Study on rapid excavation construction technique in semi-coal lane of large cross-section

According to the geological conditions of 1204 roadway, combined with the existing excavation equipment and technical conditions, the paper applied the new support equipment, optimized and arranged the construction process, analyzed the impact factor of rapid excavation, in the premise of the improvement of operating environment and the labor intensity to achieve the safe and rapid excavation of semi-coal lane of large cross-section.