Joint inversion for apparent phase velocities of rayleigh and love waves
- Authors
- Joh, S.-H.; Stokoe, K.H.; Lee, I.; Kang, T.-H.; Rosenbld, B.; Bay, J.A.
- Issue Date
- Mar-2006
- Citation
- GeoCongress 2006: Geotechnical Engineering in the Information Technology Age, v.2006, pp 97
- Journal Title
- GeoCongress 2006: Geotechnical Engineering in the Information Technology Age
- Volume
- 2006
- Start Page
- 97
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/56287
- DOI
- 10.1061/40803(187)97
- ISSN
- 0000-0000
- Abstract
- Many surface-wave methods have focused on collecting only normal modes of Rayleigh-wave propagation. This paper presents an inversion algorithm to invert the apparent phase velocities, which include near-field information as well as normal-mode information. In the algorithm, Love-wave dispersion data are jointly included with Rayleigh-wave dispersion data to reduce non-uniqueness inherent in surface-wave methods and increase the accuracy of a resulting shear-wave velocity profile. Synthetic dispersion data were generated for typical geologic sites, and used for the verification of the inversion algorithm. A strategy to overcome the adverse effects of multiple reflections and mode conversion in Love waves is also discussed. Copyright ASCE 2006.
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