MOBILIZATION OF SOIL-GEOFABRIC INTERFACE FRICTION ---PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON THEORY AND PRACTICE OF EARTH REINFORCEMENT, FUKUOKA, KYUSHU, JAPAN, 5-7 OCTOBER 1988

The objective of this study was to investigate the frictional properties of the soil-geofabric system. Five different types of woven and non woven geofabrics were used with both cohesive and non-cohesive soils. A one-faced test method was employed using a large shearbox. Shearing was applied by pushing the upper box over the geofabric fixed to the larger lower box. Horizontal shear loads were applied with a variable speed electronic motor. Vertical confining loads were imposed through a loading frame and a double lever system. Measurements were made of the horizontal and vertical displacements, and of the friction force exerted in the system during shearing. The friction angle and cohesion component for each type of geofabric were also obtained. A conventional standard shear testing apparatus of 6 cm in diameter and 2 cm in thickness was also used to estimate the frictional properties of the sand and the cohesive soil. Results indicated that the mobilized friction parameters of fabric were usually lower than those of the soil itself. They were affected by the surface texture and the thickness of the fabrics, and by the type, density and moisture content of the soils. For the covering abstract of the symposium see IRRD 818063.

  • Availability:
  • Corporate Authors:

    AA Balkema

    P.O. Box 1675
    Rotterdam,   Netherlands  BR-3000
  • Authors:
    • MAKIUCHI, K
    • Miyamori, T
  • Publication Date: 1988

Language

  • English

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Filing Info

  • Accession Number: 00486992
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 90-6191-820-0
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1989 12:00AM