金属矿地下开采采场灾害预警系统的研究

采场冒落是金属矿地下开采安全事故的主要形式．在对其影响因素影响分析的基础上，提出了岩体质量、岩体时效特性、采场暴露面积与爆破冲击为影响采场稳定性的主要因素。并应用岩石力学、损伤力学与数值模拟等方法，结合现场声波测试。从上述4个主控因素着手构建了其影响度函数与其影响权重，然后给出了采场稳定性综合评判方法与评判标准．并根据各影响因素的影响度，揭示了待采采场潜在的隐患与诱因，而后提出了相应的防范措施．最后以我国大冶铜绿山铜铁矿的应用为例介绍了该系统的使用方法.图2，表6，参10．

Study on Disaster Pre-Warning System for Underground Rock Mining

Stope rock-fall is the main style of safety accidents in underground metal mine. Based on analyzing influencing factors, rock mass, time-dependent effect, exposure area and explosion impact were taken as main influencing factors for stope stability. The influencing function and influencing weight were deduced based on the four main control factors by the methods of rock mechanics, damage mechanics and numerical simulation, associated with acoustic testing in site. Then the assessment method and assessment criterion were put forward. The potential hidden troubles and inducements of stope to be mined were revealed, and relevant safety precautions were put forward based on each influencing factor index. At the end, an application at Tonglushan copper-iron mine in China was introduced as an example. 2figs., 6tabs., 10refs.