某锰矿采场极限跨度计算分析方法研究  

Study on Calculation and Analysis Method of Limit Span of Stope in a Manganese Mine

作　　者：郑旭 潘健 尹裕 ZHENG Xu;PAN Jian;YIN Yu(Xinjiang Kalatongke Mining Co.,Ltd.;Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.)

机构地区：[1]新疆喀拉通克矿业有限责任公司,新疆维吾尔自治区阿勒泰市836107 [2]中钢集团马鞍山矿山研究总院股份有限公司

出　　处：《现代矿业》2021年第11期44-47,共4页Modern Mining

摘　　要：采场跨度对生产安全和开采经济效果都有着至关重要的作用。针对某锰矿采场跨度较小导致矿石损失率较高的问题,采用理论计算和数值模拟2种方法对采场顶板极限跨度进行了分析。采用弹性力学薄板理论计算采场顶板极限跨度为10.5 m;采用弹性力学简支梁理论计算采场顶板极限跨度为12 m。通过数值模拟法验证10 m的采场跨度,结果表明,当矿柱强度与顶板强度一致时,采场处于稳定状态。Stope span plays an important role in production safety and mining economic effect.Aiming at the problem of high ore loss rate caused by small stope span of a manganese mine,the limit span of stope roof is analyzed by theoretical calculation and numerical simulation.The limit span of stope roof is calculated as 10.5 m by using the thin plate theory of elasticity.The limit span of stope roof is calculated as 12 m by using the simply supported beam theory of elasticity.The results show that when the pillar strength is consistent with the roof strength,the stope is in a stable state.

关 键 词：采场极限跨度 薄板理论 简支梁理论 数值模拟法 

分 类 号：TD861.2[矿业工程—金属矿开采]