东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (6): 871-874.DOI: -

• 论著 • 上一篇    下一篇

桓仁铅锌矿复杂采空区处理方案

刘洪磊;杨天鸿;黄德玉;刘爱军;   

  1. 东北大学资源与土木工程学院;桓仁矿业有限公司;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50874024,10872046,50904013);;

Schemes for disposing complex goaf in Huanren lead-zinc mine

Liu, Hong-Lei (1); Yang, Tian-Hong (1); Huang, De-Yu (2); Liu, Ai-Jun (2)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China; (2) Huanren Mining Corporation, Benxi 117207, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Liu, H.-L.
  • About author:-
  • Supported by:
    -

RichHTML

0

PDF (PC)

655

摘要： 桓仁铅锌矿地表不允许崩落.由于各种原因,在井下形成了大量的采空区,另外采空区的下部还存在大量矿体需要开采,为了避免冲击地压带来的安全隐患,保证下部矿体正常安全开采,采用留设隔离矿柱的方案来隔离上部采空区.应用FLAC3D程序,通过研究隔离层厚度、隔离层留设位置等因素,分析了隔离层留设对整个采空区应力分布的影响及自身稳定程度.结论表明,在-560 m水平留设12 m厚的隔离层可以有效地分担地压分布情况,能够保证后续深部矿体安全开采.

关键词: 采矿工程, 采空区处理, 隔离层, 有限元分析

Abstract: Surface subsidence is not allowed in Huanren lead-zinc mine. A lot of goaf were formed in underground because of various reasons. In addition, many orebodies under the goaf still need be mined. To prevent the potential danger of rock burst and ensure the deep orebodies are mined in normal, the interval layers should be remained to ensure safety. The 3D FEM code FLAC was applied to study the stress distribution in the whole goaf. The results showed that the interval layers are remained in -560 level with 12 m thick which can effectively share stress distribution and ensure following safety mining.

中图分类号: