Outburst Prevention Technology for Driving Face of Outburst Coal Seams in Huainan Mining Area

摘要

In order to improve the outburst prevention efficiency for driving face of outburst coal seams,the practical application of local gas treatmenttechnology and joint technology of excavation and drainage in Huainan Mining Area are introduced according to actual conditions.On the basis of this,somefast outburst-eliminating technologies for excavation are studied,including hydraulic flushing;long-hole pre-splitting blasting for permeability improvement;and hydraulic extrusion etc.In addition,the in-situ application effect is investigated,showing that this method has provided an effective technological way foroutburst prevention ofddviag face.