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Dopo diverse infiltrazioni nella galleria di base del Lötschberg, il gestore BLS intende intervenire per canalizzare acqua e fanghi in una nuova caverna esterna al tunnel inaugurata alla fine del 2007. La società ferroviaria spera di poter iniziare la costruzione già in autunno. Come sospettato, il danno si è verificato nell'area di un pozzo esplorativo non sigillato che convoglia l'acqua in uno dei due tubi presenti sul lato vallesano.
La BLS prevede un tempo di costruzione di diversi mesi con costi a sette o otto cifre, come ha dichiarato martedì ai media Stefan Irngartinger, project manager della BLS per il transito alpino.
L'infiltrazione si è verificata nel tratto vallesano dove il tunnel è già a due tubi
La canna est della galleria di base tra Ferden e St. German dovrà essere chiusa durante il periodo di costruzione. Ciò significa che le operazioni ferroviarie saranno condotte attraverso la galleria ovest in esercizio a binario unico per diversi mesi. La BLS vuole mantenere i treni passeggeri a cadenza oraria tra il Vallese e Berna.
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