GEOPHYSICAL METHODS OF EXPLORATION

GEO/10 - 9 CFU - 2° Semester

Teaching Staff

ANDREA CANNATA


Learning Objectives

Skill in choosing and evaluating the use of different geophysical prospections. Skill in acquiring and processing data of seismic and electric prospections. Ability in using techniques aiming to evaluate seismic hazard. Skill in evaluating the local seismic response..



Detailed Course Content

- Seismic prospecting: Theoretical and practical sections about methodologies aiming to evaluate elastic properties of terrains through seismic waves. basic knowledge of refraction and reflection prospecting. Seismic tomography. Cross-hole test, Down-hole test, Seismic cone, Suspension logging test, SASW (spectral analysis surface waves), MASW (multichannel analysis surface waves), Seismic tomography, Refraction microtremor analysis and 2D seismic arrays. FTAN, H/V. Practical section about recording and processing MASW and Refraction Microtremor data.

- Electric prospections: main methodologies using electric properties of terrains for investigating their structure. Passive and active methodologies. Wenner, Schlumberger, Dipole-Dipole geometries.

Seismic risk and Hazard; Hazard evaluation: deterministic and probabilistic approaches; Stochastic processes used in the hazard estimate; Seismic microzoning and hazard scenarios; Non-linear behavior of soft soils; Site effects linked to heterogeneities, geometric and topographic irregularities, faults and cavities; Local seismic response evaluation: Modeling, Analytic and Experimental approaches (Nakamura technique, Spectral ratios; Evaluation of directional effects; Experimental evaluation of dynamic features of buildings. Practical section about recording and processing seismic data; Practical section about using EERA, DEEPSOIL and Geopsysoftwares.




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