Quantification of Shear-Induced Wear on Curved Surfaces

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by Andrew R. Fuggle, School of Civil and Environmental Engineering, Georgia Institute of Technology, 790 Atlantic Drive NW, Atlanta, GA 30332, andrew.fuggle@gatech.edu,
J. David Frost, P.E., Ph.D., Professor and Director; Georgia Tech Savannah, 210 Technology Circle, Savannah, GA 31407, david.frost@gtsav.gatech.edu,
Mehmet Iscimen, P.ENG., GeoSyntec Consultants, 1255 Roberts Blvd NW, Suite 200, Kennesaw, GA 30144, miscimen@geosyntec.com,

Document Type: Proceeding Paper

Part of: GeoCongress 2006: Geotechnical Engineering in the Information Technology Age

Abstract: Micro-tunneling and pile driving are two example applications in which the surface roughness of construction materials may be significantly altered during installation. Quantification of this change in surface roughness as a result of large displacement shear-induced wear is a necessary precursor to achieving optimum interface design. This paper describes the results of an initial experimental study that investigated the change in surface roughness of curved interfaces as a result of shear-induced wear. Even for limited shear displacements, results show quantifiable changes in surface roughness and interface strength and demonstrate the importance of considering the shear-induced wear of construction materials.

Subject Headings: Curvature | Construction materials | Hydraulic roughness | Shear strength | Soil strength | Displacement (mechanics) | Surface properties |

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