Interface Friction between Glass Fibre Reinforced Polymer and Gravel Soil

Abstract:

In soil-structure interaction problems, the frictional resistance between soil and structure is very important to have an appropriate system analysis. It includes retaining walls, deep foundations, soil samplers, soil and geo-membrane interface strength, and the stability of mechanically stabilized structures. Fibre Reinforced Polymer (FRP) is a synthetic material and can be effectively used for strengthening of soils and substructures, and hence it is important to study the interface friction between these FRP sheets with soil. This study will provide some insight knowledge regarding the interfacial friction between gravel soil with glass fibre reinforced polymer. It will be beneficial to the researchers and practicing engineers working in soil-structure interaction problems. The parameters varied in this investigation are surface roughness, orientation of fibre and normal stress (0.05 N/mm² to 0.20 N/mm²). Experimental results show that surface roughness of specimens and fibre orientation was significantly changes the interface friction angle. Shear strength at the interface increases with increase in normal stress and surface roughness. Key words: Direct shear test, gravel soil, internal friction angle, interface friction angle, GFRP.

• Periodical: Advanced Materials Research (Volumes 984-985)
• Pages: 707-710
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.984-985.707
• Online since: July 2014
• Authors: V. Jeyanthi Vineetha*, K. Ganesan
• Keywords: Direct Shear Test, Glass Fiber Reinforced Polymer (GFRP), Gravel Soil, Interface Friction Angle, Internal Friction Angle

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