Failure of Fiber-Reinforced Granular Soils
Publication: Journal of Geotechnical Engineering
Volume 122, Issue 3
Abstract
Short fibers have been tried in the past few years as a soil-improvement admixture (reinforcement), yet no failure criteria for fiber-reinforced soils, consistent with numerical methods for solving boundary-value problems, are available. An attempt at deriving the limit condition for a fiber-reinforced granular soil is presented. An energy-based homogenization scheme is used to arrive at the macroscopic failure stress of the fibrous granular composite. A piecewise closed-form failure criterion is derived. The internal friction angle is used to quantify the strength of the granular matrix, and the fibers are characterized by volumetric concentration, aspect ratio, yield point, and the fiber-soil interface friction angle. Laboratory tests on specimens with low fiber content indicate a good agreement of the model predictions with the actual test results.
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References
1.
Andersland, O. B., and Khattak, A. S. (1979). “Shear strength of kaolinite/fiber soil mixtures.”Proc., Int. Conf. on Soil Reinforcement: Reinforced Soil and Other Techniques; Vol. 1, 11–16.
2.
Arenicz, R. M., and Chowdhury, R. N.(1988). “Laboratory investigation of earth walls simultaneously reinforced by strips and random reinforcement.”Geot. Testing J., 11(4), 241–247.
3.
Budiansky, B. (1965). “On the elastic moduli of some heterogeneous materials.”J. Mech. Phys. Solids, Vol. 13, 223–227.
4.
de Buhan, P., Mangiavacchi, R., Nova, R., Pellegrini, G., and Salençon, J.(1989). “Yield design of reinforced earth walls by homogenization method.”Géotechnique, London, England, 39(2), 189–201.
5.
di Prisco, C., and Nova, R. (1993). “A constitutive model for soil reinforced by continuous threads.”Geotextiles and Geomembranes, Vol. 12, 161–178.
6.
Dvorak, G. J., Rao, M. S. M., and Tarn, J. Q. (1974). “Generalized initial yield surfaces for unidirectional composites.”J. Appl. Mech., Trans. ASME, Vol. 41, 249–253.
7.
Gray, D. H., and Ohashi, H. (1983). “Mechanics of fiber reinforcement in sand.”J. Geotech. Engrg., ASCE, Vol. 109, 335–353.
8.
Hashin, Z. (1964). “Transverse strength.”Evaluation of filament reinforced composites for aerospace structural applications. N. F. Dow and B. W. Rosen, eds., NASA CR-207, Nat. Aeronautics and Space Admin. (NASA), Washington, D.C., 36–43.
9.
Hashin, Z. (1983). “Analysis of composite materials—a survey.”J. Appl. Mech., Trans ASME, Vol. 50, 481–505.
10.
Hill, R. (1965). “A self-consistent mechanics of composite materials.”J. Mech. Phys. Solids, Vol. 13, 213–222.
11.
Hoare, D. J. (1979). “Laboratory study of granular soils reinforced with randomly oriented discrete fibers.”Proc., Int. Conf. on Soil Reinforcement: reinforced soil and other techniques; Vol. 1, 47–52.
12.
Lade, P. V. (1977). “Elasto-plastic stress-strain theory for cohesionless soil with curved yield surfaces.”Int. J. Solids Structures, Vol. 13, 1019–1035.
13.
Leflaive, E., and Liausu, P. (1986). “The reinforcement of soils by continuous threads.”Proc., 3rd Int. Conf. on Geotextiles; Vol. 4, Gisteldruck, Vienna, Austria, 1159–1162.
14.
Maher, M. H., and Gray, D. H.(1990). “Static response of sands reinforced with randomly distributed fibers.”J. Geotech. Engrg., ASCE, 116(11), 1661–1677.
15.
McLaughlin, P. V., and Batterman, S. C. (1970). “Limit behavior of fibrous materials.”Int. J. Solids Struct., Vol. 6, 1357–1376.
16.
Michalowski, R. L., and Zhao, A. (1993). “Failure criteria for homogenized reinforced soils and application in limit analysis of slopes.”Proc., Geosynthetics '93, Industrial Fabrics Assoc. Int., Vol. 1, Minneapolis, Minn., 443–453.
17.
Michalowski, R. L., and Zhao, A. (1994). “Failure criteria for fibrous granular composites.”Computer methods and advances in geomechanics, H. J. Siriwardane and M. M. Zaman, eds., A. A. Balkema, Rotterdam, The Netherlands, Vol. 2, 1385–1390.
18.
Michalowski, R. L., and Zhao, A. (1995). “Limit condition for unidirectionally reinforced soils.”Proc., Numer. Models in Geomech. V, G. N. Pande, and S. Pietruszczak, A. A. Balkema, Rotterdam, The Netherlands, 237–242.
19.
Mori, T., and Tanaka, K. (1973). “Average stress in matrix and average elastic energy of materials with misfitting inclusions.”Acta Metallurgica, Vol. 21, 571–574.
20.
Sawicki, A.(1983). “Plastic limit behavior of reinforced earth.”J. Geotech. Engrg., ASCE, 109(7), 1000–1005.
21.
Shu, L. S., and Rosen, B. W. (1967). “Strength of fiber-reinforced composites by limit analysis methods.”J. Composite Mat., Vol. 1, 366–381.
22.
Waldron, L. J. (1977). “The shear resistance of root-permeated homogeneous and stratified soil.”Soil Sci. Soc. Am. J., Vol. 41, 843–849.
23.
Wu, T. H., and McKinnell W. P. III, and Swanston(1979). “Strength of tree roots and landslides on Prince of Wales Island, Alaska.”Can. Geotech. J., Ottawa, Canada, 16(1), 19–33.
Information & Authors
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Published In
Journal of Geotechnical Engineering
Volume 122 • Issue 3 • March 1996
Pages: 226 - 234
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Mar 1, 1996
Published in print: Mar 1996
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