The Research Unit of SDGEE has a long experience in field testing and is fully equipped to perform high quality seismic, geotechnical and geophysical surveys and tests, such as:
- Refraction, Reflection
- Spectral analysis of surface Waves (SASW)
- Surface Wave Inversion (SWI)
- Multichannel Analysis of Surface Waves (MASW)
- Cross-hole (CH) measurements
- Down-hole (DH) measurements
- Array Microtremor measurements (Spatial Autocorellation Coefficient -SPAC, linear and arbitrary configurations)
- Horizontal to Vertical Spectral Ratio-HVSR
- Classical Spectral Ratio-SSR
- Generalized Inversion method-GIS
- Strong ground motion monitoring
- Structure health monitoring and system identification
Equipment for field surveys:
- Surface surveys (Refraction, reflection, SASW, MASW, microtremor measurements, site response estimates, structural monitoring of critical buildings, bridges, monuments, etc.)
- Borehole surveys (Down-hole and Cross-hole)
- Strong ground motion monitoring (Recording of seismic activity, earthquake early warning, etc.)
Field surveys/examples:
- 2D & 3D geological-geophysical models. The case of EUROSEISTEST
- Down-hole and Cross-hole surveys
- Multichannel Analysis of Surface Waves
- Site response surveys (HVSR, SSR, GIS)
- Site response surveys (HVSR, SSR, GIS)
Selected projects:
EUROSEISTEST • EUROSEISMOD • EUROSEISRISK • MERP • SRM-DGC • XSOILS
Selected publications:
• Raptakis D, Chávez-García FJ, Makra K, Pitilakis K, 2000. Site effects at Euroseistest Part I. Determination of the valley structure and confrontation of observations with 1D analysis, Soil Dyn. & Earthq. Eng., 19:1-22.
• Manakou M, Raptakis D, Chavez-Garcia FJ, Apostolidis P, Pitilakis K, 2010. 3D soil structure of the Mygdonian basin for site response analysis. Soil Dyn. & Earthq. Eng., 30: 1198-1211.