Ground Penetrating Radar (GPR)
Survei Georadar
Ground Penetrating Radar (GPR) is a non-destructive geophysical method that uses high-frequency electromagnetic waves to detect objects and structures beneath the ground surface. This method provides real-time subsurface cross-section imaging with very high resolution.
Very high resolutionReal-time imagingNon-destructiveFast & portableMulti-frequency
Methods & Equipment
Profiling Mode
Continuous data acquisition along traverse lines for efficient subsurface cross-section mapping.
Grid Survey
Grid-based data acquisition to produce 3D subsurface maps and time-slice analysis.
CMP / WARR
Common Mid-Point or Wide Angle Reflection/Refraction for radar wave velocity determination in the medium.
Borehole GPR
GPR measurement in boreholes for inter-borehole structure mapping (cross-hole tomography).
Equipment Used
GSSI SIR-4000 GPR System
GSSI SIR-30 Multi-channel GPR
100 MHz, 270 MHz, 400 MHz, 900 MHz, 1600 MHz antennas
GSSI UtilityScan DF Dual Frequency
Survey wheel and RTK GPS for precision positioning
RADAN 7 software for processing and interpretation
Applications & Use Cases
Underground utility detection and mapping (pipes, cables, conduits)
Concrete structure inspection (rebar, void, delamination)
Cavity and void detection beneath road pavement
Archaeological and forensic surveys
Road pavement and runway thickness mapping
Buried tank and contamination detection
Foundation and building structure investigation
Shallow bedrock mapping
Standards & Regulations
ASTM D6432 — Standard Guide for Using the Surface Ground Penetrating Radar MethodASTM D4748 — Determining Thickness of Bound Pavement Layers Using GPRBS 5930:2015 — Code of Practice for Ground InvestigationsSNI 8460:2017 — Geotechnical Design Requirements
What You Receive
- 1Radargram subsurface cross-section for each traverse
- 2Utility and detected anomaly location map
- 33D model and time-slice analysis (for grid surveys)
- 4Detected object interpretation with depth estimation
- 5Technical recommendations and risk map
- 6Complete report with field documentation
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