沉井下沉施工过程中的关键技术

沉井基础施工的核心是沉井的下沉,合理的设计是沉井能够顺利下沉的关键。对南京长江第四大桥北锚碇及泰州长江大桥南、北锚碇等几个大型沉井施工中遇到的困难及解决方法进行了研究。结果表明：在沉井的设计中,适当增加其重率以及合理的设置助沉措施是决定沉井能够顺利下沉的关键因素。

Key Techniques of Caisson Sinking Construction Process

The core of caisson foundation construction is caisson sinking. Reasonable design is the key for smoothly sinking. This paper researched the difficulties encountered in the construction and the solving methods of the north anchorage of the nanjing fourth changjiang river bridge and the south and north anchorage of taizhou changjiang river bridge. Research shows that appropriately increasing heavy rates and reasonable setting for sinking measures is the key factors in open caisson sinking construction process.