High pressure gas pipeline: DFOS-based health control of safety-critical infrastructure
The 500-mm diameter gas pipeline in question is located in a mining area, where extremely large displacements could appear. 180 m long section was equipped with a number of EpsilonRebars and 3DSensors, installed both directly on the steel surface of the pipe as well in the surrounding ground. Reliable structural control of such safety-critical structures is necessary due to the extremely high consequences of failure. Nerve- Sensors allowed for precise control in the long-term.
DFOS Sensors Installed: EpsilonRebar and 3DSensor
Project challenges
Benefits of using the DFOS monitoring system
Results of using the DFOS monitoring system
Nerve-Sensors allowed for measurements of strains, displacements and temperatures over the entire gas pipeline section. All local events (including welds and turns) were clearly detectable during tightness tests and one-year monitoring. Sensors were read using different optical dataloggers at the same time. Also, a number of installed reference spot gauges proved the perfect accuracy and performance of Nerve-Sensors in difficult geotechnical conditions. Example results of temperature distributions from three subsequent months (April, May, June) are shown below.
Technical specifications
Example results
Recomendations (optional)
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John Doe