某铁矿阶段空场嗣后充填采空区的安全稳定性分析

采用阶段空场嗣后充填采矿法的某铁矿山留有大量采空区，为掌握采空区稳定性情况，预防采空区的安全事故发生，保证资源的安全回收，提出采用地表变形监测与数值模拟计算相结合的方法对采空区进行安全稳定性分析。结果表明，地表监测与数值模拟分别从间接和直接的角度对采场围岩的完整性和充填体的稳定性进行了评价分析，两种技术手段相结合，可以更加充分、全面地论证采空区的安全稳定性。因此，该方法对矿山回采和填充过程的安全性评价具有一定的指导意义。

Analysis of safety and stability of goaf with stage open stoping method with subsequent filling in an iron mine

A large number of ''goaves are left in an iron mine that adopts the method of stage open stoping with subsequent filling mining. To grasp the stability of the goaves, prevent the occurrence of safety accidents, and ensure the safe recovery of resources, this paper provides a method combining surface deformation monitoring and numerical simulation calculation to analyze the stability of goaves. The results show that surface monitoring and numerical simulation are used to evaluate and analyze the integrity of the stope surrounding rock and the stability of the backfill from indirect and direct perspectives. The combination of the two technical means can be more fully and comprehensively demonstrated. And analyze the safety and stability of the goaves. Therefore, this method has certain demonstration and guiding significance for the safety evaluation of the mining and filling process.