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Physical modeling for the evaluation of the seismic behavior of square tunnels

Tsinidis, Grigorios; Heron, Charles; Pitilakis, Kyriazis; Madabhushi, Gopal

Authors

Grigorios Tsinidis

Kyriazis Pitilakis

Gopal Madabhushi



Contributors

Alper Ilki
Editor

Michael N. Fardis
Editor

Abstract

The Chapter summarizes results from dynamic centrifuge tests performed on a rectangular tunnel model embedded in dry sand. The tests were carried out at the geotechnical centrifuge facility of the University of Cambridge, within the Transnational Access Task of the SERIES Research Project (Project: TUNNELSEIS). The experimental data is presented in terms of acceleration and displacement-time histories in the soil and on the tunnel, soil surface settlements, earth pressures on the side walls of the tunnel and internal forces of the tunnel lining. The goal of the experiment is twofold: to better understand the seismic behavior of these types of structures, and to use the high quality and perfectly constrained data to validate the numerical models which are commonly used for the design of rectangular embedded structures. The interpretation of the results reveals (i) rocking response of the tunnel model, (ii) existence of residual values on the earth pressures on the side walls and on the internal forces and (iii) important influence of the tunnel on the shear wave field. These issues are not well understood and are usually not taken into account in the simplified seismic analysis methods.

Citation

Tsinidis, G., Heron, C., Pitilakis, K., & Madabhushi, G. (2014). Physical modeling for the evaluation of the seismic behavior of square tunnels. In M. N. Fardis, & A. Ilki (Eds.), Seismic evaluation and rehabilitation of structuresSpringer. doi:10.1007/978-3-319-00458-7_22

Acceptance Date Jan 1, 2014
Publication Date Jan 1, 2014
Deposit Date Jul 12, 2016
Electronic ISSN 1573-6059
Peer Reviewed Peer Reviewed
Issue 26
Series Title Geotechnical, geological and earthquake engineering
Book Title Seismic evaluation and rehabilitation of structures
ISBN 978-3-319-00457-0
DOI https://doi.org/10.1007/978-3-319-00458-7_22
Public URL http://eprints.nottingham.ac.uk/id/eprint/34908
Publisher URL http://link.springer.com/chapter/10.1007%2F978-3-319-00458-7_22
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf