| 深部大采高综放工作面支承压力分布规律 |
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| 引用本文： | 刘啸,查文华,鲁德超,梁啸尘.深部大采高综放工作面支承压力分布规律[J].煤矿安全,2013,44(7). |
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| 作者姓名： | 刘啸 查文华 鲁德超 梁啸尘 |
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| 作者单位： | 安徽理工大学煤矿安全高效开采省部共建教育部重点实验室,安徽淮南232001;安徽理工大学能源与安全学院,安徽淮南232001 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 结合龙固矿2301大采高综放工作面地质及生产技术条件,通过理论分析、FLAC3D数值模拟及现场实测综合研究了工作面支承压力的分布规律。研究得出了工作面走向及倾向支承压力峰值的分布范围及峰值大小及应力集中系数,并揭示了支承压力随工作面的推进的分布规律,实测结果与数值模拟及理论分析结果相比误差较小。
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| 关 键 词： | 支承压力 综放工作面 大采高 综采放顶煤 数值模拟 |
Distribution Laws of Abutment Pressure for Deep Fully-mechanized Top-coal Caving Face With Large Mining Height |
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| Abstract: | Based on the geologic and production and technological conditions of 2301 fully-mechanized top-coal caving with large mining height face in Longgu Coal Mine,the paper have comprehensively studied distribution laws of abutment pressure by theoretical analysis,FLAC3D numerical simulation and in-sit observation.The study draws the working face trend and distribution range and peak value and stress concentration factor of the tendency support pressure,and reveals distribution laws of abutment pressure with the advancing of face.Compared to the numerical simulation and theoretical analysis,the errors of experimental results are small. |
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| Keywords: | abutment pressure fully mechanized caving face large mining height fully-mechanized top-coal caving numerical simulation |
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