ABSTRACT
A kind of geotextile was selected to study the influence of uniaxial tension on the permeability of the sand-geotextile system, and the permeability test of the sand-geotextile system under different tensile strains was carried out by gradient ratio permeameter. The influence of different tensile strains on permeability parameters, such as permeability, sand leakage, flow velocity, and gradient ratio, is analyzed. The test results show that under the condition of warp stretching, the permeability and anti-clogging performances of geotextiles decrease first and then increase, and the soil retention performance increases first and then decreases. When the tensile stress is 3%, the soil retention performance is the best, and the permeability and anti-clogging performance are the worst. In the weft stretching state, its soil retention performance continues to decline, and water permeability and anti-blocking performance continue to rise.
