蓝昌金.深部空区群作用下小厂坝铅锌矿岩爆危险性评估及安全回采技术研究[J].有色金属(矿山部分),2019,71(2):12-19.
深部空区群作用下小厂坝铅锌矿岩爆危险性评估及安全回采技术研究
Rockburst assessment and safe mining technology of Xiaochangba lead-zinc mine under deep mined-out zone groups
  
DOI:10.3969/j.issn.1671-4172.2019.01.004
中文关键词:  深部采矿  空区群  岩爆  安全回采  FLAC3D
英文关键词:deep mining  mined-out zone groups  rockburst  safe mining  FLAC3D
基金项目:
  
作者单位
蓝昌金 (梅州市金雁铜业公司玉水硫铜矿,广东 梅州 514000)
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中文摘要:
      小厂坝铅锌矿井采深大,空区群分布范围广,导致岩爆经常发生,因此岩爆成为制约该矿井安全高效生产的重要因素。本研究依据矿井实际地质与生产条件,利用有限差分软件FLAC3D建立数值分析模型,对各岩体应力状态进行研究,评估并划分岩爆区域与等级。并对开采方式和矿房布置形式展开研究,优选出最佳开采方式和矿房布置形式,减少应力集中,避免岩爆发生。
英文摘要:
      The mining depth of the Xiaochangba lead-zinc mine is large, and the distribution range of the mined-out zone groups is wide, which leads to frequent rockburst. Therefore, rockburst becomes an important factor restricting the safe and efficient production of this mine. In this study, according to the actual geological and production conditions of the mine, a numerical analysis model was established using the finite difference software FLAC3D, to study the stress state of surrounding rocks, evaluate and divide the rock burst area and grade. The mining mode and the layout form of ore house were studied, the best mining method and the layout form of ore house were obtained to reduce stress concentration and avoid rockburst.
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