大连市南部滨海大道工程的主桥锚碇基础采用超大沉箱结构,沉箱预制场选建在中远大连旅顺造船基地的既有2#船坞内;沉箱预制完成后,经海上运输至桥址现场安装。为了保证沉箱在坞内起浮和出坞过程中的安全与稳定,对超大沉箱起浮进行了专门的物模试验研究,得出了超大沉箱起浮、出坞关键控制参数和安全边际条件,为施工实施提供了重要参考和保证。 The main bridge anchorage of the South Coastal Road Project in Dalian City is based on an oversized caisson structure. The caisson prefabricated field is constructed in the existing dockyard # 2 of Dalian Lushun Shipbuilding Base in COSCO Dalian. After the caisson is prefabricated, it is transported by sea to the site of the bridge for on-site installation. In order to ensure the safety and stability of the caisson in the process of launching and unloading in the dock, a special model test was conducted on the caving of the caissons in the caissons, and the key control parameters and safety marginal conditions of the caissons in the caissons, For the implementation of the construction provides an important reference and guarantee.