Advanced Search
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊
Volume 41 Issue S2
Turn off MathJax
Article Contents
Abstract
References
Related Articles
JIANG Ming-jing, SHI An-ning, LIU Jun, ZHANG Fu-guang. Three-dimensional distinct element analysis of mechanical properties of structured sands[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S2): 1-4. DOI: 10.11779/CJGE2019S2001
Citation: JIANG Ming-jing, SHI An-ning, LIU Jun, ZHANG Fu-guang. Three-dimensional distinct element analysis of mechanical properties of structured sands[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S2): 1-4. DOI: 10.11779/CJGE2019S2001
shu

Three-dimensional distinct element analysis of mechanical properties of structured sands

  • 1. Department of Civil Engineering, Tianjin University, Tianjin 300072, China;
    2. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China;
    3. State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;
    4. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;
    5. School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China

More Information
  • Received Date: April 29, 2019
  • Published Date: July 19, 2019
    Graphical Abstract
    • Abstract
  • The three-dimensional (3D) distinct element method (DEM) is employed to investigate the behaviours of cemented sands at the macro-scale in triaxial tests. A 3D bond contact model is implemented in a DEM commercial software (PFC3D) to simulate the triaxial tests on cemented specimens, and the simulated data are compared with the experimental results. Finally, the underlying mechanism behaviour is discussed at the macroscopic scale. The DEM results show that, the structured sands and uncemented loose sands have different macroscopic behaviours. In the conventional triaxial compression tests, the strain softening and the shear dilation are more pronounced in the structured sands with the increasing cement content or decreasing confining pressure. Under high confining pressures, the specimens show strain hardening and shear contraction. Both the cohesion and the peak friction angle increase with the increasing cement content under relative low-mean stresses. As the mean stress increases, the strength envelops for cemented sands converge gradually to those for uncemented geomaterials.
    • FullText(HTML)
    • References (13)
  • [1]
    MITCHELL J K, SOGA K.Fundamentals of soil behavior[M]. 3rd ed. New York: John Wiley and Sons, 2005: 5-33.
    [2]
    BROMS B B, BOMAN P.Lime columns-a new foundation method[J]. Journal of Geotechnical and Geoenvironmental Engineering, 1979, 105(4): 539-556.
    [3]
    CLAYTON C R I, HIGHT D W, HOPPER R J. Progressive destructuring of Bothkennar clay implications for sampling and reconsolidation procedures[J]. Géotechnique, 1992, 42(2): 219-239.
    [4]
    CUNDALL P A, STRACK O D L. Discrete numerical model for granular assemblies[J]. Géotechnique, 1979, 29(1): 47-65.
    [5]
    JIANG M J, Yu H S, LEROUEIL S.A simple and efficient approach to capturing bonding effect in naturally microstructured sands by discrete element method[J]. International Journal for Numerical Methods in Engineering, 2007, 69(6): 1158-1193.
    [6]
    JIANG M J, SHEN Z F, WANG J F.A novel three-dimensional contact model for granulates incorporating rolling and twisting resistances[J]. Computers & Geotechnics, 2015, 65: 147-163.
    [7]
    JIANG M J, ZHANG F G, THORNTON C.A simple three-dimensional distinct element modeling of the mechanical behavior of bonded sands[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2015, 39(16): 1791-1820.
    [8]
    WANG Y H, LEUNG S C.A particulate-scale investigation of cemented sand behavior[J]. Canadian Geotechnical Journal, 2008, 45(1): 29-44.
    [9]
    ROTTA G V, CONSOLI N C, PRIETTO P D M, et al. Isotropic yielding in an artificially cemented soil cured under stress[J]. Géotechnique, 2003, 53(5): 493-501.
    [10]
    JIANG M J, KONRAD J, LEROUEIL S.An efficient technique for generating homogeneous specimens for DEM studies[J]. Computers and Geotechnics, 2003, 30(7): 579-597.
    [11]
    LADE P V, OVERTON D D.Cementation effects in frictional materials[J]. Journal of Geotechnical Engineering, 1989, 115(10): 1373-1387.
    [12]
    CUCCOVILLO T, COOP M R.On the mechanics of structured sands[J]. Géotechnique, 1999, 49(6): 741-760.
    [13]
    LEROUEIL S, VAUGHAN P R.The general and congruent effects of structure in natural soils and weak rocks[J]. Géotechnique, 1990, 40(3): 467-48.
    • Related Articles

  • Related Articles

    [1]SHAO Longtan, GAO Rui, XIA Pingxin, GUO Xiaoxia, SUN Yanpu. Preliminary study on uniqueness of stress-strain envelope curves of sand[J]. Chinese Journal of Geotechnical Engineering, 2025, 47(2): 265-274. DOI: 10.11779/CJGE20230404
    [2]HAN Bo, LI Hang-zhou, SONG Li. Experimental study on nonlinear strength characteristics of intact loess[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S1): 117-121. DOI: 10.11779/CJGE2021S1021
    [3]XU Xiao, CAI Guo-qing, LI Jian, ZHAO Chen-gang, ZHAO Chun-lei. Peak strength characteristics and failure envelope model of unsaturated soils[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(7): 1211-1219. DOI: 10.11779/CJGE202007004
    [4]ZHU Sheng, SHEN Feng-sheng. Gradation characteristics and envelope curve design method for natural sandy gravel[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(9): 1738-1744. DOI: 10.11779/CJGE201909019
    [5]ZHU Jun-gao, SHI Jiang-wei, LUO Xue-hao, XU Jia-cheng. Experimental study on stress-strain-strength behavior of sand with different densities[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(2): 336-341. DOI: 10.11779/CJGE201602018
    [6]Tests on shear strength behavior and envelop of double lines of municipal solid waste[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(10).
    [7]LIAO Hongjian, HAN Bo, GAO Xiaoyu, Akaishi Masaru. The effect of discontinuous plane on stress-strain relationship of soft rocks[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(3): 362-365.
    [8]Zhang Huiming, Zeng Qiaoling. Steady state strength of sand:concepts and experiment[J]. Chinese Journal of Geotechnical Engineering, 1999, 21(2): 95-100.
    [9]Wu Xiongzhi, Zhao Nairu. Strength Model and Stress-Strain Behavior of Reinforced Soil[J]. Chinese Journal of Geotechnical Engineering, 1992, 14(S1): 80-87.
    [10]Bai Shutian, Zhou Xiaoguang. Strength and Stress-Strain Relationship of Rockflll under Plane Strain Condition[J]. Chinese Journal of Geotechnical Engineering, 1991, 13(4): 33-40.
    • Supplements (0)

Catalog

    Get Citation
    PDF
    XML
    Article views (329) PDF downloads (192) Cited by()
    Related
    Copyright © 2010 Editorial By Chinese Journal of Geotechnical Engineering 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return