Laboratory Assessment of the Mechanical Properties of an Unsaturated Mid-Atlantic Silty Sand
Publication: Journal of Materials in Civil Engineering
Volume 33, Issue 7
Abstract
Natural soil formation processes involve variable particle size distributions that vary spatially within a deposit, giving rise to an array of soils that transition from one general soil type to another within essentially similar deposits. Characterization of such transition soils in the active zone is something past research has largely overlooked. An evaluation of the unsaturated strength behavior of a transition soil was carried out on a native mid-Atlantic silty sand. A suite of unsaturated consolidated drained axisymmetric triaxial shear tests was performed, and the stress–strain and volume change characteristics of the transition silty sand under different values of matric suction, confining pressure, strain rate, and fines content were investigated. It is found that the triaxial shear strength increases with increasing matric suction, confining pressure, strain rate, and fines content. The volumetric strain increases with increase in matric suction and confining pressure, and it decreases as fines content and strain rate are increased. The experimental results are used to further validate a state-dependent constitutive model for unsaturated soils that was recently proposed based on the theory of bounding surface plasticity and the framework of hyperelasticity. It is shown that the model simulations are in good agreement with the experimental data.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
References
Ahuja, L., J. W. Naney, and R. D. Williams. 1985. “Estimating soil water characteristics from simpler properties or limited data.” Soil Sci. Soc. Am. J. 49 (5): 1100–1105. https://doi.org/10.2136/sssaj1985.03615995004900050005x.
Anantanasakul, P., J. A. Yamamuro, and V. N. Kaliakin. 2012. “Stress-strain and strength characteristics of silt-clay transition soils.” J Geotech. Geoenviron. Eng. 138 (10): 1257–1265. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000692.
ASTM. 2017a. Standard practice for classification of soils for engineering purposes (unified soil classification system). West Conshohocken, PA: ASTM.
ASTM. 2017b. Standard test methods for liquid limit, plastic limit, and plasticity index of soils. West Conshohocken, PA: ASTM.
ASTM. 2017c. Standard test methods for particle-size distribution (gradation) of soils using sieve analysis. West Conshohocken, PA: ASTM.
Ba, M., K. Nokkaew, M. Fall, and J. M. Tinjum. 2013. “Effect of matric suction on resilient modulus of compacted aggregate base courses.” Geotech. Geol. Eng. 31 (5): 1497–1510. https://doi.org/10.1007/s10706-013-9674-y.
Bahadori, H., A. Ghalandarzadeh, and I. Towhata. 2008. “Effect of non plastic silt on the anisotropic behavior of sand.” Soils Found. 48 (4): 531–545. https://doi.org/10.3208/sandf.48.531.
Been, K., and M. G. Jefferies. 1985. “A state parameter for sands.” Géotechnique 35 (2): 99–112. https://doi.org/10.1680/geot.1985.35.2.99.
Bishop, A. W., and L. D. Wesley. 1975. “A hydraulic triaxial apparatus for controlled stress path testing.” Géotechnique 25 (4): 657–670. https://doi.org/10.1680/geot.1975.25.4.657.
Chang, C. S., and Y. Deng. 2019. “Revisiting the concept of inter-granular void ratio in view of particle packing theory.” Géotechnique 9 (2): 121–129. https://doi.org/10.1680/jgele.18.00175.
Chang, N. Y. 1990. Influence of fines contents and plasticity on earthquake-induced soil liquefaction: Final report. Denver: Univ. of Colorado at Denver.
Chin, K.-B., E. Leong, and H. Rahardjo. 2010. “A simplified method to estimate the soil-water characteristic curve.” Can. Geotech. J. 47 (12): 1382–1400. https://doi.org/10.1139/T10-033.
Cola, S., and P. Simonini. 2002. “Mechanical behavior of silty soils of the Venice lagoon as a function of their grading characteristics.” Can. Geotech. J. 39 (4): 879–893. https://doi.org/10.1139/t02-037.
Dye, H. B., S. L. Houston, and B. D. Welfert. 2011. “Influence of unsaturated soil properties uncertainty on moisture flow modeling.” Geotech. Geol. Eng. 29 (2): 161–169. https://doi.org/10.1007/s10706-009-9281-0.
Ferreira, P. M. V., and A. V. D. Bica. 2006. “Problems in identifying the effects of structure and critical state in a soil with a transitional behaviour.” Géotechnique 56 (7): 445–454. https://doi.org/10.1680/geot.2006.56.7.445.
Finn, L., R. H. Ledbetter, and G. Wu. 1994. “Liquefaction in silty soils: Design and analysis.” In Ground Failures under Seismic Conditions, Geotechnical Special Publication 44, edited by S. Prakash and P. Dakoulas, 51–76. Reston, VA: ASCE.
