A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental evaluation of vulnerability for urban segmental tunnels subjected to normal surface faulting
Abstract Faulting is one type of permanent ground displacement (PGD); tunnels are at the risk of damage when they are susceptible to faulting. The present study proposes an experimental approach to create the fragility curves for shallow segmental tunnels in alluvial deposits subjected to normal surface faulting. Centrifuge testing was carried out in order to achieve this purpose. The proposed approach allows evaluation of new fragility curves considering the distinctive features of tunnel geometry and fault specifications. The comparison between the new fragility curves and the existing empirical curves was discussed as well. Compared to tunnels in rock, tunnels in alluvial deposits are more susceptible to failure because of different mechanisms of collapse into tunnel at large exerted PGD.
Highlights The present study modeled a segmental tunnel subjected to fault rupture in a centrifuge. Fragility curves were developed based on results that were obtained from tests. The experimental fragility curves were compared with empirical ones. Similarities and differences between experimental and empirical fragility curves were discussed.
Experimental evaluation of vulnerability for urban segmental tunnels subjected to normal surface faulting
Abstract Faulting is one type of permanent ground displacement (PGD); tunnels are at the risk of damage when they are susceptible to faulting. The present study proposes an experimental approach to create the fragility curves for shallow segmental tunnels in alluvial deposits subjected to normal surface faulting. Centrifuge testing was carried out in order to achieve this purpose. The proposed approach allows evaluation of new fragility curves considering the distinctive features of tunnel geometry and fault specifications. The comparison between the new fragility curves and the existing empirical curves was discussed as well. Compared to tunnels in rock, tunnels in alluvial deposits are more susceptible to failure because of different mechanisms of collapse into tunnel at large exerted PGD.
Highlights The present study modeled a segmental tunnel subjected to fault rupture in a centrifuge. Fragility curves were developed based on results that were obtained from tests. The experimental fragility curves were compared with empirical ones. Similarities and differences between experimental and empirical fragility curves were discussed.
Experimental evaluation of vulnerability for urban segmental tunnels subjected to normal surface faulting
Kiani, Majid (author) / Ghalandarzadeh, Abbas (author) / Akhlaghi, Tohid (author) / Ahmadi, Mohammad (author)
Soil Dynamics and Earthquake Engineering ; 89 ; 28-37
2016-07-18
10 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2016
| British Library Online Contents | 2016