A framework for inversion of wavefield spectra in seismic non-destructive testing of pavements
(2004) 2nd International Conference on Site Characterization (ISC-2) p.563-570- Abstract
- A method for the inversion of wavefield spectra in non-destructive testing of pavements is outlined. Data acquisition and processing is based on the Multichannel Analysis of Surface Waves (MASW) method. The inversion of a vertical-shear wave velocity profile is conducted on the full wave field spectrum using the Fast Simulated Annealing (FSA) algorithm. This procedure avoids dealing with discrete dispersion curves and mode identification for the inversion of surface wave data. The viscoelastic properties of the asphalt layer are included in the forward model, resulting in an inverted mastercurve, showing the asphalt stiffness as a function of frequency. The outlined approach is demonstrated on both synthetic and field data. The main... (More)
- A method for the inversion of wavefield spectra in non-destructive testing of pavements is outlined. Data acquisition and processing is based on the Multichannel Analysis of Surface Waves (MASW) method. The inversion of a vertical-shear wave velocity profile is conducted on the full wave field spectrum using the Fast Simulated Annealing (FSA) algorithm. This procedure avoids dealing with discrete dispersion curves and mode identification for the inversion of surface wave data. The viscoelastic properties of the asphalt layer are included in the forward model, resulting in an inverted mastercurve, showing the asphalt stiffness as a function of frequency. The outlined approach is demonstrated on both synthetic and field data. The main benefit is that the raw field data can be automatically processed and inverted without any subjective user input, while properly accounting for the interference of different modes and types of waves. The main disadvantage at this point of development is an extensive (several hours) computational time for the inversion process. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1410652
- author
- Rydén, Nils LU ; Ulriksen, Peter LU and Park, C B
- organization
- publishing date
- 2004
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- MASW, simulated annealing, inversion, pavements, non-destructive testing, surface waves, guided waves
- host publication
- Geotechnical and Geophysical Site Characterization
- pages
- 563 - 570
- publisher
- Millpress
- conference name
- 2nd International Conference on Site Characterization (ISC-2)
- conference location
- Oporto, Portugal
- conference dates
- 2004-09-19 - 2004-09-22
- external identifiers
-
- wos:000239478800052
- ISBN
- 978-90-5966-009-0
- language
- English
- LU publication?
- yes
- id
- ca902bd8-c9e0-4008-a90c-d88881c117dd (old id 1410652)
- date added to LUP
- 2016-04-04 10:45:22
- date last changed
- 2018-11-21 21:00:36
@inproceedings{ca902bd8-c9e0-4008-a90c-d88881c117dd,
abstract = {{A method for the inversion of wavefield spectra in non-destructive testing of pavements is outlined. Data acquisition and processing is based on the Multichannel Analysis of Surface Waves (MASW) method. The inversion of a vertical-shear wave velocity profile is conducted on the full wave field spectrum using the Fast Simulated Annealing (FSA) algorithm. This procedure avoids dealing with discrete dispersion curves and mode identification for the inversion of surface wave data. The viscoelastic properties of the asphalt layer are included in the forward model, resulting in an inverted mastercurve, showing the asphalt stiffness as a function of frequency. The outlined approach is demonstrated on both synthetic and field data. The main benefit is that the raw field data can be automatically processed and inverted without any subjective user input, while properly accounting for the interference of different modes and types of waves. The main disadvantage at this point of development is an extensive (several hours) computational time for the inversion process.}},
author = {{Rydén, Nils and Ulriksen, Peter and Park, C B}},
booktitle = {{Geotechnical and Geophysical Site Characterization}},
isbn = {{978-90-5966-009-0}},
keywords = {{MASW; simulated annealing; inversion; pavements; non-destructive testing; surface waves; guided waves}},
language = {{eng}},
pages = {{563--570}},
publisher = {{Millpress}},
title = {{A framework for inversion of wavefield spectra in seismic non-destructive testing of pavements}},
year = {{2004}},
}