某铜矿中部回风系统围岩稳定性数值模拟  

Numerical Modeling on Surrounding Rock Stability of Medium Air-returning System at one Copper Mine

作　　者：严体 李在利 YAN Ti;LI Zai-li(Yunnan Copper Mining Research Institute,Yuxi,Yunnan 653100,China;Yuxi Mining Industry Co.,Ltd.,Yuxi,Yunnan 653100,China)

机构地区：[1]云南铜业矿山研究院,云南玉溪653100 [2]玉溪矿业有限公司,云南玉溪653100

出　　处：《云南冶金》2022年第6期13-18,共6页Yunnan Metallurgy

摘　　要：随着大红山铜矿地下采矿的持续,地下采矿过程中的地压问题是影响矿山发展的重要技术难题,针对中部的回风系统,必须要确保安全,保证通风系统的顺畅。采用数值分析方法分析回风系统的稳定性,分析可知最大位移为17.5 mm。建议按合理的回采顺序进行回采、严格按设计的矿柱界线回采等措施保障回风系统正常运行。Ground pressure problem during mining process is the critical technical challenge, it can affect mine development,along with the continuously underground mining of Dahongshan copper mine, the medium air-returning system shall be guaranteed the safety, so that the ventilation system can be operated smoothly. The numerical analysis method is used for analysis of the stability of air-returning system, the result that the maximum displacement is 17.5 mm. It is suggested that the extraction should be done according to the reasonable stoping sequence, the normal operation of air-returning system should be guaranteed by measurements that stoping should be carried out strictly as per the designed pillar boundary.

关 键 词：回风系统 网格模型 数值模拟 稳定性分析 地压 

分 类 号：TD263[矿业工程—矿井建设]