基于CMS探测技术的房柱采矿法采空区精细化探测及稳定性评价
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摘要
房柱采矿法矿柱回收因安全风险大、回采成本高等特点,成为采矿界的技术难题之一。以南温河钨矿为工程背景,提出采用人工混凝土假柱置换法回采高品位矿柱。采用CMS采空区探测技术和Flac~(3D)数值模拟软件对采空区及矿柱稳定性进行评价。研究表明:人工混凝土假柱能够满足试验采场矿柱回采的安全要求,为今后南温河钨矿矿柱实现安全、高效和低成本回采提供了科学依据,也为今后类似矿山矿柱回采提供借鉴。
The recycling of the pillars in room and pillar mining method has become a major technical problem due to its high safety risks and high recovery costs.Taking Nanwenhe Tungsten Mine as engineering background,this paper proposes to use artificial concrete pillar replacement method to recover high-grade ore pillars.The gob area and pillar stability were evaluated using CMS goaf detection technology and Flac~(3 D) numerical simulation software.The research indicates that the artificial concrete pillar can meet the safety requirements of the mining pillars in the trial stope,and provide a scientific reference for the future safe,efficient and low-cost recovery of the ore pillars in Nanwenhe Tungsten Mine,and also provides valuable reference for similar mine pillars in the future.
The recycling of the pillars in room and pillar mining method has become a major technical problem due to its high safety risks and high recovery costs.Taking Nanwenhe Tungsten Mine as engineering background,this paper proposes to use artificial concrete pillar replacement method to recover high-grade ore pillars.The gob area and pillar stability were evaluated using CMS goaf detection technology and Flac~(3 D) numerical simulation software.The research indicates that the artificial concrete pillar can meet the safety requirements of the mining pillars in the trial stope,and provide a scientific reference for the future safe,efficient and low-cost recovery of the ore pillars in Nanwenhe Tungsten Mine,and also provides valuable reference for similar mine pillars in the future.
引文
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[2] 李同鹏,王亨炎,娄广文.CMS探测系统在采空区测量中的应用与实践[J].金属矿山,2010(4):110-113.
[3] 原广武,李杰林,张兴生.基于CMS的采空区探测及残矿回采[J].现代矿业,2015,31(2):113-115,122.
[4] 罗周全,鹿浩,袁节平,等.金属矿采空区精密探测与三维建模技术[J].湖南科技大学学报(自然科学版),2008,23(3):83-86.
[5] 程爱宝,古德生,刘洪强.基于AHP与粗糙集理论的采空区稳定性影响因素权重分析[J].中国安全生产科学技术,2011,7(9):50-55.
[6] 付建新,宋卫东,谭玉叶.采空区复杂顶板的三维分形特性及曲面模拟[J].中南大学学报(自然科学版),2018,49(2):431-438.
[7] 孙国权,李娟,胡杏保.基于FLAC3D程序的采空区稳定性分析[J].金属矿山,2007(2):29-31.
[8] 何标庆.基于FLAC3D的大型采空区群稳定性数值模拟分析[J].中国矿业,2018,27(7):99-102.