| 桓仁铅锌矿隔离矿柱留设方案模拟研究 |
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| 引用本文： | 刘洪磊,杨天鸿,许宏亮,黄德玉,刘爱军.桓仁铅锌矿隔离矿柱留设方案模拟研究[J].地下空间与工程学报,2012,8(4):785-790. |
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| 作者姓名： | 刘洪磊 杨天鸿 许宏亮 黄德玉 刘爱军 |
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| 作者单位： | 1.东北大学资源与土木工程学院,沈阳 110819;2.中冶北方工程技术有限公司,辽宁 鞍山 114002;3.桓仁矿业有限公司,辽宁 本溪 117207 |
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| 基金项目： | 国家自然科学基金重点项目，国家自然科学基金，教育部直属高校基本科研业务费团队项目，教育部直属高校基本科研业务费研究生项目 |
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| 摘 要： | 桓仁铅锌矿地表不允许崩落。由于诸多因素,在矿井下形成了大量的采空区,而采空区的下部还赋存大量矿体急需开采。为了避免采空区塌陷引起的冲击地压带来的安全隐患,满足矿山生产需要,采用留设隔离矿柱方法来隔离上部采空区,避免冲击地压作用。应用FLAC3D程序,通过研究隔离矿柱留设位置、隔离矿柱厚度等因素,分析了留设隔离矿柱对整个采空区应力分布的影响及矿柱自身稳定程度。研究表明,在向阳坑-630水平留设14 m厚的隔离矿柱可以有效缓解应力集中程度及分散地压分布,继而能够保证后续深部矿体安全高效开采。
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| 关 键 词： | 采空区处理 采矿工程 隔离矿柱 有限元分析 |
| 收稿时间： | 2012-02-10 |
Simulation Study on Schemes for Interval Ore Pillar in Huanren Lead-zinc Mine |
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| Liu Honglei
,
Yang Tianhong
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Xu Hongliang
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Huang Deyu
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Liu Aijun.Simulation Study on Schemes for Interval Ore Pillar in Huanren Lead-zinc Mine[J].Chinese Journal of Underground Space and Engineering,2012,8(4):785-790. |
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| Authors: | Liu Honglei Yang Tianhong Xu Hongliang Huang Deyu Liu Aijun |
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| Affiliation: | 1.School of Resources Civil Engineering,Northeastern University, Shenyang 110004,China;2.Northern Engineering&Technology Corporation,Anshan, Liaoning 114002,China;3.Huanren Mining Corporation,Benxi, Liaoning 117207,China |
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| Abstract: | Surface subsidence is not allowed in Huanren lead-zinc mine.In this mine a lot of goaf were formed underground because of various reasons.In addition,lots of orebodies under the goaf still need mining.To prevent the potential danger of rock burst and ensure the normal deep orebodies mining,the interval ore pillar should be remained to ensure safety.The 3D FEM code FLAC is applied.And then,the thickness and position of interval ore pillar are studied by the 3D FEM.The influence of stress distribution in the whole goaf is analyzed.The results show that the interval ore pillar are remained in-630 level with 14m thick which can effectively share stress distribution.It also can ensure following safe mining. |
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| Keywords: | goaf disposal mining engineering interval ore pillar finite-element analysis |
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