Undrained Responses of Reconstituted Saturated Soft Clay with Various Stress Paths
Publication: International Journal of Geomechanics
Volume 22, Issue 10
Abstract
The loading stress path affects the soil’s dynamic response, but there are few previous studies on bidirectional shearing, let alone considering the influence of phase difference and bidirectional shear frequencies. This study investigates the undrained responses of reconstituted saturated soft clay under four typical shear stress paths using a multidirectional cyclic simple test system. All the soil samples are consolidated under normal vertical stress sheared in undrained conditions by applying two horizontal shear stresses acting along different directions from the consolidation stress. Test results indicate that soft clay’s dynamic strain, softening index, and dynamic strength depend significantly on the value of phase difference and the bidirectional shear frequencies: dynamic strength and softening index decrease while dynamic strain accumulates with increasing phase difference and decreasing bidirectional shear frequencies. An empirical formula is proposed to predict the development pattern of softening index versus load cycles under various shear paths based on test results.
Practical Applications
In this study, a series of simple shear tests was carried out under multidirectional shear paths, which may be helpful for field pile testing under cyclic loading. The simple shear tests all showed an increase in shear strain accumulation, owing to the change in shear stress path. This increase is undoubtedly smaller than the accumulation of lateral displacements in the pile tests because of the different boundary conditions and stress levels between the field and laboratory tests. Since soil behavior partly defines pile drifts, some models can also be validated at a small scale (element level) before investigating the pile–soil system. It is proposed that the simple shear test results can be used to calibrate numerical models for various stress paths.
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Acknowledgments
The research was financially supported by the National Natural Science Foundation of China (Grant Nos. 51639008 and 51890911).
References
Bray, J. D., et al. 2004. “Subsurface characterization at ground failure sites in Adapazari, Turkey.” J. Geotech. Geoenviron. Eng. 130 (7): 673–685. https://doi.org/10.1061/(ASCE)1090-0241(2004)130:7(673).
Cai, Y., Q. Sun, L. Guo, C. H. Juang, and J. Wang. 2015. “Permanent deformation characteristics of saturated sand under cyclic loading.” Can. Geotech. J. 52 (6): 795–807.
Cai, Y., C. Gu, J. Wang, C. H. Juang, C. Xu, and X. Hu. 2013. “One-way cyclic triaxial behaviour of saturated clay: Comparison between constant and variable confining pressure.” J. Geotech. Geoenviron. Eng. 139 (5): 797–809. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000760.
Cai, Y. Q., L. Guo, R. J. Jardine, Z. X. Yang, and J. Wang. 2017. “Stress-strain response of soft clay to traffic loading.” Géotechnique 67 (5): 446–451. https://doi.org/10.1680/jgeot.15.P.224.
Chang, E. T. Y., and B. F. Chao. 2011. “Co-seismic surface deformation of the 2011 off the Pacific coast of Tohoku Earthquake: Spatio-temporal EOF analysis of GPS data.” Earth Planets Space 63 (7): 649–654. https://doi.org/10.5047/eps.2011.07.002.
DeGroot, D. J., C. C. Ladd, and J. T. Germaine. 1996. “Undrained multidirectional direct simple shear behavior of cohesive soil.” J. Geotech. Eng. 122 (2): 91–98. https://doi.org/10.1061/(ASCE)0733-9410(1996)122:2(91).
Di, H., S. Zhou, J. Xiao, Q. Gong, and Z. Luo. 2016. “Investigation of the long-term settlement of a cut-and-cover metro tunnel in a soft deposit.” Eng. Geol. 204: 33–40. https://doi.org/10.1016/j.enggeo.2016.01.016.
Dong, Q., C. Xu, Y. Cai, H. Juang, J. Wang, Z. Yang, and C. Gu. 2016. “Drained instability in loose granular material.” Int. J. Geomech. 16 (2): 04015043. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000524.
Grant, D. N., G. L. Fenves, and A. S. Whittaker. 2004. “Bidirectional modelling of high-damping rubber bearings.” J. Earthquake Eng. 8 (SI1): 161–185.
