Construction Technology of Steel Pipe Slant Support Reinforcement with Cantilever Supporting Pile as Tower Crane Foundation

The use of cantilever support piles as tower crane foundations increases the horizontal force of foundation pit support, and ensuring the safety of the foundation pit is the primary consideration. Firstly, use Lizheng software to calculate and analyze the stress conditions of the foundation pit, and compare and analyze feasible solutions based on the actual situation on site; Then after the analysis of SAP2000, the foundation pile of the tower crane bears part of the horizontal force. For the sake of safety and for the convenience of written review, the combination coefficient of the contribution of the dead weight of the tower crane foundation to the torque of the tower crane is taken as 0, and the horizontal load of the tower crane is all borne by the reinforced slant support members. Several cushion caps and baseplates around the bottom plate slant support are poured in advance, and the detailed drawing of concrete corbel and embedded steel plate connection is provided according to the site conditions. Practice has shown that the above simplification is convenient for written verification, convenient for construction site operation, and can effectively ensure the safety of the foundation pit and ensure the project schedule.