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Cover Picture: Geomechanics and Tunnelling 2/2020
Publication year - 2020
Publication title -
geomechanics and tunnelling
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.317
H-Index - 18
eISSN - 1865-7389
pISSN - 1865-7362
DOI - 10.1002/geot.202070201
Subject(s) - geomechanics , geotechnical engineering , geology , excavator , quantum tunnelling , settlement (finance) , engineering , section (typography) , mining engineering , civil engineering , materials science , optoelectronics , world wide web , computer science , advertising , business , payment
The 2.9 Tm long twin‐tube Oberau Tunnel is the central element of the 4.2 km long Oberau bypass. 80 % of the tunnel was excavated by drill and blast in hard rock and 20 % by hydraulic excavator in the soil crossing the Gießenbach valley. In the soft ground section, which is susceptible to settlement, the works were carried out under the protection of pre‐support in the form of an umbrella of AT‐Tubespiles with lengths of 6 m (see page 249).