Gu, C., Z. Gu, Y. Cai, J. Wang, and D. Ling. 2017. “Dynamic modulus characteristics of saturated clays under variable confining pressure.” Can. Geotech. J. 54 (5): 729–735. https://doi.org/10.1139/cgj-2016-0441.
Gu, C., J. Wang, Y. Cai, and L. Guo. 2014. “Influence of cyclic loading history on small strain shear modulus of saturated clays.” Soil Dyn. Earthquake Eng. 66: 1–12. https://doi.org/10.1016/j.soildyn.2014.06.027.
Guo, L., J. Wang, Y. Cai, H. Liu, Y. Gao, and H. Sun. 2013. “Undrained deformation behavior of saturated soft clay under long-term cyclic loading.” Soil Dyn. Earthquake Eng. 50: 28–37. https://doi.org/10.1016/j.soildyn.2013.01.029.
Hanzalová, K., and K. Pavelka. 2013. “Documentation and virtual reconstruction of historical objects in Peru damaged by an earthquake and climatic events.” Adv. Geosci. 35: 67–71. https://doi.org/10.5194/adgeo-35-67-2013.
Haruhiko, S., M. Hiroshi, and B. Wonjin. 2008. “Cyclic shear strength of granulated blast furnace slag in the process of hardening.” Doboku Gakkai Ronbunshuu C 64 (1): 175–180. https://doi.org/10.2208/jscejc.64.175.
Hu, X., Y. Zhang, L. Guo, J. Wang, Y. Cai, H. Fu, and Y. Cai. 2018. “Cyclic behavior of saturated soft clay under stress path with bidirectional shear stresses.” Soil Dyn. Earthquake Eng. 104: 319–328. https://doi.org/10.1016/j.soildyn.2017.10.016.
Huang, Y., J. P. Wu, T. Z. Zhang, and D. N. Zhang. 2008. “Relocation of the M8.0 Wenchuan earthquake and its aftershock sequence.” Sci. China Ser. D: Earth Sci. 51 (12): 1703–1711. https://doi.org/10.1007/s11430-008-0135-z.
Idriss, I. M., R. Dobry, and R. D. Singh. 1978. “Nonlinear behavior of soft clays during cyclic loading.” J. Geotech. Eng. Div. 104 (12): 1427–1447. https://doi.org/10.1061/AJGEB6.0000727.
Kallioglou, P., T. Tika, and K. Pitilakis. 2008. “Shear modulus and damping ratio of cohesive soils.” J. Earthquake Eng. 12 (6): 879–913. https://doi.org/10.1080/13632460801888525.
Kammerer, A., J. Wu, M. Riemer, J. M. Pestana, and R. Seed. 2004. “Shear strain development in liquefaction soil under bi-directional loading conditions.” In Proc., 13th World Conf. on Earthquake Engineering. Vancouver, B.C.: 13 WCEE Secretariat.
Kammerer, A. M., J. M. Pestana, and R. B. Seed. 2003. “Behavior of monterey 0/30 sand under multidirectional loading conditions.” In Proc., 1st Japan-U.S. Workshop on Testing, Modeling, and Simulation, edited by J. A. Yamamuro, and J. Koseki. Reston, VA: ASCE.
Labib, M., Y. Moslehy, and A. Ayoub. 2013. “Behaviour of reinforced concrete membrane elements subjected to bidirectional shear loads.” ACI Struct. J. 110 (6): 1033–1043.
Li, J., C. Wang, and J. Liu. 2014. “Experimental study on bidirectional and torsional cyclic loading under different initial stress states on inland river clay.” Electron. J. Geotech. Eng. 19: 4227–4235.
Li, Y., Y. Yang, H.-S. Yu, and G. Roberts. 2018. “Principal stress rotation under bidirectional simple shear loadings.” KSCE J. Civ. Eng. 22 (1): 1651–1660. https://doi.org/10.1007/s12205-017-0822-4.
