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结合红山煤矿井下掘进实际,介绍了过空区(巷)时的掘进、支护等经验,对在旧采破坏煤田内形成长壁工作面有较强的参考价值.“,”Combined with practice of driving technology under coal mine,this paper introduces experience of driving and supporting and reference is provided for coal wall formed in damaged coal-filed of old goaf.