Micro-seismic wave's propagation law and its numerical simulation

• 来源期刊: 煤炭学报（英文版）
• 年，卷（期）: 2006,（2）
• 页码范围: 40-42
• 页数: 3页
• 语种: 英文

摘要

Deduced the propagation rule of longitudinal and transverse wave. On the basis of this, propagation rules in attenuated visco-elastic media and varied Lame coefficient were put forward as well. The subsequent numerical analysis found that in a small scope longitudinal and transverse wave could be considered as homogeneously propagating when faultages and joints were not taken into account. The existence of lane hindered the wave's propagation, and it made the velocity gradient change in a local vicinity area.Therefore velocity varied in different direction.