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给水排水工程是城市建设和工矿建设的基础设施,而管道又占整个给水排水工程投资的大部分。管道的质量与给水排水系统的功效有密切关系。因此在国际上对管道的质量均有严格要求。一、混凝土与钢筋混凝土管混凝土和钢筋混凝土管在给排水工程中一直占据主要地位,因为它具有的特性,是其他管材所不能取代的,例如大流量排水用大口径管,采用顶管施工的管材,尤其是
Water supply and drainage engineering is the infrastructure for urban construction and industrial and mining construction, and the pipeline accounts for the bulk of the investment in water supply and drainage projects. The quality of the pipeline is closely related to the effectiveness of the water supply and drainage system. Therefore, the quality of the pipeline in the world has strict requirements. First, the concrete and reinforced concrete pipe Concrete and reinforced concrete pipe in the water supply and drainage projects has been dominant, because it has the characteristics of other pipe can not be replaced, such as large-flow drainage with large-diameter pipe, the use of pipe jacking Pipe, especially