Step 1

Excavate shallow trench to accept upper gas collection, dilution and dispersal duct.

Step 2

Vibro-insert vertical vent nodes to required depth, formed from highly voided cuspated geosynthetic material.

Step 3

Create interface between vertical vent node and horizontal duct.

Step 4

Install horizontal gas collection, dilution and dispersal duct. Formed using high strength shallow highly voided synthetic structure.

Step 5

Backfill over horizontal duct to required cover and install vent terminations. Terminations are placed at calculated centres.