Showing papers by "Cesare Comina published in 2020"
University of Chieti-Pescara1, National Institute of Geophysics and Volcanology2, Brigham Young University3, University of Bologna4, University of Turin5, University of Modena and Reggio Emilia6, University of L'Aquila7, Optech8, Polytechnic University of Turin9, San Antonio River Authority10, University of Ferrara11, University of Padua12
TL;DR: In this paper, a multidisciplinary team of forty researchers carried out devoted experimental activities aimed at better understanding the liquefaction process at the field scale and the effectiveness of the treatment using inter-related methods.
26 citations
TL;DR: In this paper, the application of ground penetrating radar (GPR) for the prediction of karst structures in underground gypsum quarries is discussed, with particular attention to the discrimination of fillings (air, water or clay).
20 citations
TL;DR: The integration of 2D/3D mapping data concerning visible elements and hypothetical anomalies, together with the recovering in the same global reference system of underground documentation pertaining to the Theban Mapping Project, prefigure the enhancement of multi-temporal site representation.
Abstract: Recent results within the framework of the collaborative project The Complete Geophysical Survey of the Valley of the Kings (VOK) (Luxor, Egypt) are reported in this article. In October 2018, a team of geomatics and geophysics researchers coordinated by the Polytechnic University of Turin worked side by side in the VOK. Topographic measurements in support of geophysical surveys and the achievement of a very large-scale 3D map of the Eastern VOK were the two main objectives of the geomatics campaign. Innovative 3D metric technologies and methods, based on terrestrial laser scanning (both static and mobile) and close-range photogrammetry were employed by the Geomatics team. The geophysical campaign focused on the acquisition of Electrical Resistivity Tomography (ERT), Ground Penetrating Radar (GPR) and high spatial density Geomagnetic (GM) data. ERT new data around KV62, both inverted in 2D sections and added to the previous ones to perform a new global 3D inversion, confirm the previous results showing both conductive and resistive anomalies that have to be explained. GPR timeslices showed some interesting features in the area in front of the KV2 entrance where GM gradient map also presents localized anomalies. In the area SSW of the KV2 the GM gradient maps evidenced also a large semicircular anomaly which, up to now, has no explanation. The potentialities of using magnetic techniques as a complement to other non-invasive techniques in the search for structures of archeological significance have been explored. The application of modern and innovative methods of 3D metric survey enabled to achieve a complete 3D mapping of what is currently visible in the valley. The integration of 2D/3D mapping data concerning visible elements and hypothetical anomalies, together with the recovering in the same global reference system of underground documentation pertaining to the Theban Mapping Project, prefigure the enhancement of multi-temporal site representation. This strategy enables the fruition development of the already discovered archaeological heritage, using modern criteria of valorization and conservation.
11 citations
TL;DR: In this article, the application of a new electric streamer, specifically designed for these aims, is presented, where the technical solutions adopted for its construction are described and its application to the characterization of three different river embankments is presented.
8 citations
TL;DR: In this paper, the authors presented the application of a procedure (W/D procedure) for the seismic characterization of river embankments, specifically designed for surface waves streamer data.
6 citations
TL;DR: In this article, a new seismic dilatometer (SPDMT) was developed to combine the measurements of the flat DMT geotechnical parameters with both P- and S- waves velocities.
Abstract: A new seismic dilatometer (SPDMT) has been developed to combine the measurements of the flat dilatometer (DMT) geotechnical parameters with both P- and S- waves velocities. This new SPDMT is composed of the traditional mechanical DMT and four sensors for measuring the body waves velocities placed above the DMT blade. This SPDMT device is presented here, and the test procedure and the interpretation of P- and S-wave measurements are discussed. Results of the application of this new instrument are reported in a test site located in Bondeno (Emilia Romagna, Italy). Here, challenging water table conditions offer the opportunity to evaluate the advantage of a combined measure of the two propagation velocities, together with DMT geotechnical parameters, with the same apparatus for the porosity evaluation and a more calibrated liquefaction assessment.
5 citations
TL;DR: In this paper, the authors used ground penetrating radar and electric sensitivity tomography (ESTomography) over and inside an unexplored burial site in Japan, the Tobiotsuka Kofun, which dates approximately late 6th-early 7th century CE and located in the Okayama Prefecture.
4 citations
TL;DR: The Special Issue “Remote Sensing in Applied Geophysics” is focused on recent and upcoming advances in the combined application of remote sensing and applied geophysics techniques, sharing the advantages of being non-invasive research methods suitable for surface and near-surface high-resolution investigations of even wide and remote areas.
Abstract: The Special Issue “Remote Sensing in Applied Geophysics” is focused on recent and upcoming advances in the combined application of remote sensing and applied geophysics techniques, sharing the advantages of being non-invasive research methods, suitable for surface and near-surface high-resolution investigations of even wide and remote areas [...]
3 citations