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- W148257904 abstract "The paper presents an application of 2-D time-domain waveform tomography to characterize existing foundations using surface-based seismic wavefields. The full waveform inversion (FWI) technique is based on a finite-difference solution of 2-D elastic wave equations and Gauss-Newton inversion method. Both the compression wave (P-wave) and shear wave (S-wave) velocities are inverted independently and simultaneously to increase credibility of characterized profiles. The FWI technique was applied on both synthetic and real experimental data sets. Inverted results of synthetic data showed that individual embedded foundation elements (piles) and soil between piles were distinguished; supporting soils were characterized. For real experimental data, seismic surface wavefields were measured next to two drilled shafts of 1.2 m diameter and 15 m length, and then inverted by the FWI. The waveform analysis successfully profiled embedded shaft elements and subsurface soil stratigraphy, the shaft length of 15 m is also generally predicted." @default.
- W148257904 created "2016-06-24" @default.
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- W148257904 date "2015-01-01" @default.
- W148257904 modified "2023-09-28" @default.
- W148257904 title "Characterization of Unknown Foundations Using a 2-D Full Waveform Tomography" @default.
- W148257904 hasPublicationYear "2015" @default.
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