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Non-invasive investigations
for safe design

Using modern methods such as ERI (Electrical Resistivity Imaging) and MASW (Multichannel Analysis of Surface Waves), Eco Geodrum provides detailed geophysical studies of the subsurface structure – without digging or drilling.
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Benefit from the expertise of the Eco Geodrum team

Safety and efficiency in every project

The geophysical methods used allow us to gain an in-depth understanding of the earth’s structure without destructive interventions. This information contributes directly to:

  • The right choice of foundation solutions;
  • Geotechnical risk prevention;
  • Optimize design and execution costs;

The result? A safe, efficient and sustainable project based on real data from the field.

What methods we use for geophysical surveys

ERI - Electrical Resistivity Imaging

ERI is an electrical tomography method that measures the electrical resistivity of the soil vertically or in 3D space. Using electrodes placed on the surface, electric current is transmitted and the response of the subsurface is analyzed.

How does it work?

  • A line of electrodes (48-64 points) is mounted.
  • Inject electric current and record the potential differences.
  • Repeat measurements in multiple combinations for complete coverage.
  • A tomographic image of the basement is generated by specialized software.

Applications:

  • Identification of unstable areas (landslides).
  • Detect cavities and foreign materials.
  • Construction stratification assessment.
  • Localization of the water table.
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MASW - Multichannel Analysis of Surface Waves

MASW is a surface seismic technique that analyzes the propagation of waves generated at the surface to determine the shear wave velocity (Vs) – an essential parameter for the mechanical characterization of the ground.

How does it work?

  • A series of geophones (seismic sensors) are lined up.
  • Seismic waves are generated (by mechanical impact).
  • Geophones record the subsurface response.
  • The profile of the velocity Vs at depth is determined, including the Vs30 value.

Applications:

  • Evaluation of the bearing capacity of the soil.
  • Seismic framing of the site.
  • Seismic microzonation.
  • Identify soft or compact layers.
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Advantages of ERI and MASW methods

Non-invasive

No drilling or excavation.

Efficient

Short run time, precise results.

Complementary

It gives a complete picture: electrical and mechanical.

Adaptable

Applicable in urban, rural, industrial or natural areas.

Working process

01

Objective analysis and investigation planning

02

Preparing work in the field

03

Field measurements

04

Data processing and interpretation

05

Final report

06

Technical assistance (on request)

Do you need precise data on land structure?

Request a customized geophysical survey and make informed decisions without unnecessary risks.
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Relevant projects

"DESIGN AND EXECUTION Sibiu - Pitesti Highway, Section 2: Boița - Cornetu"

Feasibility Study for the modernization of the railway section Predeal - Brasov"

"BUCHURESTI - BRASOV MOTORWAY, section PLOIESTI - BRASOV"

Express Road Constanta - Tulcea - Braila between Tulcea, Mineri, Cataloi, Agighiol and Malcoci

"Design and Execution of the Bucharest Ring Road, km 0+000-km-100+900, North Ring Road Sector km 0+000 - km 52+770, Lot 1: km 2+500 - km 20+000"

',Rehabilitation of embankment affected by landslide (natural calamity) in Cumpăna area - left bank of the Danube - Black Sea Canal, between km 56+989 (km 7+421 navigation) and km 57+217 (km 7+193 navigation) - urgent works''

Targu Neamt - Iasi - Ungheni highway

"Techirghiol Alternative".

"Design and technical assistance services related to the objective of Magistrala 5 (Drumul Taberei - Pantelimon), Section EROILOR (PS OPERĂ) - PIAȚA IANCULUI".

"Geotechnical study to establish the state of the Vacaresti Delta and to present some conclusions/safety measures/urgent intervention measures that do not affect the natural environment of the Vacaresti Delta".

BUCHURESTI - BRASOV MOTORWAY, PLOIESTI - BRASOV section

"Fe Feasibility Study and Technical Design for the modernization of the Apahida - Suceava railway line, Subsection 3: Pojorâta- Suceava

"Feasibility Study and Technical Design for the modernization of the Apahida - Suceava railway line, Subsection 1: Apahida - Ilva Mică"

" Geotechnical investigations and environmental documentations for borrow pits on the "Ploiești-Buzău" project.

"Services regarding the investment plan/master plan and feasibility study, necessary for the investment objective Galati-Braila International Airport, as well as for the preparation of the studies associated with the SF design phase related to the future investment objective"

"Modernization of DN 71 Bâldana - Târgoviște - Sinaia, km 0+000 - KM 44+130 Widening to 4 lanes and km 51+041 - km 109+905 road to 2 lanes, Sector 1: Bâldana - Târgoviște, km 0+000 - km 44+130 - Widening to 4 lanes"

"Elaboration of geotechnical study for the Pitesti-Sibiu highway project Section 3 Cornetu-Tigveni".

"Fișici bridge crossing the Fișici gorge, located on DC 85, Bozioru Commune, Buzau County".

"Herastrau lake shore defenses capital repairs, including Herastrau island shore defenses".

"LUKOIL FUEL DISTRIBUTION STATION in mun. TG. Mures, str. 22 Decembrie 1989, jud.Mures"

',Rehabilitation of embankment affected by landslide (natural calamity) in Cumpăna area - left bank of the Danube - Black Sea Canal, between km 56+989 (km 7+421 navigation) and km 57+217 (km 7+193 navigation) - urgent works''