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Analysis of the behaviour of an old railway tunnel due to the construction of a Lisbon Metro tunnel
| Content Provider | Scilit |
|---|---|
| Author | Lemos, J. V. Sousa, L. R. Pinto, F. |
| Copyright Year | 2020 |
| Description | The Rossio railway tunnel, built in 1890 with a masonry lining, crosses several sandy and clayey strata, limestones and basalts. Recently, a new tunnel, part of the Lisbon Metro, was executed, crossing above the old tunnel at a short distance. In this paper, the geomechanical studies performed and the construction procedure are reported. The region around the tunnel intersection was analysed with a 3D numerical model, which allowed the simulation of the sequential excavation scheme, the reinforcement and support systems, and the non-linear behaviour of the geological strata. The results of a simplified seismic analysis, performed to evaluate the influence of an earthquake in both underground structures, are also presented. Book Name: Modern Tunneling Science and Technology |
| Related Links | https://content.taylorfrancis.com/books/download?dac=C2010-0-38777-X&isbn=9781003077534&doi=10.1201/9781003077534-20&format=pdf |
| Ending Page | 722 |
| Page Count | 6 |
| Starting Page | 717 |
| DOI | 10.1201/9781003077534-20 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2020-10-07 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Modern Tunneling Science and Technology Geological Engineering Model Behaviour Railway Structures Tunnel Seismic Metro Old Lisbon Simplified |
| Content Type | Text |
| Resource Type | Chapter |
