Fast Excavation in Rock Laneway of Xuchang Coal Mine

At present,the excavation level of rock laneway is low,which badly influences the continuous production of coal mine.Aiming at the main factor which restricts the excavation level of rock laneway of Xuchang Coal Mine, the original operation mold two times of excavations and one gunite is changed into the new onethree times of excavations and gunites.At the same time,the original blasting parameters and strengthens labor organization are optimized.The purpose of increasing drilling footages per month is ultimately realized.