Pile- Tunnel Interaction in Subway Tunnels under Seismic Loads

Authors

1 Faculty of Civil Engineering, Malayer University, Malayer, Iran

2 School of Civil Engineering, K.N. Toosi University of Technology, Tehran

Abstract

Developing transportation system in populated cities needs to construct subsurface infrastructures, such as tunnels. With a close attention to densely surface structured urban environments, it is most likely that tunnels would inevitably cross near of adjacent structures. It should be considered, whether the settlement induced by tunneling are in allowable range or not. Several factors may affect the magnitude of ground movement due to tunneling and consequently the tunnel- structure interaction, such as ground geotechnical properties, adjacent structure stiffness and relative position of structures and tunnels, and tunnel construction parameters.
When pile foundations are exposed to intense dynamic transverse loads during earthquakes, soil- structure interaction (SSI) plays an important role in allocating the response of pile foundations to lateral excitation. The numerical investigation with analysis subway tunnels and deep foundation interaction behavior under seismic loads by the finite element method was carried out.

Keywords

References

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Journal of Civil and Environmental Engineering
Volume 51.3, Issue 104 - Serial Number 104
Autumn 2021
October 2021
Pages 149-157

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