100mm PVD Water Drainage Sheet Profile Board Extrusion Machine

Plastic drainage boards consist of PP  board and a filter nonwoven. The PP board with grooves, is wrapped in nonwoven geotextile to form drainage channels. By rapidly discharging pore water through the plastic drainage boards, the effective stress of the soil increases, accelerating soil consolidation. Under applied loads, pore water in soft soil foundations can be drained through the plastic drainage boards, or after land formation, it can be discharged via sand cushion layers or horizontal plastic drainage pipes laid on top.