Flowered Corrugated Steel Pipe’s Application in Drainage of Highway’s Sub-grade

In China’s southern areas, there are lots of precipitation and sandy land along rivers, and the long-term erosion and scouring of rainwater will seriously affect the load-bearing effect of roadbed and the reliable service life of road.

The traditional road drainage system is to dig diversion ditches at roadside, but the diversion ditches will take away a lot of roadbed soil under rain erosion. It not only increases the maintenance cost, but also seriously affects the safe service life of the road.

Therefore, increse the reliability of roadbed and reducce the impact of preciptation on roadbed, improve and strengthen the foundation pavement is an urgent problem to be solved at present.

Flowered Corrugated steel Pipe is a kind of seepage drainage pipe which can increase the drainage efficiency of road surface, reduce the water content of roadbed, and reduce the erosion of roadbed by water

In order to ensure the stability of the subgrade, meet the design and operation requirement, The corrugated steel pipe body is scattered with water seepage holes, mainly in the way of seepage collection water, and nearby discharged from the subgrade, reduce the subgrade underground water level, make the subgrade in a dry state.