In this paper, order to comprehensively study the mechanism of rock burst induced by coal pillar under the condition of hard-thick roof strata, using numerical simulation and on-site data monitoring, the characteristics of overlying rock movement in the process of fully mechanized top coal caving mining under the condition of hard-thick roof strata was studied, the mechanism of rock burst behavior in the working face was analyzed, and the potential risk of rock burst in the subsequent mining process was analyzed. The results show as follows: Influenced by the coal pillar, hard-thick roof strata and the ahead supporter pressure, the stress of surrounding rock and supporter pressure in the middle and lower part of the working face and near the coal pillar in the section are obviously greater than that of the upper roadway area, which is easy to produce the ruck burst induced by coal pillar and hard-thick roof strata; when the workface is close to the boundary of "knife-shape-like" gob, the boundary stress of the I010405 gob can be transferred down to I010203 workface and stacked with lateral and advanced supporter stress. Finally, the three supporter stress formed, which would cause rock burst hazard of I010203 workface to increase. At this stage, more efforts should be made to prevent the impact of the I010203 workface to pass through the dangerous area smoothly. The rock burst of the field monitoring is consistent with the theoretical analysis results. The research results can provide reference for the prevention and control of rock burst in similar conditions.
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