Temporary back-jacking support construction method

The invention discloses a temporary back-jacking support construction method which comprises an upper-layer structure needing back-jacking support and a cured lower-layer structure, a supporting device is unfolded on the surface of the lower-layer structure, and the supporting device is composed of a top plate, a supporting column, a lifting device and a base from top to bottom. The top plate is fixedly connected with the supporting column, the supporting column is fixedly connected with the lifting device, and the lifting device is fixedly connected with the base. The problems that a traditional temporary back-jacking supporting method is difficult to assemble and inconvenient to disassemble are solved, the novel temporary back-jacking supporting construction method which is convenient to assemble and disassemble and adjustable in height is provided, manpower and material resources are greatly saved, and the construction efficiency is improved. 本发明公开了一种临时回顶支撑施工方法，包括需要回顶支撑的上层结构和已经固化的下层结构，在下层结构面展开支撑装置，所述的支撑装置从