A Hybrid Finite/Discrete Element Method for Analysis of Unpaved Roads Reinforced by Geotextiles

  • C. Athanasiu
  • N. Bergersen
Conference paper
Part of the International Centre for Mechanical Sciences book series (CISM, volume 397)


A 3-D discrete/finite element method for analysis of unpaved roads reinforced with geotextiles is presented. The foundation soil is soft, normally consolidated soil and is modelled by 3-D finite elements. The geotextile, fill and the contacts geotextile — soft soil and geotextile — fill are modelled by discrete elements. The foundation soft soil is modelled using a modified Tresca failure criterion and associated flow rule to account for stiffness and strength degradation due to cyclic traffic loading. A PC program based on the method is developed. The program consists of a pre-processor module helping the user to prepare input data and to preliminarily design the geotextile and the thickness of the fill, analysis module and a post-processor module displaying the results. The use of the method is illustrated by examples.


Soft Soil Secant Modulus Cyclic Shear Unpaved Road ASCE Journal 
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Copyright information

© Springer-Verlag Wien 1998

Authors and Affiliations

  • C. Athanasiu
    • 1
  • N. Bergersen
    • 1
  1. 1.NOTEBY AS Consulting EngineersOsloNorway

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