Geophysical survey is a cost-effective, non-intrusive and relatively quick way of detecting and assessing sub-surface features. CENGRS has developed in-house testing capabilities in geophysics to effectively complement conventional geotechnics for determination of dynamic soil properties, detecting utilities and voids, site characterization, landslide evaluation, etc. 

1. Seismic Refraction Tests using specialized equipment imported from PASI Geophysics, Italy
2. Down-Hole Seismic test (DHST) using customised equipment from Olson Engineering, U.S.A.
3. Cross-Hole Seismic test (CHST) using customised equipment from Olson Engineering, U.S.A.
4. Spectral Analysis of Surface Waves (SASW)
5. Multi-Channel Analysis of Surface Waves (MASW)
6. Parallel Seismic Tests using customized equipment imported from Olson Engineering, U.S.A.
7. Electrical resistivity imaging (ERI) and tomography
8. Ground-penetrating radar (GPR)