Three-dimensional analysis of tunnel intersections for a train tunnel under Stockholm
2006 (English)In: North American Tunneling: proceedings of the North American Tunneling 2006 Conference, 10-15 June 2006, Chicago, USA / [ed] Levent Ozdemir, London: Taylor and Francis Group , 2006Conference paper (Refereed)
The Citybanan commuter train tunnel will comprise a 6 km long, double-track train tunnel to be constructed in rock under Stockholm City. In this paper, analysis of the intersections between the planned train tunnel and so-called "energy tunnels" is described. The objective of this analysis was twofold: (i) to predict deformations and stability of the energy tunnels caused by excavation of the train tunnel, and (ii) to determine required rock reinforcement for the train tunnel. Analysis was conducted primarily using the three-dimensional finite difference program FLAC3[). The analysis results showed that only minor deformations can be expected in the energy tunnels due to the excavation of the train tunnel, and that the overall stability of the tunnels was satisfactory. Furthermore, the results could be used to confirm a proposed rock reinforcement scheme for the train tunnels, thus securing the stability of the load-bearing structure for the rock tunnel.
Place, publisher, year, edition, pages
London: Taylor and Francis Group , 2006.
Research subject Mining and Rock Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-39583Local ID: e6649a60-7282-11dc-86ab-000ea68e967bISBN: 9780415401289OAI: oai:DiVA.org:ltu-39583DiVA: diva2:1013097
North American Tunneling Conference : 15/06/2006 - 16/06/2006
Godkänd; 2006; 20071004 (davsai)2016-10-032016-10-03Bibliographically approved