基于修正RMR分级法的金属矿山岩体稳定性分析  

作　　者：刘震 

机构地区：[1]山东黄金集团有限公司深井开采实验室,山东莱州261400

出　　处：《科技创新与应用》2024年第11期143-146,共4页Technology Innovation and Application

摘　　要：焦家金矿寺庄矿区正逐步进入深部采矿,目前中深部采场存在稳固性较差的情况。结合寺庄矿区实际工程中地温、地下水及地应力的影响,对RMR分类法修正改进,提出IRMR分类法作为寺庄矿区岩体质量评级的方法。结果表明,主采的2号和7号矿体,从-280~-450 m深度大部分矿体为稳固性中等的Ⅲ岩体,仅部分区域存在稳固性较差的Ⅳ岩体。从IRMR法和RMR法结果对比中可以发现,大部分分级结果一致,仅一处工程IRMR分级为Ⅳ,结果更加合理。Sizhuang mining area of Jiaojia Gold Mine is gradually entering deep mining.At present,the stability of middle and deep stopes is poor.According to the influence of ground temperature,groundwater and ground stress in the actual engineering of Sizhuang mining area,the RMR classification is modified and improved,and the IRMR classification is proposed as the method of rock mass quality rating in Sizhuang mining area.The results show that most of the No.2 and No.7 orebodies in the main mining located at the depth of-280~-450 m have medium-stability III rock mass,and only part of the orebodies have poor stability IV rock mass.From the comparison of the results of RMR method and IRMR method,it can be found that most of the classification results are the same,only one project IRMR classification isⅣ,the result is more reasonable.

关 键 词：金属矿山 RMR法 IRMR法 稳定性分析 质量评级 

分 类 号：TD326[矿业工程—矿井建设]