文章结合工程实例,介绍了预应力管桩+承台基础的基础形式下,施工斜底板时标高优化免除二次回填的设计及施工应用情况,通过应用说明了斜底板管桩承台优化的经济性。 The paper introduces the design and construction application of the secondary backfill of inclined slab basement under the basic form of prestressed pipe pile + cap base with engineering examples, and illustrates the optimized economy of inclined slab pipe pile cap through the application Sex.