Laboratory Model Study on Geosynthetic Reinforced Soil Retaining Walls
Publication: Journal of Geotechnical Engineering
Volume 115, Issue 7
Abstract
Reinforced soil technologies have been extensively used during the past few decades in the construction of embankments and retaining walls. A large variety of reinforcing materials emerged and have been developed for construction purposes, including: metal strips, bar mats, geotextile sheets, geogrids, etc, Fullscale experiments and centrifugal and reduced‐scale laboratory model studies have been performed to provide a rational basis for design methods of reinforcing systems using quasi‐inextensible steel strips and bar mats. However, laboratory model studies on the behavior of reinforced soil walls with more extensible reinforcements, such as geotextiles and geogrids, have been rather limited. These studies have encountered fundamental difficulties pertaining to similitude requirements and specifically appropriate modeling of the reinforcing materials, as well as to the proper instrumentation of extensible reinforcing elements to measure the mobilized tension forces. This paper describes the results of a laboratory model study on the performance, behavior and failure mechanisms of reinforced soil‐retaining walls using different reinforcing materials, namely: woven polyester geotextile strips, plastic grids, and nonwoven geotextile strips. The model walls were instrumented to obtain measurement of stresses in the reinforcements, displacements at different points along the reinforcements, displacements of the facing, and to identify, using colored sand, the failure surface in the soil. Experimental results indicate that the confinement of the reinforcement has a major effect on the structure performance. The paper also outlines practical conclusions that can be drawn for design purposes.
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References
1.
Boden, J. B., Irwin, H. M., and Pocock, R. G. (1977). “Construction of experimental reinforced earth wall at the TRRL.” Symp. on Reinforced Earth and Other Composite Soil Techniques, Edinburgh, Scotland.
2.
Blivet, J. C., et al. (1986). “Model test in a centrifuge of a wall reinforced with geotextiles.” Proc. of 3rd Int. Conf. on Geotextiles, Vienna, Austria, 1219–1224.
3.
Bolton, N. D., Choudhury, S. P., and Pang, P. L. (1978). “Reinforced earth walls: A centrifugal model study.” Proc. Symp. on Earth Reinforcement, ASCE, 252–281.
4.
Coyle, H. M., and Reese, L. C. (1966). “Load transfer for axially loaded piles in clay.” J. Soil Mech. and Found. Engrg. Div., ASCE, 92(2), 1–26.
5.
Delmas, P., Gourc, J. P., and Perrier, H. (1985). “Designing geotextile reinforced earthwork.” Proc. 11th Int. Conf. on Soil Mech. and Found. Engrg., San Francisco, California, 3, 1769–1772.
6.
Holtz, R. D., and Broms, B. B. (1977). “Walls reinforced by fabrics—results of model tests.” Proc. Int. Conf. on the Use of Fabrics in Geotech., I, 113–117.
7.
Ingold, T. S., and Miller, K. S. (1982). “Analytical and laboratory investigations of reinforced clay.” Proc. 2nd Int. Conf. on Geotextiles, III, 587–592.
8.
Juran, I., and Schlosser, F. (1978). “Theoretical analysis of failure in reinforced earth structures.” Proc. Symp. on Earth Reinforcement, ASCE, 528–555.
9.
Lee, K. L., Adams, B. D., and Vagneron, J. M. P. (1973). “Reinforced earth retaining walls.” J. Soil Mech. and Found. Engrg. Div., ASCE, 99(10), 745–764.
10.
Schlosser, F., and Segrestin, P. (1979). “Dimensionnement des ouvages en Terre Armee par la methode de l'equilibre local.” Proc. Int. Conf. on Soil Reinforcement: Reinforced Earth and Other Techniques, 1, 157–162 (in Frgnch).
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Copyright © 1989 ASCE.
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Published online: Jul 1, 1989
Published in print: Jul 1989
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