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Seismic effect of tunnel in the saturated ambience on surface structures subjected to far field earthquake

Credit to Download: 1 | Page Numbers 9 | Abstract Views: 366
Year: 2014
COI code: ICSAU02_0281
Paper Language: English

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Authors Seismic effect of tunnel in the saturated ambience on surface structures subjected to far field earthquake

Amir. Rabie far - M.SC. of geotechnical engineering, University of Islamic azad, Science and research hamedan branch
  Hamidreza. Vosoughifar - Assistant professor, Department of civil engineering, University of Islamic azad, South tehran branch

Abstract:

The experiences of the past earthquakes have been indicated that the surface structures were influenced by seismic waves according to the distance from fault focus after tunnel excavation. So the effects of near and far field earthquakes on the surface structures should be noted while underground tunnels are excavated. In this attempt, saturated conditions are considered surrounding the excavated tunnel and the finite element modeling were performed using Coulomb's failure equation. The nonlinear time-history analysis was undertaken via near and far field earthquakes and Rayleigh damping coefficients . The obtained results demonstrate the structures in vicinity of tunnels were markedly damaged due to near field earthquakes in the saturated conditions and resonance phenomenon also was appeared.Furthermore statistical results show that surface structures in the saturated conditions have effected near field earthquakes in comparison with far field earthquakes which there is a significant difference between the obtained numerical results (p-value < 0.05).

Keywords:

Earthquake, Tunnel, Saturated ambience

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COI code: ICSAU02_0281

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Rabie far, Amir. & Hamidreza. Vosoughifar, 2014, Seismic effect of tunnel in the saturated ambience on surface structures subjected to far field earthquake, 2nd international congress of structure, architecture and urban development, تبريز, دبيرخانه دائمي كنگره بين المللي سازه ، معماري و توسعه شهري, https://www.civilica.com/Paper-ICSAU02-ICSAU02_0281.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Rabie far, Amir. & Hamidreza. Vosoughifar, 2014)
Second and more: (Rabie far & Vosoughifar, 2014)
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