二矿区采场稳定性与进路宽度关联性数值分析  

Numerical Analysis of the Correlation between Stope Stability and Approach Width in Mining Area 2

作　　者：郭贇林 李芳[1] 夏胜衍 张志浩 常伟 杨一帆 Guo Yun-in;Li Fang;Xia Sheng-yan;Zhang Zhi-hao;Chang Wei;Yang Yi-fan

机构地区：[1]金川集团股份有限公司二矿区

出　　处：《金川科技》2023年第1期8-12,共5页Jinchuan Science and Technology

摘　　要：为了研究二矿区采场稳定性与采场进路宽度的关联性,采用FALC3D数值仿真软件,揭示了二矿区采场开采期间不同进路宽度下最大主应力、塑性区、矿岩位移量的演化规律,并优选了进路宽度。结果表明,最大主应力随着进路宽度增加而递减,塑性区、矿岩位移量随着进路宽度的增加而增加,数值模拟结果与二矿区现场实际结果吻合。数值试验结果为二矿区采场的进路宽度选择提供了有力支撑。In order to study the correlation between stope stability and stope approach width in mining area 2,numerical simu-lation software FALC3D was used to reveal the evolution law of the maximum principal stress,plastic zone,and ore rock displace-ment under different approach widths during stope mining in mining area 2,and the approach width was preferentially selected.Re-sult shows that:the maximum principal stress decreases with the increase of approach width;plastic zone and ore rock displacement increase with the increase of approach width.The numerical simulation results match with the actual results at the site of the second mine,providing favorable support for selecting approach width in stopes of mining area 2.

关 键 词：采场稳定性 进路宽度 数值计算 

分 类 号：P61[天文地球—矿床学]