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Soil liquefaction is a major concern for structures constructed on sandy soils. Soil liquefaction is such a phenomenon to be illustrated in a way that simplifies understanding of their mechanics and the manner in which they contribute to earthquake damage resulting in collapse of existing structures with loss of lives and properties. This paper evaluates liquefaction potential of soil (at a site in South 24 Parganas near Kolkata) by Cone Penetration Test and Standard Penetration Test. Thereafter, Cyclic resistance ratio (CRR) has been calculated from CPT and SPT parameters. An attempt has been made to study the assessment of liquefaction potential and probability of liquefaction using NovoLIQ software. Further, Deep soil software has been used for nonlinear ground response analysis to obtained pore pressure distribution at various depths. The results obtained from NovoLIQ and Deep soil software based on SPT and CPT data have been compiled. In addition to this, change of pore pressure during liquefaction has also been studied to supplement the variation of liquefaction potential at different depths.

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Assessment of Liquefaction Potential by Different Approaches at a Site in South 24 Parganas Near Kolkata

  • 会议论文

  • 发表日期：

    2025年

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  • Abhipriya Halder,
  • Kaustav Das,
  • Abhishek Mallick,
  • Kaushik Bandyopadhyay,
  • Narayan Roy,
  • Sibapriya Mukherjee

摘要

Soil liquefaction is a major concern for structures constructed on sandy soils. Soil liquefaction is such a phenomenon to be illustrated in a way that simplifies understanding of their mechanics and the manner in which they contribute to earthquake damage resulting in collapse of existing structures with loss of lives and properties. This paper evaluates liquefaction potential of soil (at a site in South 24 Parganas near Kolkata) by Cone Penetration Test and Standard Penetration Test. Thereafter, Cyclic resistance ratio (CRR) has been calculated from CPT and SPT parameters. An attempt has been made to study the assessment of liquefaction potential and probability of liquefaction using NovoLIQ software. Further, Deep soil software has been used for nonlinear ground response analysis to obtained pore pressure distribution at various depths. The results obtained from NovoLIQ and Deep soil software based on SPT and CPT data have been compiled. In addition to this, change of pore pressure during liquefaction has also been studied to supplement the variation of liquefaction potential at different depths.