苏通大桥5号主墩桩基施工钢护筒定位技术

Steel Casing Position Technology of Pile Foundation Construction of Pier 5 in Sutong Bridge

苏通大桥基础施工处于极差的地质和复杂的水文条件,施工难度大.介绍了为保证护筒的垂直下放,主要采取了刚性平台、刚性导向架辅助下放、先进测量定位技术、选择合适施工时机等技术措施,其施工经验有利于类似工程.

Sutong Bridge lies in the bad geological and complicated hydrographic conditions, which is hard to be constructed.The measures used in order to install steel casing vertically of pier 5 are introduced, which includes making rigid platform and making the rigid guiding device assist installation,chosing the advanced position technology and the right time for installation.The successful construction experience of the bridge is useful for the same kind of bridge.