摘要
通过矿岩力学强度测试和工程地质调查对红透山铜锌矿-877 m试验采场稳定性开展研究,重点分析矿岩质量评价结果和采场顶板水力半径计算结果。研究结果表明:RMR法和Q法对矿岩质量评价均为好;通过Mathews稳定图法计算得出矿石稳定区的临界水力半径为6.9 m;当单个采区顶板矿石跨度不超过15 m时,矿石水力半径小于6.9 m;当盘区顶板矿石跨度不超过14 m时,矿石水力半径小于6.9 m,此时采场处于稳定状态,不需支护。
An experimental study on the stability of the-877 m stope of the Hongtoushan copper-zinc mine was conducted through ore-rock mechanical strength testing and engineering geological surveys,focusing on analyzing the ore-rock quality evaluation re‐sults and the calculation results of the hydraulic radius of the stope roof.The research results show that the evaluation results of ore rock quality under the RMR method and Q method are all good.The critical hydraulic radius of the ore stable zone is 6.9 m calcu‐lated through the Mathews stability diagram method.When the span of the ore roof in a single mining area does not exceed 15 m,the hydraulic radius of the ore is less than 6.9 m.When the span of the ore roof in the panel area does not exceed 14 m,the hydrau‐lic radius of the ore is less than 6.9 m.At this time,the stope is in a stable state and does not require support.
作者
赵刚
张晓隆
刘强
刘春康
杜双成
陈毅刚
李浩
ZHAO Gang;ZHANG Xiao-long;LIU Qiang;LIU Chun-kang;DU Shuang-cheng;CHEN Yi-gang;LI Hao(China Nonferrous Metals Group Fushun Hongtoushan Mining Co.,Ltd.,Fushun 113321,China;School of Civil and Re‐source Engineering,University of Science and Technology Beijing,Beijing 100083,China)
出处
《有色矿冶》
2024年第4期12-15,共4页
Non-Ferrous Mining and Metallurgy
