Articles | Volume 12, issue 4
Nat. Hazards Earth Syst. Sci., 12, 1151–1157, 2012
https://doi.org/10.5194/nhess-12-1151-2012
Nat. Hazards Earth Syst. Sci., 12, 1151–1157, 2012
https://doi.org/10.5194/nhess-12-1151-2012

Research article 24 Apr 2012

Research article | 24 Apr 2012

Deconvolution effect of near-fault earthquake ground motions on stochastic dynamic response of tunnel-soil deposit interaction systems

K. Hacıefendioğlu K. Hacıefendioğlu
  • Ondokuz Mayıs University, Department of Civil Engineering, 55139 Samsun, Turkey

Abstract. The deconvolution effect of the near-fault earthquake ground motions on the stochastic dynamic response of tunnel-soil deposit interaction systems are investigated by using the finite element method. Two different earthquake input mechanisms are used to consider the deconvolution effects in the analyses: the standard rigid-base input and the deconvolved-base-rock input model. The Bolu tunnel in Turkey is chosen as a numerical example. As near-fault ground motions, 1999 Kocaeli earthquake ground motion is selected. The interface finite elements are used between tunnel and soil deposit. The mean of maximum values of quasi-static, dynamic and total responses obtained from the two input models are compared with each other.

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