¿Cuáles son los principales usos de las redes de drenaje?

I. Road Engineering (Core Purpose: Solving the problem of water accumulation on the road surface/subgrade)

laid on the top surface of the subgrade (below the subbase) or on the subgrade slope to drain seepage water and rainwater from the subgrade soil.

Set between the asphalt surface layer and the base layer, it allows rainwater that seeps through the surface layer to drain quickly.

Lay between the bridge abutment fill and the bridge pier to accelerate the drainage and consolidation of the backfill.

When combined with geotextile and grass planting, it is laid on roadside slopes to drain accumulated water from the slope.

II. Railway Engineering (Core Purpose: Ensuring the Stability of Track Foundations)

Lay it at the bottom layer of the subgrade or on the slope to drain accumulated water and groundwater from the subgrade.

Lay on the outside of the tunnel lining (in conjunction with the waterproof membrane) to form a drainage channel.

III. Water Conservancy and Environmental Protection Engineering (Core Uses: Seepage Prevention and Auxiliary Drainage, Pollution Control)

Lay under the geomembrane (HDPE membrane) to drain seepage water from under the membrane.

Lay at the bottom and slopes of landfill sites to quickly collect and drain leachate.

Located below the wetland substrate layer, it drains excess water.