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作 者:王辉 颜景暄 吴振宇 郭奇峰 WANG Hui;YAN Jingxuan;WU Zhenyu;GUO Qifeng(Sanshandao Gold Mine,Shandong Gold Mining Industry(Laizhou)Co.,Ltd.;School of Civil and Resource Engineering,University of Science and Technology Beijing)
机构地区:[1]山东黄金矿业(莱州)有限公司三山岛金矿,山东省莱州市261441 [2]北京科技大学土木与资源工程学院,北京市海淀区100083
出 处:《现代矿业》2025年第1期33-36,53,共5页Modern Mining
基 金:国家重点研发计划项目(编号:2021YFC3001301)。
摘 要:为研究三山岛金矿深部矿岩爆倾向性特征,采用空心包体应力解除法测量深部3个水平的地应力。通过室内力学试验,得到岩石的基本力学参数和全应力-应变曲线,利用冲击能系数判据、线弹性能判据、Russenses判据和陶振宇判据对深部巷道的岩爆倾向性进行多重判据分析。结果表明:冲击能系数判据和线弹性能判据法对现场岩爆预测较为准确。利用FLAC^(3D)软件对不同巷道开挖后弹性能分布规律进行了模拟分析,得到巷道周边弹性能的分布状态。综合分析表明,三山岛金矿深部均存在潜在的岩爆风险,其中3^(#)测点存在较强烈的岩爆风险,为安全高效开采提供科学依据和指导。In order to study the characteristics of deep rock burst tendency in Sanshandao Gold Mine,the hollow inclusion stress relief method is used to measure the in-situ stress at three levels in the deep.Through the indoor mechanical test,the basic mechanical parameters and full stress-strain curve of rock are obtained.The rock burst tendency of deep roadway is analyzed by multiple criteria using impact energy coefficient criterion,linear elastic energy criterion,Russenses criterion and Tao Zhenyu criterion.The results show that the impact energy coefficient criterion and the linear elastic energy criterion method are more accurate for the prediction of rock burst in the field.The distribution law of elastic energy after excavation of different roadways is simulated and analyzed by FLAC^(3D) software,and the distribution state of elastic energy around the roadway is obtained.The comprehensive analysis shows that there are potential rock burst risks in the deep part of Sanshandao Gold Mine,and there is a strong rock burst risk at the 3^(#)measuring point,which provides scientific basis and guidance for safe and efficient mining.
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