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随着南水北调主体工程的逐步完成,配套管线项目也陆续开工,主要采用PCCP大口径钢筒混凝土管做为供水主管道,沿线随时面临穿越各种建筑物和道路等,在人口密集地区和高压线林立地段,还要面临施工范围狭小、吊装空间不足等问题。在此针对河南省水利第二工程局南水北调配套在建项目展开分析,对PCCP管从施工准备、管材吊运、堆放、测量控制、铺设安装和打压试验进行了一系列阐述,指明了施工中各个环节应注意的问题,为大口径管道安装工程的施工提供了详实的借鉴资料。
With the gradual completion of the main project of South-to-North Water Diversion Project, supporting pipeline projects have also been started one after another, mainly using PCCP large-caliber concrete cylinder tube as the main water supply pipe, facing all kinds of buildings and roads along the line at any time, in densely populated areas and high voltage lines Lot, but also face the construction of a small area, hoisting space and other issues. In this paper, the Second Water Resources Bureau of Henan Province, South-North Water Supply Project supporting the construction of an analysis of the PCCP pipe from the construction preparation, pipe lifting, stacking, measurement control, laying and installation of pressure test carried out a series of elaborate on the construction of each Links should pay attention to the problem for large-diameter pipe installation project provides a detailed reference for the construction.