Efficient mechanical evaluation of railway earthworks using a towed seismic array and Bayesian inference of MASW data
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866911070012047360 |
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| author | Burzawa, Audrey Bodet, Ludovic Dangeard, Marine Barrett, Brian Byrne, Daniel Whitehead, Robert Chaptal, Corentin Teixeira, José Cunha Cardenas, Julio Gonzalez, Ramon Sanchez Eriksen, Asger Dhemaied, Amine |
| author_facet | Burzawa, Audrey Bodet, Ludovic Dangeard, Marine Barrett, Brian Byrne, Daniel Whitehead, Robert Chaptal, Corentin Teixeira, José Cunha Cardenas, Julio Gonzalez, Ramon Sanchez Eriksen, Asger Dhemaied, Amine |
| contents | Assessing Railway Earthworks (RE) requires non-destructive and time-efficient diagnostic tools. This study evaluates the relevance of shear-wave velocity ($V_s$) profiling using Multichannel Analysis of Surface Waves (MASW) for detecting Low Velocity Layers (LVLs) in disturbed RE zones. To enhance time-efficiency, a towed seismic setup (Landstreamer) was compared with a conventional one. Once qualified, the Landstreamer was deployed on the ballast for roll-along acquisition, showing greatly improved efficiency and good imaging capability. A probabilistic framework adopted in this study additionally enhances quantification of uncertainties and helps in interpretation of $V_s$ models, facilitating reliable decision-making in infrastructure management. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_16491 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Efficient mechanical evaluation of railway earthworks using a towed seismic array and Bayesian inference of MASW data Burzawa, Audrey Bodet, Ludovic Dangeard, Marine Barrett, Brian Byrne, Daniel Whitehead, Robert Chaptal, Corentin Teixeira, José Cunha Cardenas, Julio Gonzalez, Ramon Sanchez Eriksen, Asger Dhemaied, Amine Geophysics Assessing Railway Earthworks (RE) requires non-destructive and time-efficient diagnostic tools. This study evaluates the relevance of shear-wave velocity ($V_s$) profiling using Multichannel Analysis of Surface Waves (MASW) for detecting Low Velocity Layers (LVLs) in disturbed RE zones. To enhance time-efficiency, a towed seismic setup (Landstreamer) was compared with a conventional one. Once qualified, the Landstreamer was deployed on the ballast for roll-along acquisition, showing greatly improved efficiency and good imaging capability. A probabilistic framework adopted in this study additionally enhances quantification of uncertainties and helps in interpretation of $V_s$ models, facilitating reliable decision-making in infrastructure management. |
| title | Efficient mechanical evaluation of railway earthworks using a towed seismic array and Bayesian inference of MASW data |
| topic | Geophysics |
| url | https://arxiv.org/abs/2507.16491 |