Strains and displacements at the base of a road embankment
The road embankment was constructed above a substrate reinforced with concrete columns. The transmission layer between the columns and earth body of the structure was equipped with Nerve-Sensors: EpsilonRebars (ER) and 3DSensors for measuring strains and vertical displacements respectively. A total number of 16 sensors were installed both in longitudinal and transverse directions. Furthermore, the sensors were used for simultaneous measurements of temperatures.
DFOS Sensors Installed: EpsilonRebar and 3DSensor
Project challenges
Benefits of using the DFOS monitoring system
Results of using the DFOS monitoring system
The measurement sessions took place during the construction process. The figure below shows example displacement profiles obtained from transverse 3DSensors. The local effects caused by the presence of concrete columns are clearly detectable. This comprehensive data could not be gained from conventional sensing techniques. It can be used for calibration numerical models and reducing uncertainties, which are especially important during geotechnical design.
Technical specifications
Example results
Recomendations (optional)
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John Doe