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金属矿山 ›› 2007, Vol. 37 ›› Issue (09): 24-27.

• 采矿工程 • 上一篇    下一篇

梅山铁矿采场崩矿步距的探讨

范庆霞   

  1. 上海梅山矿业有限公司
  • 出版日期:2007-09-17 发布日期:2012-03-01

Discussion on Caving Space in Meishan Underground Iron Mine

Fan Qingxia   

  1. Shanghai Meishan Mining Co., Ltd
  • Online:2007-09-17 Published:2012-03-01

摘要: 梅山铁矿生产中使用的崩矿步距与优值步距相差较大,对矿山主要技术经济指标有一定的影响。针对矿山15 m×20 m大间距采场结构参数时崩矿步距进行了分析,并结合矿山在不同生产时期开展的现场工业放出体试验和凿岩爆破参数试验工作情况,提出了优化凿岩爆破参数研究的优化崩矿步距的新思路,可供国内同类矿山借鉴。

关键词: 无底柱分段崩落法, 结构参数, 崩矿步距, 研究

Abstract: There is a large difference between the caving space used in the production in Meishan Iron Mine and the optimal caving space, which has certain effect on the main technical and economic performances of the mine.Analysis is made of the caving space used when the stope adopts a 15 m×20 m large space structure.In combination with the results of the industrial ejection body tests made at different production stages and of the tests on the drilling and blasting parameters, a new thought is proposed on the optimization of mine caving space, which can be used as the reference for the similar domestic mines.

Key words: Pillarless sublevel caving method, Structural parameters, Caving space, Research