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高层建筑一般有较深的基础和地下室，当建设场地土层较深时，通常需要对深基坑支护才可以施工，这不仅要花费大量支护的费用和较长的工期，有时还很难保证邻近的建筑物的安全。本法是先作挖孔桩后，在其护壁内从基础梁顶面起将柱引到室内地面标高，在室内地面标高处形成完整的梁板体系，从上向下逆作，施工地下室侧墙、梁板和基础结构，不需单独的基坑支护，同时可正常地向上施工主体结构，该设计施工方法，不仅节省了基坑支护结构，保证了邻近建筑物的安全，而且从室内地面标高起，开辟了向下向上双工作面，大量缩短工期，具有很好的技术经济效益。
High-rise buildings generally have deeper foundations and basements. When the construction site has a deep soil layer, it is usually necessary to support deep foundation pits before they can be constructed. This not only requires a large amount of support costs and a long period of time, but is also very time-consuming. It is difficult to ensure the safety of neighboring buildings. In this method, after digging piles, the column is led from the top surface of the foundation beam to the indoor ground elevation in its retaining wall, and a complete beam system is formed at the elevation of the indoor ground, which is reversed from the top to the bottom of the construction basement. Walls, slabs, and foundation structures do not require separate foundation pit support. At the same time, the main structure can be normally erected. This design and construction method not only saves the foundation pit support structure, but also ensures the safety of the adjacent buildings, and from The elevation of indoor grounds has opened up the double working face downwards, which greatly shortens the construction period and has good technical and economic benefits.