Fredlund, D. G., and S. L. Houston. 2009. “Protocol for the assessment of unsaturated soil properties in geotechnical engineering practice.” Can. Geotech. J. 46 (6): 694–707. https://doi.org/10.1139/T09-010.
Fredlund, D. G., H. Rahardjo, and M. D. Fredlund. 2012. Soil mechanics for unsaturated soils. New York: Wiley.
Fredlund, D. G., and A. Xing. 1994. “Equations for the soil-water characteristic curve.” Can. Geotech. J. 31 (4): 521–532. https://doi.org/10.1139/t94-061.
Gupta, S. C., and W. E. Larson. 1979. “Estimating soil water retention characteristics from particle size distribution, organic matter percent, and bulk density.” Water Resour. Res. 15 (6): 1633–1635. https://doi.org/10.1029/WR015i006p01633.
Han, Z., S. K. Vanapalli, and W.-L. Zou. 2016. “Integrated approaches for predicting soil-water characteristic curve and resilient modulus of compacted fine-grained subgrade soils.” Can. Geotech. J. 54 (5): 646–663. https://doi.org/10.1139/cgj-2016-0349.
Hilf, J. W. 1956. “An investigation of pore-water pressure in compacted cohesive soils.” Ph.D. dissertation, Dept. of Civil Engineering, Univ. of Colorado.
Holzer, T., T. Hanks, and T. Youd. 1989. “Dynamics of liquefaction during the 1987 Superstition Hills, California, earthquake.” Science 244 (4900): 56–59. https://doi.org/10.1126/science.244.4900.56.
Ishihara, K. 1993. “Liquefaction and flow failure during earthquakes.” Géotechnique 43 (3): 351–451. https://doi.org/10.1680/geot.1993.43.3.351.
Ismail Ibrahim, K. M. H. 2015. “Effect of percentage of low plastic fines on the unsaturated shear strength of compacted gravel soil.” Ain Shams Eng. J. 6 (2): 413–419. https://doi.org/10.1016/j.asej.2014.10.012.
Kadivar, M., K. N. Manahiloh, and V. N. Kaliakin. 2019. “A bounding surface based constitutive model for unsaturated granular soils.” In Proc., Geo-Congress 2019: Geotechnical Materials, Modeling, and Testing, edited by C. L. Meehan, S. Kumar, M. A. Pando, and J. T. Coe, 833–843. Reston, VA: ASCE. https://doi.org/10.1061/9780784482124.084.
Kadivar, M., K. N. Manahiloh, and V. N. Kaliakin. Forthcoming. “A hyperelastic bounding surface plasticity model for unsaturated granular soils.” Int. J. Geomech.
Lashkari, A., and M. Kadivar. 2016. “A constitutive model for unsaturated soil–structure interfaces.” Int. J. Numer. Anal. Methods Geomech. 40 (2): 207–234. https://doi.org/10.1002/nag.2392.
Lashkari, A., A. Karimi, K. Fakharian, and F. Kaviani-Hamedani. 2017. “Prediction of undrained behavior of isotropically and anisotropically consolidated Firoozkuh sand: Instability and flow liquefaction.” Int. J. Geomech. 17 (10): 04017083. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000958.
Lashkari, A., and M. S. Yaghtin. 2018. “Sand flow liquefaction instability under shear–volume coupled strain paths.” Géotechnique 68 (11): 1002–1024. https://doi.org/10.1680/jgeot.17.P.164.
Murthy, T. G., D. Loukidis, J. A. H. Carraro, M. Prezzi, and R. Salgado. 2007. “Undrained monotonic response of clean and silty sands.” Géotechnique 57 (3): 273–288. https://doi.org/10.1680/geot.2007.57.3.273.
Nevels, J. B., C. R. Clarke, L. Chen, and R. Bulut. 2016. “A site assessment of pavement cracking in a drought environment: A case history.” E3S Web Conf. 9 (2016): 20004. https://doi.org/10.1051/e3sconf/20160920004.
Nocilla, A., M. R. Coop, and F. Colleselli. 2006. “The mechanics of an Italian silt: An example of ‘transitional’ behaviour.” Géotechnique 56 (4): 261–271. https://doi.org/10.1680/geot.2006.56.4.261.
Patil, U. D., L. R. Hoyos, M. Morvan, and A. J. Puppala. 2018. “Bounding surface-based modeling of compacted silty sand exhibiting suction dependent postpeak strain softening.” Int. J. Numer. Anal. Methods Geomech. 42 (14): 1741–1761. https://doi.org/10.1002/nag.2837.
Patil, U. D., L. R. Hoyos, and A. J. Puppala. 2016. “Characterization of compacted silty sand using a double-walled triaxial cell with fully automated relative-humidity control.” Geotech. Test. J. 39 (5): 742–756. https://doi.org/10.1520/GTJ20150156.
