The designed intervention envisaged the construction of a bank diaphragm in the section of the left embankment from the access roundabout to the road bridge in the municipality of Ponte di Piave southward, up to approximately the municipal boundary with Salgareda. The intervention aims to eliminate the possibility of siphoning or infiltration phenomena in the event of a flood of the Piave River. Based on the conducted investigations, the possible hydraulic filtration movements that can occur in the embankment and sub-embankment during flood events were modeled. Stability verification was carried out using the Jambu method, considering circular-shaped surfaces, while for the siphoning phenomenon, the most critical area to this phenomenon, located at the base of the embankment on the countryside side, was analyzed, whether or not the waterproof diaphragm in the project is present. Subsequently, infiltration verification was conducted. The diaphragm was created using the jet-grouting technique, a commonly applied design solution in similar cases. Among the peculiarities of the intervention, the interference of the construction site with local traffic, and more precisely with the provincial road road 34 “Sinistra Piave”, is of significant importance as it is a vital artery for road connection to the maritime area of Jesolo.
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