中文摘要：

为了研究动载扰动下厚煤层底板冲击地压发生的原因，结合某矿3下02工作面具体开采奈件，运用FLAC^3D数值模拟软件，分析了扰动应力波峰值强度分别为10，20，40，60MPa时巷道底板的塑性区、垂直应力的分布规律，再现了动载作用下巷道底板的破坏过程，揭示了不同应力波峰值强度扰动诱发厚煤层底板冲击的动态响应规律。结果表明：随着扰动应力波峰值强度的增加，底板岩层的破裂范围逐渐扩大，应力集中程度逐渐升高，从而发生冲击地压的概率也就相应的增大。

英文摘要：

In order to study the causes of rock burst under dynamic disturbance in thick coal seam floor, combining with the conditions of working face in a coal mine, distribution rules of plastic zone and vertical stress in drift floor were an alyzed by FLAC^3D when the peak strength of disturbing .stress wave was respectively 10, 20, 40 MPa and 60 MPa. And the failure process of drift floor was displayed. The dynamic response rules of rock burst induced by different peak stresses were revealed in thick coal seam. The results showed that along with the increase of peak strength of disturbing stress wave, the failure range in floor rock was gradually expanded and the stress concentration was also improved, which would enlarge the probability of rock burst.