关键词: 竖井, 变形破坏, 空区处理, 数值模拟, 岩层变形

Abstract: Aiming at the problem that the deformation of the goaf and the surrounding rock strata may affect the construction of the main shaft of the mine，FLAC3D numerical simulation software is used to simu⁃ late the deformation of area near the proposed main shaft. Through the numerical simulation results，the de⁃ formation caused by the surrounding environment after the completion of the wellbore is evaluated whether it is within the allowable range of the state，and the plastic deformation zone formed by the goaf around the shaft and the plastic zone generated during the construction of the main shaft are analyzed，whether there is an overlap. The results show that the deformation of the main shaft caused by rock movement is within the al⁃ lowable range of the state. However，in the absence of filling treatment，the plastic deformation area near the goaf at 114 m and 125 m elevations overlaps with the plastic deformation area near the main shaft，so it is necessary to fill the goaf. Furthermore，the numerical simulation software is used to simulate the situation after filling. The results show that the plastic deformation area of the shaft and the goaf no longer overlaps af⁃ ter filling，which provides a certain reference value for the actual construction.

Key words: shaft, deformation and failure, goaf handling, numerical simulation, deformation of rock formations