Abstract
With excellent water permeability and high shear strength S, fiber-reinforced sand (FRS) is an ideal material for subgrades and has promising application prospects. In this study, the FRS were formed by adding the randomly distributed fibers to the sand specimens. Based on the triaxial consolidated drained tests, the effects of factors such as fiber content ζ, fiber length lf, relative density Dr and confining pressure σ3 on the S of FRS were systematically investigated. The test results showed that the S of the FRS increased as ζ, lf, Dr and σ3 increased. Under axial loads, the stress-strain curve of the FRS exhibited a hardening trend. Under specific Dr and σ3, the S increment of the FRS had a strong linear relationship with ζ and lf. The Mohr’s stress circle results showed that the FRS possessed not only frictional strength but also high cohesive strength. Based on the triaxial consolidated drained test results, the S of the FRS was calculated using the Zornberg model and Michalowski model. The calculation results showed that the S predicated by the Zornberg model differed significantly from the measured values. However, the S predicted by the Michalowski model were in good agreement with the measured values.
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Ahmad, F., Bateni, F., and Azmi, M. (2010). “Performance evaluation of silty sand reinforced with fibers.” Geotextiles and Geomembranes, Vol. 28, No. 1, pp. 93–99, DOI: https://doi.org/10.1016/j.geotexmem.2009.09.017.
Claria, J. J. and Vettorelo, P. V. (2016). “Mechanical behavior of loose sand reinforced with synthetic fibers.” Soil Mechanics and Foundation Engineering, Vol. 53, No. 1, pp. 12–18, DOI: https://doi.org/10.1007/s11204-016-9357-9.
Consoli, N. C., Casagrande, M. D. T., and Coop, M. R. (2005). “Effect of fiber reinforcement on the isotropic compression behavior of a sand.” Journal of Geotechnical and Geoenvironmental Engineering, Vol. 131, No. 11, pp. 1434–1436, DOI: https://doi.org/10.1061/(ASCE)1090-0241(2005)131:11(1434).
Consoli, N. C., Casagrande, M. D. T., Prietto, P. D. M., and Thome, A. (2003). “Plate load test on fiber-reinforced soil.” Journal of Geotechnical and Geoenvironmental Engineering, Vol. 129, No. 10, pp. 951–955, DOI: https://doi.org/10.1061/(ASCE)1090-0241(2003)129:10(951).
Consoli, N. C., Márcio, A. V., Fonini, A., and Rosa, F. D. (2009). “Fiber reinforcement effects on sand considering a wide cementation range.” Geotextiles and Geomembranes, Vol. 27, No. 3, pp. 196–203, DOI: https://doi.org/10.1016/j.geotexmem.2008.11.005.
Diambra, A., Ibraim, E., Wood, D. M., and Russell, A. R. (2010). “Fiber reinforced sands: Experiments and modelling.” Geotextiles and Geomembranes, Vol. 28, No. 3, pp. 238–250, DOI: https://doi.org/10.1016/j.geotexmem.2009.09.010.
Ding, J. H. and Bao, C. G. (1999). “Mechanical mechanism analysis of reinforced soil.” 8th Conference on Soil Mechanics and Geotechnical Engineering, Nanjing, China, pp. 441–444.
Gray, D. H. and Ohashi, H. (1983). “Mechanics of fiber reinforcement in sand.” Journal of Geotechnical Engineering, Vol. 109, No. 3, pp. 335–353, DOI: https://doi.org/10.1061/(ASCE)0733-9410(1983)109:3(335).
Li, C. and Zornberg, J. G. (2013). “Mobilization of reinforcement forces in fiber-reinforced soil.” Journal of Geotechnical and Geoenvironmental Engineering, Vol. 139, No. 1, pp. 107–115, DOI: https://doi.org/10.1061/(ASCE)GT.1943-5606.0000745.
Maher, M. H. and Gary, D. H. (1990). “Static response of sands reinforced with randomly distributed fibers.” Journal of Geotechnical Engineering, Vol. 116, No. 11, pp. 1661–1677, DOI: https://doi.org/10.1061/(ASCE)0733-9410(1990)116:11(1661).
Michalowski, R. L. and Cermak, J. (2003). “Triaxial compression of sand reinforced with fibers.” Journal of Geotechnical and Geoenvironmental Engineering, Vol. 129, No. 2, pp. 125–136, DOI: https://doi.org/10.1061/(ASCE)1090-0241(2003)129:2(125).
Noorzad, R. and Amini, P. F. (2014). “Liquefaction resistance of babolsar sand reinforced with randomly distributed fibers under cyclic loading.” Soil Dynamics and Earthquake Engineering, Vol. 66, pp. 281–292, DOI: https://doi.org/10.1016/j.soildyn.2014.07.011.
