井下多层开采地压控制管理的分析与研究

Analysis and Research on Ground Pressure Control Management for Underground Multi-level Mining

无底柱崩落采矿法,随着回采深部的加大及围岩的破碎程度,致使地压对原体产生破坏,导致巷道变形而无法回采。通过对该问题进行分析,提出采矿边掘边采进行局部大量出矿及留有保安矿柱等一系列的安全生产措施,对现存局部矿体进行泄压式回采,对矿山资源的合理开发利用及创建安全节约型大型矿山具有重要的意义。

For block caving mining,the deepening of backstoping and wallrock fracture leads to ground pressure damaging the orebody,finally causing roadway deformation and backstoping impossible to go on.After making a analysis of this problem,a series of safety production measures are put forward,for example,digging and mining are carried out simultaneously;large quantity of ores are mined at a specific area and safety pillars are retained.Pressure-relief type backstoping are done for part of the orebody,which is of great significance to rational development and utilization of mine resources and the building of safe and economic large-scale mines.