目前,先张发预应力混凝土管桩在我国建设工程桩基础设计中得到了广泛使用,而该施工工艺的沉桩施工控制成为了整个施工过程以及质量保证的重点对象。文章通过该施工工艺在某住宅小区遇到砾砂层时桩体上浮现象进行研究,测试结果表明复压可以解决静压高强管桩浮桩的相关问题。 At present, the first prestressed concrete pipe piles have been widely used in the design of pile foundation of construction projects in our country, and the construction control of pile sinking construction has become the focus of the entire construction process and quality assurance. The article studies the floating phenomenon of pile body when gravel sand layer is encountered in a residential area through the construction technology. The test results show that the re-pressure can solve the related problems of static pressure and high strength pipe pile floating pile.