-woven type with weak mechanical properties, and the second one a stiffer woven geotextile. A complete instrumental program was set up to record the behaviour of the two embankments. A program including static and cyclic loading was performed.
In this paper we compare some of the significant results of these two full-scale tests. We show the influence of the textiles’ rigidity on the settlement at the embankment surface and the strain of the geotextile layers.