Geological and geotechnical models definition for 3rd level seismic microzonation studies in Central Italy
| Autor: | Marco Tallini, Dario Albarello, Gino Romagnoli, C. Muraro, V. Chiessi, Luca Maria Puzzilli, Luca Macerola, Giuseppe Tortorici, M. Francescone, P. Caprari, M. Della Seta, M. Roma, Enrico Paolucci, Diego Di Curzio, Pierluigi Pieruccini, M. Amanti, Giuseppe Cavuoto, A. Pizzi, F. Mirabella, Marco Nocentini, Carlo Esposito, Stefano Catalano, Pier Lorenzo Fantozzi |
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| Rok vydání: | 2020 |
| Předmět: |
Engineering-geological units
Morphostructural domains Seismic Microzonation studies Seismic sequence Subsoil model Ground motion 021110 strategic defence & security studies Hydrogeology Seismic microzonation 0211 other engineering and technologies Terrain 02 engineering and technology Building and Construction Geotechnical Engineering and Engineering Geology Geophysics Wide area Homogeneous Geotechnical engineering Structural geology Geology Civil and Structural Engineering |
| Zdroj: | Bulletin of earthquake engineering (2020). doi:10.1007/s10518-020-00843-x info:cnr-pdr/source/autori:Amanti, M.; Muraro, C.; Roma, M.; Chiessi, V.; Puzzilli, L. M.; Catalano, S.; Romagnoli, G.; Tortorici, G.; Cavuoto, G.; Albarello, D.; Fantozzi, P. L.; Paolucci, E.; Pieruccini, P.; Caprari, P.; Mirabella, F.; Della Seta, M.; Esposito, C.; Di Curzio, D.; Francescone, M.; Pizzi, A.; Macerola, L.; Nocentini, M.; Tallini, M./titolo:Geological and geotechnical models definition for 3rd level seismic microzonation studies in Central Italy/doi:10.1007%2Fs10518-020-00843-x/rivista:Bulletin of earthquake engineering (Print)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume |
| ISSN: | 1573-1456 1570-761X |
| Popis: | The 2016-2017 seismic events that struck central Italy led the Government to carry out a project to produce the third level Seismic Microzonation studies in 138 municipalities. These activities have involved many experts in different disciplines such as geology, geomorphology, geophysics, seismology and geotechnical engineering. This project represented the first opportunity to perform nationally coordinated third level Seismic Microzonation studies over a wide area in a quite short time (6 months). It provided the chance to improve methodological procedures, to test the reliability of methods and models for site response analyses and to produce a huge amount of validated data. This paper focuses on the contribution of geological disciplines and concerns: (a) the definition of the main "morphostructural domains" of the Central-Northern Apennines; (b) the creation of an archive of all the lithostratigraphic units occurring in the study area with their conversion into engineering-geological units and their distribution in the different morphostructural domains; (c) the construction of the reference geological and geotechnical models, which are essential to classify the territory into seismically homogeneous microzones and to perform the successive 1D and 2D numerical analyses of the local site response. The geophysical dataset acquired for the study allowed a first statistical characterization of the Vs values typical of the engineering-geological units identified in this study. Some examples of the recurrent geological and geotechnical models are shown to explain the complexity and variety of the geological and geomorphological features of the investigated area and to highlight the different seismostratigraphic behavior of rocks and cover terrains. The analysis of third level Seismic Microzonation data made it possible to identify recurrent subsoil models and to note the main stratigraphic and morphological control-factors of the ground motion modification in the different morphostructural domains. |
| Databáze: | OpenAIRE |
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