木兰溪大桥桩基双层护筒施工技术

On double steel cylinder construction technology of pile foundation of Mulanxi Bridge

介绍了在木兰溪大桥水中桩基施工中采用了设置内外双层护筒的施工技术,实践表明,双护筒不仅加快了工程进度,而且保证了护筒的回收使用,降低了施工成本,同时解决了水中桩的泥浆循环问题,是水位较深的水中桩基施工的一种经济可行的方案。

The paper introduces the adoption of the internal and external double steel cylinder construction technology in the pile foundation of Mulanxi Bridge.It is shown by the practice that the double steel cylinder can not only speed up the construction progress,but also ensure the recycling application of the cylinder,reduce the construction costs and solve the mud circulation,so it is the economical and feasible scheme for the underwater pile foundation in deep water level.