| 煤层夹矸对采场应力分布的影响 |
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| 引用本文： | 周涛,刘长友,杨伟.煤层夹矸对采场应力分布的影响[J].煤炭技术,2011,30(9). |
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| 作者姓名： | 周涛 刘长友 杨伟 |
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| 作者单位： | 中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州,221008 |
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| 摘 要： | 煤层含矸率较高给煤矿正常生产造成了一定的影响。鉴于煤层含矸条件下工作面超前支承压力的研究相对较少,本文采用离散元数值模拟软件UDEC2D4.0,针对夹矸厚度和硬度不同的煤层进行数值计算,分析夹矸层对工作面支承压力的影响,得到含矸煤层的支承压力分布规律,为指导现场生产提供依据。
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| 关 键 词： | 夹矸 厚度 硬度 应力分布 |
Effect of Coal-bed Gangue on Stress Distribution in Mine Stope |
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| ZHOU Tao,LIU Chang-you,YANG Wei.Effect of Coal-bed Gangue on Stress Distribution in Mine Stope[J].Coal Technology,2011,30(9). |
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| Authors: | ZHOU Tao LIU Chang-you YANG Wei |
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| Affiliation: | ZHOU Tao,LIU Chang-you,YANG Wei(State Key Laboratory of Coal Resources and Mine Safety,China University of Mining & Technology,Xuzhou 221008,China) |
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| Abstract: | The higher rate of coal-bed gangue caused some effects on the coal production.In view of few study on lead abutment pressure on face of the coal seam with dirt,this paper uses discrete element simulation software UDEC2D4.0 numerically simulated the coal seam with dirt band of different thickness and hardness,analyses the influence of coal-bed gangue on bearing stress.The distribution of bearing pressure in the coal seam with dirt band is mastered,which provides a reliable basis for guiding the coal producti... |
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| Keywords: | dirt band thickness hardness stress distribution |
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