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结合潞安矿区近年煤层瓦斯压力的测定工作,分析了影响煤层瓦斯压力测定结果的因素,得出提高瓦斯压力测定成功率的方法:充分考虑煤层地质条件对测压的影响,加强对特殊地质构造的监测,并在测压时避开;通过分析认为潞安矿区的煤巷原始应力区为巷道宽度的3-5倍。对钻孔参数进行优化并选择合适的封孔工艺,同时使终孔位置避开巷道采动影响区。
Combining with the determination of gas pressure in coal seams in recent years in Lu’an Mining Area, the factors affecting the determination of gas pressure in coal seams are analyzed, and the method to improve the success rate of gas pressure measurement is obtained: full consideration of coal seam geological conditions on the impact of pressure measurement and strengthening of special geological structures And avoid it when measuring pressure. According to the analysis, the original stress area of coal roadway in Lu’an mining area is 3-5 times of the width of the roadway. Optimize the drilling parameters and select the appropriate sealing technology, while leaving the final hole location to avoid mining influence zone.