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The effect of the strain rate on soft soil behaviour under cyclic loading
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Ni, Jing, Indraratna, Buddhima, Geng, Xueyu and Rujikiatkamjorn, Cholachat (2012) The effect of the strain rate on soft soil behaviour under cyclic loading. In: 11th Australia - New Zealand Conference on Geomechanics Ground Engineering in a Changing World, Melbourne, Australia, 15-18 Jul 2012. Published in: Proceedings of 'Ground Engineering in a Changing World', the 11th Australia New Zealand Conference on Geomechanics (ANZ 2012)
An open access version can be found in:
Official URL: https://www.worldcat.org/title/proceedings-of-grou...
Abstract
In this paper, cyclic triaxial loading tests were conducted on specimens of soft clay with varying cyclic stresses and frequencies to investigate the performance of soft soil subgrade subjected to cyclic loading. The laboratory results indicate that given the same level of cyclic stress, the stability of clay subgrade is primarily dependent on the loading time with no consistent frequency/train speed effect.
There exists a critical level of cyclic stress between 60 and 80% of the monotonic shear strength, above which failure may occur regardless of the loading frequency. The nature that soils behave
dependently on cyclic stress level rather than loading frequency was investigated through the strain rate during cyclic loading, which is considered responsible for the cyclic response of soft clays under various loading conditions. For loading frequencies ranging from 0.1 to 5 Hz, it was found that the strain rate depended on the cyclic stress ratio rather than the loading frequency, which implies that the cyclic stress level plays a more important role in influencing the cyclic performance of soft soil
subgrade.
Item Type: | Conference Item (Paper) | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | Proceedings of 'Ground Engineering in a Changing World', the 11th Australia New Zealand Conference on Geomechanics (ANZ 2012) | ||||
Publisher: | Australian Geomechanics Society and the New Zealand Geotechnical Society 2012 | ||||
Official Date: | 2012 | ||||
Dates: |
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Status: | Not Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | 11th Australia - New Zealand Conference on Geomechanics Ground Engineering in a Changing World | ||||
Type of Event: | Conference | ||||
Location of Event: | Melbourne, Australia | ||||
Date(s) of Event: | 15-18 Jul 2012 | ||||
Related URLs: | |||||
Open Access Version: |
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