1、 Introduction to 3D composite drainage network:

Three dimensional composite drainage network is a new type of geosynthetics. The structure is a three-dimensional geonet core with needle punched nonwoven geotextiles stuck on both sides. The three-dimensional geogrid core consists of a thick vertical rib and an inclined rib at the top and bottom. It can quickly discharge the groundwater from the road, and has a pore maintenance system, which can block capillary water under high load. At the same time, it can also play the role of isolation and foundation reinforcement.

The three-dimensional composite drainage network is made of unique three-dimensional geonet bonded geotextile on both sides. The combination of geotextile (filter function) and geonet (drainage and protection function) provides complete "filtration drainage protection" effect.

The unique three-dimensional structure of three-dimensional composite drainage network core can bear high compression load and maintain a considerable thickness in the whole process of use, providing good hydraulic conductivity.

2、 Application of 3D composite drainage network:

Landfill drainage; highway subgrade and pavement drainage; railway drainage; tunnel drainage; underground structure drainage; retaining wall back drainage; garden and sports field drainage.