Description

IDS GeoRadar, industry leader in non-intrusive utility detection and mapping GPR, has brought its expertise to the tunneling industry exploiting the most advanced ground penetrating radar technologies and methodologies. Stream T is a revolutionary contactless GPR solution for tunnel inspection.

Tunnels are critical components of transportation network and regular inspections are mandatory to guarantee a high security level.

Stream T is the most advanced solution of successfully measurement of tunnel lining thickness, mapping of reinforcing, detection of cavities and location of wet areas.

Stream T is supplied in 2 different configurations to best meet the inspection and construction site requirements. The Full configuration includes both frequencies for Deep and Shallow monitoring at the same time, while the Mini configuration is optimized for Deep or Shallow survey with a smaller size system. All configurations include a dedicated mechanical frame which can be easily mounted on an extendable telescopic arm to enable rapid and safe surveying of the internal tunnel wall.

Stream T contactless antenna solution works up to 20 cm from the tunnel surface increasing the acquisition speed up to 60 Km/h-37.3 mph. The contactless solution also allows the system to be easily installed on a remote-controlled mechanical arm, increasing operator safety and avoiding operator fatigue.

Benefits of Stream T includes:

• Productivity: for a higher acquisition speed by 5 times vs traditional systems
• Operator safety:the antenna system can be easily installed on a remote-controlled mechanical arm
• Large area coverage: antenna footprint up to 100 cm improves structural assessment of tunnels thanks the 3D reconstruction
• Modular structure: the available configurations always permit to meet the inspection and construction site requirements

The best-in-class array solution

Stream T is the only turnkey solution on the market for tunnel inspection. It offers a unique multi-channel, multi-frequency and double-polarized lightweight GPR system able to map, both Deep and Shallow tunnel features in only one scan with the highest penetration and resolution at the same time.

Multiple configurations

Stream T is supplied in 2 different configurations to best meet the inspection and construction site requirements.
The Full configuration includes both frequencies for Deep and Shallow monitoring at the same time, while the Mini configuration is optimized for Deep or Shallow survey with a smaller size system.
All configurations include a dedicated mechanical frame which can be easily mounted on an extendable telescopic arm to enable rapid and safe surveying of the internal tunnel wall of the tunnel, able to collect data also in the lateral side.

Contactless data collection

Stream T contactless antenna solution works up to 20 cm from the tunnel surface increasing the acquisition speed (up to 60 Km/h-37.3 mph): productivity increases by 5 times compared to a traditional system. The contactless solution also allows the system to be easily installed on a remote-controlled mechanical arm, increasing operator safety and avoiding operator fatigue.

3D Data processing

The post-processing software GRED HD 3D CAD allows the user to simply detect and map anomalies in a 3D view.
The tomography developed by the array provides very clear and easily identifiable anomalies, greatly assisting interpretation and analysis with all results automatically exported to 3D CAD.

Software

GRED HD 3D CAD – Advanced GPR processing and imaging software

GRED HD 3D CAD is an advanced post-processing software enabling users with the following functionalities:

• Radar-scan viewer, filter and advanced filtering macros;
• Layer picking for automatic analysis of sub-layers;
• Tomographic map view (C-Scan) including radar scan fusion;
• 3D data visualisation;
• CAD Link;
• Advanced targeting using radar-scan and tomographic view;
• Complete set of options to navigate, cutting and marking anomalies

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