Flexible permeable pipe is mainly applicable to: 1) Vertical and horizontal drainage behind various retaining walls; 2) Drainage of highway and railway subgrades, shoulders, and soft soil foundations; 3) Drainage of tunnels and underground passages; 4) Drainage of power ash dams and water conservancy dams; 5) Drainage and vegetation protection of highway central isolation belts; 6) Drainage of outdoor sports venues; 7) Horizontal horizontal drilling drainage; 8) Drainage and slope protection of landslide-prone areas; 9) Drainage of roof gardens and flower beds; 10) Soil and water conservation on hillside land 11) Underground drainage of land preparation projects; 12) Low-lying land drainage and saline-alkali land improvement systems.
English