The intervention involves visual and in-depth inspections of some tunnels on ANAS roads in the Veneto Region. Specifically in the first phase, all the interventions were located in order to catalog all possible problems. The inspection phase was carried out with the support of a digital camera and an Ipad equipped with a BMS (Bridge Management System)application. The subsequent phase involved on-site inspection following ANAS internal guidelines and compliant with the regulations of the Ministry of Infrastructure and Transport (MIT). In the post processing, the return of the inspections was processed by preparing a report detailed for each individual element of the inspected works with the defects found and their cause of origin. For completeness, plans and sections were attached schematic of the works, showing the optical cones representing the points of taking photos, and the defects at the point where they were detected on the work. Based on the findings of the visual inspections and in particular in order to further investigate possible critical issues, some investigations were sub-sequently proposed and carried out structural targeted, to assess in a concrete way and with direct feedback, the actual state of degradation of some structural elements of the selected works.
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