No-top Network Bottom Slice Fully Mechanized Mining Technology in Coal and Gas Outburst Thick Seam

This paper summarizes and studies the key technologies of "three machines" allocation modes, mining technique, roof control, fire prevention and extinguishing and so on by fully mechanized mining test at 5111B₁₁ bottom slice mining face in Xieyi Mine, and the fully mechanized mining in bottom slice thick seam with coal and gas outburst is realized.