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金属矿山 ›› 2016, Vol. 45 ›› Issue (05): 1-5.

• 采矿工程 •    下一篇

急倾斜中厚硅石矿体采矿方法研究

张文方,王文丽   

  1. 中国有色金属工业昆明勘察设计研究院,云南 昆明 650051
  • 出版日期:2016-05-13 发布日期:2016-08-18

Study on Mining Methods for Steeply Inclined Medium Thickness Ore Body

Zhang Wenfang,Wang Wenli   

  1. Kunming Prospecting Design Institute of China Nonferrous Metals Industry,Kunming 650051,China
  • Online:2016-05-13 Published:2016-08-18

摘要: 选择符合急倾斜中厚硅石矿体条件的上棉谷硅矿为试验基地,通过研究矿岩地质结构、物理力学性质以及矿山原有采矿方案,总结出硅石矿体回采时遇到的难题。针对硅石矿易碎,矿体顶板、底板稳定性差等采矿条件,提出采用无底柱分段崩落法进行回采,同时提出溜矿井中留矿的方案,来减轻矿石的二次冲击磨损,最后通过采场试采证明了其适用于急倾斜中厚硅石矿体的回采,且效果良好。

关键词: 硅石矿, 急倾斜, 无底柱分段崩落法, 中厚矿体, 溜矿井

Abstract: The Shangmian valley silicon mine with steeply inclined thick silica ore is chosen as the test base.Difficulties in exploration of mine silica ore are summarized through the study of geological structure,physical and mechanical properties and original mining scheme of mine.For the mining conditions in silica mine such as easy fragile,poor stability of ore roof and floor,the pillarless sublevel caving method is put forward.At the same time,a scheme that ores are remained at ore chute is proposed to reduce the secondary impact wear of ore.The production test of mine proved that the scheme was suitable for stoping of steeply inclined thick silica ore with good effect.

Key words: Silica mine, Steep inclination, Non-pillar sublevel caving method, Medium thickness ore body, Ore chute