|Table of Contents|

[1] Liao Gongyun, Chen Huaqing, Sun Peixiang,. Numerical implementation of suction-dependent resilientmodulus constitutive model for subgrade granular material [J]. Journal of Southeast University (English Edition), 2018, (2): 251-258. [doi:10.3969/j.issn.1003-7985.2018.02.015]
Copy

Numerical implementation of suction-dependent resilientmodulus constitutive model for subgrade granular material()
Share:

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
Issue:
2018 2
Page:
251-258
Research Field:
Traffic and Transportation Engineering
Publishing date:
2018-06-20

Info

Title:
Numerical implementation of suction-dependent resilientmodulus constitutive model for subgrade granular material
Author(s):
Liao Gongyun Chen Huaqing Sun Peixiang
School of Transportation, Southeast University, Nanjing 210096, China
Keywords:
resilient modulus model suction pavement model finite element granular material
PACS:
U416.1
DOI:
10.3969/j.issn.1003-7985.2018.02.015
Abstract:
In order to investigate the suction-dependent properties of subgrade granular material and its effect on pavement responses, coupled hydro-mechanical simulations were conducted in Abaqus. A suction-dependent resilient modulus model was integrated into the commercial finite element(FE)code Abaqus by developing a user-defined material(UMAT)subroutine. The developed model was validated by triaxial test results under different suction conditions and good agreement was achieved. A three-dimensional(3D)FE pavement model was established and the suction-dependent properties of subgrade granular material was characterized by the developed constitutive model. Hydro-mechanical pavement responses subjected to three moisture states and the falling weight deflectometer(FWD)load were calculated. Simulation results reveal that the resilient modulus of subgrade granular material is sensitive to suction and stress states; high groundwater table decreases the overall resilient moduli of subgrade structure due to suction reduction, leading to the increase of the maximum surface deflection, the tensile strain at bottom of the surface layer, compressive strain on top of subgrade, and consequently, deterioration in pavement performance.

References:

[1] Hicks R G, Monismith C L. Factors influencing the resilient response of granular materials [J]. Highway Research Record, 1971(345): 15-31.
[2] Uzan J. Characterization of granular material [J]. Transportation Research Record, 1985, 1022: 52-59.
[3] Hjelmstad K D, Taciroglu E. Analysis and implementation of resilient modulus models for granular solids [J]. Journal of Engineering Mechanics, 2000, 126(8): 821-830. DOI:10.1061/(asce)0733-9399(2000)126:8(821).
[4] Kuo C M, Huang C W. Three-dimensional pavement analysis with nonlinear subgrade materials [J]. Journal of Materials in Civil Engineering, 2006, 18(4): 537-544. DOI:10.1061/(asce)0899-1561(2006)18:4(537).
[5] Wang H, Imad L A Q. Importance of nonlinear anisotropic modeling of granular base for predicting maximum viscoelastic pavement responses under moving vehicular loading [J]. Journal of Engineering Mechanics, 2013, 139(1): 29-38. DOI:10.1061/(asce)em.1943-7889.0000465.
[6] Li M Y, Wang H, Xu G J, et al. Finite element modeling and parametric analysis of viscoelastic and nonlinear pavement responses under dynamic FWD loading [J]. Construction and Building Materials, 2017, 141: 23-35. DOI:10.1016/j.conbuildmat.2017.02.096.
[7] Gu F, Luo X, Luo R, et al. Numerical modeling of geogrid-reinforced flexible pavement and corresponding validation using large-scale tank test [J]. Construction and Building Materials, 2016, 122: 214-230. DOI:10.1016/j.conbuildmat.2016.06.081.
[8] Claudia Z, Yugantha P, William H. Matric suction prediction model in new aashto mechanistic-empirical pavement design guide [J]. Transportation Research Record, 2009, 2101: 53-62. DOI:10.3141/2101-07.
[9] Khoury N, Zaman M. Correlation between resilient modulus, moisture variation, and soil suction for subgrade soils [J]. Transportation Research Record, 2004, 1874: 99-107. DOI:10.3141/1874-11.
[10] Han Z, Vanapalli S K. Model for predicting resilient modulus of unsaturated subgrade soil using soil-water characteristic curve [J]. Canadian Geotechnical Journal, 2015, 52(10): 1605-1619. DOI:10.1139/cgj-2014-0339.
[11] Liang R Y, Rabab’Ah S, Khasawneh M. Predicting moisture-dependent resilient modulus of cohesive soils using soil suction concept [J]. Journal of Transportation Engineering, 2008, 134(1): 34-40. DOI:10.1061/(asce)0733-947x(2008)134:1(34).
[12] Cary C E, Zapata C E. Resilient modulus for unsaturated unbound materials [J]. Road Materials and Pavement Design, 2011, 12(3): 615-638. DOI:10.1080/14680629.2011.9695263.
[13] Wang L J, Liu S H, Fu Z Z, et al. Coupled hydro-mechanical analysis of slope under rainfall using modified elasto-plastic model for unsaturated soils [J]. Journal of Central South University, 2015, 22(5): 1892-1900. DOI:10.1007/s11771-015-2708-2.
[14] Saad B. Analysis of excess water impact on the structural performance of flexible pavements [J]. International Journal of Pavement Engineering, 2014, 15(5): 409-426. DOI:10.1080/10298436.2013.790546.
[15] Hu R, Chen Y F, Liu H H, et al. A coupled two-phase fluid flow and elastoplastic deformation model for unsaturated soils: Theory, implementation, and application [J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2016, 40(7): 1023-1058. DOI:10.1002/nag.2473.
[16] Gu F, Luo X, Zhang Y, et al. Modeling of unsaturated granular materials in flexible pavements [C]// E3S Web of Conferences. Paris. France, 2016:20002. DOI:10.1051/e3sconf/20160920002.
[17] Bishop A W. The principle of effective stress [J]. Teknisk Ukeblad, 1959, 39: 859-863.
[18] Khalili N, Khabbaz M. Application of effective stress concept to unsaturated soils [C]// Proceedings of the 8th Australia New Zealand Conference on Geomechanics: Consolidating Knowledge. Hobart, Australia, 1999: 849–854.
[19] Komolvilas V, Kikumoto M. Fully undrained cyclic loading simulation on unsaturated soils using an elastoplastic model for unsaturated soils [C]// E3S Web of Conferences. Paris, France, 2016, 9: 17008. DOI:10.1051/e3sconf/20160917008.
[20] Fredlund D G, Xing A. Equations for the soil-water characteristic curve [J]. Canadian Geotechnical Journal, 1994, 31(4): 521-532. DOI:10.1139/t94-061.
[21] Seed H, Mitry F, Monosmith C, et al. Prediction of pavement deflection from laboratory repeated load tests. NCHRP Report No.35 [R]. Washington, DC: National Cooperative Highway Research Program, 1967.
[22] Inc. ARA. Guide for the mechanistic empirical design of new and rehabilitated pavement structures. Final report. NCHRP 1-37A [R]. Washington, DC: Transportation Board of the National Academies, 2004.
[23] Chen R. Experimental study and constitutive modelling of stress-dependent coupled hydraulic hysteresis and mechanical behaviour of an unsaturated soil [D]. Hong Kong: Civil Engineering Department, Hong Kong University of Science and Technology, 2007.
[24] Salour F, Erlingsson S. The influence of groundwater level on the structural behaviour of a pavement structure using fwd [C]//The Ninth International Conference on the Bearing Capacity of Roads, Railways, and Airfields. Trondheim, Norway, 2013: 25-27.

Memo

Memo:
Biography: Liao Gongyun(1975—), male, doctor, associate professor, lg@seu.edu.cn.
Foundation item: The Science and Technology Project of China Communications Construction(No.2015-ZJKJ-26).
Citation: Liao Gongyun, Chen Huaqing, Sun Peixiang.Numerical implementation of suction-dependent resilient modulus constitutive model for subgrade granular material[J].Journal of Southeast University(English Edition), 2018, 34(2):251-258.DOI:10.3969/j.issn.1003-7985.2018.02.015.
Last Update: 2018-06-20