Conclusion

The control of rockburst disasters in ultra-thick coal seams is a huge challenge faced by the mining industry and the field of rock mechanics. This paper takes several serious rockburst accidents in ultra-thick coal seams in Xinjiang and Shandong mining areas as the engineering background, and targets the common problems of long disaster incubation time in ultra-thick coal seams, the overall rockburst disaster prone to “simultaneous rockburst of the working face and two roads”, and the simultaneous disaster caused by rockburst and large deformation.