Investigation the Interaction of Tunnel Structure and Soil in Encountering Earthquake

Authors

  • Mehran Biglari Esfahani
  • Mehdi Zamani
  • Arash Mohammadi Farsani

DOI:

https://doi.org/10.24200/jrset.vol7iss3pp13-17

Abstract

Importance of subterranean structures in no secret to anyone and tunnels are one of the important factors indicating development of countries which are employed for various applications including transportation, water and waste water conveyance and also as a reservoir of various materials, urban subways and …. Established for water providing with the central salt desert, Golah water conveyance tunnel in the length of 10km has been bored employing the full section boring device and it cover is segmental. Tunnel performance will continue perfectly provided that its coating segment can show strength and stability all during their life span and remain in the allowable modifications. Tunnel structure is influenced by the forces resulting from creep and there is a crushed zone between the stony and coating regions. This model has been studied for the MDL and MCL danger levels and a time history analysis has been done to study the tunnel behavior. Intended responses include maximum tunnel diameter in each zone and plastic strain of the concrete as well as damage parameter proportional to the plastic strain. Obtained results revealed that in the second and third zones structure segments with a thickness of 25cm have been modified beyond the maximum limit and fail and that this structure has suffered unrepeatable damage at the MDL danger level and that the highest damages were relevant to the third zone.

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Published

2020-09-29

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Section

Articles