• A simulation of earthquake induced undrained pore pressure changes with bearing on some soil liquefaction observations following the 2001 Bhuj earthquake

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      https://www.ias.ac.in/article/fulltext/jess/112/03/0471-0477

    • Keywords

       

      Undrained poroelastic effect; soil liquefaction; Bhuj earthquake

    • Abstract

       

      The Bhuj earthquake of January 26th, 2001, induced wide spread liquefaction within the Kachch peninsula. It has been pointed out that inundation due to soil liquefaction was short lived in some parts than in others in the affected region. Several geological, seismological and hydrological factors would have cumulatively contributed to these observed changes.

      We simulate in this article, undrained or short-term change in pore pressure in a poroelastic half space, in response to a simplified model of the Bhuj earthquake source. We find that the regions of relatively shorter lived inundation due to soil liquefaction may fall in the region where pore pressure responsible for soil liquefaction attributable to strong ground shaking was counteracted by pore pressure changes due to undrained poroelastic effect and vice versa.

    • Author Affiliations

       

      Irene Sarkar1 Ramesh Chander2

      1. Department of Earth Sciences, Indian Institute of Technology, Roorkee - 247 667, India
      2. House no. 290, Sector 4, Mansa Devi Complex, Panchkula - 134 109, India
    • Dates

       
  • Journal of Earth System Science | News

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