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Shear wave velocity profiling by inverse analysis of array microtremors for two cities in Iran: conventional derivative-based versus genetic algorithm inversion methods

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Listed:
  • S. Mohammad Sadegh Sahraeian

    (Shiraz University of Technology)

  • Ali Kavand

    (University of Tehran)

  • Abbas Ghalandarzadeh

    (University of Tehran)

Abstract

GA-based and conventional derivative-based inversion methods were employed to determine Vs profile of subsurface soil layers from array microtremors for two cities in Iran. The applied methods were verified against geotechnical and geophysical data. The results obtained by both GA-based and conventional inversions were in acceptable agreement with results of other Vs profiling techniques. However, the variability of obtained Vs data was smaller at deeper depths indicating more reliability of predictions. Comparison between seismic ground response based on Vs profiles of different methods showed that both GA-based and conventional inversion methods agree more with the seismic downhole method than the seismic refraction technique.

Suggested Citation

  • S. Mohammad Sadegh Sahraeian & Ali Kavand & Abbas Ghalandarzadeh, 2020. "Shear wave velocity profiling by inverse analysis of array microtremors for two cities in Iran: conventional derivative-based versus genetic algorithm inversion methods," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 102(1), pages 335-363, May.
    • Handle: RePEc:spr:nathaz:v:102:y:2020:i:1:d:10.1007_s11069-020-03929-6
    DOI: 10.1007/s11069-020-03929-6
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    References listed on IDEAS

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    1. Eren Pamuk & Özkan Cevdet Özdağ & Aykut Tunçel & Şenol Özyalın & Mustafa Akgün, 2018. "Local site effects evaluation for Aliağa/İzmir using HVSR (Nakamura technique) and MASW methods," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 90(2), pages 887-899, January.
    2. Ali Shafiee & Mohsen Kamalian & Mohammad Jafari & Hossein Hamzehloo, 2011. "Ground motion studies for microzonation in Iran," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 59(1), pages 481-505, October.
    3. A. P. Singh & Abhijitsinh Parmar & Sumer Chopra, 2017. "Microtremor study for evaluating the site response characteristics in the Surat City of western India," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 89(3), pages 1145-1166, December.
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