Geophysical Investigation
Non-destructive geophysical surveys for subsurface investigation, geological profiling and engineering analysis using advanced field testing methods.
Geophysical
Investigation
Velciti provides geophysical investigation services to evaluate subsurface conditions using non-destructive field techniques. Our surveys support engineering design, geological assessment and infrastructure planning.
Using resistivity, seismic and GPR methods, we identify bedrock profiles, soil stratification, groundwater conditions and subsurface anomalies to support informed engineering decisions.
- Electrical Resistivity Survey
- Seismic Refraction Survey
- MASW Survey
- Subsurface Profiling
- Geological Interpretation
Geophysical Services
Advanced non-destructive testing and surface wave analysis to map geological anomalies, bedrock profiles, and dynamic soil parameters.
Electrical Resistivity Survey
1D VES and 2D/3D resistivity tomography (ERT) to detect groundwater, bedrock depth and subsurface cavities.
Seismic Refraction Survey
Measures seismic P-wave travel times to determine rock rippability, layering and depth to bedrock.
MASW Survey
Evaluates shear wave velocity (Vs) profiles for site seismic classification (Vs30) and soil stiffness.
Cross Hole & Down Hole Seismic
In-situ measurement of P and S wave velocities within boreholes to determine dynamic elastic moduli.
Subsurface Profiling
Integrates GPR and other geophysical data to map buried utilities, voids and strata.
Geological Mapping
Field mapping of surface outcrops, lithology, fault lines and structural geology for infrastructure projects.
Key Deliverables
Comprehensive, data-driven reports and high-resolution models engineered for immediate integration into your structural and geotechnical designs.
Shear Wave (Vs) Profiles
Detailed 1D and 2D profiles of subsurface shear wave velocities generated from MASW analysis.
Resistivity Tomograms
Visual 2D/3D electrical resistivity models highlighting varying strata, aquifers, and anomalous zones.
Bedrock Topography Maps
Continuous mapping of the soil-rock interface to optimize pile lengths and excavation quantities.
Dynamic Soil Parameters
Calculation of Poisson's Ratio, Shear Modulus (G), and Young's Modulus (E) from cross-hole data.
Seismic Site Classification
Vs30 calculations required for building code compliance and earthquake engineering design.
Geological Cross-Sections
Detailed interpretations of lithological boundaries, fault zones, and structural unconformities.
Groundwater Potential Zones
Identification and mapping of aquifers, fracture networks, and water table depths.
Comprehensive Factual Report
Integration of field data, calibration records, analytical charts, and expert geotechnical interpretation.
Where We Apply It
Our specialized geophysical surveys mitigate risk across diverse civil, environmental, and infrastructure sectors.
Heavy Infrastructure & Bridges
Seismic site characterization and bedrock profiling for pile foundations, abutments, and long-span structures.
Dams & Hydroelectric Projects
Assessing rock mass quality, fault zone delineation, and leakage pathways using electrical and seismic tomography.
Tunnels & Underground Mining
Geological mapping and forward probing for soft ground zones, high water pressure areas, and rock rippability.
Groundwater & Hydrogeology
Pinpointing high-yield aquifers, delineating saline intrusion boundaries, and assessing groundwater tables via ERT.
Urban Development & Railways
Detecting buried utilities, voids, sinkholes, and old foundations safely without disruptive excavation.
Earthquake Engineering
Providing essential dynamic site parameters (Vs, Vp, G, E) to determine soil liquefaction potential.
Environmental & Contamination
Mapping landfill boundaries, leachate migration plumes, and assessing the extent of soil contamination.
Landslides & Slope Stability
Investigating slip planes, monitoring structural weaknesses, and mapping failure zones in steep topographies.
Start a Project
Let's Reveal the
Subsurface Accurately
Elevate your next project with advanced, field-proven geophysical investigations and pan-India operational reach.