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Capillary Effect on Critical Length of Force Chains in Partially Saturated Granular Materials Within the Pendular Regime

  • Peijun GuoEmail author
Conference paper
  • 1.6k Downloads
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

This paper investigates the influence of capillary interaction on critical length of grain columns in partially saturated granular materials at pendular state. When relative rotation between a pair of elliptical particles (2D disks) takes place, the liquid meniscus between the particles is distorted and generates unbalanced capillary forces around the contact, which further induces capillary torque. Both the capillary force and capillary torque have some influence on the characteristic length of grain column or the force chain. The findings imply that the capillary interaction may have some influence on shear band thickness. For engineering soils, however, such effect may be undermined owing to the relative low level of capillary stress in partially saturated granular soils within the pendular regime.

Keywords

Capillary Force Liquid Bridge Rolling Resistance Force Chain Elliptical Cylinder 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

Funding provided by the Natural Sciences and Engineering Research Council of Canada is gratefully acknowledged.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Department of Civil EngineeringMcMaster UniversityHamiltonCanada

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