Transition Zone in Bearing Capacity Problem from Plasticity Method, Discrete Element Method and Laboratory Tests

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

Detail(s)

Original languageEnglish
Number of pages21
Journal / PublicationAdvances in Geosciences
Volume2
Issue number1
Publication statusPublished - 2018

Abstract

In this paper, the classical bearing capacity problem and the logspiral transition zone are re-considered from a continuum plasticity approach as well as discrete element approach. In the discrete element approach, the bearing capacity problem is considered from the elastic stage, plastic stage to the final rupture stage. It is found that there are noticeable differences in the failure mechanism between the continuum and discontinuum analyses, and the well-known logspiral transition zone is also not apparent in both the discrete element approach, plasticity approach as well as the laboratory tests. With the increase in the friction angle of soil, the transition zone is becoming more like a wedge zone than a logspiral zone as found from the present study.

Research Area(s)

  • bearing capacity, slip-line, discrete element, logspiral zone, failure mechanism