کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
274484 | 505231 | 2008 | 6 صفحه PDF | دانلود رایگان |
The enhancement in the short-term interface shear strength (critical case for embankment construction) achieved by a novel geogrid that combines both reinforcement and in-plane drainage functions was studied. Marginal fill (wet gravely clay) was standard Proctor compacted to 92% of its maximum dry density and tested under consolidated-undrained conditions in the large shearbox apparatus. The interface shear resistance (τs−g) values mobilized for the novel geogrid were similar to the undrained shear strength of the surrounding soil. In contrast, the τs−g values mobilized for a conventional geogrid, which had similar physical and tensile strength properties, were only between 82% and 85% of the undrained shear strength of the soil. Overall, the undrained shear resistance mobilized along the soil–geogrid interface was between 20% and 30% greater for the novel geogrid than for the conventional geogrid.
Journal: Geotextiles and Geomembranes - Volume 26, Issue 4, August 2008, Pages 357–362