Taking Anqing Highway Bridge over Yangtze River for example, give the design and key construction technology in large double-wall steel cofferdam.
结合安庆长江公路大桥的施工，介绍大型双壁钢吊箱围堰的设计方法和关键施工技术。
The double-wall steel cofferdam is widely applied in bridge deep water foundation due to that it is of characteristics of high structural strength and good waterproof performance.
而双壁钢围堰具有结构强度高、防水性能好的特点，因此，在桥梁深水基础中得到广泛应用。
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