摘要
Abstract
During construction of long distance water diversion project,water conveyance structure inevitably crosses with the existing expressway,railway and other structures. Tanjin-Baoding expressway crossing project for south-wa-ter-north Tianjing trunk adopts box culvert jacking construction technology under steel pipe curtain support, which not only greatly improves the construction speed,reduces material loss and staff input, effectively controls the road surface settlement,but also guarantees the safe operation of expressway during construction.关键词
南水北调/输水箱涵/顶进法/穿越施工Key words
south-water-north/water delivery culvert/jacking method/crossing construction分类
交通工程
