Publication Details |
| Category | Text Publication |
| Reference Category | Book chapters |
| URL | http://dx.doi.org/10.32075/17ECSMGE-2019-0168 |
| Title (Primary) | A CPT-based seismic tomographic system for geotechnical subsurface investigations and site assessment |
| Title (Secondary) | Proceedings of the XVII European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE-2019), Reykjavík, Iceland, 1 – 6 of September 2019, Geotechnical Engineering, foundation of the future |
| Author | Koedel, U.; Dietrich, P.
; Karl, L.; Mackens, S.; Fechner, T. |
| Publisher | Sigursteinsson, H.; Erlingsson, S.; Bessason, B. |
| Year | 2019 |
| Department | MET |
| Page From | 1 |
| Page To | 8 |
| Language | englisch |
| Keywords | Direct Push technique; Cone Penetration Test; cross-hole seismic tomography; damping ratio; soil stress history |
| Abstract | The spatial distribution of geotechnical parameters between CPT locations is often estimated by using various interpolation methods. However, the reliability of the predicted layering depends significantly on the heterogeneity of the local geology as well as the distance between the test locations and may be questionable in many cases. The uncertainty of the interpolation can be reduced by applying seismic tomography between the CPT positions. In the frame of the R&D project CPTTOMO a CPT-based tomography system has been developed by integrating multi-station three-component geophones as well as P- and S-wave sources in small-bore Direct-Push CPT rods. This paper introduces this novel combined system, explains new data interpretation approaches and highlights the potential for geotechnical subsurface investigation and site assessment. Two examples for the determination of geotechnical parameters such as damping ratio and over consolidation ratio as a indicator for soil stress history will be presented. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=22209 |
| Koedel, U., Dietrich, P., Karl, L., Mackens, S., Fechner, T. (2019): A CPT-based seismic tomographic system for geotechnical subsurface investigations and site assessment In: Sigursteinsson, H., Erlingsson, S., Bessason, B. (eds.) Proceedings of the XVII European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE-2019), Reykjavík, Iceland, 1 – 6 of September 2019, Geotechnical Engineering, foundation of the future Icelandic Geotechnical Society, Reykjavík, p. 1 - 8 |
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