Physics – Classical Physics
Scientific paper
2007-05-28
Geotechnical Testing Journal 30, 3 (05/2007) 227-233
Physics
Classical Physics
Scientific paper
10.1520/GTJ100539
A new experimental set-up using a differential pressure transducer was developed, that enables the monitoring of volume changes in cyclic triaxial tests on unsaturated soils. Calibration tests were performed in order to analyze the performance of the set-up, especially in terms of loading frequencies. Based on calibration results, a low frequency of 0.05 Hz was adopted for the tests carried out on the unsaturated loess from northern France. Five water contents were considered in the tests. The obtained results have confirmed the efficiency of the new system for volume change monitoring under cyclic loading. The effect of water content on the cyclic behavior of loess was clearly evidenced. Finally, some suggestions were made to improve the accuracy of the system.
Boulay Xavier
Cui Yu-Jun
Marchadier Gilles
Marcial Duilio
Tang Anh-Minh
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