Three-Dimensional Composite Geonet For Drainage

Three-Dimensional Composite Geonet For Drainage

Product Introduction：

Composite drainage network is a new type of geotechnical material for drainage. High density polyethylene (HDPE) special material, by extrusion molding process processing, with three layers of special structure. The middle rib is rigid, vertically extruded, forming a smooth channel, and the upper and lower cross-arranged ribs form a support to prevent geotextiles from embedding into the drainage channel, and it can maintain a high drainage performance even under a high load, and has the comprehensive performance of "isolation-drainage-ventilation-protection".

Performance Characteristics:

Strong drainage (equivalent to one meter thick gravel drainage).High tensile strength.Reduce the probability of geotextile embedment in the mesh core and maintain long-term stable drainage.Long-term high-pressure load (can withstand about 3000kPa compression load), corrosion resistance, acid and alkali resistance, long service life.Construction is convenient, shorten the construction period and reduce the cost.

Function And Use:

Mainly used in railway, highway, tunnel, municipal engineering, sewage, waterproof and other drainage engineering, the effect is remarkable. 

Construction Process:

Adjust the direction of the geotechnical drainage network so that the length direction of the material roll is perpendicular to the road. The composite geodrainage network must be terminated, and the geotextile on the adjacent geomesh core is lapped along the material roll. The geomesh cores of adjacent geomaterial rolls are connected with white or yellow plastic buckles or polymer straps to connect the rolls. Connect with straps every 3 feet along the length of the roll of material.

The direction of the bonded geotextile should be consistent with the direction of the packing pile. If the composite drainage network is laid between the foundation/base and the base, continuous wedge welding should be carried out. Flat head welding or stitching to secure the top layer of the bonded geotextile. If stitched, it is recommended to use a flat head stitch or a general stitch to meet the minimum stitch length requirements.

Technical Indicators:

Technical Specifications of Composite drainage Network (CJ/T 452-2014)