SERVICES

GEOPHYSICAL

SURVEY

Geoelectrical Survey

  • Surface and borehole Electrical Resistivity Tomography - 2D/3D

  • Active geoelectrical measurements (SEV-SEO)

  •  Passive geoelectrical measurements (PS)

  • Geoelectrical tomographic chargeability profiles (IP)

Applications:

  • 2D/3D subsurface analysis.

  • Geological-technical characterization of the subsurface, quarries, and infrastructure projects.

  • Landslide body monitoring.

  • Assessment of gravel deposits and quarry materials.

  • Contamination studies of aquifers by saltwater.

  • Jet grouting and ground consolidation monitoring (Pre/Post).

  • Mineral and archaeological exploration.

  • Subsurface water research, well location and design, spring capture.

  • Mapping of underground cavities.

  • Dimension, depth, and integrity monitoring of underground structures (RC/Concrete).

  • Landfill monitoring: water pollution, solid waste volume, impermeabilization.

Seismic Survey

  • Seismic Refraction Tomography - 2D/3D

  • Seismic Reflection

  • Down Hole and Cross-Hole

  • Multichannel Analysis of Surface Waves

    M.A.S.W.

  • H.V.S.R. e Re.Mi.

Applications:

  • Ground stiffness and seismic profiling.

  • Seismic, geotechnical, and stratigraphic characterization of the ground.

  • Mineral and oil exploration.

  • Site and building resonance frequency estimation.

  • Foundation soil classification based on new seismic regulations (Veq, Vs30 – DM 2018).

  • Thickness evaluation of landslide bodies.

  • Studies for territorial planning (seismic microzonation).

Ground Penetrating Radar (GPR) Survey

  • with single broadband antenna

    (80 MHz to 1.5 GHz)

  • with single dual frequency antenna

    (200 - 600 MHz)

  •  with single frequency multi-antenna

    (600 MHz) for 2D/3D maps

  • with single high resolution mono-frequency antenna (2 GHz)

  • with single mono-frequency antenna

    (80 MHz) - for manual and airborne survey

Applications:

  • Utility detection (cables/pipes).

  • Archaeological research.

  • Surface cavity detection.

  • Identification and delimitation of buried bodies.

  • Asphalt and masonry/concrete degradation mapping.

  • Integrity control/dimensioning of RC structures.

  • Verification of reinforcements in various structures.

  • Magnetic and Electromagnetic Survey

    (Sonic-Ultrasonic Range Frequencies)

  • Ultrasonic and other Borehole Survey

    - Ultrasonic Cross-Hole

    - Optical Televiewer

    - Gamma-Ray logs

  • Gravimetric Survey

  • Thermal Survey

Applications:

  • Detecting underground cables and pipelines.

  • Locating buried archaeological remains.

  • Identifying voids or sinkholes.

  • Testing concrete integrity with Cross-Hole.

  • Mapping fractures with Optical Televiewer.

  • Determining minerals with Gamma-ray logs.

  • Locating groundwater via density mapping.

  • Detecting heat leaks and geothermal zones.

GEOOLOGICAL+

GEOTECHNICAL

SURVEY

  • Geological mapping

  • Structural and Geomechanical Survey

  • Geotechnical Survey and Monitoring

    - CPT, CPTE, CPTU, DPSH

    - Laboratory geotechnical tests on soil and rocks

    - In situ Permeability Tests

    - In situ Density Tests

    - Static and Dynamic Plate Load Tests (FWD - Falling Weight Deflectometer)

    - Pile Load Tests

Applications:

• Mapping subsurface geological formations.

 • Identifying fault lines and stratigraphic layers.

 • Locating mineral deposits and groundwater.

 • Testing soil properties with CPT methods.

 • Evaluating rock strength in laboratory tests.

 • Measuring soil permeability in situ.

 • Assessing soil density in construction sites.

 • Performing plate load tests for stability.

 • Testing pile capacity under load conditions.

  • Hydrogeological Survey and Monitoring

- Piezometric measurements

- Chemical-physical parameters monitoring

- Rapid and long-term pumping and/or injection tests

- Step-flow tests

- Interference tests between wells

- Temperature and electrical conductivity tests

- Continuous monitoring of water levels, electrical conductivity and temperature with data logger

- Chemical water analysis

Applications:

  • Monitoring groundwater levels to evaluate aquifer recharge.

  • Testing water quality for industrial or agricultural use.

  • Conducting long-term pumping tests for well capacity design.

  • Measuring flow rates for irrigation system planning.

  • Assessing well interference to optimize water extraction.

  • Identifying salinity changes in coastal aquifers.

  • Continuously tracking water levels during construction projects.

  • Analyzing pollutants in groundwater for environmental compliance.

TOPOGRAPHY+

REMOTE SENSING

SURVEY

  • GPS Survey

  • Topographic Survey and Monitoring (Terrestrial, Airborne and Satellite)

Applications:

  • Mapping property boundaries for land development.

  • Creating elevation models for construction planning.

  • Monitoring terrain changes after natural disasters.

  • Generating 3D topographic maps for urban planning.

  • Tracking land deformation with satellite data.

  • Surveying large areas quickly with drone LiDAR.

  • Monitoring structural shifts in bridges and dams.

  • Supporting precision farming with GPS mapping.

  • Terrestrial Survey with Interferometer and Total Station

-    Multispectral Survey (Airborne and Satellite)

-    Hyperspectral Survey (Airborne and Satellite)

-    LiDAR Survey (Airbrone)

-    Radar Interferometry (Satellite)

Applications:

  • Tracking land subsidence to prevent infrastructure damage.

  • Surveying construction sites for precise boundary mapping.

  • Analyzing crop health to optimize agricultural yields.

  • Locating mineral deposits for mining exploration.

  • Mapping forests to assess deforestation impacts.

  • Monitoring landslides to protect residential areas.

  • Tracking urban expansion to support city planning.

  • Bathymetric survey (Boat Drone and Satellite)

    - Bathymetric maps

    - DownScan and SideScan Imaging

    - Seismic Sub-Bottom profiles

Applications:

  • Mapping seafloor depths to plan marine construction projects.

  • Creating bathymetric maps for navigation safety.

  • Inspecting underwater structures with DownScan imaging.

  • Surveying large areas for wreckage with SideScan imaging.

  • Analyzing sediment layers for pipeline installation.

  • Profiling seabed substructures for wind farm foundations.

  • Monitoring erosion in coastal areas for environmental protection.

STRUCTURAL DIAGNOSTIC TEST IN

BUILDINGS AND CIVIL ENEGENEERING

  • Laser Scanner survey

  • In situ tests on reinforced concrete

  • Structural monitoring

  • Structural sampling

  • Visual inspection

  • Endoscopic imaging

  • Thermal survey

Applications:

  • Creating 3D models of buildings with laser scanning for restoration planning.

  • Testing reinforced concrete strength on-site for safety compliance.

  • Monitoring structural shifts in real-time to detect damage.

  • Sampling materials to analyze degradation in heritage sites.

  • Inspecting structures visually to identify surface cracks.

  • Using endoscopic imaging to check internal cavities for defects.

  • Conducting thermal surveys to locate energy leaks in buildings.

INTEGRATED STUDY+

CONSULTING

  • Environmental and climate analysis

  • Detailed geotechnical characterization

  • Landslide and rockfall hazard analysis

  • Hydrological and Hydrogeological analysis

  • Liquefaction hazard analysis

  • Local Seismic Response analysis

  • Mining and dump characterization

  • Support for the planning of large-scale geological engineering project (roads, railways, bridges, dumps, dams, power plants, oil-fields, pipelines, airports)

  • Geoarchaeological research

  • Research and mapping of underground utilities

  • Multi-purpose mapping

Applications:

  • Analyzing environmental and climate data to guide land use planning.

  • Characterizing geotechnical properties for foundation design.

  • Assessing landslide risks to protect infrastructure.

  • Modeling hydrological systems for flood prevention.

  • Evaluating liquefaction hazards for seismic safety.

  • Analyzing local seismic response to design resilient structures.

  • Analyzing mining sites and dumps to assess material composition.

  • Planning geological studies for large-scale infrastructure projects.

  • Conducting geoarchaeological research to uncover buried artifacts.

  • Mapping underground utilities for urban development.

  • Creating multi-purpose maps for land and resource management.

  • Evaluating geological risks for dams and power plants.

  • Designing pipelines with detailed geotechnical analysis.

  • Supporting airport construction with precise geological surveys.

  • Mitigating hazards for roads and railways with integrated studies.

  • Assessing terrain stability for bridge and dump construction.

DATA PROCESSING CENTER

We can also process data derived from third parties.

TOOLS & EQUIPMENT

Georesistivimeters:

3 MAE X612 EM georesistivimeters for 2D/3D multielectrode electrical tomography or SEV, with 96 channels (cables spaced 3, 5, and 10 meters).