Liu, F., P. Luo, X. Hu, and Y. Zhang. 2018. “Effect of angle between initial and cyclic shear stress on behaviors of marine clay.” Mar. Georesour. Geotechnol. 36 (5): 617–624. https://doi.org/10.1080/1064119X.2017.1361489.
Lu, X., J. Qian, and M. Huang. 2015. “Study on the initiation of strain localization in soils by 3D non-coaxial plasticity.” In Proc., 10th Int. Workshop on Bifurcation and Degradation in Geomaterials Bifurcation and Degradation of Geomaterials in the New Millennium, edited by K. T. Chau, and J. Zhao. Springer Series in Geo-mechanics and Geoengineering, 221–228. Cham, Switzerland: Springer.
Martin, J. R., C. G. Olgun, J. K. Mitchell, and H. T. Durgunoglu. 2004. “High-modulus columns for liquefaction mitigation.” J. Geotech. Geoenviron. Eng. 130 (6): 561–571. https://doi.org/10.1061/(ASCE)1090-0241(2004)130:6(561).
Patino, H., A. Soriano, and J. Gonzalez. 2013. “Failure of a soft cohesive soil subjected to combined static and cyclic loading.” Soils Found. 53 (6): 910–922. https://doi.org/10.1016/j.sandf.2013.10.010.
Qian, J., J. Gu, X. Gu, M. Huang, and L. Mu. 2016a. “DEM analysis of rail-track ballast degradation under monotonic and cyclic loading.” Procedia Eng. 143: 1285–1292. https://doi.org/10.1016/j.proeng.2016.06.137.
Qian, J.-G., R.-Y. Zhou, and M.-S. Huang. 2016b. “Dynamic stress responses to high-speed moving load on elastic saturated semi-space ground.” Eng. Mech. 33 (3): 39–46.
Sangrey, D. A., G. Castro, S. J. Poulos, and J. W. France. 1978. “Cyclic loading of sands, silts and clays.” In Proc., of the Specialty Conf. on Earthquake Engineering and Soil Dynamics, edited by R. J. Krizek, A. Ansal, and Z. P. Bažant, 836–851. New York: ASCE.
Serff, N. 1976. Earthquake-induced deformation of earth dam. Rep. No. Eerc76. Berkeley, CA: Univ. of California.
Singh, R., D. Roy, and D. Das. 2007. “A correlation for permanent earthquake-induced deformation of earth embankments.” Eng. Geol. 90 (3–4): 174–185. https://doi.org/10.1016/j.enggeo.2007.01.002.
Soriano Pena, A., H. Patino, J. Gonzalez, and M. Valderrama. 2011. “Cyclic behaviour of saturated sands subject to previous horizontal shear stresses.” In Proc., 15th European Conf. on Soil Mechanics and Geotechnical Engineering, 275–280. Amsterdam, Netherlands: IOS Press.
Sun, L., C. Gu, and P. Wang. 2015a. “Effects of cyclic confining pressure on the deformation characteristics of natural soft clay.” Soil Dyn. Earthquake Eng. 78: 99–109. https://doi.org/10.1016/j.soildyn.2015.07.010.
Sun, L., Y.-Q. Cai, C. Gu, J. Wang, and L. Guo. 2015b. “Cyclic deformation behaviour of natural k0-consolidated soft clay under different stress paths.” J. Cent. South Univ. 22: 4828–4836. https://doi.org/10.1007/s11771-015-3034-4.
Sun, M., and G. Biscontin. 2018. “Development of pore pressure and shear strain in clean hostun sands under multi-directional loading paths.” In Proc., of Geoshanghai 2018 International Conf. Fundamentals of Soil Behaviours, edited by A. Zhou, J. Tao, X. Gu, L. Hu, 112–118. Singapore: Springer.
Sun, Q., Y. Cai, J. Chu, Q. Dong, and J. Wang. 2017. “Effect of variable confining pressure on cyclic behaviour of granular soil under triaxial tests.” Can. Geotech. J. 54 (6): 768–777. https://doi.org/10.1139/cgj-2016-0439.
