composite drainage net

Drainage of highway and railway subgrades: In the construction of highway and railway subgrades, 

the composite drainage net can be used to remove the accumulated water in the subgrades. 

It can quickly and effectively guide the water in the subgrades to the drainage system, avoiding 

damages such as softening and settlement of the subgrades caused by the accumulated water, 

improving the stability and bearing capacity of the subgrades, and prolonging the service life of 

highways and railways. 

For example, in some rainy areas or sections with a high groundwater level, laying a composite drainage 

net can effectively solve the subgrade drainage problem and reduce the pavement diseases caused by 

water damage.

Drainage of landfills: Landfills will generate a large amount of leachate, which needs to be drained in a timely manner to prevent pollution to the surrounding environment. 

The composite drainage net can be laid at the bottom and slopes of the landfill to form an efficient 

drainage system. 

It can quickly collect and discharge the leachate, prevent the accumulation of leachate in the landfill, 

reduce the pressure on the impermeable layer, protect the integrity of the impermeable layer, and also 

help to reduce the pollution risk of the soil and groundwater around the landfill.

Tunnel drainage: In tunnel engineering, the composite drainage net can be used for the drainage behind 

the tunnel lining. 

It can effectively collect and remove the seepage water in the tunnel, reduce the water pressure behind 

the lining, prevent the seepage water from eroding and damaging the tunnel structure, and improve 

the waterproof performance and structural stability of the tunnel. In addition, the composite drainage 

net can also play a role in protecting the tunnel lining, reducing diseases such as cracks and spalling 

of the lining caused by the long-term effect of water, and ensuring the safe use of the tunnel.