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A platform for research: civil engineering, architecture and urbanism
“Effect of Seismic Excitation on Underground Tunnel”
All major urban areas throughout the world have underground metro systems for their mass rapid transit systems. To safeguard human life and enhance service efficiency, it is crucial to understand how underground tunnels are affected by earthquakes. For their seismic analysis, choosing an earthquake ground motion that is maximum and realistic which are crucial. In this essay, the case history of the subterranean Surat metro tunnels is examined, along with how they responded to the 2001 Bhuj earthquake in Gujarat. The time-based history of the earthquake used for analysis is done matches the projected earthquake at that specific site, so that a realistic reaction of the tunnels is produced. Therefore, the Surat zone's response spectra companionable time history was produced initially. The finite element program MIDAS GTS nx has been used to simulate the tunnel-soil system. Analysis reveals forces in RC liners and subsidence in soil-tunnel systems are larger in deep tunnels as compared to shallow tunnels. Even the analysis expresses the actual earthquakes for another site may overvalue or undervalue the response at the target site. The free-field ground motions are affected by the earthquake's maximum response at the ground surface, which has been studied.
“Effect of Seismic Excitation on Underground Tunnel”
All major urban areas throughout the world have underground metro systems for their mass rapid transit systems. To safeguard human life and enhance service efficiency, it is crucial to understand how underground tunnels are affected by earthquakes. For their seismic analysis, choosing an earthquake ground motion that is maximum and realistic which are crucial. In this essay, the case history of the subterranean Surat metro tunnels is examined, along with how they responded to the 2001 Bhuj earthquake in Gujarat. The time-based history of the earthquake used for analysis is done matches the projected earthquake at that specific site, so that a realistic reaction of the tunnels is produced. Therefore, the Surat zone's response spectra companionable time history was produced initially. The finite element program MIDAS GTS nx has been used to simulate the tunnel-soil system. Analysis reveals forces in RC liners and subsidence in soil-tunnel systems are larger in deep tunnels as compared to shallow tunnels. Even the analysis expresses the actual earthquakes for another site may overvalue or undervalue the response at the target site. The free-field ground motions are affected by the earthquake's maximum response at the ground surface, which has been studied.
“Effect of Seismic Excitation on Underground Tunnel”
Lect.Notes Mechanical Engineering
Sassi, Sadok (editor) / Biswas, Paritosh (editor) / Naprstek, Jiri (editor) / Katariwala, Avni (author) / Desai, Atul (author) / Shah, Harshal (author)
International Conference on Vibration Problems ; 2023 ; Doha, Qatar
Proceedings of the 15th International Conference on Vibration Problems ; Chapter: 41 ; 459-470
2024-03-20
12 pages
Article/Chapter (Book)
Electronic Resource
English
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