1. Double-wall steel cofferdam is the important facility of bridges deepwater foundation. 双壁钢围堰是桥梁深水基础施工的重要设施。
2. This part of the dam serves as a cofferdam which protects the remainders of the foundation for further construction. 坝的这一部分起着围堰的作用，保护着基础的其余部分，以便进一步施工。
3. Design and Construction of the anchor system for the large steel cofferdam of bridge pier of Wuhan Junshan Yangtze River Highway Bridge are introduced. 介绍武汉军山长江公路大桥桥墩的巨型钢围堰在水上施工时，所采取的锚碇系统的设计。
英英解释
n.
1. large watertight chamber used for construction under water
