The principle of lining maintenance

The principle of lining maintenance is to lining the new pipe on the inner wall of the original pipe, and the pipe diameter is smaller than the original pipe. However, due to the pipeline materials and other reasons, the bearing capacity of the new pipeline may not be much different from the original drainage capacity. The advantage of this method is that the construction has little influence on road traffic and other underground traffic. But its disadvantage is that when the pipeline has large dislocation and deformation, it can not achieve the expected effect. The diameter and slope of the new pipe depend entirely on the relevant properties of the old pipe.