南水北调中线工程跨河建筑物较多,多采用倒虹吸,管身段较短的倒虹吸受长度限制,不能采用钢模台车,采用满堂脚手架,这时在脚手架上安装导轮,施工过程中人工移动,不仅节省了费用,也提前了工期,具有很好的实用价值。 South-to-North Water Diversion Middle Route Project more buildings across the river, more use of inverted siphon, short tube siphon by the length restrictions, can not use steel mold trolley, using full scaffolding, then install the guide wheel on the scaffolding, the construction process of artificial Mobile, not only save costs, but also ahead of schedule, with good practical value.