欢迎访问《金属矿山》杂志官方网站,今天是 分享到:

金属矿山 ›› 2009, Vol. 39 ›› Issue (06): 18-20.

• 采矿工程 • 上一篇    下一篇

采场余留矿量放顶回收及覆盖层回填技术

黄正全,李建奇,吕保   

  1. 中冶集团华冶资源开发有限责任公司
  • 出版日期:2009-06-08 发布日期:2011-07-21

Technical Scheme for Recovering the Remaining Ore in Open-pit Slope in the Overlying-Bed Formation by  Caving in Transition to Underground Mining

Huang Zhengquan,Li Jianqi,Lu Bao   

  1. MCC Huaye Resources Development Co., Ltd
  • Online:2009-06-08 Published:2011-07-21

摘要: 露天矿山转入地下开采过程中,如何解决边坡内采场放顶形成覆盖层及其内余留矿的高效安全回收,成为过渡期矿山面临的重要问题。实践证明,通过其边坡内余留采场或后期施工采场的整体大规模爆破放顶落矿,在下部分段回采中能高效安全回收边坡内余留矿量,并形成足够厚度覆盖层。介绍了保国铁矿高效安全回收边坡内余留矿量的做法。

关键词: 边坡压矿, 爆破, 覆盖层, 余留矿量, 矿石回收

Abstract: An efficient and safe recovery of the remaining ore in the overlying bed formation by slope caving is an important issue faced by the mines in the transition from open-pit to underground mining. The practice shows that an integral large scale blasting of the remaining part of pit or the later period working pit enables an efficient and safe recovery of the remaining ore within the slope in the subsequent sublevel extraction and the formation of an adequately thick overlying bed. The practice in Baoguo Iron Mine is presented.

Key words: Remaining ore in slope, Blasting, Overlying bed, Remaining ore, Ore recovery