ARCITUNLIN
| Title | Assessment, Risk Classification and Interventions on TUNnel LINings |
| Research Topic | Sviluppo di metodologie di valutazione dello stato di conservazione e ripristino/rinforzo dello stato di conservazione di rivestimenti di gallerie esistenti |
| Partnership | Università di Pisa (coord.) Politecnico di Torino Università di Brescia Sapienza Università di Roma Università di Perugia Università Kore di Enna Politecnico di Milano |
| Principal Investigator | Francesco Morelli, UNIPI |
| Budget | 170 k€ |
| Duration | 24 months |
| Abstract | The first objective of the project is to critically assess the guidelines and determine their applicability to pre-cast tunnel linings. The second aspect involves evaluating the risk variation resulting from temporary interventions. Indeed, these temporary interventions, which typically have a validity of about three years, are implemented in response to potential hazards identified during in-situ inspections, especially in the external concrete layer. The mentioned interventions are not specifically tailored based on a reliable understanding of the specific situation. Instead, they often involve the adoption of repetitive general schemes. However, while these temporary interventions mitigate the structural risk, the presence of construction works in the tunnel increases the probability of traffic accidents. The second objective is to propose a method for assessing the structural and geotechnical risks of tunnel linings, providing a more reliable decision-making procedure to evaluate the convenience of performing temporary strengthening interventions. Finally, the last two objectives are associated to delineating strengthening interventions for damaged tunnel linings. |
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