| 综放开采割煤高度与顶煤回收率相互关系研究 |
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| 引用本文： | 毛德兵.综放开采割煤高度与顶煤回收率相互关系研究[J].煤矿开采,2009,14(4):13-15. |
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| 作者姓名： | 毛德兵 |
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| 作者单位： | 天地科技股份有限公司,开采设计事业部,北京,100013;煤炭科学研究总院,开采设计研究分院,北京,100013 |
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| 基金项目： | "十一五"国家科技支撑计划课题"大采高综放开采工艺技术研究(2008BAB36B01)" |
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| 摘 要： | 采用PFC数值分析程序对综放开采支架上方顶煤的放出进行了模拟,分析了一定厚度顶煤条件下割煤高度与顶煤回收率的关系以及2种不同割煤高度条件下顶煤回收率与顶煤厚度的关系。模拟结果表明,割煤高度越大,顶煤回收率越高,大采高综放开采有利于提高特厚煤层工作面资源采出率。
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| 关 键 词： | 综放开采 割煤高度 顶煤回收率 |
Research on Relationship of Mining Height and Recovery of Top-coal in Full-mechanized Caving Mining |
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| MAO De-bing.Research on Relationship of Mining Height and Recovery of Top-coal in Full-mechanized Caving Mining[J].Coal Mining Technology,2009,14(4):13-15. |
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| Authors: | MAO De-bing |
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| Affiliation: | 1.Coal Mining & Designing Department;Tiandi Science & Technology Co.;Ltd;Beijing 100013;China;2.Coal Mining & Designing Branch;China Coal Research Institute;China |
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| Abstract: | This paper applied numerical simulation to researching caving process of top-coal above powered support and analyzed relationship of mining height and recovery of top-coal under condition of fix thickness of top-coal and 2 different thicknesses.Result showed that mining height was larger;recovery of top-coal was higher.Full-mechanized caving mining with large mining height was good for increasing resource recovery in extremely thick coal seam. |
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| Keywords: | full-mechanized caving mining mining height recovery of top-coal |
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