Applied Geophysics
We apply a wide range of geophysical methods for engineering, geological and hydrogeological tasks
Beside standard site investigation methods, we apply a wide range of geophysical methods during engineering, geological and hydrogeological investigation. We extrapolate the obtained data for more accurate interpretation of the explored environment. The indisputable advantage of geophysical methods is their speed, mobility, non-destructivity, non-environment burden and their ability to&nbso;significantly optimize the investigations. The first work of this kind was carried out by SG Geotechnika in 1946. Since then we have been using geoelectric, seismic, georadar, geomagnetic, thermometric, TV probe, and special underground methods.
Contact us
RNDr. Jiří Nedvěd
T: +420 606 630 707
E: Jiri.Nedved@geotechnika.cz
Portfolio our geophysical methods
Hydrogeology
Geophysical measuring for location, development and protection of water resources
- Course of saturated and faulted zones
- Thickness of quaternary sediments
- Thickness and area of sandy aquifers in clay sediments
- Groundwater depth and flow direction
- Efficiency of waterproof measures in surface, underground objects and pipeline cistern
Engineering geology and geotechnical engineering
Geophysical measuring for line buildings, underground buildings, dams, and foundations soils investigation, or slope stability investigation
- Geological characteristic of the territory
- Physical and mechanical properties of foundation soils
- Inspection of compaction fillings
- Slope stability
- Estimation of natural arch of caverns and galleries, stability of building hole walls, documentation galleries and feeders
Environment
Geophysical measuring in scope of geochemical investigation of contamination rate and size, rock environment clearance, or borehole positioning
- Thickness and character of sand sediments
- Depth of weathering area and relief rocks
- Groundwater flow direction
- Soil contamination area
- Water aggressivity, corrodibility, presence of erratic flows
- Waterproof measure efficiency of surface and underground objects, borehole and pipeline cistern tightness
Construction, investigation of mineral raw material deposits, archeology
We identify structure and tectonic properties, determination the elastic properties of rocks, strength and rippability of rocks, direction of layers and slope determination in boreholes, diagnoses of building constructions and line buildings. We monitor and determine the degree of environmental corrosion and we also perform pyrotechnical investigations, radon index measurements for planning permission and building acceptance certificates.
Reference
Geophysical methods for branches such as geotechnical engineering, the environment, hydrogeology, construction, investigation of mineral raw deposits, and archaeology
Deep Geological Repository, Radioactive Waste Repository Authority – Long-term geological and geophysical study, evaluation, final assessments and measurements for engineering evaluation and a comparision of the sites being considered for the construction of the deep geological repository for radioactive waste
R35 Expressway, Opatovec – Staré Město – Preliminary geotechnical survey including geological documentation, well logging measurements, geophysical and hydrogeological survey, site and hydrogeological mapping, laboratory tests of soil and rocks
Water Tank Krsy, Pilsen District – Geophysical measurements, complementary site and hydrogeological survey to prevent leaks in the tank
Pipleline Repair, Dukovany Nuclear Plant – Geophysical survey for the detection of anomalies in the rock environment caused by the penetration of water from the damaged pipeline, geodetic surveying of the locality, geomonitoring and professional site supervision
Pumped-Storage Hydro Power Station, Dlouhé Stráně – Geophysics measurements and georadar survey to assess the homogeneity of dam layers to detect any possible cavities on one of the three largest pumped-storage hydro power stations in the world
