Frequently Asked Questions

GPR is a non-destructive geophysical method that transmits electromagnetic energy into the ground or a structure and records reflected responses from changes in material properties. It is commonly used to investigate buried utilities, voids, reinforcement and other subsurface features.

There is no universal depth. Effective penetration depends on antenna frequency, target size, soil conductivity, moisture, salinity and site conditions. Dry resistive materials may allow greater penetration, while conductive clay or saline ground can reduce it significantly.

GPR can detect some non-metallic utilities when there is sufficient contrast between the target, trench backfill and surrounding material. Results depend on diameter, depth, material and ground conditions, so complementary methods and verification are often recommended.

Electromagnetic locating is effective for many conductive or traceable utilities while GPR can provide evidence of both metallic and non-metallic features. Combining methods reduces dependence on a single detection technique and improves interpretation confidence.

Traceable conductive cables can often be located using electromagnetic methods, and GPR may provide supporting evidence. A geophysical survey does not replace electrical isolation procedures, permits or safe excavation practices.

GPR is a non-destructive method and is widely used to locate reinforcement, conduits and post-tension features before drilling or coring. The scan should be interpreted in relation to the slab thickness, access and reinforcement congestion.

Yes. Concrete scanning can be used to identify embedded hazards and support selection of safer coring or drilling locations. Final drilling approval remains subject to the project’s permit and engineering controls.

Provide the site location, approximate area or route length, target depth, planned excavation or drilling activity, expected utility types, access restrictions and any available CAD or PDF drawings.

Depending on scope, deliverables can include field markings, CAD drawings, GIS-compatible data, X/Y/Z utility schedules, interpreted radar information, survey coverage plans and technical reports describing findings and limitations.

Depth is an estimate derived from the measured response and assumed or calibrated radar-wave velocity. Where depth is critical, it should be verified using appropriate physical exposure, trial pits or other project-approved methods.

Yes. Projects can be mobilized across Saudi Arabia, including Riyadh, Jeddah, the Eastern Province, Al-Qassim, Tabuk and remote infrastructure corridors, subject to scope, access and project requirements.

Boreholes provide direct subsurface information through drilling, sampling and in-situ testing. They are used to establish soil and rock conditions for foundations, roads, utilities and other civil works.

Grouting introduces engineered material into voids, joints or weak ground to fill spaces, reduce permeability or improve local ground conditions. The appropriate grouting method depends on the defect, geology and engineering objective.

Depending on the target, seismic methods, electrical resistivity, electromagnetic locating and other geophysical techniques may complement GPR. Method selection should be based on the engineering question rather than using one instrument for every site.

No non-intrusive survey can guarantee detection of every buried object. Detection is affected by access, depth, target properties, interference and ground conditions. Reports should therefore state limitations and recommend verification where consequences are high.

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