Study on safety and high efficient mining technology of irregular fully-mechanized top coal caving mining face

In order to improve the mining rate of the coal resources, in the mining process of the irregular coal mining face,a mining technology with the powered su pports and scraper conveyor installed while mining and with the powered supports and scraper conveyor disassembled and removed while mining and the coal caving t echnology at the face end gateway were applied to optimize the each operation link process, effectively solve the hard difficult coal mining problem caused by the geolo gical structure factors and could effectively mine the dead coal reserves. on the premise to ensure the safety, the mining technology with the irregular layout of the coal mining face and the matched technique could effectively improve the mining rate of the coal resources, could create the obvious social benefit and economic benefit and could accumulate the valuable experiences to the irregular mining of the fully-mechanized top coal caving mining face.