One New Rayleigh Wave Velocity Analysis Method

摘要

Rayleigh wave survey is an important method to solve the near-surface geological problems,and an important technical part of this method is the extraction of the Rayleigh wave velocity.In this paper,drawing on the idea of the conventional reflection wave velocity analysis method,an effective analysis method of Rayleigh wave phase velocities in pan f-k domain is established based on 2D Fourier transform.In this method,the relationship among phase velocity vR,frequencyfand wave number k and the relationship between penetration depth H and wavelength λR are employed in order to transform the f-k spectrum into H-vR spectrum.The effectiveness of the method is proved by one set of real seismic data.