红岭多金属矿复杂采空区稳定性

为确保矿山的正常安全生产和经济效益,以红岭多金属矿复杂采空区为例,针对遗留的大量采空区问题,进行稳定性研究。在现场监测数据基础上,通过数值模拟及K.B.鲁别涅依他公式法分别研究了空区间柱、顶板和上下盘围岩的稳定性,并与现场实际情况做对比分析。结果表明：将现场调查结果、数值模拟方法及经验公式分析方法相结合,对空区稳定性进行综合评判,全面地获得复杂采空区的稳定性情况以及潜在破坏区域,可更有效地指导工程实践,研究结果可为下一步矿山安全回采提供依据。

STABILITY ANALYSIS OF COMPLEX LEAD MINED-OUT AREA OF AN POLYMETALLIC MINE IN HONGLING

In order to ensure the normal safety production and economic benefits of the mine, taking the complex goaf of an polymetallic mine in Hongling as an example, the stability of the goaf is studied aiming at the leaving number of goafs. Based on the field monitoring data, the stability of the barrier pillar, roof and the surrounding rock mass of the upper and lower wall are studied by the numerical simulation and the method of K. B. Lubeneyita formula. The rusults are compared with the actual situation on site. The results show that a comprehensive evaluation on the stability of the goaf is studied combining with the field investigation results, numerical simulation method and the empirical formula analysis method. The stability of the complex goaf and the potential failure area are also obtained comprehensively. The engineering practice is directed more effectively. Moreover, the research results has significant guidance value for the safe mining in the next step.