Impact of seismic design on tunnels in rock – Case histories

The tunnel industry has considered that tunnels, especially tunnels in rock, are naturally resistant to earthquake action, including faulting, shaking, deflection and ground failure. As the number of case histories of tunnels subject to earthquake action has increased, the industry has started to re...

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Main Author: Carlos A. Jaramillo
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2017-06-01
Series:Underground Space
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2467967417300053
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author Carlos A. Jaramillo
author_facet Carlos A. Jaramillo
author_sort Carlos A. Jaramillo
collection DOAJ
description The tunnel industry has considered that tunnels, especially tunnels in rock, are naturally resistant to earthquake action, including faulting, shaking, deflection and ground failure. As the number of case histories of tunnels subject to earthquake action has increased, the industry has started to recognize that, although tunnels in rock have good resistance against earthquakes generating peak ground accelerations (PGA) lower than 0.5 g, it is important to include the dynamic forces and displacements generated by seismic ground motions in the design process to obtain a more reliable design. These additional earthquake forces impact the final design, potentially requiring changes to the ground support and additional reinforcement of the concrete lining, as illustrated by case histories presented in this paper.
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spelling doaj.art-249cce2330a94eacb4357a8a873399622023-09-03T03:06:17ZengKeAi Communications Co., Ltd.Underground Space2467-96742017-06-012210611410.1016/j.undsp.2017.03.004Impact of seismic design on tunnels in rock – Case historiesCarlos A. JaramilloThe tunnel industry has considered that tunnels, especially tunnels in rock, are naturally resistant to earthquake action, including faulting, shaking, deflection and ground failure. As the number of case histories of tunnels subject to earthquake action has increased, the industry has started to recognize that, although tunnels in rock have good resistance against earthquakes generating peak ground accelerations (PGA) lower than 0.5 g, it is important to include the dynamic forces and displacements generated by seismic ground motions in the design process to obtain a more reliable design. These additional earthquake forces impact the final design, potentially requiring changes to the ground support and additional reinforcement of the concrete lining, as illustrated by case histories presented in this paper.http://www.sciencedirect.com/science/article/pii/S2467967417300053TunnelTunnelsSeismic designEarthquake impactTunnel liningGround support
spellingShingle Carlos A. Jaramillo
Impact of seismic design on tunnels in rock – Case histories
Underground Space
Tunnel
Tunnels
Seismic design
Earthquake impact
Tunnel lining
Ground support
title Impact of seismic design on tunnels in rock – Case histories
title_full Impact of seismic design on tunnels in rock – Case histories
title_fullStr Impact of seismic design on tunnels in rock – Case histories
title_full_unstemmed Impact of seismic design on tunnels in rock – Case histories
title_short Impact of seismic design on tunnels in rock – Case histories
title_sort impact of seismic design on tunnels in rock case histories
topic Tunnel
Tunnels
Seismic design
Earthquake impact
Tunnel lining
Ground support
url http://www.sciencedirect.com/science/article/pii/S2467967417300053
work_keys_str_mv AT carlosajaramillo impactofseismicdesignontunnelsinrockcasehistories