下分层回采巷道破坏原因及预防

Breakdown Causes of Lower Slicing Roadway and the Countermeasure

通过对大同煤矿集团公司忻州窑矿厚煤层下分层回采巷道破坏特征、支架损坏原因的分析,提出了下分层巷道安全掘进和回采超前管理的对策。

The article analyses specifications of the lower slicing roadways and the supports breakdown causes for the thick coal seams in the Xinzhou Mine of Datong coal mines group Co. and puts forward the countermeasures of safe development and advance extracting managements.