A Performance Test for Assessment of Long-Term Creep Behavior of Soil-Geosynthetic Composites. Issue 1 (1st January 1996)

• Record Type: Journal Article
• Authors: Wu, J.T.H.; Helwany, S.M.B.
• Is Part Of: Geosynthetics international. Volume 3:Issue 1(1996)
• Page Start: 107
• Page End: 124
• Publication Date: 1996-01-01
• Subjects: Reinforcement; -- Geotextile; -- Creep; -- Long-term performance test; -- Geosynthetics; -- Composite; -- Soil-geosynthetic interaction; Geosynthetics -- Periodicals; Geosynthetics; Periodicals; 624.1892
• DOI: 10.1680/gein.3.0056
• Languages: English
• ISSNs: 1072-6349

Abstract

Abstract : A simple laboratory performance test was devised for the assessment of long-term creep behavior of geosynthetic reinforcement due to soil-geosynthetic interaction. In the test, the geosynthetic reinforcement and the confining soil deformed in an interactive manner under a sustained surcharge that was applied to the soil over a long period of time. Two long-term performance tests were conducted with different confining soils: a clean sand, and a kaolin clay. The tests clearly indicate that the long-term creep deformation of the geotextile reinforcement was significantly affected by the time-dependent deformation characteristics of the confining soils. It can be misleading to evaluate the long-term creep potential of a soil-geosynthetic composite based solely on the results of geosynthetic element creep tests such as constant load strip tensile tests and, confined creep tests which do not account for time-dependent deformation of the confining soil.