市政给排水施工中HDPE管施工技术研究

Research on HDPE Pipe Construction Technology in Municipal Water Supply and Drainage Construction

常见的工程管道材质主要包括钢、铸铁、混凝土和钢塑混合材质,由于钢塑混合材料韧性最强且能有效防止慢速裂纹生长,在市政工程中得到了广泛应用,已经占据了最大的市场份额。由于我国现代城市市政管道建设相对起步较晚,此时钢塑材料发展已较为成熟,因此更多地采用了聚乙烯管道,为后续市政管道整改升级提供了良好的物质基础。当前,随着材料学的不断发展,我国的市政管材已经从单一材料转变为了新型复合材料,如聚乙烯塑钢缠绕排水管,便是应国内市政管道建设需求、由我国自主研发的一类新型复合HDPE管道。

Common engineering pipeline materials mainly include steel,cast iron,concrete and steel-plastic composite materials.Because the steel-plastic composite materials have the strongest toughness and can effectively prevent slow crack growth,they have been widely used in municipal engineering and have occupied the largest market share.Due to the relatively late start of municipal pipeline construction in modern cities in China,the development of steel-plastic materials has been relatively mature at this time,so more polyethylene pipes have been used,providing a good material basis for the subsequent municipal pipeline rectification and upgrading.At present,with the continuous development of materials science,Chinese municipal pipes have changed from a single material to a new composite material,such as polyethylene plastic steel winding drainage pipe,which is a new type of composite HDPE pipe independently developed by China in response to the domestic municipal pipe construction demand.