| 房采采空区上方近距煤层反程序开采数值仿真 |
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| 引用本文： | 顾铁凤. 房采采空区上方近距煤层反程序开采数值仿真[J]. 煤矿开采, 2011, 16(1): 32-35,107 |
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| 作者姓名： | 顾铁凤 |
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| 作者单位： | 太原理工大学,理学院工程力学系,山西,太原,030024 |
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| 基金项目： | 国家科技支撑计划项目(2007BAD29B02); 山西省科技攻关项目(200631118-02); 山西省自然科学基金(200601047)联合资助 |
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| 摘 要： | 基于神东矿区寸草塔矿的近距煤层赋存条件,应用ANSYS仿真方法研究以往房采采空区上方的近距煤层反程序开采的可行性.其主要结论是:(1)下部2-2上煤房柱开采后,留设6m煤柱稳定,其顶板稳定未垮落;(2)2-1中煤层可用反程序长壁开采;(3)2-1中煤层长壁开采时,底板保持稳定;(4)2-1煤层开采时,地表最大下沉613...
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| 关 键 词： | 房采采空区 近距煤层 反程序开采 顶(底)板稳定性 数值仿真 |
Numerical Simulation of Upward Mining Coal Seam Near over Gob Left by Room and Pillar Mining |
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| GU Tie-feng. Numerical Simulation of Upward Mining Coal Seam Near over Gob Left by Room and Pillar Mining[J]. Coal Mining Technology, 2011, 16(1): 32-35,107 |
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| Authors: | GU Tie-feng |
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| Affiliation: | GU Tie-feng(Engineering Mechanical Department of Science School,Taiyuan University of Science & Technology,Taiyuan 030024,China) |
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| Abstract: | ANSYS was applied to researching the feasibility of upward mining coal seam near over gob left by room and pillar mining based on coal-seam occurrence condition of Cuncaota Colliery in Shendong mining field.Main results were list as follows.(1) 6m coal pillar and its roof kept stable after lower 2-2-upper coal seam was mined by room and pillar mining method;(2) 2-1-middle coal seam might be mined by upward mining method;(3) floor of 2-1-middle coal seam kept stable by longwall mining method;(4) in 2-1-middl... |
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| Keywords: | gob left by room and pillar mining close coal seams upward mining stability of roof(floor) numerical simulation |
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