Pitman, T. D., P. K. Robertson, and D. C. Sego. 1994. “Influence of fines on the collapse of loose sands.” Can. Geotech. J. 31 (5): 728–739. https://doi.org/10.1139/t94-084.
Ponzoni, E., A. Nocilla, and M. R. Coop. 2017. “The behaviour of a gap graded sand with mixed mineralogy.” Soils Found. 57 (6): 1030–1044. https://doi.org/10.1016/j.sandf.2017.08.029.
Rahimi, A., and H. Rahardjo. 2015. “New approach to improve soil-water characteristic curve to reduce variation in estimation of unsaturated permeability function.” Can. Geotech. J. 53 (4): 717–725. https://doi.org/10.1139/cgj-2015-0199.
Rahman, M. M., S. R. Lo, and M. A. L. Baki. 2011. “Equivalent granular state parameter and undrained behaviour of sand–fines mixtures.” Acta Geotech. 6 (4): 183–194. https://doi.org/10.1007/s11440-011-0145-4.
Rawls, J. W., L. D. Brakensiek, and E. K. Saxtonn. 1982. “Estimation of soil water properties.” Trans. ASAE 25 (5): 1316–1320. https://doi.org/10.13031/2013.33720.
Russell, A. R., and N. Khalili. 2006. “A unified bounding surface plasticity model for unsaturated soils.” Int. J. Numer. Anal. Methods Geomech. 30 (3): 181–212.
Seed, R. B., and L. F. Harder. 1990. “SPT-based analysis of cyclic pore pressure generation and undrained residual strength.” In Vol. 2 of Proc., H.B. Seed Memorial Symp., edited by J. M. Duncan, 351–376. Richmond, VA: BiTech Publishers.
Thevanayagam, S. 1998. “Effect of fines and confining stress on undrained shear strength of silty sands.” J Geotech. Geoenviron. Eng. 124 (6): 479–491. https://doi.org/10.1061/(ASCE)1090-0241(1998)124:6(479).
Thevanayagam, S., K. Ravishankar, and S. Mohan. 1996. “Steady-state strength, relative density, and fines content relationship for sands.” J. Transp. Res. Board 1547 (1): 61–67. https://doi.org/10.1177/0361198196154700109.
Thevanayagam, S., T. Shenthan, S. Mohan, and J. Liang. 2002. “Undrained fragility of clean sands, silty sands, and sandy silts.” J Geotech. Geoenviron. Eng. 128 (10): 849–859. https://doi.org/10.1061/(ASCE)1090-0241(2002)128:10(849).
Vaid, Y. P. 1994. “Liquefaction of silty soils.” In Ground Failures under Seismic Conditions, Geotechnical Special Publication 44, edited by S. Prakash and P. Dakoulas, 1–16. Reston, VA: ASCE.
Wray, W. K., and K. T. Meyer. 2004. “Expansive clay soil—A widespread and costly GeoHazard.” Geo-Strata—Geo Inst. 5 (4): 24–28.
Xu, L., and M. R. Coop. 2017. “The mechanics of a saturated silty loess with a transitional mode.” Géotechnique 67 (7): 581–596. https://doi.org/10.1680/jgeot.16.P.128.
Xu, L.-Y., J.-M. Pan, Y.-Y. Xue, and F. Cai. 2020. “A numerical investigation of influence of low-plasticity fines in sand on lateral response of piles.” Mar. Georesour. Geotechnol. 38 (3): 302–311. https://doi.org/10.1080/1064119X.2019.1569740.
Zapata, C. 1999. “Uncertainty in soil-water-characteristic curve and impacts on unsaturated shear strength predictions.” Ph.D. thesis, Dept. of Civil, Environmental and Sustainable Engineering, Arizona State Univ.
Zapata, C., Y. Perera, and W. Houston. 2009. “Matric suction prediction model in new AASHTO Mechanistic-Empirical Pavement Design Guide.” Transp. Res. Rec. 2101 (1): 53–62. https://doi.org/10.3141/2101-07.
Zhai, Q., and H. Rahardjo. 2014. Variability in soil-water characteristic curve associated with fitting parameters. 1st ed. Boca Raton, FL: CRC Press.
Zlatovic, S., and K. Ishihara. 1995. “On the influence of nonplastic fines on residual strength.” In Proc., 1st Int. Conf. on Earthquake Geotechnical Engineering (IS-TOKYO’95), 239–244. Rotterdam, Netherlands: A.A. Balkema.
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Received: Apr 18, 2020
Accepted: Nov 18, 2020
Published online: May 4, 2021
Published in print: Jul 1, 2021
Discussion open until: Oct 4, 2021
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