When the buried depth of the pipeline is shallow, concrete is usually used for backfilling to protect the pipeline from being crushed.

Special requirements of municipal pipe network

Generally speaking, these trunk pipe networks are laid under urban roads, and the distance between them is required. When calculating the buried depth, there are strict requirements for the size and elevation of the bifurcation, confluence and intersection of the pipe network.

Difficulties in pipeline design

It is very difficult to prevent pipes from fighting and colliding, especially some pipes. Once they are designed, they want to be readjusted. Unless the whole project is completely rebuilt, the cost will be staggering, such as the drainage pipeline discharged by gravity flow.