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系统的分析了“三软”煤层综采放顶煤工作面架前煤壁区冒落的原因 ,以及采取的预防措施和处理方法。
The reasons of the coal mined-out area in the “Three-soft” coal seam fully mechanized top coal caving face are systematically analyzed, and the preventive measures and treatment methods are taken.