Variations on an NATM theme
1992; Elsevier BV; Volume: 29; Issue: 4 Linguagem: Inglês
10.1016/0148-9062(92)91007-r
ISSN1879-2073
AutoresM Deinhard, H Prinz, Kurt Zeidler,
Tópico(s)Grouting, Rheology, and Soil Mechanics
ResumoAlthough short, at only 522 meters, the two-lane Oberrieden road tunnel in Germany requires three different tunneling techniques to allow safe excavation directly through a 120-year old man-made embankment holding two railway tracks, under a section of very shallow sandy overburden, and on through a hill of Bunter Sandstone. This article describes the tunneling methods used: barrel vault method, door-frame slab method, regular NATM rock tunneling in Bunter Sandstone, and cut-and-cover tunneling.
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