| 设回收进路的无底柱分段崩落法在玉石洼铁矿的应用 |
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| 引用本文： | 任凤玉 马运时. 设回收进路的无底柱分段崩落法在玉石洼铁矿的应用[J]. 金属矿山, 1995, 0(7): 8-12 |
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| 作者姓名： | 任凤玉 马运时 |
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| 作者单位： | 东北大学，玉石洼铁矿 |
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| 摘 要： | 玉石洼铁矿１７０ｍ中段，应用设回收进路的无底柱分段崩落法开采矿岩软破的缓倾斜中厚矿体，取得了较好的技术经济效果。本文介绍该采矿法的顶板围岩处理方法、回采进路的凿岩爆破参数以及减小矿石贫化率的综合技术措施等。
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| 关 键 词： | 无底柱 分段崩落法 底板 回收讲路 铁矿 采矿 |
Application of Sublevel Caving without Floor Pillar Method to.set up Rccovery Drirt in Yushiwa Iron Mine |
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| Ren Fengyu,Liu Xingguo,Ma Yunshi. Application of Sublevel Caving without Floor Pillar Method to.set up Rccovery Drirt in Yushiwa Iron Mine[J]. Metal Mine, 1995, 0(7): 8-12 |
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| Authors: | Ren Fengyu Liu Xingguo Ma Yunshi |
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| Affiliation: | Ren Fengyu;Liu Xingguo;Ma Yunshi |
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| Abstract: | he application of sublevel caving without floor pillar method to set up recovery drift intoning flat-dipping and medium thick ore-body with both ore and rock being weak and break at 170mlevel of Yushiwa Iron Mine has obtained the better economic effect.The paper presents the treatmentmethod for top surrounding rock of this mining method, the drilling-blasting parameters of recoverydrift and the comprehensive measure of decreasing ore dilution rate and so on. |
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| Keywords: | Sublevel caving without floor pillar method Recovery drift in floor |
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