This thesis is part of the technical and design analysis for the construction of the Upper New Section of the Peschiera Aqueduct, a strategic infrastructure for the water supply of the city of Rome. After an introduction on the historical development of Rome’s water system and the origins of the Aqueduct, the study presents the technical characteristics of the infrastructure and the Salisano hydroelectric power plant, focusing on the interplay between potable water use and energy production. The core of the work consists of a critical review of the geological, geotechnical, and geophysical investigations previously carried out by ACEA during the design phase. The analysis highlights a significant lack of investigations, especially near the main structures, at the entry and exit zones of the TBMs, and along specific sensitive segments of the alignment. Considering the strategic relevance and complexity of the project, such shortcomings pose a risk for safe and informed design. In collaboration with the Technital team, several integrative investigations have been proposed. These include continuous core drillings, static and dynamic penetrometric tests, geophysical surveys (seismic, MASW and HVSR), as well as laboratory tests for the mechanical characterization of soils and rocks. These additions are essential for accurate geotechnical modelling and effective risk mitigation during construction.
La presente tesi si inserisce all’interno dell’analisi tecnico-progettuale per la realizzazione del Nuovo Tronco Superiore dell’Acquedotto del Peschiera, infrastruttura strategica per l’approvvigionamento idrico della città di Roma. Dopo un’introduzione dedicata all’evoluzione storica del sistema idrico romano e alla nascita dell’acquedotto, si analizzano le caratteristiche tecniche dell’opera e della centrale idroelettrica di Salisano, con un focus sulle interazioni tra utilizzo potabile e produzione energetica. L’elaborato si concentra poi su una valutazione critica delle indagini geologiche, geotecniche e geofisiche svolte da ACEA in fase progettuale. L’analisi condotta ha messo in luce una significativa carenza di interventi in fase progettuale, in particolare nei pressi dei manufatti principali, delle aree di imbocco e re-immissione delle TBM, nonché lungo alcuni tratti sensibili del tracciato. Vista la rilevanza strategica e la complessità dell’opera, tali lacune risultano limitanti per una progettazione consapevole e sicura. In collaborazione con il team di Technital, sono state dunque proposte numerose implementazioni alle indagini esistenti: tra queste, campagne di sondaggi a carotaggio continuo, prove penetrometriche statiche e dinamiche, misure geofisiche (sismiche, MASW e HVSR), oltre a prove di laboratorio per la caratterizzazione meccanica dei terreni e delle rocce. Tali interventi risultano essenziali per una corretta modellazione geotecnica e per la mitigazione dei rischi in fase esecutiva.
Il nuovo Tronco Superiore dell’Acquedotto del Peschiera: caratterizzazione e implementazione delle indagini geologiche e geotecniche per la progettazione esecutiva
FIORINI, ANDREA
2024/2025
Abstract
This thesis is part of the technical and design analysis for the construction of the Upper New Section of the Peschiera Aqueduct, a strategic infrastructure for the water supply of the city of Rome. After an introduction on the historical development of Rome’s water system and the origins of the Aqueduct, the study presents the technical characteristics of the infrastructure and the Salisano hydroelectric power plant, focusing on the interplay between potable water use and energy production. The core of the work consists of a critical review of the geological, geotechnical, and geophysical investigations previously carried out by ACEA during the design phase. The analysis highlights a significant lack of investigations, especially near the main structures, at the entry and exit zones of the TBMs, and along specific sensitive segments of the alignment. Considering the strategic relevance and complexity of the project, such shortcomings pose a risk for safe and informed design. In collaboration with the Technital team, several integrative investigations have been proposed. These include continuous core drillings, static and dynamic penetrometric tests, geophysical surveys (seismic, MASW and HVSR), as well as laboratory tests for the mechanical characterization of soils and rocks. These additions are essential for accurate geotechnical modelling and effective risk mitigation during construction.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/101713