Bending response of pile foundations during partial liquefaction

Pradeep Kumar Dammala, Mehdi Rouholamin, Georgios Nikitas, Subhamoy Bhattacharya, Adapa Murali Krishna, Piyush Mohanty

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Earthquakes often cause sudden increase of pore pressures in the fine grained soils leading to liquefaction. Pile foundations in liquefiable soils need to be checked for the additional bending moments caused by the liquefaction induced stresses to avoid the plastic hinge formation. Recent studies reveal that the bending moments in the pile foundation are significantly higher during the partial liquefaction (excess pore water pressure ratio <1.0) than at the fully liquefied condition. This study proposes a method to estimate the bending moments of the pile during partial liquefaction. Advanced multi-stage cyclic triaxial tests are conducted to understand the partial liquefaction behavior of the sandy soils. The test results are then utilized in obtaining the lateral soil springs to develop a numerical model of pile foundation in partially liquefiable soils. The results obtained from the numerical model match well with the shake table results manifesting the efficacy of the proposed method.
Original languageEnglish
Title of host publicationProceedings of the Indian Geotechnical Conference 2017
PublisherIndian Geotechnical Society
Number of pages4
Publication statusPublished - 16 Dec 2017
EventIndian Geotechnical Conference 2017 - Guwahati, India
Duration: 14 Dec 201716 Dec 2017


ConferenceIndian Geotechnical Conference 2017
Internet address


  • pile foundation
  • partial liquefaction
  • transient bending moments
  • P-Y curves


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