桂林理工大学学报Issue(4)：629-633,5.DOI:10.3969/j.issn.1674-9057.2013.04.009
基于软弱夹层模型的瑞雷面波各模式相速度敏感性分析
Sensitivity Analysis of Multiple Modes Rayleigh Waves Phase Velocity by Low-Velocity Interlayer Model
摘要
Abstract
The sensitivity of multiple modes Rayleigh waves phase velocity are analyzed based on a low-velocity interlayer model.The results show that the wave phase velocity of multiple modes is very sensitive to the shear velocity of low-velocity interlayer and thickness of the layer.The wave phase velocity is more sensitive to the shear velocity than thickness of the layer.The sensitive band of fundamental model is concentrated in a narrow band of low frequency.Inverting Rayleigh waves of fundamental and higher modes can effectively improve the accuracy of inverted S-wave velocities.The sensitivity of multiple modes Rayleigh waves phase velocity to the shear velocity of low-velocity interlayer and thickness of the layer show that Rayleigh surface wave method is suitable for low-velocity interlayer survey.关键词
瑞雷面波/软弱夹层/频散曲线/横波速度/层厚/敏感性Key words
Rayleigh wave/low-velocity interlayer/dispersion curve/shear velocity/thickness of layer/sensitivity分类
天文与地球科学引用本文复制引用
周文宗,熊章强,张大洲..基于软弱夹层模型的瑞雷面波各模式相速度敏感性分析[J].桂林理工大学学报,2013,(4):629-633,5.基金项目
国家自然科学基金项目（41004047；41274123）；中南大学自由探索计划资助项目 （）
