Research on Collaborative Treatment Technology for Energy Release of Surrounding Rock in Tunnels Affected by Spatial Cross Dynamic Pressure
Taking the actual geological conditions of Xiaojiawa Coal Mine in Shanxi Province as the engineering background,aiming at the cross-strong dynamic pressure development of the working face of 221302 coal seam in 13# coal seam by the overlying 8# coal seam and the mining face of adjacent 13# coal seam,by analyzing the influence mechanism of the co-mining dynamic pressure of the upper and lower coal seams and the deformation and failure law of surrounding rock,this paper puts forward the joint management technology of cutting the narrow coal pillar along the gob and protecting the roadway by hydraulic fracturing to ensure the safe and rapid advance of the 13# coal seam caving face and ensure the high yield and high efficiency of the mine.
space crossingdynamic pressure displaydigging along gobsnarrow coal pillarhydraulic fracturing