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南水北调渠道排水系统主要包括排水沟槽的开挖,透水管(排水板)的铺设,三通、四通安装,粗砂填筑、振捣,逆止阀安装等。文章简要介绍排水系统主要工序的施工方法和质量控制要点。排水系统质量控制要点是粗砂压实质量控制、逆止阀的定位及安装控制、排水板的衔接和包裹质量控制。
The drainage system of South-to-North Water Diversion Project mainly includes excavation of drainage ditches, laying of permeable pipe (drainage board), installation of three-way and four-way installation, filling of grit, vibrating and installation of check valve. The article briefly introduces the main process of drainage system construction methods and quality control points. Drainage system quality control points are grit compaction quality control, check valve positioning and installation control, drainage board convergence and package quality control.