Layered Filling Method Lateral Blasting Mining Technology and Field Test
A certain coal mine adopts the approach filling mining method,which has problems such as low average production capacity,high ore tailings impoverishment rate,high difficulty in adjusting the mining filling cycle technology,and traditional support methods that cannot meet existing requirements.Therefore,a layered filling method lateral blasting mining process using a combination of anchor rods and steel tube concrete pillars is proposed.The results of on-site tests show that the recovery efficiency of the lateral blasting process is 1.91 times that of the excavation method,and the average daily production capacity of the test mining site is increased to 95 tons.It can also reduce the tailings impoverishment rate and improve economic benefits.
NETL
NSTL
万方数据
