| 东升庙矿柱回采顺序研究 |
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| 引用本文： | 张永亮.东升庙矿柱回采顺序研究[J].矿业研究与开发,2011(2):4-7. |
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| 作者姓名： | 张永亮 |
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| 作者单位： | 西北矿冶研究院; |
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| 摘 要： | 对东升庙铅锌矿矿柱的形成与分布进行分析和调查.随着矿柱的回采,空区暴露面积增大,其冒落形成的空气冲击波将会造成巨大的危害.运用空气冲击波理论,计算了采空区临界冒落面积,得出空区允许的最大跨度为159m;对不同回采顺序的矿柱应力分布进行了分析,最终提出了从中央向端部推进的矿柱回采顺序.
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| 关 键 词： | 矿柱回采 空气冲击波 平衡拱 临界冒落面积 回采顺序 |
Study on Recovery Sequence of Ore Pillar in Dongshengmiao Lead-zinc Mine |
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| ZHANG Yongliang.Study on Recovery Sequence of Ore Pillar in Dongshengmiao Lead-zinc Mine[J].Mining Research and Development,2011(2):4-7. |
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| Authors: | ZHANG Yongliang |
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| Affiliation: | ZHANG Yongliang(Northwest Institute of Mining and Metallurgy,Baiyin,Gansu 730900,China) |
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| Abstract: | The occurrence and distribution of ore pillars was analyzed and investigated.With the recovery of ore pillars and the increase of exposed area in mined-out areas,rock caving may happen,and air shock wave caused by rock caving may result in great harm.The critical collapse area of mined-out area was calculated by use of shock wave theory,and the calculated maximum of permissible span of mined-out area is 159 m.The distributions of pillar stress for different recovery sequences of pillars were analyzed.The pi... |
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| Keywords: | Recovery of ore pillars Air shock wave Balance arch Critical collapse area Recovery sequence |
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