PSI - Issue 84

Lorenzo Di Taranto et al. / Procedia Structural Integrity 84 (2026) 1007–1014

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Fig. 5. correlation between inclinometer displacements along vertical 2 and the deep piezometric level (-28 m) along the same vertical, from 01/01/2023 to 01/12/2024.

2.4. Structural Monitoring The investigation of the structural behavior involved both viaduct abutments through the use of three tiltmeter units: sensor CRK01 positioned on the east face, and sensors CRK11 and CRK13 located on the west face. The analyzed time series, characterized by continuity without gaps or reading artifacts, span from June 29, 2024, to December 6, 2024 (Fig. 6).

Fig. 6. comparison of the displacement trends over time for tiltmeters CRK01, CRK11, and CRK13 vs. the inclinometer displacements from vertical 2.

Cross-comparison between the tiltmeter records and the results of the inclinometric investigations confirms a clear congruence in the deformation kinematics, exhibiting overlapping orders of magnitude and acceleration profiles. As illustrated in the graphical plots in Figure 6, the displacement trend is substantially uniform, although a clear temporal evolution of the phenomenon can be identified. Specifically, a significant increase in the displacement gradient is observed during September 2024; this evidence is simultaneously reflected in the inclinometric data, which recorded