Seismographs:

3 PASI GEA 24 seismographs for seismic prospecting, ranging from 24 to 48 channels (cables spaced 3 and 5 meters).

2 MAE Sysmatrack seismographs for seismic prospecting, ranging from 24 to 48 channels (cables spaced 3 and 5 meters).

Geophones:

1 MAE S3S tri-axial surface geophone with a frequency range of 2 Hz.

2 Down-Hole MAE S3 geophones (3 components) and 1 Down-Hole AMBROGEO DH geophone (3 components).

1 AMBROGEO CH 6-geophone chain for Cross Hole surveys.

1 AMBROGEO CH borehole energizer.

Ground Penetrating Radar (GPR):

1 IDS Chaser XR GPR (broadband antenna 80 MHz-1.5 GHz).

1 IDS HI MODE GPR (dual frequency antenna 200-600 MHz).

1 IDS Stream DP GPR (multiple antennas with 600 MHz frequency).

1 IDS 2 GHz GPR (2 GHz frequency antenna).

1 MALA Geo Drone GPR (80 MHz frequency antenna).

Electromagnetic Equipment:

1 GEOPHEX GEM 2 multifrequency electromagnetometer (frequency range 30 Hz to 93 kHz) with GPS module.

1 EMfad UG-12 DS electromagnetic detection system.

Magnetometers:

1 SENSYS MagWalk magnetometer with dual triaxial fluxgate sensor and GPS module.

Thermocamera:

1 FLIR B2 high-resolution thermographic camera.

Penetrometers:

1 Sunda DPM 30 medium dynamic penetrometer (30 kg).

1 Pagani TG63-200KN heavy static-dynamic penetrometer (63 kg).

Geomechanical & Geotechnical Analysis Tools:

2 sclerometers, 1 Burton comb, 2 Pocket Penetrometers, and 1 Vane Test tool for in-situ geomechanical and geotechnical analysis.

GPS Receivers:

1 E-Survey e300 PRO RTK GNSS receiver integrated with Italpos system.

2 EMLID REACH RS2 RTK GNSS receivers integrated with Italpos system.

Drones:

1 AUTEL RTK drone for aerial photogrammetric surveys.

1 DJI Matrice 350 RTK drone with ZENMUSE L2 LIDAR sensor.

Boat-Drone:

1 boat-drone equipped with single multibeam and imaging sensors for river/lake/sea bottom reconstruction.

Laser Scanners:

1 FARO S70 Laser Scanner (resolution 1,000,000 points per second, range up to 70 m).

1 GEOSLAM ZEB HORIZON Laser Scanner (resolution 360,000 points per second, range up to 70 m).

Total Station:

1 GEOMAX ZOOM 90 robotic total station (angular precision 1” (0.3 mgon), 2” (0.6 mgon); distance precision 3500 m / 1 mm + 15 ppm / typical 0.8 sec).

Cross-Hole Sonic System:

1 acquisition system for Cross-Hole sonic tests.

SOFTWARE

Geophysical Data Processing:

RES2DINV & RES3DINV (2D-3D resistivity and IP processing).

TOMOLAB (2D-3D resistivity and IP processing).

ERTLAB (2D and 3D resistivity and IP processing).

SURFSEIS (1D-2D MASW seismic processing).

MASW (1D-2D MASW seismic processing).

RAYFRACT (seismic tomography processing).

DOWNHOLE (Down Hole seismic processing).

RAYFRACT (seismic refraction processing).

GEOGIGA SEISMIC PRO (reflection seismic data processing).

Magnetic and Electromagnetic Data Processing:

MAG DRONE (magnetometric data processing).

WIN GEM2 (electromagnetic data processing).

Visualization & Modeling:

SURFER (2D/3D visualization of geophysical, topographic, and point cloud data).

VOXLER (3D visualization of geophysical data).

ANALIST (point cloud modeling in Autocad environment).

PHOTOSCAN (photogrammetric processing and 3D restitution).

GEOSLAM DRAW (Lidar and Laser Scanner processing and 2D/3D restitution).

RECAP PRO (mesh or point cloud realization).

Geotechnical Analysis:

GEOSTRU PS – ADVANCED (basic and site seismic hazard assessment).

GEOSTRU RSL III (1D local seismic response).

LSR 2D (2D local seismic response).

LOADCAP (bearing capacity calculation and settlement of foundations on soils/rocks).

SLOPE (slope stability verification in loose or rocky soils, in static and dynamic seismic conditions).

Rock Mechanics (geomechanical classification, stability analysis, impact force assessment of a boulder, collapse prediction in case of earthquake).

Slope Stability and Structural Analysis:

SLOPE (slope stability verification in loose or rocky soils).

GDW (analysis of gabion walls, weirs, and global stability analysis).

HYDROLOGIC RISK (hydrological-hydraulic risk calculation of a basin or series of basins).

LIQUITER (soil liquefaction analysis in seismic conditions).

MDC and MP (calculation and verification of retaining walls and foundation piles/micropiles).

SPW (design and calculation of sheet piles).

General Software:

CAD, OFFICE packages.

GGM provides a high-profile technical-scientific service in the planning and implementation of surveys, studies and monitoring of geophysical geological and geotechnical processes related to civil and environmental engineering, geological mapping, mining and archaeological research.

Certified by UNI EN ISO 9001:2015