Does the geotextile filter cover the geotextile? Or impermeable geotextile?
Geotextile has the role of anti-filter reinforcement, can not seepage, seepage is geomembrane, composite geotextile is also called composite geomembrane
Filter the geotextile on the seepage geotextile, when the water from the fine soil into the coarse soil layer, the use of polyester staple acupuncture geotextile good permeability and water permeability, so that the flow through the effective carrying soil Particles, sand, small stone, etc., in order to maintain the stability of soil and water engineering.
