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由于塑料管材具有造价低、水力条件好、施工简便等优点,被广泛地应用在给、排水及节水灌溉工程中,已成为替代钢管的主要管材。山区地形条件复杂,高差变化大,在输水工程中使用塑料管,既要满足使用要求,又要具有经济性、安全性、可操作性。因此,使用塑料管除满足管道铺设的一般要求外,还有其特殊性。1 管线。首先,管线应保证输水安全,尽量做到线路最短,土石方工程量最小,施工维护方便。其次,管线走向应符合供水点规划要求,最好沿道路铺设。第三,选择线路时应考虑附属
As the plastic pipe with low cost, good hydraulic conditions, easy construction, etc., are widely used in water supply, drainage and water-saving irrigation projects, has become the main pipe to replace steel. Mountainous terrain conditions, large changes in elevation, the use of plastic pipe in the water supply project, it is necessary to meet the requirements of use, but also with economy, safety, operability. Therefore, the use of plastic pipe in addition to meet the general requirements of pipe laying, there are its particularities. 1 pipeline. First of all, the pipeline should ensure the safety of water transport, try to achieve the shortest route, the smallest amount of earthwork, construction and maintenance convenience. Second, the pipeline should be consistent with the water supply point planning requirements, the best along the road laying. Third, the choice of line should consider the subsidiary