Study on mechanism of rock burst induced by gob-side entry in inclined coal seam mining in Junde Coal Mine

In view of the frequent occurrence of rock burst induced by gob-side entry in inclined coal seam mining in Junde Coal Mine, field investigation, microseismic monitoring, physical analogy simulation and numerical simulation were used to carry out the research.The results show that the key overlying strata near gob-side entry in inclined coal seam mining are more likely to break and produce violent dynamic load disturbance; with the decrease of coal seam inclination angle, the stress concentration degree along the roadway pillar in gob-side entry decreases, the stress concentration degree of solid coal side increases, and the stress concentration transfers from the pillar side to the solid coal side; the dynamic and static load leads to the instability failure of the two sides of the roadway coal body to induce rock burst, and the impact starting area of different inclined coal seam is different.The research results provide some guidance for pressure relief and scour prevention in the following mining stage of inclined coal seam working face.