Geological, hydrogeological, geotechnical and geophysical studies for:

complex hydrotechnical settlements (dams, dikes and hydroelectric power plants), thermoelectric nuclear power plants and of cogeneration, micro-hydropower plants, wind parks and photovoltaic, radioactive waste deposits, high voltage lines, transformer stations, gravels, civil and industrial buildings, wastewater treatment plants, roads and bridges (ways of communication).

MAPS OF NATURAL HAZARD at seism

GEOPHYSICAL INVESTIGATIONS

   Seismic measurements:

• At surface, by seismic refraction method: Standard – 1D; Seismic Refraction Tomography (SRT) – 2D; Multichannel Analysis of Surface Waves (MASW) – 1D
   

• In drillings (micro-seismo logging ) by the following methods: downhole, uphole si crosshole

• Determination of dynamic parameters of foundation soil (VP, VS, Уdin, Edin, Gdin, Tg)  

Equipment used: digital seismic station with 24 channels /24-bits (A 6000 S/24- TDE Company – Italy) - vertical surface geophones - three-ways drilling geophones (3D)- TDE Company – Italy Software used for data processing and interpretation in standard seismic refraction (1D), seismic tomography (2D) and MASW (1D) – is SeisImager 1D/2D (GEOMETRICS- USA)

Geoelectrical measurements:

• Vertical electrical surveys method (SEV) with devices type Schlumberger or Wenner
   

• Electrical resistivity tomography method (ERT)

• Natural polarization method (PN 

Equipment used: electrometric multielectrod digital station A 3000-E (TDE Company – Italy).

Data processing geoelectrical software: IPI2WIN – 2D (Russia)

RES2DINV-2D (GEOTOMO - Malaysia).

Seismological investigations:

• Seismic hazard evaluation (computing accelerograms and design response spectra) in the important industrial and civil construction sites (dams, CNE).
   

• Vibration measurements (explosions, mechanical shocks, a.s.o.)

• Seismic surveillance of the dams 

• Seismic zoning and microzoning of the construction sites

Non-destructive investigations for determination of the concrete quality and strength:

• Ultrasound measurements for determining the quality and strength of concrete on elements from construction structure (foundations, columns, beams, ceilings, a.s.o.)

Equipment used: Digital Betonoscop Tico B 1480 (Proceq Company - Switzerland)