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Figure 21.13 West Coast Line (Sweden) with Hallandsas tunnel (Lundman et al. 2009)
Figure 21.14 Hallandsas tunnel, longitudinal section (Lundman et al. 2009)
21.2.2 Ground and Groundwater Conditions
The rock mass predominantly consists of fine-grained gneiss with amphibolite and dol-
erite intrusions. To a minor degree granite and diabase were encountered. The intact
rock strength reaches values of up to 250 MPa.
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Rock Mechanics Based on an Anisotropic Jointed Rock Model
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