Research on the pressure releasing techonology with water-affusion into coal in concentrated stress area

In order to study about the pressure releasing techonology with water-affusion into coal in concentratedstress area,according to the issue of the roadway easily deformation and rock burst in high stress area of deep mine,the FLAC-3D value simulation software was applied to simulate the coal moisture scope and release of pressure in concentrated stress areas where take the different water injection scheme,the results showed that the wet area of the coal was the largest and the stress get a batter transfer or released in concentrated stress area in mining face where the three injection hole which every 15 m that 10 m far away from cut eye take the dynamic water injection pressure at the same time.With the practices in the projects,the rationality of the simulation plan was verified and the water-affusion parameters were optimized.