Numerical investigation of the parameters influencing site effects
DOI:
https://doi.org/10.61186/JCER.7.2.10Keywords:
Site Effect , PGA , Frequency Content , Soil Layering , Epicentral DistanceAbstract
One of the most important topics in geotechnical earthquake engineering is the examination of site effects. This phenomenon alters the characteristics of seismic waves, leading to amplified vibrations and consequently increasing financial and human losses. Today, various methods exist for assessing site effects, among which numerical methods are among the most widely used due to their reasonable costs, reduced time, and high accuracy. In this research, a problem was subjected to the effects of three different earthquakes (Bam, Naghan, and Tabas). By comparing the results of each earthquake, the site effects were identified in terms of changes in peak gorund acceleration (PGA), frequency content, and shaking duration. Additionally, to investigate the effects of soil layering, the position of the layers was altered, revealing significant impacts of layer changes on seismic wave characteristics. Finally, to assess the effect of earthquake source type, one earthquake was evaluated at two different stations (near/far field). Results indicated a significant influence of the epicentral distance on the amplification and attenuation of waves.
References
Maass, Regina, Ka Lok Li, and Christopher J. Bean. “Improving passive reflection seismic imaging in complex geological settings through site effect reduction: Application to Krafla volcano, Iceland.” Geophysical Journal International (2025): ggaf072. DOI: https://doi.org/10.1093/gji/ggaf072.
Choudhary, Romani, et al. “A transfer learning-based ground motion model for Western Himalayas.” Acta Geophysica (2025): 1–24. DOI: https://doi.org/10.1007/s11600-025-01000-3.
Zaoui, Mohammed Akram Ismail, Boumédiène Derras, and Julie Régnier. “Impact of several site-condition proxies and ground-motion intensity measures on the spectral amplification factor using neuro-fuzzy approach: An example on the KiK-Net dataset.” Natural Hazards (2025): 1–30. DOI: https://doi.org/10.1007/s11069-025-07151-0.
Pilz, Marco, Fabrice Cotton, and Chuanbin Zhu. “Site-response high-frequency frontiers and the added value of site-specific earthquake record-based measurements of velocity and attenuation.” Earthquake Spectra (2025): 87552930241311312. DOI: https://doi.org/10.1177/87552930241311312.
Kuncar, Felipe, et al. “Methods to account for shallow site effects in hybrid broadband ground-motion simulations.” Earthquake Spectra (2025): 87552930241301059. DOI: https://doi.org/10.1177/87552930241301059.
Uyanık, O., et al. “Seismic microzonation and geotechnical modeling studies considering local site effects for İnegöl Plain (Bursa‐Turkey).” Earth and Space Science 11.11 (2024): e2023EA003460. DOI: https://doi.org/10.1029/2023EA003460.
Pavlenko, Olga V. “Methods for Calculation of Ground Response During Strong Earthquakes.” In Seismic Waves in Soil Layers: Soil Behaviour During Recent Strong Earthquakes, Cham: Springer Nature Switzerland, 2024. 51–94. DOI: https://doi.org/10.1007/978-3-031-43171-9_3.
Tao, Zhengru, et al. “Regional study of site effects on the high-frequency spectral-decay parameter.” Soil Dynamics and Earthquake Engineering 187 (2024): 109030. DOI: https://doi.org/10.1016/j.soildyn.2024.109030.
Kakhki, Mohsen Kazemnia, et al. “Directional variations of site response in a landslide area using ambient noise analysis via Nakamura’s and polarization-based method.” Soil Dynamics and Earthquake Engineering 141 (2021): 106492. DOI: https://doi.org/10.1016/j.soildyn.2020.106492.
Rezaei, Sadegh, Issa Shooshpasha, and Hamed Rezaei. “Evaluation of ground dynamic characteristics using ambient noise measurements in a landslide area.” Bulletin of Engineering Geology and the Environment 79.4 (2020): 1749–1763. DOI: https://doi.org/10.1007/s10064-019-01614-3.
Choobbasti, Asskar Janalizadeh, et al. “Evaluation of site response characteristic using nonlinear method (Case study: Babol, Iran).” Frontiers of Structural and Civil Engineering 8 (2014): 69–82. DOI: https://doi.org/10.1007/s11709-014-0256-7.
Rezaei, Sadegh, and Ali Hasanzadeh. “The site effect investigation using nonlinear and Iranian seismic code methods in Babol city.” Magazine of Civil Engineering 110.2 (2022): 11008. DOI: https://doi.org/10.34910/MCE.110.8.
Kramer, Steven L., and Jonathan P. Stewart. Geotechnical Earthquake Engineering. CRC Press, 2024.
Kavand, Ali, et al. “Local Site Effects on the Damage Distribution during the 2003 Bam Earthquake (Southeastern Iran) and Its Implementation in Preparation of Earthquake Design Spectra for the City of Bam.” Iranian Journal of Science and Technology, Transactions of Civil Engineering (2024): 1–21. DOI: https://doi.org/10.1007/s40996-024-01526-z.
Bowles, Joseph E., and Yingzhong Guo. Foundation Analysis and Design. Vol. 5. New York: McGraw-Hill, 1996.
Budhu, Muniram. Soil Mechanics and Foundations. John Wiley and Sons, 2010.
Arman, Ara, et al. Geotechnical and Foundation Engineering Module 1: Subsurface Investigations. No. FHWA-HI-97-021, 1997.
Kwasniewski, M., and P. Rodriguez-Oitaben. “Study on the dilatancy angle of rocks in the pre-failure domain.” ISRM Congress. ISRM, 2011.
Ameratunga, Jay, Nagaratnam Sivakugan, and Braja M. Das. Correlations of Soil and Rock Properties in Geotechnical Engineering. 2016.
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