两步骤分段空场胶结充填采场结构参数优化

合理的采场结构参数对矿山的安全经济回采具有重要意义。某岩金矿山矿体为倾斜中厚矿体,为保证矿山的安全、高效生产,采用两步骤分段空场胶结充填采矿法开采,并对采场结构参数进行优化。采用有限差分软件Flac~(3D)对两步骤回采采场进行数值模拟分析,确定其最优采场结构参数。根据Flac~(3D)数值模拟分析结果确定采场分段高度为15 m,这不仅保证了回采的安全性,并且可以保证回采效率,以低成本、高产出的方式完成矿房回采工作。模拟分析优化结果可用于指导矿山安全经济回采。

Structural parameters optimization for the stope mined by two-step sublevel open stoping and cemented materials filling method

Reasonable stope structure parameters are of great significance to safe and economic extraction in mines.In light of the inclined medium-thick orebody in a rock gold mine , the mine applies two-step sublevel open stoping and cemented materials filling method for extraction and the stope structure parameters are optimized to ensure the safety and efficient operation .The paper used the finite difference software Flac 3D for numerical simulation of the two-step extraction stope and determined the optimal stope structure parameters .According to the simulation and analy-sis results,the sublevel height of the stope was determined to be 15 m.The optimization ensures the safety of extraction operation as well as its efficiency ,and with it,the ore room is extracted in a low-cost and high-output manner .The opti-mization achievements reached by simulation can be used to guide safe and economic extraction operation in mines .