Borehole seismic surveys for the mechanical characterization of an calcarenite cliff in the area of Ispica (southern Sicily)

摘要

In this study, we investigate the mechanical properties of the substrate underlying the historical Franciscan Friars Minor convent of Ispica (southern Sicily). The convent, where new fractures recently occurred, is located on top of a calcarenite cliff formed along one of the planes of the regional Pozzallo-Ispica-Rosolini normal fault system. Taking advantage of three existing mechanical drillings 30 m deep, we have carried out downhole tests and a seismic tomography survey in uphole configurat