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钾盐矿开采效益与劳动安全的提高与采准巷道稳定性问题的解决密切相关。为了从矿藏中提高回收有用矿物的指标,计划采用嗣后充填和二次回采房间矿柱的采矿方法。采用此方案时,回采影响范围内采准巷道的服务期限将增长1倍以上。同时,由于开采深度大,盐体结构的非均一性和一系列其他因素引起的地压显现强烈,采准巷道早在进
The benefit of potash mining and improvement of labor safety are closely related to the solution of the problem of roadway stability. In order to increase the recovery of useful minerals from the mine, measures are proposed for the mining of post-fill and secondary-recovery pillar pillars. When adopting this scheme, the service period of the quarry roadway within the affected area of mining will increase more than one time. At the same time, due to the exploitation of a large depth, the salt structure of the heterogeneity and a series of other factors caused the strong pressure appeared,