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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.
Based on the engineering geology of the working face and the mining relationship between the upper and lower face of the coal seam group, the method of pressure measuring instrument and the software FLAC3D were used to analyze the influence of the 22189 working face mining on the supporting pressure of 22155 roadway. The paper analyzes the influence of 22189 working face mining on the supporting pressure distribution of 22155 roadway by the method of mining stress in 22185 working face and the upper 22155 transportation lane The front support pressure is approximately a parabolic distribution. At about 15 m from the coal wall, the support pressure reaches a peak value, and the peak pressure of the support pressure of the 22155 transport lane lags a little behind the return pressure of 22,189 return airways.