Effect of Randomly reinforced Soil on Increasing Resistance Against Piping Phenomenon

Document Type : Research Article

Authors

1 M.Sc., Department of Irrigation and Reclamation Engineering, Tehran University

2 Associate Professor, Department of Irrigation and Reclamation Engineering, Tehran University

3 Professor, Department of Irrigation and Reclamation Engineering, Tehran University

4 Lecturer, Department of Irrigation and Reclamation Engineering, Tehran University

Abstract

This paper presents an investigation on the randomly reinforced soil against piping through experimental
tests. Randomly reinforced samples were prepared with two types of fiber (polyester and polyethylene
terephthalate) with different diameter (0.2 and 0.3 mm). Experimental tests were carried out on
unreinforced and reinforced samples with different percent (0.5, 0.75, 1 and 1.25%) and length (5, 25,
35 and 50 mm) under various hydraulic head in a special apparatus. Discharge and seepage velocity of
water flow through unreinforced and reinforced samples were measured and calculated and comparison
was made with unreinforced sample. The results showed that the inclusion of fiber reduces the seepage
velocity and increased the hydraulic gradient and piping resistance. Furthermore, increasing of hydraulic
gradient and piping resistance is function of fiber content and fiber length

Keywords

Main Subjects

References

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Amirkabir Journal of Civil Engineering
Volume 48, Issue 4
December 2016
Pages 439-448

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