留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
Volume 8 Issue 4
Dec.  2001
数据统计

分享

计量
  • 文章访问数:  252
  • HTML全文浏览量:  89
  • PDF下载量:  12
  • 被引次数: 0
Sijing Cai, Hai Zhao, and Shangjun Ying, Recovery of Level Pillar between Open-pit and Underground Mine by Using Underhand Heading Fill Method, J. Univ. Sci. Technol. Beijing, 8(2001), No. 4, pp. 244-247.
Cite this article as:
Sijing Cai, Hai Zhao, and Shangjun Ying, Recovery of Level Pillar between Open-pit and Underground Mine by Using Underhand Heading Fill Method, J. Univ. Sci. Technol. Beijing, 8(2001), No. 4, pp. 244-247.
引用本文 PDF XML SpringerLink
Mineral

Recovery of Level Pillar between Open-pit and Underground Mine by Using Underhand Heading Fill Method

  • The upper part of the Fujia deposit was mined out by open-pit, and the lower part is being mined underground. The level pillar between open-pit and underground mine had a thickness of 24 m, a length of 300 m and a maximum width of 35 m. As the level pillar contained about 5.2 million ton ore of high nickel grade, it was necessary to recover the level pillar. Because of special need of safety, underhand heading cut-and-fill stoping method was used. For the first two layers of heading, the cemented fill materials were a mix of water and high-aluminum-content cement with silicate gelling agent; and for other heading layers, total tailings was added into the fill mix in order to reduce the cement consumption. Finally, the level pillar was recovered successfully.
  • Mineral

    Recovery of Level Pillar between Open-pit and Underground Mine by Using Underhand Heading Fill Method

    + Author Affiliations
    • The upper part of the Fujia deposit was mined out by open-pit, and the lower part is being mined underground. The level pillar between open-pit and underground mine had a thickness of 24 m, a length of 300 m and a maximum width of 35 m. As the level pillar contained about 5.2 million ton ore of high nickel grade, it was necessary to recover the level pillar. Because of special need of safety, underhand heading cut-and-fill stoping method was used. For the first two layers of heading, the cemented fill materials were a mix of water and high-aluminum-content cement with silicate gelling agent; and for other heading layers, total tailings was added into the fill mix in order to reduce the cement consumption. Finally, the level pillar was recovered successfully.
    • loading

    Catalog


    • /

      返回文章
      返回