Numerical analysis of fibre-reinforced granular soils

E. Ibraim*, K. Maeda

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

Laboratory experimental tests of sand reinforced with discrete random flexible fibres show that fibre reinforcement could be an effective technique for improving their strength and deformation characteristics. The behaviour of fibre reinforced sand is influenced by many factors such as density and stress level, fibre type, content and orientation. A two dimensional DEM (Distinct Element Method) biaxial compression simulation of mixtures of sand and fibres is applied to understand how randomly distributed flexible fibres generate a bond within the soil and affect the kinematics of the granular matrix. Sand particles are modelled by rigid disks with conventional contact elements in DEM. The fibre element is modelled by connecting small circular particles with a bond contact algorithm, where the strength of the bond is fairly high. The specimens have been reinforced with different fibre fractions. The effect of fibre reinforcement is discussed.

Original languageEnglish
Title of host publicationNEW HORIZONS IN EARTH REINFORCEMENT
EditorsJ Otani, Y Miyata, T Mukunoki
Place of PublicationLONDON
PublisherTaylor & Francis Group
Pages387-393
Number of pages7
ISBN (Print)978-0-415-45775-0
Publication statusPublished - 2008
Event5th International Symposium on Earth Reinforcement (IS Kyushu 07) - Fukuoka, Japan
Duration: 14 Nov 200716 Nov 2007

Publication series

NameProceedings and Monographs in Engineering, Water and Earth Sciences
PublisherTAYLOR & FRANCIS LTD

Conference

Conference5th International Symposium on Earth Reinforcement (IS Kyushu 07)
CountryJapan
Period14/11/0716/11/07

Keywords

  • DIRECT SHEAR
  • SAND
  • BEHAVIOR
  • EQUILIBRIUM

Cite this