内衬塑膜圬工管作为地埋固定输水管,是近年来新开发的比较经济实用的输水管道。它利用塑膜管作防渗内衬,外护刚性的圬工料(主要是混凝土、水泥石粉、灰土料等)以承受管道的内水压力及外部荷载,兼有塑膜管和混凝土管的双重优点。此种管道是在挖好的基槽内,以充水、鼓圆、承压的塑膜管为内模,外敷圬工料(分上、下两部分),现场浇筑而成。 Lined with plastic film tube as a buried pipe buried, in recent years the newly developed more economical and practical water pipe. It uses the plastic pipe as a seepage proof lining, the outer protective rubber material (mainly concrete, cement powder, lime material, etc.) to withstand the internal pressure of the pipe and external load, both plastic pipe and double the plastic pipe advantage. This kind of pipe is dug in the base groove to fill the water, drum round, pressure plastic film tube as the internal mold, external 圬 material (points on the next two parts), cast from the scene.