Large Triaxial Compression Tests of Sand Reinforced with Geotextile

Abstract

Large triaxial compression tests of Toyoura-sand reinforced with a single layer of polymer grid, plastic net or non-woven fabric were carried out. By measuring the strain of geotextile moblized with compression, the reinforcing effect and the reinforcing mechanism were investigated.
It was found that failure mode changes with confining pressure, and that the increase of the maximum deviator stress by geotextile layer can be estimated with the tensile strength of the geotextile, and that the increase of the deviator stress at any axial strain by geotextile layer can not be estimated only with mobilized tensile force of the geotextile.