The highest road embankments in Poland – distributed temperature sensing (DTS)

To monitor the structural behaviour of the largest road embankments in Poland, we applied three independent measurement solutions: Inclify, SHMProfiler and EpsilonRebars from Nerve-Sensors. The latter were used to measure temperature distributions at the base along the entire width of the structure. Temperature results were used, among other things, to compensate for data from the two other measurement techniques.

DFOS Sensors Installed: EpsilonRebar

Project challenges

How to apply non-invasive diagnostics in demanding historic structures?
How to get precise measurement data to detect local damage and imperfection?
How to measure detailed strain profiles over the entire height of the brick masonry wall?

Benefits of using the DFOS monitoring system

Measurements of temperatures distributions along the entire embankment width
Reliable data for thermal compensation of other techniques
Robust solution for fast installation in extremely difficult geotechnical conditions
Unique knowledge for scientific analysis and numerical simulations (FEA)

Results of using the DFOS monitoring system

The measurements were performed at selected construction stages. The figure on the right shows example temperature distributions registered along the embankment base. We can observe high gradients (>10°C) depending on slope geometry, sun exposition and actual environmental conditions.

Technical specifications

67 600 measurement points
676 m of sensing path
8 x EpsilonReba
during construction

Example results

Recomendations (optional)

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John Doe

Project partner

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