Issue |
E3S Web of Conf.
Volume 544, 2024
8th International Symposium on Deformation Characteristics of Geomaterials (IS-Porto 2023)
|
|
---|---|---|
Article Number | 02002 | |
Number of page(s) | 8 | |
Section | Experimental Investigations From Very Small Strains to Beyond Failure - Advances in Field Testing and Monitoring Techniques | |
DOI | https://doi.org/10.1051/e3sconf/202454402002 | |
Published online | 02 July 2024 |
Medusa SDMT testing at the Onsøy Geo-Test Site, Norway
1 University of L’Aquila, Dept. Civil, Construction-Architectural and Environmental Engineering, L’Aquila, Italy
2 Studio Prof. Marchetti, Rome, Italy
3 University of Chieti-Pescara, Dept. Engineering and Geology, Pescara, Italy
4 Istituto Nazionale di Geofisica e Vulcanologia, L’Aquila, Italy
5 Norwegian Geotechnical Institute, Dept. Geotechnics and Natural Hazards, Trondheim, Norway
* Corresponding author: paola.monaco@univaq.it
The Medusa SDMT is the last-generation, fully automated version of the seismic dilatometer (SDMT). An extensive in situ testing campaign with the Medusa SDMT was carried out in June 2022 in different soil types at four well-known benchmark test sites in Norway, part of the Geo-Test Sites (NGTS) research infrastructure managed by the Norwegian Geotechnical Institute. The experimental campaign was conducted as part of the Transnational Access project – JELLYFISh funded by H2020-GEOLAB. This paper presents a preliminary assessment of significant results obtained by Medusa SDMT at the Onsoy test site, a soft marine clay. The data is compared to available in situ and laboratory data previously published at the Onsøy test site. The results show that the Medusa SDMT data are consistent with traditional (pneumatic) SDMT results. Furthermore, the parameters obtained from the interpretation of Medusa SDMT data, in particular the overconsolidation ratio OCR, the coefficient of earth pressure at rest K0, and the undrained shear strength su agree generally well with the corresponding parameters obtained in past investigations from other in situ and laboratory tests.
Key words: SDMT / Medusa DMT / in situ testing / Geo-Test Sites
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.