【摘要】 槽波地震是探查采煤工作面内部小断层或其他地质异常中的有效手段,但以往对槽波中蕴含的频散信息利用不足。采用二维高阶交错网格法模拟了煤层槽波的波场发育特征,激发震源采用横波震源,模型边界吸收采用完全匹配层法。从模拟结果可以看出:与传统槽波理论认识不同,槽波的能量不仅分布在基阶模式,高阶部分的能量也很强,这对于今后的煤矿井下槽波勘探具有一定的参考意义。更多还原

【Abstract】 In-Seam Seismic(ISS) is effective means to detect the small faults or other geological anomalies within the coal mining face,but the dispersive information in the channel waves could not be fully utilized in the previous application.The 2D high order staggered network method was applied to simulate the development features of the seam channel wave field.The horizontal wave seismic source was applied to the excitation sources.The Perfectly Matched Layer(PML) method was applied to the boundary absorption of the model.The simulation results showed that in comparison with the different understanding to the traditional channel wave theory,the channel wave energy could distribute in the basic model and the energy of the high order part would be also high and could provide the certain references to the underground mine channel wave exploration in the future.更多还原