ABSTRACT
To explore the influence of uniaxial tension in different directions on the permeability characteristics of geotextile-coated sand systems, two kinds of woven geotextile are selected. Penetration tests of two geotextile coated sand systems under non-stretching, warp stretching, and weft stretching conditions are conducted by a gradient ratio permeameter. The effects of longitude and latitude stretching on permeability parameters, such as permeability, anti-silting and plugging performance, and soil conservation performance, are analyzed. The experiments show that when the geotextile is subjected to warp tension, its permeability and anti-clogging performance are weakened, and its soil retention performance is enhanced; when the geotextile is subjected to latitudinal stretching, its permeability and anti-silting performance are enhanced, and its soil retention performance is weakened. The thickness of the woven fabric also has a great influence on its permeability, soil retention, and anti-fouling performance.
