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金属矿山 ›› 2012, Vol. 41 ›› Issue (06): 1-3+8.

• 采矿工程 •    下一篇

西石门铁矿南Ⅱ区深部难采矿体采矿工艺改进

常帅1,任凤玉1,张法胜2,张福宏2   

  1. 1.东北大学资源与土木工程学院;2.五矿邯邢矿业有限公司西石门铁矿
  • 出版日期:2012-06-15 发布日期:2012-06-29

Mining Technical Improvement for Deep and Difficult Mining Orebody in Southern District Ⅱ of Xishimen Iron Mine

Chang Shuai1,Ren Fengyu1,Zhang Fasheng2,Zhang Fuhong2   

  1. 1.School of Resource and Civil Engineering,Northeastern University;2.Xishimen iron mine of Minmetals Hanxing Ming Co.,Ltd
  • Online:2012-06-15 Published:2012-06-29

摘要: 西石门铁矿南Ⅱ区为缓倾斜中厚矿体,进入深部开采后,矿体进一步变缓变薄,而且底板不稳岩层进一步增厚,矿山沿用无底柱分段崩落法开采,生产中出现单分段回采与残矿损失大等突出问题。本研究根据矿岩产状及稳固性特征,提出了堑沟落矿与进路退采出矿相结合的无底柱分段崩落法改进方案。研究表明,这一改进方案能较好的适应矿岩条件,可实现矿山安全高效的开采目标。

关键词: 难采矿体, 无底柱分段崩落法, 堑沟落矿与进路出矿, 高效开采

Abstract: The southern district Ⅱ of Xishimen iron mine is gently inclined and medium thick orebody. In the deep mining,the dip angle and the thickness decrease and the unstable floor rock becomes thick. Sublevel caving is still in application,so there are some critical problems,such as single level mining and great loss of residual ore. According to the occurrence and the stability of rock mass,an improved sublevel caving scheme that loading in trench and ore drawing in drift is purposed in this paper. The results show that the new scheme meets conditions of rocks well and mining is safe and efficient.

Key words: Difficult mining orebody, Sublevel caving, Loading in trench and ore drawing in drift, High efficient mining