Articles | Volume 21, issue 2
Nat. Hazards Earth Syst. Sci., 21, 577–585, 2021
https://doi.org/10.5194/nhess-21-577-2021
Nat. Hazards Earth Syst. Sci., 21, 577–585, 2021
https://doi.org/10.5194/nhess-21-577-2021

Research article 11 Feb 2021

Research article | 11 Feb 2021

Study on the influence of the seafloor soft soil layer on seismic ground motion

Jingyan Lan et al.

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Cited articles

Bardet, J. P. and Tobita, T.: NERA, A computer program for nonlinear earthquake site response analyses of layered soil deposits, Department of Civil Engineering, University of Southern California, 2001. 
Bardet, J. P., Ichii, K., and Lin, C. H.: EERA, A computer program for equivalent-linear earthquake site response analyses of layered soil deposits, Department of Civil Engineering, University of Southern California, 2000. 
Boore, D. M. and Smith, C. E.: Analysis of earthquake recordings obtained from the Seafloor Earthquake Measurement System (SEMS) instruments deployed off the coast of southern California, B. Seismol. Soc. Am., 89, 260–274, 1999. 
Celebi, M.: Topographical and geological amplification: case studies and engineering implications, Structural Safety, 10, 199–217 https://doi.org/10.1016/0167-4730(91)90015-2, 1991. 
Chen, B.: Characteristics of Offshore Ground Motions and Seismic Response Analysis of Sea-crossing Bridges. Ph.D. Thesis, Dalian Unversity of Technology, Dalian, 2016 
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Short summary
In current marine seismic engineering research, the influence of overlying-seawater weight and soft soil on seabed ground motion is often ignored, which leads to unsafe seismic design. In this paper, four representative calculation models are constructed, and the finite-element method is used for numerical simulation analysis in order to evaluate the amplification effect of overlying seawater and the seafloor soft soil layer on ground motion.
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