Scientific data as a basis for targeted tunnel maintenance
During the large-scale renovation of the Antwerp Beveren Tunnel (R2), SANACON was commissioned by the contractor consortium TM Bever and the client AWV for a crucial second opinion . Previous studies provided a picture that did not fully align with the findings on the ground; the available dataset was too limited for the complexity of the tunnel .
Our approach: Making the invisible visible Through a thorough research campaign—consisting of visual inspections, extensive concrete cover measurements, and laboratory analyses of concrete cores—SANACON accurately mapped the current condition of the tunnel structure . Our research focused specifically on the remaining service life and the risk of reinforcement corrosion due to carbonation and chlorides .
Some key points of our expertise in this project:
Identification of concrete types: We discovered the use of different concrete types, each requiring a specific approach .
Customized risk analysis: Thanks to additional sampling, we were able to make a clear distinction between zones where structural integrity was guaranteed and risk zones with local brackish water leakage .
Data-driven advice: For critical locations, we formulated concrete repair and maintenance actions. For other areas, we recommended monitoring via sensors to avoid unnecessary and expensive interventions .
Result: Thanks to the use of scientifically sound research methods and data analysis via the DIMCOST platform , the manager now has a reliable asset management plan . This allows the lifespan of this vital link in the Port of Antwerp to be extended cost-effectively and safely .
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