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http://dx.doi.org/10.7843/kgs.2008.24.1.71

Time-dependent Deformation Charateristics of Geogrid Using Wide Width Tensile Test  

Yoo, Chung-Sik (Dept. of Civil & Environ. Engrg., Sungkyunkwan Univ.)
Jeon, Han-Yong (Dept. of Nano-Systems Engrg., Inha Univ.)
Kim, Sun-Bin (Dept. of Civil & Environ. Engrg., Sungkyunkwan Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.24, no.1, 2008 , pp. 71-80 More about this Journal
Abstract
This paper presents the reusults of wide width tensile tests under sustained and cyclic loads with vairous loading rate on geogrids. A seires of modified wide width tensile tests were conducted to investigate the effect of tensile strain rate on the deformation behavior of the geogrids. In addition, residual deformation characteristics of a geogrid under sustained or cyclic tests were also investigated. The results indicated that the residual deformation of a geogrid is strongly related to the viscous behavior of the geogrid, and the residual deformation can be well described by a hyperbolic curve. Also revealed was that residual deformation of a geogrid when subject to sustained or cyclic load should be described with the framework of viscous behavior.
Keywords
Cyclic loading; Geosynthetics; Geosynthetic-reinforced retaining wall; Sustained loading; Viscous deformation; Wide width tensile test;
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