Three-Dimensional Simulations of Strong Ground Motion in the Shidian Basin

Abstract:

Seismic response of the Shidian basin to moderate scenario earthquake is investigated considering 3D basin model incorporated with real topography by using the spectral-element method and parallel computing technique. The wave propagation process, the generation of surface wave, and the impact of soil deposits velocity to the basin-induced surface wave are studied in this paper. The results show that the amplification behavior of the basin is the interactions of basin geometry and low velocity soil deposits. First, locally small hollows in the basin are apt to trap seismic waves and produce much stronger ground motion, basin edge and areas with deep sediments are also characterized with large amplification. Then, basin with softer soil deposits produces stronger surface waves with lower propagation velocity and higher mode.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 1447-1452
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.1447
• Online since: January 2014
• Authors: Yan Yan Yu, Qi Fang Liu
• Keywords: Amplification Effect, Shidian Basin, Spectral Element Method, Surface Wave, Three-Dimensional

References

[1] D. J. Wald, R. W. Graves: Bull. Seismol. Soc. Am., Vol. 88 (1998), p.337.

[2] K. B. Olsen: Bull. Seismol. Soc. Am., Vol. 90 (2000), p. S77.

[3] D. Komatitsch, Q.Y. Liu and J. Tromp, et al: Bull. Seismol. Soc. Am., Vol. 94 (2004), p.187.

[4] S. J. Lee, H. W. Chen and B. S. Huang: Bull. Seismol. Soc. Am., Vol. 98 (2008), p.1229.

[5] A. Pitarka, K. Irikura and T. Iwata, et al: Bull. Seismol. Soc. Am., Vol. 88 (1998), p.428.

[6] Q. F. Liu, X. Q. Li and P. S. Sun: Earthquake Engineering and Engineering Vibration, Vol. 33 (2013), p.88. (In Chinese).

[7] C. Y. Wang, W. D. Mooney and X. L. Wang, et al: ACTA SEISMOLOGICA SINICA, Vol. 24 (2002), p.1. (In Chinese).

[8] D. Komatitsch, J. P. Vilotte: Bull. Seism. Soc. Am, Vol. 88 (1998), p.368.

[9] D. Komatitsch, J. Tromp: Geophys. J. Int, Vol. 139 (1999), p.806.

[10] D. Komatitsch, C. Barnes and J. Tromp: Geophysics, Vol. 65 (2000), p.1251.