The effect of increasing the angle of earthquake on tunnel in saturated ambience on surface tructures subjected to far field earthquake
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICGUEE02_022
تاریخ نمایه سازی: 30 بهمن 1394
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. In addition the effect of increasing the angle of incidence of earthquake was determined in this paper. The obtained results of increasing the angle of incidence of earthquake on tunnel in the saturated ambience on surface structures demonstrate the structures in vicinity of tunnels were markedly damaged due to far field earthquakes in the saturated conditions and resonance phenomenon also was appeared.
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Authors
Amir Rabie far
1. M.SC of geotechnical engineering, Researcher of ETKA Organization Research & Innovation
Hamidreza Vosoughifar
2. Assistant professor, Department of civil engineering, University of Islamic azad, South tehran
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