CUED Publications database

Seismic analyses of shallow tunnels by dynamic centrifuge tests and finite elements

Bilotta, E and Lanzano, G and Russo, G and Silvestri, F and Madabhushi, G (2009) Seismic analyses of shallow tunnels by dynamic centrifuge tests and finite elements. Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering, 1. pp. 474-477.

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Abstract

The increments of internal forces induced in a tunnel lining during earthquakes can be assessed with several procedures at different levels of complexity. However, the substantial lack of well-documented case histories still represents a difficulty in order to validate any of the methods proposed in literature. To bridge this gap, centrifuge model tests were carried out on a circular aluminium tunnel located at two different depths in dense and loose dry sand. Each model has been instrumented for measuring soil motion and internal loads in the lining and tested under several dynamic input signals. The tests performed represented an experimental benchmark to calibrate dynamic analyses with different approaches to account for soil-tunnel kinematic interaction. © 2009 IOS Press.

Item Type: Article
Uncontrolled Keywords: Centrifuge Earthquake Tunnel
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:08
Last Modified: 08 Dec 2014 02:29
DOI: 10.3233/978-1-60750-031-5-474