Geocomposite Drainage Core

Definition A Plastic Blind Drain is a type of geosynthetic drainage material with a three-dimensional polymer structure as its core.It is designed to replace traditional granular drains (like gravel) for efficient subsurface water collection, conveyance, and drainage. It is widely used in civil engineering projects such as roadbeds, tunnel linings, retaining walls, and landfill systems to prevent waterlogging and ensure long-term stability.

Composite drainage net is an advanced three-dimensional drainage material, formed by laminating a geonet core with non-woven geotextiles. It integrates the functions of filtration, drainage, and protection into one, serving as a core material for efficient drainage systems in modern civil engineering.