As part of the internship at FerrovieNord S.p.A. different techniques were analyzed for the identification and monitoring of landslides involving railway-type infrastructures. Hydrogeological disruptions, as we know, have always had a major impact on transport systems, with even more significant effects in the case of poorly-branched networks such as the railways network, which often does not offer viable alternatives of connec-tion in case of unavailability of an arc. The control of possible failure of the railway embankment represents, for the Line Oper-ator, a commitment aimed at maintaining high safety standards. Following a landslide event in 2002 near Luvinate (VA), FerrovieNord has identified four risk areas to be controlled. This project, based on the “continuous monitoring” of the identified areas, aims in-stead to be the continuation and the development of a previous work focused on the “discontinuous monitoring” of the same areas. As distance monitoring system, FerrovieNord opted for the use of a well-established technology - in use in RFI for the control of the Continuous Welded Rail (or CWR), developed by the Italian Company Pisani of Voghera - suitably modified. The new system, called CERTIMOVE, is based on LEICA DISTO d810 diastimeter to measure the distance between fixed supports and reflective supports in the “potential moving slope”. The goal of the elaborate is to define an effective, versatile, low-cost monitoring system and the ability to transmit and process data remotely. In a first part, we analyze the possible types of movement that could affect the slopes. A risk analysis is then defined, by introducing experimentally “factors, indexes, weights” for the identification of potentially moving areas in which to insert the moni-toring system. In a second part, we come to define the system by analyzing different tools and hypoth-esizing different geometric solutions as well as to establish the “system hardware and software specifications”. In the last part (Chapt. 6), the implementation of the monitoring system is studied to au-tomatically stop the train running in case of imminent danger.
Nell’ambito del tirocinio presso Ferrovie Nord S.p.A. sono state analizzate diverse tec-niche per l’individuazione e il monitoraggio di frane che interessano infrastrutture di tipo ferroviario. I dissesti idrogeologici, come noto, hanno sempre avuto un forte impatto sui sistemi di trasporto, con effetti ancor più rilevanti nel caso di reti poco ramificate come quella fer-roviaria che, spesso, non offre alternative valide di collegamento in caso di inagibilità di un arco. Il controllo di possibili cedimenti del rilevato ferroviario rappresenta, per il Gestore della linea, un impegno finalizzato al mantenimento di alti standard di sicurezza. A seguito di un evento franoso nel 2002 in zona Luvinate, Ferrovie Nord ha individuato quattro aree a rischio da controllare. La presente Tesi, incentrata sul monitoraggio di tipo “continuo” effettuato nelle aree individuate, vuole essere la prosecuzione e lo sviluppo di una Tesi precedente incentrata invece sul monitoraggio di tipo “discontinuo” effettuato nelle stesse aree. Come sistema di osservazione Ferrovie Nord ha optato per l’utilizzo di una tecnologia già consolidata – in uso presso RFI per il controllo della Lunga Rotaia Saldata, messo a punto dalla ditta Pisani di Voghera - opportunamente modificata. Il nuovo sistema, denominato CERTIMOVE, è basato sulla misura, tramite distanziome-tro commerciale laser, di distanze tra supporti fissi e supporti di riflessione infissi nella scarpata potenzialmente in movimento. L’obiettivo dell’elaborato è definire un sistema di monitoraggio efficace, versatile, a basso costo, e con la possibilità di capacità di trasmettere ed elaborare dati da remoto. In una prima parte vengono analizzati i possibili tipi di movimento che potrebbero inte-ressare le scarpate. Viene in seguito definita un’analisi del rischio, introducendo sperimentalmente “fattori, indici, pesi” per l’individuazione delle aree potenzialmente in movimento in cui inserire il sistema di monitoraggio. In una seconda parte si giunge a definire il sistema nel suo complesso analizzando diver-si strumenti e ipotizzando diverse soluzioni geometriche oltre che a configurare le “spe-cifiche hardware e software del sistema”. Nell’ultima parte (cap. 6) si studia l’implementazione del sistema di monitoraggio per ar-restare automaticamente la marcia dei treni in caso di imminente pericolo.
Monitoraggio continuo con sistema Certimove di una scarpata ferroviaria lungo la linea Varese-Laveno di FN
BONEZZI, MICHELE
2017/2018
Abstract
As part of the internship at FerrovieNord S.p.A. different techniques were analyzed for the identification and monitoring of landslides involving railway-type infrastructures. Hydrogeological disruptions, as we know, have always had a major impact on transport systems, with even more significant effects in the case of poorly-branched networks such as the railways network, which often does not offer viable alternatives of connec-tion in case of unavailability of an arc. The control of possible failure of the railway embankment represents, for the Line Oper-ator, a commitment aimed at maintaining high safety standards. Following a landslide event in 2002 near Luvinate (VA), FerrovieNord has identified four risk areas to be controlled. This project, based on the “continuous monitoring” of the identified areas, aims in-stead to be the continuation and the development of a previous work focused on the “discontinuous monitoring” of the same areas. As distance monitoring system, FerrovieNord opted for the use of a well-established technology - in use in RFI for the control of the Continuous Welded Rail (or CWR), developed by the Italian Company Pisani of Voghera - suitably modified. The new system, called CERTIMOVE, is based on LEICA DISTO d810 diastimeter to measure the distance between fixed supports and reflective supports in the “potential moving slope”. The goal of the elaborate is to define an effective, versatile, low-cost monitoring system and the ability to transmit and process data remotely. In a first part, we analyze the possible types of movement that could affect the slopes. A risk analysis is then defined, by introducing experimentally “factors, indexes, weights” for the identification of potentially moving areas in which to insert the moni-toring system. In a second part, we come to define the system by analyzing different tools and hypoth-esizing different geometric solutions as well as to establish the “system hardware and software specifications”. In the last part (Chapt. 6), the implementation of the monitoring system is studied to au-tomatically stop the train running in case of imminent danger.File | Dimensione | Formato | |
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https://hdl.handle.net/10589/140144