Wang, D., and N. E. Abriak. 2015. “Compressibility behavior of dunkirk structured and reconstituted marine soils.” Mar. Georesour. Geotechnol. 33 (5): 419–428. https://doi.org/10.1080/1064119X.2014.950798.
Wang, J., L. Guo, Y. Cai, C. Xu, and C. Gu. 2013. “Strain and pore pressure development on soft marine clay in triaxial tests with a large number of cycles.” Ocean Eng. 74: 125–132. https://doi.org/10.1016/j.oceaneng.2013.10.005.
Wang, Y., S. Zhang, S. Yin, X. Liu, and X. Zhang. 2020. “Accumulated plastic strain behavior of granite residual soil under cycle loading.” Int. J. Geomech. 20 (11): 04020205. https://doi.org/10.1061/(ASCE)GM.1943-5622.0001850.
Wang, Y.-K., L. Guo, Y.-F. Gao, Y. Qiu, X.-Q. Hu, and Y. Zhang. 2016. “Anisotropic drained deformation behavior and shear strength of natural soft marine clay.” Mar. Georesour. Geotechnol. 34 (5): 493–502. https://doi.org/10.1080/1064119X.2015.1081653.
Wu, J., A. M. Kammerer, M. F. Riemer, R. B. Seed, and J. M. Pestana. 2004. “Laboratory study of liquefaction triggering criteria.” In Proc., 13th World Conference on Earthquake Engineering, 1–6. Vancouver, B.C.: 13 WCEE Secretariat.
Wu, T., Y. Cai, L. Guo, D. Ling, and J. Wang. 2017. “Influence of shear stress level on cyclic deformation behaviour of intact wenzhou soft clay under traffic loading.” Eng. Geol. 228: 61–70. https://doi.org/10.1016/j.enggeo.2017.06.013.
Xenaki, V. C., and G. A. Athanasopoulos. 2008. “Dynamic properties and liquefaction resistance of two soil materials in an earthfill dam—Laboratory test results.” Soil Dyn. Earthquake Eng. 28 (8): 605–620. https://doi.org/10.1016/j.soildyn.2007.10.001.
Xiao, J., C. H. Juang, K. Wei, and S. Xu. 2013. “Effects of principal stress rotation on the cumulative deformation of normally consolidated soft clay under subway traffic loading.” J. Geotech. Geoenviron. Eng. 140 (4): 04013046. https://doi.org/10.1061/(ASCE)GT.1943-5606.0001069.
Yasuhara, K., and K. H. Andersen. 1991. “Recompression of normally consolidated clay after cyclic loading.” Soils Found. 31 (1): 83–94. https://doi.org/10.3208/sandf1972.31.83.
Ye, G.-L., B. Ye, and F. Zhang. 2014. “Strength and dilatancy of overconsolidated clays in drained true triaxial tests.” J. Geotech. Geoenviron. Eng. 140 (4): 06013006. https://doi.org/10.1061/(ASCE)GT.1943-5606.0001060.
Yıldırım, H., and H. Erşan. 2007. “Settlements under consecutive series of cyclic loading.” Soil Dyn. Earthquake Eng. 27 (6): 577–585. https://doi.org/10.1016/j.soildyn.2006.10.007.
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© 2022 American Society of Civil Engineers.
History
Received: Jan 6, 2022
Accepted: Apr 9, 2022
Published online: Jul 21, 2022
Published in print: Oct 1, 2022
Discussion open until: Dec 21, 2022
ASCE Technical Topics:
- Clays
- Engineering fundamentals
- Geomechanics
- Geotechnical engineering
- Laboratory tests
- Material mechanics
- Material properties
- Materials engineering
- Saturated soils
- Shear strength
- Shear stress
- Shear tests
- Soft soils
- Soil dynamics
- Soil mechanics
- Soil properties
- Soil stress
- Soils (by type)
- Strength of materials
- Stress (by type)
- Structural analysis
- Structural engineering
- Tests (by type)
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