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Abstrakty
Purpose: The soil’s anisotropy induced by stress (i.e. stress induced anisotropy) has an important effect on the behavior of soil. This paper focuses on analyzing the anisotropy of remolded Shantou soft clay under compression stress path. Design/methodology/approach: Experiments were executed by using three axle experimental instruments. The data obtained from the plain strain tests were analyzed and the relationship between stress and strain was calculated by using the modified Duncan- Chang and Lade-Duncan models. The models were modified under the condition of plain strain and cohesion. Findings: It was concluded that in complex stress path conditions, the conventional triaxial tests may not fully reflect the actual stress of soil and its response in the Duncan-Chang and Lade-Duncan models. Research limitations/implications: The formulation of Mohr-Coulomb failure criterion in the plasticity framework is quite diffcult. As a result, dilatancy cannot be described. The properties of soil in unload or drained conditions remain to be part of further investigated. Practical implications: Based upon the two stiffness parameters, the modified Duncan- Chang model has captured the soil behaviour in a very conformable way and is recommened for practical modeling. These constitutive models of soil are widely used in the numerical analyses of soil structure such as embankments. Originality/value: Duncan-Chang and Lade-Duncan models widely used in engineering practices are modes based on conventional triaxial cases. Both models have have some inherent limitations to represent the stress-strain characteristics of soils, such as shear-induced dilatancy and stress path dependency and required corrections. In this investigation, the tests are carried out in undrained conditions. It is related to the properties of soil in load conditions.
Wydawca
Rocznik
Tom
Strony
56--64
Opis fizyczny
Bibliogr. 29 poz.
Twórcy
autor
- Department of Civil and Environmental Engineering, Shantou University, China
autor
- Department of Civil and Environmental Engineering, Shantou University, China
autor
- Department of Civil and Environmental Engineering, Shantou University, China
autor
- Department of Civil Engineering, National Institute of Technology Hamirpur, Hamirpur, India
Bibliografia
- [1] F.-C. Teng, C.-Y. Ou, P.-G. Hsieh, Measurements and numerical simulations of inherent stiffness anisotropy in soft Taipei clay, Journal of Geotechnical and Geoen- vironmental Engineering 140/1 (2014) 237-250. DOI: https://doi.org/10.1061/(ASCE)GT.1943-5606.0001010
- [2] N.M. Rodriguez, P.V. Lade, True triaxial tests on cross- anisotropic deposits of fine Nevada sand, International Journal of Geomechanics 13/6 (2013) 779-793. DOI: https://doi.org/10.1061/(ASCE)GM. 1943-5622.0000282
- [3] H. Toyota, A. Susami, S. Takada, Anisotropy of undrained shear strength induced by K 0 consolidation and swelling in cohesive soils, International Journal of Geomechanics 14/4 (2014) 04014019. DOI: https://doi.org/10.1061/(ASCE)GM. 1943-5622.0000344
- [4] Y. Wang, Y. Gao, B. Li, L. Guo, Y. Cai, A.H. Mahfouz, Influence of initial state and intermediate principal stress on undrained behavior of soft clay during pure principal stress rotation, Acta Geotechnica 14/5 (2019) 1379¬1401. DOI: https://doi.org/10.1007/s11440-018-0735-5
- [5] J.Qian, Z. Du, X. Lu, X. Gu, M. Huang, Effects of principal stress rotation on stress-strain behaviors of saturated clay under traffic-load-induced stress path, Soils and Foundations 59/1 (2019) 41-55. DOI: https://doi.org/10.1016/j.sandf.2018.08.014
- [6] Y. Chen, F. Marinelli, G. Buscarnera, A rotational hardening model capturing undrained failure in anisotropic soft clays, Indian Geotechnical Journal 49/4 (2019) 369-380. DOI: https://doi.org/10.1007/s40098- 018-0339-x
- [7] Y. Xiao, Z. Zhang, J. Wang, Granular hyperelasticity with inherent and stress-induced anisotropy, Acta Geotechnica 15/3 (2020) 671-680. DOI: https://doi.org/10.1007/s11440-019-00768-z
- [8] J. Wang, D. Feng, L. Guo, H. Fu, Y. Cai, T. Wu, L. Shi, Anisotropic and Noncoaxial Behavior of K 0-Consoli- dated Soft Clays under Stress Paths with Principal Stress Rotation, Journal of Geotechnical and Geoen- vironmental Engineering 145/9 (2019) 04019036. DOI: https://doi.org/10.1061/(asce)gt.1943-5606.0002103
- [9] H.I. Ling, C. Hung, V.N. Kaliakin, Application of an enhanced anisotropic bounding surface model in simulating deep excavations in clays, Journal of Geotechnical and Geoenvironmental Engineering 142/11 (2016) 04016065. DOI: https://doi.org/10.1061/(ASCE)GT.1943-5606.0001533
- [10] Y.-K. Wang, L. Guo, Y.-F. Gao, Y. Qiu, X.-Q. Hu, Y. Zhang, Anisotropic drained deformation behavior and shear strength of natural soft marine clay, Marine Georesources & Geotechnology 34/5 (2016) 493-502. DOI: https://doi.org/10.1080/1064119X.2015.1081653
- [11] Z.-Y. Yin, C.S. Chang, M. Karstunen, P.-Y. Hicher, An anisotropic elastic-viscoplastic model for soft clays, International Journal of Solids and Structures 47/5 (2010) 665-677. DOI: https://doi.org/10.1016/j.ijsolstr.2009.11.004
- [12] D. Maśm, J. Rott, Small strain stiffness anisotropy of natural sedimentary clays: review and a model, Acta Geotechnica 9/2 (2014) 299-312. DOI: https://doi.org/10.1007/s11440-013-0271-2
- [13] J.M. Duncan, Anisotropy and stress reorientation in clay, Journal of the Soil Mechanics and Foundations Division 92/5 (1966) 21-50.
