Practices on Selection and Application of Hydraulic Powered Support for Fully Mechanized Coal Mining Face

In order to select a hydraulic powered support suitable for mining conditions of the coal mining face in No. 15 seam of Jincheng Mining Area and to realiz e the mine high production and high efficiency, based on the application experiences of the ZZ6000/17/32 mode hydraulic powered support applied in No.15 seam minin g of Wangtaipu Mine and the mine strata pressure observation information, the powered support stressed conditions in No.2306 coal mining face of the mine were studi ed when the immediate roof initially fell down, the main roof initially pressurized, the main roof pressurized periodically and pressurized non-periodically.A study and an alysis on the insufficient rated working resistances of the support in the coal mining face and the problems existed in the powered support were conducted.The results s howed that the ZY 10000/16/32D mode two legs shield powered support selected for the coal mining face would have good suitability to the mining conditions of No.15 s eam in the mining area.