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金属矿山 ›› 2008, Vol. 38 ›› Issue (04): 18-22.

• 采矿工程 • 上一篇    下一篇

井下泥石流发生机理数值模拟研究

杜建华1,匡忠祥2,宋卫东1,王永清2   

  1. 1.北京科技大学;2.武汉钢铁集团矿业有限责任公司
  • 收稿日期:2007-12-09 出版日期:2008-04-15 发布日期:2011-07-20
  • 基金资助:

    教育部新世纪优秀人才支持计划项目(编号:NCET-04-0102),国家“十一五”科技支撑计划项目(编号:2006BAB02A02)。

Numerical Simulation Study on Occurrence Mechanism of Underground Mud-Rock Slides

Du Jianhua1,Kuang Zhongxiang2,Song Weidong1,Wang Yongqing2   

  1. 1.University of Science and Technology Beijing;2.Mining Co., Ltd.of Wuhan Steel Group
  • Received:2007-12-09 Online:2008-04-15 Published:2011-07-20

摘要: 针对近年来采用崩落法开采的金属矿山井下泥石流频发,危害程度越来越严重的实际情况,以程潮铁矿井下泥石流发生的过程为工程背景,建立由矿石层、覆盖层、隔水层和泥石流层组成的数值计算模型,采用颗粒流(PFC3D)数值模拟软件对泥石流发生的动态过程进行研究,初步揭示了井下泥石流发生的动态演化过程及作用机理,总结出井下泥石流形成的力学实质和应采取的防治措施。

关键词: 崩落法开采, 井下泥石流, 发生机理, 数值模拟

Abstract: In view of the increasingly more serious hazard due to the frequent underground mud-rock slides in metallic mines where caving mining method is adopted, with the process of underground mud-rock slide in Chengchao Iron Mine as the engineering background, a numerical calculation model is built, which composed of ore layer, overlaying layer, water partition layer and mud-rock slide layer.PFC3D numerical simulation software is used in the study of the dynamic process of mud-rock slide.The dynamic evolution process and mechanism of underground mud-rock slide is preliminarily revealed and its mechanical essentials and prevention and control measures that should be taken are summarized.

Key words: Caving mining, Underground mud-rock slide, Occurrence mechanism, Numerical simulation