摘要
大冶铁矿尖林山采场在开采过程中出现了巷道垮冒、围岩不稳等现象,采场安全受到影响。从内因和外因2个方面讨论了巷道失稳的原因,从改变回采方式、改善采场结构参数和加强支护3个方面阐述了提高采场稳定性的措施,保证了矿区安全。
In Jianlinshan Stope of Daye Iron Mine,some unsafe factors like as roof fall and unstable surrounding rock were appeared in the mining process.In order to maintain the security of the mine,some reasonable support and reinforcement memods were used.Based on the discussion of surrounding rock failure,the support methods are optimized,which ensures the roadway androck stability.
引文
[1]谷志孟.我国矿山地质安全控制技术的现状与发展趋势[J].岩土力力学,1993,14(3):61-66.
[2]孟中华,卢立松,耿立峰.金属矿山深井开采过程中的顶板事故浅析[J].采矿技术,2010,10(4):63-65.
[3]刘恺德,刘泉声,刘滨,等.地质异常带巷道稳定控制对策及效果研究[J].岩石力学与工程学报,2012,30(12):2486-2497.
[4]江兵.大冶铁矿无底柱分段崩落法采场结构参数优化的研究[D].武汉:武汉科技大学,2008.
[5]杨官涛.地下采场结构参数优化及稳定性的能量突变分析[D].长沙:中南大学,2007.