Brantax - engineering survey

underwater, underground
and surface investigation

Category Archives: Events

Electrical tomography method

Geophysical research through electrical tomography method for highlighting a channel for rainwater collection situated under a future highway. For this research three measuring devices were used – Schlumberger, Wenner and dipole-dipole. The results are very convincing and confirm the effectiveness … Continue reading

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Geoelectrical tomography

Geoelectrical tomography for identifying local geological and hydrogeological conditions that favored the occurrence of landslides that endanger stability of future works developed in the research area. Geoelectrical sections helped to identify the characteristics of sliding plan and establish measures to … Continue reading

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Geoelectrical investigations

Geoelectrical investigations to identify and characterize local geological conditions found in the area of undercrossing the Danube through horizontal directional drillings. The geoelectrical measurements were performed on water using cables and devices specially designed for this kind of work. Taking … Continue reading

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Bathymetric measurements

Bathymetric measurements for drawing a bathymetric map of a Danube sector between Comasca (Romania) and Marten (Bulgaria). As required, measurements were made on alignments predefined by using Ohmex equipment and GPS GNSS. The compensation of topographic data was done with … Continue reading

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Vertical magnetic gradient

Measurements of the variation of vertical magnetic gradient in order to identify metal objects hidden (buried or submerged) on the alignment of the horizontal directional drilling that undercrosses the Danube between Romania and Bulgaria. For the absolute positioning of measurements, … Continue reading

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Georadar investigations (GPR)

Georadar investigations (GPR) in order to identify elements of the sewerage system within the military airport at Deveselu, Romania.  The works consisted in the detection and marking of the items of research directly on the location. In this respect it … Continue reading

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Geoelectrical investigation

Geoelectrical investigations through Vertical Electrical Sounding (VES) method and electrical tomography (multielectrod) to identify the local geological conditions that led to landslides near the village Aciliu, Sibiu County. At the same time with the geophysical studies, geotechnical investigations with dynamic … Continue reading

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Natural magnetic field

Georadar investigation (GPR) and natural magnetic field were carried out to identify buried utility networks. The land under investigation is a former industrial platform with good chance that the utilities are active or abandoned. The land area consisted of boulders … Continue reading

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Georadar investigations (GPR)

Georadar investigations (GPR) at Baneasa airport to identify current conditions of the runway and of the aircraft parking platform. In this project a georadar antenna with 900 MHz frequency was used, which highlighted the layers, discontinuities, fissures and utilities in … Continue reading

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Geophysical investigations

Geophysical investigations through geoelectrical methods in direct current (DC) – Vertical Electrical Soundings (VES) and multielectrod (electrical tomography) to identify local geological and hydrogeological conditions in river crossing of river Gauja, Latvia. The interpretation of the geoelectrical sections corroborated with … Continue reading

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