Effect of Anisotropy of Fibers on the Stress-Strain Response of Fiber-Reinforced Soil
Publication: International Journal of Geomechanics
Volume 15, Issue 1
Abstract
Reinforcing soil with fibers is a useful method for improving the strength and settlement response of soil. The soil and fiber characteristics and their interaction are some of the major factors affecting the strength of reinforced soil. The fibers are usually randomly distributed in the soil, and their orientation has a significant effect on the behavior of the reinforced soil. In the paper, a study of the effect of anisotropic distribution of fibers on the stress-strain response is presented. Based on the concept of the modified Cam clay model, an analytical model was formulated for the fiber-reinforced soil, and the effect of fiber orientation on the stress-strain behavior of soil was studied in detail. The results show that, as the inclination of fibers with the horizontal plane increased, the contribution of fibers in improving the strength of fiber-reinforced soil decreased. The effect of fibers is maximum when they are in the direction of extension, and vice versa.
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Acknowledgments
The authors thank the reviewers for critical and constructive comments. The work reported in this paper is part of the work on “Experimental and Theoretical Studies on Fiber Reinforced Soils” sponsored by the Department of Science and Technology, Government of India, New Delhi. This financial assistance is gratefully acknowledged.
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Published In
International Journal of Geomechanics
Volume 15 • Issue 1 • February 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Feb 6, 2013
Accepted: Feb 14, 2014
Published online: Feb 15, 2014
Published in print: Feb 1, 2015
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