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3D Seismic Response Analysis of Shallow Foundation Resting on Sandy Soil

Author

Listed:
  • Ravinesh Kumar

    (UVCE, Bangalore University, Bangalore, India)

  • Supriya Mohanty

    (Indian Institute of Technology (BHU), Varanasi, India)

  • Chethan K

    (UVCE, Bangalore University, Bangalore, India)

Abstract

In the present study, an attempt has been made to study the response of a shallow foundation resting on medium dense sandy soil under seismic excitation. Numerical analysis of the soil-foundation system has been carried out using 3D finite element software OpenSeesPL. The effect of boundary conditions (shear beam and rigid box type) and the water table (0 m, 1 m and 2 m below the ground surface) on the response of soil-foundation system under seismic excitation have been analysed. The responses of the soil-foundation system are presented in the form of acceleration, displacement, excess pore pressure, excess pore pressure ratio and settlement variations at different locations in the soil domain. The results of the numerical analysis indicate that the peak acceleration, displacement, excess pore pressure and settlement values are found to be more in shear beam type boundary condition than that of a rigid box type boundary condition. Hence, rigid confinement and lower water table can reduce the liquefaction potential of the soil-foundation system under seismic excitation.

Suggested Citation

  • Ravinesh Kumar & Supriya Mohanty & Chethan K, 2019. "3D Seismic Response Analysis of Shallow Foundation Resting on Sandy Soil," International Journal of Geotechnical Earthquake Engineering (IJGEE), IGI Global, vol. 10(1), pages 61-76, January.
    • Handle: RePEc:igg:jgee00:v:10:y:2019:i:1:p:61-76
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    Cited by:

    1. Saif Alzabeebee, 2020. "Seismic settlement of a strip foundation resting on a dry sand," 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. 103(2), pages 2395-2425, September.

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