Evaluation of Bridge Abutment with Ultraseismic Waveform Tomography: Field Data Application
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Nondestructive Evaluation"
DOI: 10.1007/s10921-019-0631-4
Abstract: This paper presents an application of ultraseismic waveform tomography for condition evaluation (determination of elastic properties) and the unknown depth of a concrete bridge abutment. A newly developed waveform tomography technique for bounded medium (e.g.… read more here.
Keywords: bridge abutment; ultraseismic waveform; evaluation; waveform tomography ... See more keywords
Full waveform tomography to resolve desert alluvium
Sign Up to like & getrecommendations! Published in 2017 at "Soil Dynamics and Earthquake Engineering"
DOI: 10.1016/j.soildyn.2017.04.018
Abstract: Abstract This paper presents shear wave velocity distribution developed from full waveform tomography on a seismic dataset recorded in the northwest Las Vegas Valley, Nevada. The setting is a deep and variable alluvial sequence, encompassing… read more here.
Keywords: tomography resolve; full waveform; velocity; waveform ... See more keywords
A novel principle to localize the sensitivity of waveform tomography using wave interferences at the observation boundary
Sign Up to like & getrecommendations! Published in 2021 at "Scientific Reports"
DOI: 10.1038/s41598-021-01199-1
Abstract: When using waveform tomography to perform high-resolution imaging of a medium, it is vital to calculate the sensitivity in order to describe how well a model fits a given set of data and how the… read more here.
Keywords: sensitivity; waveform tomography; novel principle; principle ... See more keywords
Detection of Bridge-Deck Delamination Using Full Ultrasonic Waveform Tomography
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Infrastructure Systems"
DOI: 10.1061/(asce)is.1943-555x.0000323
Abstract: AbstractA two-dimensional (2D) time-domain waveform tomography technique is presented for detection of delamination in concrete bridge decks. Measured ultrasonic surface wave fields were inverted using a full waveform inversion (FWI) technique, based on a finite-difference… read more here.
Keywords: delamination; detection; using full; waveform ... See more keywords
Novel Phase-Sensitive Full-Waveform Tomography for Seismic Imaging
Sign Up to like & getrecommendations! Published in 2024 at "Seismological Research Letters"
DOI: 10.1785/0220230442
Abstract: Full-waveform tomography (FWT) is increasingly recognized as a pivotal technique for delineating high-resolution subsurface properties. Despite its significant potential, practical applications of FWT encounter persistent challenges, particularly in dealing with local minima and cycle-skipping problems.… read more here.
Keywords: waveform; phase sensitive; waveform tomography; seismic imaging ... See more keywords