Effect of Intermediate Principal-Stress Ratio on Particle Breakage of Rockfill Material
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 142, Issue 4
Abstract
The true triaxial compression test is the three-dimensional test, where the intermediate principal stress is not less than the minor principal stress and not more than the major principal stress. The effect of the intermediate principal stress ratio (i.e., the -value) on particle breakage of rockfill material (RFM) was investigated by conducting a series of true triaxial compression tests under the constant- and constant- loading condition. It was observed that the relative breakage extent of RFM increased with an increase in confining pressure but decreased with an increase in -value. The effect of the -value on the particle breakage of RFM was well predicted by an empirical equation.
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Acknowledgments
The authors would like to acknowledge the financial support from the 111 Project (Grant No. B13024), the Program for Changjiang Scholars and Innovative Research Team in University (Grant No. IRT1125), the Fundamental Research Funds for the Central Universities (Grant No. 106112015CDJXY200008) and the National Natural Science Foundation of China (Grant No. 51509024).
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© 2015 American Society of Civil Engineers.
History
Received: Mar 4, 2015
Accepted: Sep 14, 2015
Published online: Dec 16, 2015
Published in print: Apr 1, 2016
Discussion open until: May 16, 2016
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