The paper summarizes the results of a multidisciplinary study aimed to seismic microzonation of the Central Archeological Area of Rome including the Palatine hill, Roman Forum and Coliseum. A large amount of subsoil data, available mainly from adjacent subway lines and from the archaeological superintendence, were collected and employed to plan new investigations, carried out in 2010-2011. This survey included continuous-coring boreholes, in situ and laboratory geotechnical tests, MASW, cross and down-hole tests, ambient noise measurements, electrical resistivity tomographies, ground penetrating radar surveys. First, the paper shows the procedure employed to define an integrated subsoil model aimed to numerical modelling of site effects. Representative results of equivalent linear 2D site response analyses carried out on seven representative crosssections are therefore presented and discussed. Ground motion amplification factors defined in terms of Housner Intensity were computed in different ranges of period to cover the entire range of fundamental vibration periods pertaining to the artefacts and monuments. The contouring of amplification factor values from all the numerical simulations, based on morphological and geological constrains, finally allowed to create microzonation maps.
Seismic microzonation of Palatine Hill, Roman Forum and Coliseum (Rome, Italy)
PAGLIAROLI, Alessandro;
2012-01-01
Abstract
The paper summarizes the results of a multidisciplinary study aimed to seismic microzonation of the Central Archeological Area of Rome including the Palatine hill, Roman Forum and Coliseum. A large amount of subsoil data, available mainly from adjacent subway lines and from the archaeological superintendence, were collected and employed to plan new investigations, carried out in 2010-2011. This survey included continuous-coring boreholes, in situ and laboratory geotechnical tests, MASW, cross and down-hole tests, ambient noise measurements, electrical resistivity tomographies, ground penetrating radar surveys. First, the paper shows the procedure employed to define an integrated subsoil model aimed to numerical modelling of site effects. Representative results of equivalent linear 2D site response analyses carried out on seven representative crosssections are therefore presented and discussed. Ground motion amplification factors defined in terms of Housner Intensity were computed in different ranges of period to cover the entire range of fundamental vibration periods pertaining to the artefacts and monuments. The contouring of amplification factor values from all the numerical simulations, based on morphological and geological constrains, finally allowed to create microzonation maps.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
