In order to ensure the safe mining of the fully mechanized caving face with isolated island upward mining of rock burst,the risk of impact in the MZ21010 working face of Changcun Coal Mine is analyzed and evaluated from various factors and numerical simulation that affect rock burst.According to the principle of"three limits and three strengths"for rock burst prevention,the parameters of various rock burst prevention measures are optimized,and comprehensive rock burst prevention measures are implemented for the working face.Based on the analysis of various monitoring indicators in the three months of mining,the rock burst prevention measures taken at the working face achieve good results.
关键词
冲击地压/孤岛/仰采/防冲措施
Key words
rock burst/isolated island/upward mining/rock burst prevention measures
维普
万方数据