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现代矿业 ›› 2023, Vol. 39 ›› Issue (4): 47-.

• 采矿工程 • 上一篇    下一篇

长安金矿缓倾斜薄矿体全面房柱法开采及工艺优化

刘永文1 周宗红2 张俊杨2 何洪1 杨世东1   

  1. 1. 云南黄金集团金平长安矿业有限公司;2. 昆明理工大学国土资源工程学院
  • 出版日期:2023-04-25 发布日期:2023-05-25
  • 基金资助:
    *国家自然科学基金项目(编号:51864023)。

Comprehensive Room-pillar Mining and Process Optimization of Gently Inclined Thin Ore Body in Chang'an Gold Mine

LIU Yongwen1 ZHOU Zonghong2 ZHANG Junyang2 HE Hong1 YANG Shidong1   

  1. 1. Jinping Changan Mining Co.,Ltd.,Yunnan Gold Mining Group; 2. Faculty of Land Resource Engineer⁃ ing,Kunming University of Science and Technology
  • Online:2023-04-25 Published:2023-05-25

摘要: 长安矿段1 500 m以下矿体为微倾斜—倾斜、极薄—中厚矿体,赋存形态复杂,开采条 件复杂。根据矿床地质条件和开采技术经济条件,综合全面法和房柱法的优点,研究提出了改进的 全面房柱法。基于岩体质量分级结果,采用经验公式对采场结构参数进行计算分析,优选了合理的 矿房跨度为8.5~12.5 m,顶板暴露面积为700 m2,点柱直径为3 m、间距为6~7 m。方案收到了良好的 应用效果,可为类似矿山参考。

关键词: 缓倾斜薄矿体, 全面房柱法, 点柱尺寸, 矿房跨度

Abstract: The ore bodies below 1 500 m in Chang′an ore section are slightly inclined-inclined,extremely thin-medium thick ore bodies,with complex occurrence forms and complex mining conditions. According to the geological conditions of the deposit and the economic conditions of mining technology,an improved comprehensive room-pillar method is proposed by combining the advantages of the comprehensive method and the room-pillar method. Based on the results of rock mass quality classification,the empirical formula is used to calculate and analyze the structural parameters of the stope. The reasonable stope span is 8.5~12.5 m,the roof exposure area is 700 m2,the column diameter is 3 m,and the spacing is 6~7 m. The scheme has received good application results and can be used as a reference for similar mines.

Key words: gently inclined thin orebody, comprehensive room-pillar method, pillar size, mine room span