Lötschberg Base Tunnel – Passing under the BLS Mountain Railway Line at Frutigen
Author(s): |
Ulrich Straumann
Christof Roggli Hans-Jakob Ziegler |
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Medium: | journal article |
Language(s): | English |
Published in: | Felsbau, 2004, n. 4, v. 22 |
Page(s): | 31 |
Keywords: |
anchoring tunnelling starting cut
|