The cross-layer tunneling of transport roadway and return airway crossheading for the 111808#working face of Meihuajing Coal Mine was taken as an example to study the problems existing in the tunnel-ing through layers and put forward corresponding measures.According to the effect of practical application,a continuous transportation system is quickly developed,which ensures safe and efficient transportation of road-way,and facilitates the normal mining-excavation succession in the mine.
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