terra international surveys ltd. is based in Switzerland and provides, among other services, GPR surveys on large areas using vehicle mounted systems, real-time navigation and absolute georeferencing for reduction of field time. We specialise in the fast and non-invasive investigation of existing infrastructures and civil engineering structures using non-destructive measurement techniques across all industries.
AREAS OF EXPERTISE
• Building geometry investigation (supporting constructions, sub-surface components, etc.)
• Non-destructive investigation of road and railroad sub-bases and wear layers using Georadar
• Locating concrete reinforcements and tension cables (Georadar)
• Electromagnetic, active and passive locating of cables and wiring in buildings
• Pile testing for quality assurance purposes (pile integrity testing according to the low-strain method)