Abstract
Most landslides in Three Gorges Reservoir (TGR) area (China) contain coarse-graded soil forming the sliding zone. Conventional laboratory tests with small size samples are not suitable to study the mechanical behavior while large-scale triaxial tests and field tests are often too costly and time-consuming. In the paper, a DEM approach is described for modeling coarse-graded soils. DEM samples are generated based on 2D thin-section of X-ray CT images of intact coarse-graded samples. A series of DEM biaxial compression tests are then conducted to investigate the mechanical behaviors of a coarse-graded sample.
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
Yue, Z., Chen, S., Tham, L.: Finite element modeling of geomaterials using digital image processing. Comput. Geotech. 30(5), 375–397 (2003)
Kuhn, M.R.: A flexible boundary for three-dimensional DEM particle assemblies. Eng. Comput. MCB UP Ltd. 12(2), 175–183 (1995)
Jiang, M., Zhu, H., Li, X.: Strain localization analyses of idealized sands in biaxial tests by distinct element method. Front. Archit. Civil Eng. China 4(2), 208–222 (2010)
Jiang, J.W., Xiang, W., Rohn, J., Schleier, M., Pan, J., Zhang, W.: Research on mechanical parameters of coarse-grained sliding soil based on CT scanning and numerical tests. Landslides 13(5), 1261–1272 (2016)
Xu, W.J., Hu, R., Tan, R.: Some geomechanical properties of soil-rock mixtures in the Hutiao Gorge area China. Géotechnique 57(3), 255–264 (2007)
Xu, W.J., Yue, Z.Q., Hu, R.: Study on the mesostructure and mesomechanical characteristics of the soil-rock mixture using digital image processing based finite element method. Int. J. Rock Mech. Min. Sci. 45(5), 749–762 (2008)
Acknowledgements
This work was funded by the National Natural Science Foundation of China (No. 41772304) and the project “GEORAMP” within the RISE programme of Horizon 2020 under grant number 645665.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Switzerland AG
About this paper
Cite this paper
Wang, S., Wu, W., Xiang, W., Cui, D. (2018). DEM Simulation of Coarse-Grained Soil in Slip Zone. In: Wu, W., Yu, HS. (eds) Proceedings of China-Europe Conference on Geotechnical Engineering. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-319-97112-4_52
Download citation
DOI: https://doi.org/10.1007/978-3-319-97112-4_52
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-97111-7
Online ISBN: 978-3-319-97112-4
eBook Packages: EngineeringEngineering (R0)