Abstract
Deformation of the subgrade bed layer under cyclic dynamic loading is one of the key factors to evaluate the operating performance of subgrade. To study the stress–strain characteristics of coarse-grained soil (CGS) under cyclic loading, a series of large-scale dynamic triaxial tests were carried out at different confining pressures and dynamic stress amplitudes. Results show that the variation of soil stiffness is closely related to cyclic number and confining pressure under cyclic loading. Backbone curve model is developed regarding confining pressure and cyclic number. Compared with the traditional backbone curve model, the proposed model can reflect the CGS stiffness hardening with the increasing of cyclic number and be used to determine the dynamic strength of CGS when the dynamic strain is less than the dynamic yield strain and to provide a reference for evaluating dynamic stress deformation stability for subgrade bed and design.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Wu S, Zhou J, Yang T (2001) Soil dynamics theory and calculation. China Architecture & Building Press, Beijing (2001)
Matsui T, Bahr M, Abe N (1992) Estimation of shear characteristic degradation and stress-strain relationship of saturated clays after cyclic loading. Soils Found 32(1):161–172
Yasuhara K, Murakami S, Song BW et al (2003) Post cyclic degradation of strength and stiffness for low plasticity silt. J Geotech Geoenviron Eng 129(8):756–769
Zhou J, Gong X (2000) Study on strain soften in saturated soft clay under cyclic loading. China Civil Eng J 32(5):62–68
Jun WANG, Yuan-qiang CAI, Chang-jie XU et al (2007) Study on strain softening model of saturated soft clay under cyclic loading. Chin J Rock Mechan Eng 26(8):1713–1719
Wu-ming LENG, Wen-jie LIU, Chun-yan ZHAO et al (2015) Experimental research on dynamic failure rules of compacted coarse-grained soil filling in heavy haul railway subgrade. Rock Soil Mech 36(3):640–646
Jiang G, Fang L, Wang Z et al (2010) Experimental study on dynamic strength and accumulated deformation characteristics of red-mudstone filling. Chin J Geotech Eng 32(1):124–129
Zhou W, Leng W, CAI D et al (2014) Analysis on characteristics of critical dynamic stress and accumulative deformation of coarse-grained soil subgrade filling under cyclic loading. J China Railw Soc 36(12):84–89
Liu X, Yang G, Fang W (2011) Critical dynamic stress of red clay and replacement thickness of ballastless track cutting bed of high-speed railway. Chin J Geotech Eng 33(3):348—353
Zhang Y, Kong L, Li X (2010) Dynamic backbone curve model of saturated soft clay under cyclic loading. Rock Soil Mech 31(6):1699–1704
Hardin BO, Drnevich VP (1972) Shear modulus and damping in soil measurement and parameter effect. J Soil Mech Found Eng Div 98(6):603–624
Ramberg W, Osgood WR (1943) Description of stress strain curves by three parameters. National Advisory Committee for Aeronautics, Washington DC
Jian-lin MA (2011) Soil mechanics. China Railway Publishing House, Beijing
The First Survey & Design Institute of China Railway (2016) TB10001-2016 code for design on subgrade of railway. China Railway Publishing House, Beijing (2016)
Huang B, Ding H, Chen Y (2011) Simulation of high-speed train load by dynamic triaxial tests. Chin J Geotech Eng 3(2):195–202
Ru-heng WANG, Bin JIA, An-fu DENG et al (2006) Dynamic triaxial testing study on dynamic characteristics of sandy pebble soil. Chin J Rock Mechan Eng 25(Supp. 2):4059–4064
Cai Y, Cao X (1996) Study of the critical dynamic stress and permanent strain of the subgrade-soil under the repeated load. J Southwest Jiaotong Univ 31(1):1–5
Gong Q, Liao C, ZHOU S et al (2001) Testing study of dynamic pore water pressure under train loading. Chin J Rock Mechan Eng 20(Supp. 1):1154–1157
Lei H, Jiang Y, Lu P et al (2007) Experimental study of dynamic stress-strain relation of structural soft soil under traffic load. Chin J Rock Mech Eng 27(Supp. 1), 3052–3057
Liu X, Yang G, Fang W (2011) Replacement thickness and dynamic stability of cutting bed under ballastless track of high-speed railway. Chin J Rock Mech Eng 30(Supp. 2):3534–3538
Xie D (2011) Soil dynamics. High Education Press, Beijing (2011)
Zhou J (1998) Properties of saturated clay under cyclic loading. Zhejiang University Press, Hangzhou
Acknowledgements
The authors appreciate the financial support from the National Natural Science Foundation of China (No.51878666), the Hunan Province Key Research and Development Plan Project (2017SK2212), and Research and Development Program of Science and Technology of China Railway Corporation (2016G003-B). However, the opinions expressed in the paper are solely those of the authors.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Nie, R., Dong, J., Leng, W., Zhou, W., Li, Y., Mei, H. (2020). Backbone Curve Model of Saturated Coarse-Grained Soil Under Train-Induced Cyclic Loading. In: Tutumluer, E., Chen, X., Xiao, Y. (eds) Advances in Environmental Vibration and Transportation Geodynamics. Lecture Notes in Civil Engineering, vol 66. Springer, Singapore. https://doi.org/10.1007/978-981-15-2349-6_49
Download citation
DOI: https://doi.org/10.1007/978-981-15-2349-6_49
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-15-2348-9
Online ISBN: 978-981-15-2349-6
eBook Packages: EngineeringEngineering (R0)