关键词: 回采顺序　 数值计算　 相似材料　 断裂带稳定 

Abstract: The gently inclined thick and large broken ore body under a fault zone is affected by the fault zone during the mining process,and the hanging wall rock mass caving phenomenon is very easy to occur. In order to improve the stability of the hanging wall rock mass in the mining process of the mine,a method of controlling the deformation of the surrounding rock of the stope by optimizing the mining sequence is proposed. The stability of stope and fracture zone under different mining sequence schemes was studied by means of numerical simulation and similar material test. The results show that when the upward layered filling method is used to mine from the hanging wall to the footwall,the stress concentration of the roof and the hanging wall of the fracture zone is small and the displacement fluctuation is stable. The overall stability of the stope is good,and the fracture zone is not damaged. In the process of mining and filling from the footwall to the hanging wall,the stress concentration degree of the roof and the hanging wall is higher and the displacement fluctuation is larger. The stress is mainly concentrated in the roof position,and the displacement is mainly concentrated in the boundary position of the fault zone and the mine room. With the development of mining,cracking failure occurs at the fracture zone,and the stability of the stope is poor. It is proved that the upward slicing and filling method is more conducive to the stability of the fault zone from the hanging wall to the footwall,which is the best mining sequence scheme. The research conclusion not only provides guidance for the optimization of the mining sequence of the mine,but also provides reference for the mining construction of similar mines. 

Key words: mining sequence,numerical calculation,similar materials,fault zone stabilization