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Keywords: rock cover
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Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-038
... transportation Finland Johansson rock cover in-situ rock stress station cavern Abstract The City Rail Loop project is a planned urban railway line for commuter trains under the Helsinki city-centre. The triple tunnels run under the very densely-built city-center peninsula. Three underground stations...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-025
... of a single tunnel is 13... 15 m and height 9,2 m (Figures 1 and 2). The thickness of rock cover varies from 8 to 27 m (Figure 3). The total excavated volume for the two tunnel tubes is 650.000 m 3 . The project was realised as an Alliance scheme between the key organisations, and the design work started...