Analysis and Prediction on Rock Burst Danger Occurred from Thick Seam Mining in Deep Mine

In order to solve the prevention and control problems of the deep mining depth and the mutual influences of rock burst to the multi seam mining in No. 11 Mining Block of Jining No.2 Mine, with the study on the coal and rock burst tendency, ground stress value, mining depth, roof and floor strata properties of the seam, g eological structure, magmatite intrusion and other rock burst influence factors of the mining block, the comprehensive index method was applied to predict the danger of rock burst and to further analyze the stress condition, energy condition and turbulence condition of the mine strata bumping occurred. Based on the circumstances, rock burst danger of the coal mining face in No.11 mining block was comprehensively predicted and the bumping danger areas were divided. The predicted results were alm ost met the site reality and with the predicted results, the prevention and control of rock burst were successfully conducted.