The role of the composite geotechnical drainage network
1, drainage function: laid on the base level, used to discharge the water between the packing material and the base level, block the capillary water and effectively combined into the edge drainage system. This structure automatically shortens the drainage way of the base, greatly reduces the drainage time, can prevent the slope soil liquefaction, enhance the stability of the slope. Geotextile has the function of backfilter to prevent fine particles from entering the mesh core gap, thus ensuring the long-term effectiveness of the drainage capacity of the mesh core.
2. Reinforcement function: the packing and the base soil will enter the upper part of the geotechnical network to a limited extent. In this way, the composite geotechnical drainage net also has a potential role to limit the lateral movement of the filler, in a way similar to the reinforcement of the geogrid. In general, the tensile strength and rigidity of the composite geotechnical drainage network are better than those of many geogrid used for foundation reinforcement, and this restriction will improve the support capacity of the slope.
3, isolation effect: composite geotechnical drainage
