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结合三河口煤矿 2 31 (1 )采面顶板淋水的实际情况 ,分析了顶板出水的原因 ,采取加大支护密度以及对出水进行疏排等手段 ,保证采面的安全生产。
Combined with the actual situation of 231 (1) roof watering in Sanhekou coal mine, the reasons of roof water outflow were analyzed, and the measures of increasing supporting density and discharging water were carried out to ensure the safe production of mining face.