Abstract Based on the principal component analysis (PCA), we construct a theoretical model for three-component seismic polarization analysis and obtain more accurate horizontal azimuth and vertical inclination of the geophone. And then the seismic response is rotated to correct the direction of the geophone.We apply this method to the elastic wave velocity test between cross-well, through the polarization analysis of the measured data, the first break of P-wave and S-wave are respectively strengthened in HP-component and R-component. This is not only conducive to the pick-up of the first break, but also can obtain more accurate wave velocity data, providing more accurate dynamic parameters for geotechnical engineering design.
JIN Cong,LIN Song,DENG Xiaohu et al. Cross-Well Seismic Polarization Analysis Method Based on PCA and Its Application[J]. jgg, 2021, 41(12): 1300-1305.
JIN Cong,LIN Song,DENG Xiaohu et al. Cross-Well Seismic Polarization Analysis Method Based on PCA and Its Application[J]. jgg, 2021, 41(12): 1300-1305.