The railway connections between the Po area and the central Tyrrhenian part of Italy had already been in place since the XIX century with the Pontremolese, Porrettana and Faentina railway lines; but these lines did not offer, either singularly, or together, a capable, rapid and economic means of transit needed for the amount of traffic that went along the axis of the Peninsula (DE MARTINO, 1934). In order to overcame these limitation the Eng. Protche project was considered the best, the Apennines would have been crossed by means of a great 18.023 m tunnel, with a pass at a height of 328 m above sea level, and would have slopes reaching of no more than 12%o.
Rivisitazione geologica della Grande Galleria dell’Appennino / M. Coli; A. Pinzani. - In: BOLLETTINO DELLA SOCIETÀ GEOLOGICA ITALIANA. - ISSN 0037-8763. - STAMPA. - 128:(2009), pp. 747-757. [10.3301/IJG.2009.128.3.747]
Rivisitazione geologica della Grande Galleria dell’Appennino
COLI, MASSIMO;
2009
Abstract
The railway connections between the Po area and the central Tyrrhenian part of Italy had already been in place since the XIX century with the Pontremolese, Porrettana and Faentina railway lines; but these lines did not offer, either singularly, or together, a capable, rapid and economic means of transit needed for the amount of traffic that went along the axis of the Peninsula (DE MARTINO, 1934). In order to overcame these limitation the Eng. Protche project was considered the best, the Apennines would have been crossed by means of a great 18.023 m tunnel, with a pass at a height of 328 m above sea level, and would have slopes reaching of no more than 12%o.
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