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首页   >    采矿工程

基于岩体质量和稳定性分析的采场跨度优化

  • 薛田喜|李守奎|李军
  • 作者单位:
  • 山东黄金矿业(莱州)有限公司焦家金矿|北京科技大学土木与资源工程学院|北京科技大学土木与资源工程学院
  • 基金项目:

  • 国家自然科学基金项目(51974014,U2034206);中央高校基本科研业务费资助项目(FRF-IDRY-20-032)
  • 详细信息:

  • 作者简介:
  • 薛田喜(1974—),男,山东烟台人,高级工程师,从事金属矿山生产技术及管理工作;山东省莱州市金城镇焦家村,山东黄金矿业(莱州)有限公司焦家金矿,261400;E-mail:xuetianxi@sd-gold.com
  • 通讯作者:
  • isnull
  • PDF下载

Stope span optimization based on rock mass quality and stability analysis

  • English Author:
  • Jiaojia Gold Mine,Shandong Gold Mining Industry(Laizhou)Co.,Ltd.|School of Civil and Resources Engineering,University of Science and Technology Beijing|School of Civil and Resources Engineering,University of Science and Technology Beijing
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

为研究深部破碎区域不同采场跨度对采场稳定性的影响,对某矿山深部巷道展开结构面调查,依据调查结果对岩体进行GSI分级,进而开展基于GSI指标的Hoek-Brown经验强度折减,计算岩体参数并应用于数值模拟计算。通过Flac3D软件模拟采场跨度分别为3 m、4 m、5 m、6 m共4种工况条件下的采场情况,研究不同采场跨度对岩体稳定性的影响。根据模拟结果,结合现场施工,推荐采场跨度为3~4 m。

关键词:

岩体质量;GSI分级;采场跨度;稳定性;Flac3D软件

Abstract:

To study the influence of different stope spans on the stability of stope in deep fracture areas,a structural surface investigation was carried out in a deep roadway of a mine,and the GSI classification of rock mass was carried out based on the results of the investigation.Then Hoek-Brown empirical strength reduction based on the GSI index was carried out to calculate the rock mass parameters and applied to the numerical simulation calculation.The impact of different mining spans on the stability of rock mass was studied by simulating the mining conditions under 4 working conditions of 3 m,4 m,5 m and 6 m respectively through Flac3D software.According to the simulation results and the field construction,it is recommended that the stope span be 3-4 m.

Keywords:

rock mass quality;GSI classification;stope span;stability;Flac3D software