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金属矿山 ›› 2013, Vol. 42 ›› Issue (07): 162-165.

• 安全与环保 • 上一篇    下一篇

声发射累计差量指标在采空区失稳预报中的应用

马雄忠1,王文杰1,莫焕东2,叶鹏1   

  1. 1.武汉科技大学资源与环境工程学院;2.广西佛子矿业有限公司
  • 出版日期:2013-07-15 发布日期:2013-08-12
  • 基金资助:

    * 国家自然科学基金项目(编号:50804036),武汉市晨光计划项目(编号:201050231045),湖北省教育厅重点项目(编号:D20111107)。

Application of Acoustic Emission Cumulative Difference Indicator in Instability Prediction of Goaf

Ma Xiongzhong1,Wang Wenjie1,Mo Huandong2,Ye Peng1   

  1. 1.College of Resource and Environmental Engineering, Wuhan University of Science and Technology;2.Guangxi Fozi Mining Co., Ltd.
  • Online:2013-07-15 Published:2013-08-12

摘要: 提出了评价地下工程稳定性的声发射事件率累计差量指标,该指标综合考虑一段时间内的声发射波动情况,能更准确地进行采场、采空区失稳预测。基于灰色理论建立声发射事件率累计差量指标的GM(1,1)预测模型,并应用于佛子冲铅锌矿104号矿体采空区失稳预报中,预测结果与实际情况具有良好的一致性。

关键词: 声发射, 累计差量指标, 灰色理论, 岩体稳定性

Abstract: Acoustic emission cumulative difference indicator was proposed to evaluate the stability of underground engineering. The indicator takes into account of acoustic emission wave over a period of time, so it can predict the instability of goaf more accurately. Based on the grey theory, the GM(1,1) model of acoustic emission cumulative difference indicator is established, and applied to forecast goaf instability of the No.104 ore body in Fozichong Pb-Zn mine. The prediction has a good consistency with the actual situation.

Key words: Acoustic Emission, Cumulative difference indicator, Grey theory, Rock mass stability