潮汐地区深水大体积承台双壁钢围堰施工技术

Construction Technology for Double-wall Steel Cofferdams of Large-size Bearing Platform in Deep Water in Tidal Area

双壁钢围堰适用于在流速大、水位较深、承台较浅的地层施工承台,以新建甬台温铁路工程中应用双壁钢围堰技术施工承台为例,从双壁钢围堰的制作、组拼、下沉、封底等方面详细介绍深水基础双壁钢围堰的施工技术,为类似工程的施工提供有益的经验。

Double-wall steel cofferdam is applicable for shallow construction pile caps in deep water with high flowing velocity. Taking construction pile caps of double-wall steel cofferdam in the Ningbo-Taizhou-Wenzhou Railway Project as examples, this paper introduces construction technologies of deep water double-wall steel cofferdam in details from the aspects of manufacturing, assembling, sinking, bottom sealing and so on, so as to supply references to similar projects.