关键词: 冲击地压, 冲击倾向性试验；冲击能量指数；弹性能量指数；动态破坏时间。

Abstract: Coal impact of tendentious research is an important part of rock burst mechanism research and an important part of the rock burst prediction and prevention foundation. According to characteristics of Yima group′s Yuejin Coal Mine, this paper using RMT-150 test system on the exploitation of coal mine and roof rock to do the tendency of coal and rock impact test; obtained the coal of mining and its roof rock have the impact of weak tendencies. Combined with the Yuejin Coal Mine actual mining conditions, the impact should be strengthened to pressure the prediction and prevention work to ensure that mine production safety .

Key words: rock burst, rock burst tendency experiment； impact energy index； elastic energy index； dynamic destruction time。