某矿措施井多分段复杂采空区充填治理实践

Practice of Filling Governance of Multi-stage Complex Goaf of the Service Shaft in a Mine

充填法治理空区是一种科学合理、安全可靠的方法。针对石人沟铁矿措施井采矿区域庞大的采空区群,本着技术可行、经济合理、尽早消除采空区安全隐患的目的,确定了纵向分段、横向分区的整体封堵充填方案。根据采空区赋存情况,通过实施青砖挡墙砌筑、滤水管挂设、充填管路延伸、充填钻孔钻凿、充填料浆制备等一系列工程措施,完成了采空区全尾砂胶结充填治理工作,彻底消除了措施井采空区群的安全隐患,为矿山露天边帮的稳定及三期工程井下采矿的顺利进行奠定了良好的安全基础。

Goal filling governance is a scientific, reasonable, safe and reliable method. According to the large goaf groups distributed in the service shaft mining area in Shirengou Iron Mine, the overall block filling scheme of longituclinal divisions and horizontal partitioning is proposed based on the principal of technical feasibility, economic rationality and eliminate the safety hazards of goaf as soon as possible. According to the goaf distribution situations, a series of engineering measures of building retaining wall by bulk bricks, hanging filter tube, extending filling line, drilling filling holes and production filling slurry are taken. The practice results show that the unclassified railings cementation goal filling governance work is done successfully, the safety hidden trouble of the goaf groups of the service shaft is eliminated thor- oughly, which lay a good safety base for ensuring the stability of open pit slope and the successful opera- tion of underground mining in phase Ⅲ engineering.