夹层厚度对瑞利面波频散曲线的影响

Sandwich thickness impacting the dispersion curves of Rayleigh surface wave

文章以弹性波横波速度为参数,利用瑞利面波频散曲线的快速标量传递算法进行正演模拟计算,系统研究软弱层厚度对瑞利面波基阶模频散曲线的影响,分析和总结了频率与相速度(f-c)、频率与波数(f-k)、深度与相速度(h-c)等瑞利面波基阶模曲线随软弱层厚度变化的规律。

Taking transverse wave velocity of elastic wave as a parameter, using fast scalar transferring arithmetic of dispersion curves of Rayleigh surface wave to operate forward modeling calculation, the study has systematically investigated the effect on base model dispersion curves of Rayleigh wave caused by thickness of soft and weak sandwich, and analyzed and concluded the changing rules of frequency and phase velocity （f- c）, frequency and wave velocity （f-k）, depth and phase velocity （h-c） and other base model curves of Rayleigh surface wave with different thickness of soft and weak sandwich.