- [14] H. Toyota, S. Takada, A. Susami, Mechanical properties of saturated and unsaturated cohesive soils with stress- induced anisotropy, Geotechnique 68 (2017) 883-892. DOI: https://doi.org/10.1680/jgeot.17.p.018
- [15] R.J. Finno, X. Tu, Selected topics in numerical simulation of supported excavations, Proceedings of the Internatio¬nal Conference on Numerical Simulation of Construction Processes in Geotechnical Engineering for Urban Envi- ronment - Numerical Modelling of Construction Processes in Geotechnical Engineering for Urban Environment, Bochum, 2006, 3-19.
- [16] A. Sawicki, J. Mierczyński, A. Mikos, J. Sławińska, Liquefaction resistance of a granular soil containing some admixtures of fines, Archives of Hydro-Engineering and Environmental Mechanics 62/1-2 (2015) 53-64. DOI: https://doi.org/10.1515/heem-2015-0019
- [17] J.H. Yien, C.M. Cheng, W.H. Kumruzzaman, New mixed boundary, true triaxial loading device for testing three-dimensional stress-strain-strength behavior of geomaterials, Canadian Geotechnical Journal 47/1 (2009) 1-15. DOI: https://doi.org/10.1139/T09-075
- [18] M.M. Kirkgard, P.V. Lade, Anisotropic three- dimensional behavior of a normally Consolidated clay, Canadian Geotechnical Journal 30/5 (1993) 848-858. DOI: https://doi.org/10.1139/t93-075
- [19] Q. Wang, P.V. Lade, Shear banding in true triaxial tests and its effect on failure in sand, Journal of Engineering Mechanics 127/8 (2001) 754-761. DOI: https://doi.org/10.1061/(ASCE)0733-9399(2001)127:8(754)
- [20] S.J. Wheeler, A. Naatanen, M. Karstunen, M. Lojander, An anisotropic elastoplastic model for soft clays, Canadian Geotechnical Journal 40/2 (2003) 403-418. DOI: https://doi.org/10.1139/t02-119
- [21] T.M. Thu, H. Rahardjo, E.-C. Leong, Shear strength and pore-water pressure characteristics during constant water content triaxial tests, Journal of Geotechnical and Geoenvironmental Engineering 132/3 (2006) 411-419. DOI: https://doi.org/10.1061/(ASCE) 1090-0241(2006)132:3(411)
- [22] C. Gu, Y. Wang, Y. Cai, J. Wang, Deformation charac-teristics of saturated clay in three-dimensional cyclic stress state, Canadian Geotechnical Journal 56/12 (2019) 1789-1802. DOI: https://doi.org/10.1139/cgj- 2018-0634
- [23] Q. Jiang, J.-m. Zhu, Y.-p. Yao, Application of Lade- Duncan failure criterion to calculation of bearing capacity of foundation, Chinese Journal of Rock Mechanics and Engineering 24/18 (2005) 3262-3265.
- [24] L. Ding, The plain strain strength formula of soil based on the SMP criterion. Journal of Geotechnical Mechanics (2000) 390-393.
- [25] Y. Hong, L. Wang, J. Zhang, Z. Gao, 3D elastoplastic model for fine-grained gassy soil considering the gas- dependent yield surface shape and stress-dilatancy, Journal of Engineering Mechanics 146/5 (2020) 04020037. DOI: https://doi.org/10.1061/(ASCE)EM. 1943-7889.0001760
- [26] K.S. Ti, B.B.K. Huat, J. Noorzaei, M.S. Jaafar, G.S. Sew, A review of basic soil constitutive models for geotechnical application, Electronic Journal of Geo-technical Engineering 14 (2009) 1-18.
- [27] Z. Li, L. Wang, Y. Lu, W. Li, K. Wang, H. Fan, Experimental investigation on true triaxial deformation and progressive damage behaviour of sandstone, Scientific Reports 9/1 (2019) 3386. DOI: https://doi.org/10.1038/s41598-019-39816-9
- [28] Q. Yang, W.-M. Leng, S. Zhang, R.-S. Nie, Experi- mental Study on Compression Modulus of Sandy Soil, Proceedings of the 2nd International Conference Challenges and Recent Advances in Geotechnical and Seismic Research and Practices "IACGE 2013", Chengdu, China, 2013, 287-296. DOI: https://doi.org/10.1061/9780784413128.035
- [29] C. Gu, Y. Wang, Y. Cui, Y. Cai, J. Wang, One-way cyclic behavior of saturated clay in 3D stress state, Journal of Geotechnical and Geoenvironmental Engineering 145/10 (2019) 04019077. DOI: https://doi.org/10.1061/(ASCE)GT.1943-5606.0002137
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-ff13453b-22ba-47d9-a342-043ffe872101