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Field Performance of Geosynthetics Used As Subgrade Stabilization
Geogrids and geotextiles are routinely used to stabilize weak subgrade materials. Typical applications are temporary haul roads or unpaved low-volume roads. Full-scale test sections were constructed, trafficked and monitored to compare the relative operational performance of geosynthetics used as subgrade stabilization, as well as determine which material properties are most related to performance. Test sections were constructed using twelve different geosynthetics - ten geogrids and two geotextiles. Multiple control test sections were also built to evaluate the effect that subgrade strength, base course thickness, and/or presence of the geosynthetic had on performance. Test sections were trafficked using a 45-kip, 3-axle dump truck. Various properties of the geosynthetics were evaluated to determine which properties best predicted field performance. Using longitudinal rut as the primary indicator of performance, it was determined that the strength and stiffness of the junctions and tensile strength properties in the cross-machine direction correlated well with performance in this application.
Field Performance of Geosynthetics Used As Subgrade Stabilization
Geogrids and geotextiles are routinely used to stabilize weak subgrade materials. Typical applications are temporary haul roads or unpaved low-volume roads. Full-scale test sections were constructed, trafficked and monitored to compare the relative operational performance of geosynthetics used as subgrade stabilization, as well as determine which material properties are most related to performance. Test sections were constructed using twelve different geosynthetics - ten geogrids and two geotextiles. Multiple control test sections were also built to evaluate the effect that subgrade strength, base course thickness, and/or presence of the geosynthetic had on performance. Test sections were trafficked using a 45-kip, 3-axle dump truck. Various properties of the geosynthetics were evaluated to determine which properties best predicted field performance. Using longitudinal rut as the primary indicator of performance, it was determined that the strength and stiffness of the junctions and tensile strength properties in the cross-machine direction correlated well with performance in this application.
Field Performance of Geosynthetics Used As Subgrade Stabilization
Cuelho, Eli (author) / Perkins, Steve (author)
2015
10 Seiten, Bilder, Tabellen, Quellen
Conference paper
Storage medium
English
Full-Scale Field Study of Geosynthetics Used As Subgrade Stabilization
| British Library Conference Proceedings | 2011