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通过对阳煤集团三矿沿空巷道及其隔离煤柱的矿压观测结果分析,得出巷道发生破坏变形的主要原因;确定采用缩小K8104与K8106工作面之间煤柱尺寸的方法控制矿压显现,工业性试验的矿压观测数据表明,试验巷道在掘进和回采期间基本保持稳定,提高了煤炭采出率和经济效益。
Through the analysis of the pressure observation results of the gob-side entryway and its isolated pillars in the No.3 Coal Mine of Yangquan Coal Mine, the main reason for the failure and deformation of the roadway was obtained. The method of reducing the coal pillar size between the K8104 and K8106 faces was determined The mineral pressure observation data of industrial experiments showed that the test roadway basically remained stable during excavation and recovery, and increased the coal recovery rate and economic benefits.