The Changjiang rub-river tunnel is designed as inverted siphon with drop shaft.
长江过江隧道采用了竖井式倒虹吸管的布置形式。
Hutuo River's inverted siphon concrete placement belongs to big volume concrete placement.
滹沱河倒虹吸管身混凝土浇筑属于大体积混凝土浇筑。
A sewer can be laid under a river by using an inverted siphon, which considerably reduces the excavation.
管道在穿过河流时采取虹吸法穿过河底，这样可以大大减少土方工程。
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