Erosion Control Geomat (also known as three-dimensional geotechnical drainage board, tunnel drainage board, drainage board) is composed of a three-dimensional structure of plastic mesh double-sided bonded with permeable geotextile. It can replace the traditional sand and gravel layer and is mainly used for garbage filling. Drainage of burial sites, roadbeds and tunnel walls.

Geomat Erosion Control is a new type of geosynthetic material, consisting of a three-dimensional geotextile core with needle punched non-woven geotextile on one side and anti-seepage geotextile film on the other side.