Reasons for drainage

Reduce and eliminate hydraulic pressure against structures:

• increase stability of geotechnical structure in case of a retaining wall
• reduce the weight on the structure in case of flat roofs
• increase stability of cover layer in case of capping of a landfill
• accelerate consolidation of soils in case of Prefabricated Vertical Drains (PVD’s)

Prevent leakage through a subsoil wall

• cellar walls
• underground structures