水上浮运工厂──预制沉埋管段的新方法把浮筒连接在一起，形成一个浮在水面上的预制混凝土沉埋管段的浮运工厂．施工阶段可分为：１．在浮筒上干燥的施工场地上灌注隧道结构的底板；２．立好侧墙模板，两端立起钢制墙头，开始灌注边墙混凝土；３．升起滑动模板，置好顶板... Waterfloat factory - A new method of prefabricating submerged pipe sections to connect buoys together to form a floating plant that floats on the surface of a precast concrete buried pipe section. The construction phase can be divided into: 1. To infuse the floor of the tunnel structure on the dry construction site on the pontoon; 2. Set up the side wall formwork, set up the steel wall at both ends, and start pouring the side wall concrete; 3. Raise the sliding template and set the top plate...