Ranjan, G., Vasan R. M., and Charan H. D. (1996). “Probabilistic analysis of randomly distributed fiber-reinforced soil.” Journal of Geotechnical Engineering, Vol. 122, No. 6, pp. 419–426, DOI: https://doi.org/10.1061/(ASCE)0733-9410(1996)122:6(419).
Sadeghi, M. M. and Beigi, F. H. (2014). “Dynamic behavior of reinforced clayey sand under cyclic loading.” Geotextiles and Geomembranes, Vol. 42, No. 5, pp. 564–572, DOI: https://doi.org/10.1016/j.geotexmem.2014.07.005.
Sadek, S., Najjar, S. S., and Freiha, F. (2010). “Shear strength of fiber-reinforced sands.” Journal of Geotechnical and Geoenvironmental Engineering, Vol. 136, No. 3, pp. 490–499, DOI: https://doi.org/10.1061/(ASCE)GT.1943-5606.0000235.
Shewbridge, S. E. and Sitar, N. (1989). “Deformation characteristics of reinforced sand in direct shear.” Journal of Geotechnical Engineering, Vol. 115, No. 8, pp. 1134–1147, DOI: 10.1061/(ASCE)0733-9410 (1989)115:8(1134).
Shewbridge, S. E. and Sitar, N. (1990). “Deformation-based model for reinforced sand.” Journal of Geotechnical Engineering, Vol. 116, No. 7, pp. 1153–1170, DOI: https://doi.org/10.1061/(ASCE)0733-9410(1990)116:7(1153).
Shewbridge, S. E. and Sitar, N. (1996). “Formation of shear zones in reinforced sand.” Journal of Geotechnical Engineering, Vol. 122, No. 11, pp. 873–885, DOI: https://doi.org/10.1061/(ASCE)0733-9410(1996)122:11(873).
Shukla, S. K. (2017). Fundamentals of fibre-reinforced soil engineering, Springer Press, Berlin, Germany, DOI: https://doi.org/10.1007/978-981-10-3063-5.
Tang, C. S., Wang, D.Y., Cui, Y. J., Shi, B., and Li, J. (2016). “Tensile strength of fiber-reinforced soil.” Journal of Materials in Civil Engineering, Vol. 28, No. 7, p. 04016031, DOI: https://doi.org/10.1061/(ASCE)MT.1943-5533.0001546.
Wang, Y. X., Guo, P. P., Dai, F., Li, X., Zhao, Y. L., and Liu, Y. (2018). “Behavior and modeling of fiber-reinforced clay under triaxial compression by combining the superposition method with the energy-based homogenization technique.” International Journal of Geomechanics, Vol. 18, No. 12, p. 04018172, DOI: https://doi.org/10.1061/(ASCE)GM.1943-5622.0001313.
Wang, Y. X., Guo, P. P., Ren, W. X., Yuan, B. X., Yuan, H. P., Zhao, Y. L., Shan, S. B., and Cao, P. (2017). “Laboratory investigation on strength characteristics of expansive soil treated with jute fiber reinforcement.” International Journal of Geomechanics, Vol. 17, No. 11, pp. 1–12, DOI: https://doi.org/10.1061/(ASCE)GM.1943-5622.0000998.
Yetimoglu, T. and Salbas, O. (2003). “A study on shear strength of sands reinforced with randomly distributed discrete fibers.” Geotextiles and Geomembranes, Vol. 21, No. 2, pp. 103–110, DOI: https://doi.org/10.1016/S0266-1144(03)00003-7.
Zhang, Y. M., Zhang, X. D., and Zhang, H. R. (2005). “Test research of geotechnique textile soil reinforcement mechanism and engineering application.” Rock and Soil Mechanics, Vol. 26, No. 8, pp. 1323–1326.
Zornberg, J. G. (2002). “Discrete framework for limit equilibrium analysis of fiber-reinforced soil.” Géotechnique, Vol. 52, No. 8, pp. 593–604, DOI: https://doi.org/10.1680/geot.2002.52.8.593.
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This study was supported by the Special Fund for Scientific Research by Xijing University (XJ18T01) and Special Fund for Scientific Research by Shaanxi Provincial Education Department(18JK1199).
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Li, G., Zhang, J. & Liu, J. Experimental Study on the Shear Behaviors of PolypropyleneFiber-Reinforced Sand. KSCE J Civ Eng 23, 4992–5001 (2019). https://doi.org/10.1007/s12205-019-0794-7
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DOI: https://doi.org/10.1007/s12205-019-0794-7