| 特厚煤层综放开采上覆岩层导水裂隙带高度研究 |
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| 引用本文： | 吕霁,孙世国. 特厚煤层综放开采上覆岩层导水裂隙带高度研究[J]. 中国煤炭, 2010, 36(1) |
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| 作者姓名： | 吕霁 孙世国 |
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| 作者单位： | 北方工业大学,北京市石景山区,100144 |
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| 摘 要： | 针对老虎台矿区复杂地质条件和特厚煤层综放开采方法,应用数值模拟方法对综放开采诱发的导水裂隙带高度进行了研究。根据所得的应力结果确定了导水裂隙带高度并对其演变规律进行分析。应用现场钻孔注水实验结果对其进行验证,结果基本一致,从而可以确定所得上覆岩体导水裂隙带范围和高度的合理性,可用以指导后续开采的设计和安全防护。
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| 关 键 词： | 特厚煤层 综放开采 导水裂隙带 |
A study on the height of water leaking fissures zone induced by top coal caving longwall mining in extra thick coal seams |
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| Lv Ji,Sun Shiguo. A study on the height of water leaking fissures zone induced by top coal caving longwall mining in extra thick coal seams[J]. China Coal, 2010, 36(1) |
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| Authors: | Lv Ji Sun Shiguo |
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| Affiliation: | Lv Ji,Sun Shiguo (North China University of Technology,Shijingshan District,Beijing 100144,China) |
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| Abstract: | With reference to the complicated geological conditions of Laohutai coal mine area and the top coal caving longwall technology in use there,numerical simulation method is used in an analysis of the water leaking fissure zone induced by top coal caving longwall mining.On the basis of the result of stress obtained,the height of the water leaking fissure zone is determined and then an analysis is done on its evolution.Experiment results of on-site drilling and water injection are used for verification and the ... |
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| Keywords: | extra coal seam top coal caving longwall mining water leaking fissure zone |
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