Optimization Design of Roadway Layout in Chahasu Coal Mine Fully Mechanized Working Face

According to the occurrence conditions of 3^# coal seam and layout characteristics of original roadway at working face in Chahasu Coal Mine, through the analysis of roof rock core analysis, multi-point displacement meter observation and field mine pressure measurement analysis, we obtain that the roof failure of roadway and the occurrence of intercalated dislocation between the lower rock strata is within the range of 0 to 3 m. To solve the above problems, the phenomenon of roadway support difficulty is solved by stagger arrangement coal mining method. The optimization scheme is designed and the working face is calculated, which can improve the recovery rate of 2.7%. It fully proves the practicability and reliability of the stagger arrangement coal mining method.