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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.
Caving stope is the main form of underground metal mine safety accidents.On the basis of the analysis of its influencing factors, the rock mass quality, the aging characteristics of rock mass, the exposed area of stope and the impact of blasting are the main factors influencing the stope stability The main factors of rock mechanics and damage mechanics and numerical simulation are combined with the field acoustic testing to construct the influence degree function and its influence weight from the four main controlling factors mentioned above. Method and criterion of the study, and according to the influence degree of each influencing factor, the hidden dangers and inducement of the area to be mined are revealed, and then the corresponding precautionary measures are put forward.Finally, the application of Tonglushan copper-iron mine in Daye of our country is introduced as an example The use of the system. Figure 2, Table 6, Senate 10.