Sweden

The Hallandsas rail tunnel:
Successful first-bore breakthrough

Untertiteltext Englisch

Vortext Englisch

The rail link from Malmö to Göteborg on the west coast of Sweden is undergoing upgrading to a high-speed line, cutting travelling times between the two cities by two hours. A particular challenge is the route under the Hallandsas ridge to the south of Bastad. Initial attempts to drive this tunnel using mining methods failed as a result of the difficult geolo­gical conditions, including high water pressures and influxes, and severely fissured strata. TBM-based tunnelling was therefore specified in the new invitation-to-tender for construction of this 5.6 km long tunnel, with its 9.30 m internal...

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