Confined-Accelerated Creep Tests to Determine the Creep Reduction Factor

Zhen Zhang; Duo Yi Zhu; Teng Fei Chen; Tao Wang

doi:10.4028/www.scientific.net/AMM.539.769

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 539Confined-Accelerated Creep Tests to Determine the...

Confined-Accelerated Creep Tests to Determine the Creep Reduction Factor

Abstract:

The creep characteristics of geogrids is one of the most important factors affecting its permanent in reinforced soil structures. currently, most of the creep tests are under unconfined conditions, the results deviates significantly from the real status in the application . And conventional creep tests are time-consuming and costing.In this paper, time-temperature superposition principle of geosynthetics is used to accelerate creep and shorten test time. This paper presents a new device to perform simultaneously confined and accelerated creep tests on HDPE50 geogrid . According to the results and time-temperature superposition principle of geosynthetics,the master curves are obtained . Finally the creep reduction factor of confined and unconfined conditions is analysed in the actual project .

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Periodical:

Applied Mechanics and Materials (Volume 539)

Pages:

769-773

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.539.769

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Online since:

July 2014

Authors:

Zhen Zhang, Duo Yi Zhu, Teng Fei Chen, Tao Wang

Keywords:

Accelerated Creep Tests, Confined, Creep, Geogrids, Master Curves, Time-Temperature Superposition Principle

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