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Soumagne Tunnel : ウィキペディア英語版 | Soumagne Tunnel The Soumagne Tunnel is the longest rail tunnel in Belgium, with a length of . Built on the HSL 3 line of the Belgian TGV service for Brussels-Liège-Cologne, the tunnel was completed in 2004. The new line was opened on 12 June 2009. The tunnel links the Liège conurbation with the Herve plateau at a depth of . Construction and outfitting of the tunnel took place from 2001 to 2005, with the first trains passing through in 2009. The entrances are at Vaux-sous-Chèvremont and Soumagne . The tunnel passes under Chaudfontaine, Fléron, Romsée and Ayeneux. The bored section is , extended by covered sections of respectively 177 and 388 m. Dozens of geological layers of differing hardness had to be tunnelled through, lime layers needing to be blasted through with dynamite. The tunnel reaches a depth of 127 m in some areas; it has an average ramp height of 1.7%, with a maximum of 2% at the entrance in Soumagne. The free space profile in the tunnel is approximately , which restricts speeds to . == See also ==
* List of tunnels in Belgium
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Soumagne Tunnel」の詳細全文を読む
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