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| 下伏煤层开采对上方运输巷支承压力
分布的影响 |
| Study on underlying seam mining affected to the abutment pressure distribution of upward mine transportation roadway |
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| DOI： |
| 中文关键词: 运输巷 采动影响 支承压力 数值计算 |
| 英文关键词: mine transportation roadway mining influence abutment pressure numerical calculation |
| 基金项目:国家自然科学基金(51274096；51174086) |
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| 摘要点击次数: 2580 |
| 全文下载次数: 2654 |
| 中文摘要: |
| 以山脚树矿22189工作面回采对22155运巷支承压力影响为工程背景,根据工作面的工程地质情况及煤层群上下工作面开采关系,分别采用压力测量仪测量的方法和利用FLAC3D软件对采后运输大巷所处位置应力分布情况模拟的方法,研究了山脚树矿22189工作面回采对22155运巷的支承压力分布的影响.结果表明:受22189回采工作面的采动影响,上部22155运输巷前方支承压力大致呈抛物线分布,在距煤壁大约15 m位置处,支承压力达到峰值,并且22155运输巷支承压力峰值稍微滞后22189回风巷压力峰值. |
| 英文摘要: |
| The mining of Shanjiaoshu Mine 22189 working face affect 22155 transportation roadway was taken as the engineering background, according to the engineering geology condition of the working face and the relation of upper and lower working face mining in coal seam group, using pressure measurement instrument to measure abutment pressure and using the method of FLAC3D software simulation on the stress distribution of 22155 transportation roadway. The effect was studied that of the mining of Shanjiaoshu Mine 22189 working face to 22155 transportation roadway abutment pressure distribution. The results show that in the mining influence of 22189 working face, the front abutment pressure of upper 22155 transport roadway is approximately parabola distribution, it is about 15m from the coal wall position, the abutment pressure reaches a peak, and 22155 transport roadway supporting pressure peak slightly lag 22189 return airway pressure peak. |
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