Geophysical Applications Advantagessurface and borehole geophysics

Surface and Borehole Geophysics. Surface and borehole geophysics.
Preparing to Lower an Optical Televiewer Probe Into a Bedrock Borehole. Preparing to lower an optical televiewer probe into a bedrock borehole.

Geophysical services from Geophysical Applications, Inc. enhance a wide variety of projects, including:

Environmental Site Assessments:

  • Detecting underground tanks, drums, and unexploded ordnance (UXO)
  • Delineating lagoons, trenches, and excavations
  • Mapping landfill boundaries and thickness
  • Characterizing landfill materials and disposal extent
  • Detecting contaminant plumes and estimating migration directions
  • Locating septic systems, drain pipes, and other conduits
  • Detecting clay-liner leaks

Hydrogeologic Investigations:

  • Profiling depths to bedrock, groundwater, and overburden strata
  • Locating transmissive bedrock fractures, and measuring fracture dip angles and down-dip compass azimuths
  • Measuring saturated overburden thickness
  • Detecting weathered and fractured bedrock
  • Evaluating continuity and depth of clay strata
  • Sinkhole detection and delineation

Geotechnical and NDT Studies:

  • Detecting rebar, pipes, and conduits within concrete
  • Dynamic elastic moduli measurements in soil, bedrock, and concrete
  • Verifying pavement and subbase thicknesses along highways and railroads
  • Identifying void locations and depths beneath asphalt and concrete
  • Profiling depths to bedrock, groundwater, and overburden strata
  • Estimating material rippability
  • Determining earth resistance for high-voltage grounding systems
  • Locating bedrock fractures and faults
  • Delineating geologic contacts and lithologic changes
  • Detecting buried utilities and storm drains
  • Locating voids created by pipe installation or leaks
  • Monitoring void development within dams and under pavement
  • Delineating sinkholes in karst terrain