Design and Practice of Coal Mining Technology Scheme for Large Angle Working Face
In order to solve the problems of unstable support system,backward sliding of supports,and low mining efficiency in a certain coal mine,the geological conditions of high dip coal seams were analyzed,and a inclined segmented mining scheme was proposed.The matching mechanical equipment was selected and applied in the working face.The results showed that the cyclic production of the working face was 268 tons,the monthly average progress was 56 meters,the monthly average production was 20 044 tons,and the recovery rate was 83%.The overall cost of working face operations has been reduced,and the mining efficiency has been improved.
large inclination angleoblique segmentationcoal mining technology
NETL
NSTL
万方数据
维普
