| 特厚煤层综放开采支架工作阻力的确定 |
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| 引用本文： | 于雷,闫少宏,刘全明.特厚煤层综放开采支架工作阻力的确定[J].煤炭学报,2012,37(5):737-742. |
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| 作者姓名： | 于雷 闫少宏 刘全明 |
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| 作者单位： | 1.煤炭科学研究总院 开采设计研究分院，北京，100013；;
2.天地科技股份有限公司 开采设计事业部，北京，100013 |
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| 基金项目： | “十一五”国家科技支撑计划资助项目 |
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| 摘 要： | 采用理论分析的方法对特厚煤层综放开采顶板岩层所成结构及支架工作阻力进行了研究.根据特厚煤层综放开采顶板岩层形成的“悬臂梁-铰接岩梁”结构，给出了直接顶、基本顶的新概念及判据；得出了特厚煤层综放开采支架工作阻力的解析计算式，并进行了实例验证.最后对所选架型现场的动态承载特征及其适应性进行了分析.结果表明：依据支架工作阻力解析式计算结果所选架型可靠性高、支架运行合理，利用率高，对工作面顶板条件适应性较好。
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| 关 键 词： | 特厚煤层 综放开采 “悬臂梁-铰接岩梁”结构 直接顶 基本顶 |
| 收稿时间： | 2011-06-03 |
Determination of support working resistance of top coal caving in extra thick coal seam |
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| YU Lei,YAN Shao-hong,LIU Quan-ming.Determination of support working resistance of top coal caving in extra thick coal seam[J].Journal of China Coal Society,2012,37(5):737-742. |
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| Authors: | YU Lei YAN Shao-hong LIU Quan-ming |
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| Affiliation: | 1,3(1.Coal Mining & Design Branch,China Coal Research Institute,Beijing 100013,China;2.Coal Mining & Design Department,Tiandi Science & Technology Co.,Ltd.,Beijing 100013,China;3.Tiandi Science & Technology Co.,Ltd.,Beijing 100013,China) |
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| Abstract: | Based on the theoretical analysis,the roof structure and support loading of top coal caving in extra thick coal seam was studied.According to the roof structure of top coal caving in extra thick coal seam is "cantilever beam-articulated rock beam",the new concept and criterion of immediate roof and main roof were given,the analytic expression of support working resistance with top coal caving in extra thick coal seam was concluded and verified by examples,and dynamic loading characteristics and adaptability of selected support were analyzed.The results show that the selected support has high reliability,running reasonability,high utilization rate and better adaptability. |
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| Keywords: | extra thick coal seam long wall with top coal caving structure of 'cantilever beam-articulated rock beam' immediate roof main roof |
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