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木文在评述国内低压管道现用管材优缺点的基础上,介绍研制成功的一种内衬塑料薄膜、外护圬工料的新管材,使用这种管材在现场浇筑的输水管道经大面积使用,证明其具有施工速度快(平约每工日浇筑管道约25m)、造价低(内径φ150mm管道造价为每米2.5元)、糙率小(n=0.009～0.010)、防渗性能好、可以就地取材等优点,是低压管道输水灌溉中目前较受群众欢迎的价廉、耐久的管材。
On the basis of comments on the advantages and disadvantages of the current domestic low-pressure pipe pipe, this paper introduces a newly developed new pipe material lined with plastic film and outer protection pipe. The large-scale use of this pipe for water pipe pouring in the field It is proved that it has the advantages of fast construction speed (about 25m pouring pipework per day), low cost (pipe diameter of φ150mm is 2.5 yuan per meter), small roughness (n = 0.009 ~ 0.010), good impermeability, Local advantages such as the advantages of low-pressure pipe water irrigation is currently welcomed by the masses of cheap, durable pipe.