• 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
JIN Lei, ZENG Ya-wu. Numerical simulation of large-scale triaxial tests on soil-rock mixture using DEM with three-dimensional flexible membrane boundary[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(12): 2296-2304. DOI: 10.11779/CJGE201812018
Citation: JIN Lei, ZENG Ya-wu. Numerical simulation of large-scale triaxial tests on soil-rock mixture using DEM with three-dimensional flexible membrane boundary[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(12): 2296-2304. DOI: 10.11779/CJGE201812018

Numerical simulation of large-scale triaxial tests on soil-rock mixture using DEM with three-dimensional flexible membrane boundary

More Information
  • Received Date: October 15, 2017
  • Published Date: December 24, 2018
  • In order to effectively simulate the mechanical behavior of lateral flexible latex film used in large-scale triaxial tests on soil-rock mixture (SRM), a feasible three-dimensional discrete element (3-D DEM) modeling method, named 3-D wall-arrangement method for the flexible membrane boundary, is proposed. In conjunction with the previously developed 3-D DEM modeling method for irregularly shaped rock blocks and SRM, the 3-D DEM models of SRM large-scale triaxial specimens are constructed. Then, the parallel-bond model is introduced to better simulate the cementation in cemented SRM, and the meso-mechanical parameters of numerical specimens are calibrated comprehensively by conducting a series of numerical large-scale triaxial tests. Finally, the deformation and failure processes and characteristics of numerical specimens of uncemented and cemented SRMs are analyzed and compared with the results of the corresponding laboratory experiments. The results show that the proposed modeling method for three-dimensional flexible membrane boundary presents many obvious advantages including simple principle, fewer parameters, convenient implemention and saving computing resources. The stress-strain characteristics of SRM, bulging deformation of uncemented SRM, deformation localization process and meso-structural characteristics of shear band of cemented SRM are all well reproduced by carrying out the DEM simulation of large-scale triaxial test on the constructed and calibrated SRM model with the developed three-dimensional flexible membrane boundary.
  • [1]
    丁秀丽, 李耀旭, 王新. 基于数字图像的土石混合体力学性质的颗粒流模拟[J]. 岩石力学与工程学报, 2010, 29(3): 477-484.
    (DING Xiu-li, LI Yao-xu, WANG Xin.Particle flow modeling mechanical properties of soil and rock mixtures based on digital image[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(3): 477-484. (in Chinese))
    [2]
    石崇, 王盛年, 刘琳, 等. 基于数字图像分析的冰水堆积体结构建模与力学参数研究[J]. 岩土力学, 2012, 33(11): 3393-3399.
    (SHI Chong, WANG Sheng-nian, LIU Lin, et al.Structure modeling and mechanical parameters research of outwash deposits based on digital image analysis[J]. Rock and Soil Mechanics, 2012, 33(11): 3393-3399. (in Chinese))
    [3]
    GRAZIANI A, ROSSINI C, ROTONDA T.Characterization and DEM modeling of shear zones at a large dam foundation[J]. International Journal of Geomechanics, 2012, 12(6): 648-664.
    [4]
    田湖南, 焦玉勇, 王浩, 等. 土石混合体力学特性的颗粒离散元双轴试验模拟研究[J]. 岩石力学与工程学报, 2015, 34(增刊1): 3564-3573.
    (TIAN Hu-nan, JIAO Yu-yong, WANG Hao, et al.Research on biaxial test of mechanical characteristics on soil-rock aggregate based on particle flow code simulation[J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(S1): 3564-3573. (in Chinese))
    [5]
    王新. 土石混合体力学特性影响因素及破坏机制研究[D]. 武汉: 长江科学院, 2010.
    (WANG Xin.Research on influence factors of mechanical characteristics and failure mechanism of soil-rock mixture[D]. Wuhan: Yangtze River Scientific Research Institute, 2010. (in Chinese))
    [6]
    金磊, 曾亚武, 李欢, 等. 基于不规则颗粒离散元的土石混合体大三轴数值模拟[J]. 岩土工程学报, 2015, 37(5): 829-838.
    (JIN Lei, ZENG Ya-wu, LI Huan, et al.Numerical simulation of large-scale triaxial tests on soil-rock mixture based on DEM of irregularly shaped particles[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(5): 829-838. (in Chinese))
    [7]
    JIN L, ZENG Y W, XIA L, et al.Experimental and numerical investigation of mechanical behaviors of cemented soil-rock mixture[J]. Geotechnical and Geological Engineering, 2017, 35(1): 337-354.
    [8]
    CHEUNG G, O’SULLIVAN C. Effective simulation of flexible lateral boundaries in two- and three-dimensional DEM simulations[J]. Particuology, 2008, 6(6): 483-500.
    [9]
    XU W J, HU L M, GAO W.Random generation of the meso-structure of a soil-rock mixture and its application in the study of the mechanical behavior in a landslide dam[J]. International Journal of Rock Mechanics & Mining Sciences, 2016, 86: 166-178.
    [10]
    金磊, 曾亚武, 叶阳, 等. 不规则颗粒及其集合体三维离散元建模方法的改进[J]. 岩土工程学报, 2017, 39(7): 1273-1281.
    (JIN Lei, ZENG Ya-wu, YE Yang, et al.Improving three-dimensional DEM modeling methods for irregularly shaped particles and their assembly[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(7): 1273-1281. (in Chinese))
    [11]
    Itasca Consulting Group, Inc. Universal distinct element code version 3.1[M]. Minneapolis: Itasca Consulting Group, 2006.
    [12]
    THORNTON C.Numerical simulations of deviatoric shear deformation of granular media[J]. Géotechnique, 2000, 50(1): 43-53.
    [13]
    WANG Y H, LEUNG S C.Characterization of cemented sand by experimental and numerical investigations[J]. Journal of Geotechnical & Geoenvironmental Engineering, 2008, 134(7): 992-1004.
    [14]
    蒋明镜, 张望城, 孙渝刚, 等. 理想胶结砂土力学特性及剪切带形成的离散元分析[J]. 岩土工程学报, 2012, 34(12): 2162-2169.
    (JIANG Ming-jing, ZHANG Wang-cheng, SUN Yu-gang, et al.Mechanical behavior and shear band formation in idealized cemented sands by DEM[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(12): 2162-2169. (in Chinese))
    [15]
    BONO D, MCDOWELL G R, WANATOWSKI D.Discrete element modelling of a flexible membrane for triaxial testing of granular material at high pressures[J]. Géotechnique Letters, 2012, 2(4): 199-203.
    [16]
    CIL M B, ALSHIBLI K A.3D analysis of kinematic behavior of granular materials in triaxial testing using DEM with flexible membrane boundary[J]. Acta Geotechnica, 2014, 9(2): 287-298.
    [17]
    ZHAO X L, EVANS T M.Discrete simulations of laboratory loading conditions[J]. International Journal of Geomechanics, 2009, 9(4): 169-178.
    [18]
    金磊, 曾亚武, 张森. 块石含量及形状对胶结土石混合体力学性能影响的大型三轴试验[J]. 岩土力学, 2017, 38(1): 141-149.
    (JIN Lei, ZENG Ya-wu, ZHANG Sen.Large-scale triaxial tests on effects of rock block proportion and shape on mechanical properties of cemented soil-rock mixture[J]. Rock and Soil Mechanics, 2017, 38(1): 141-149. (in Chinese))
    [19]
    POTYONDY D O, CUNDALL P A.A bonded-particle model for rock[J]. International Journal of Rock Mechanics & Mining Sciences, 2004, 41(8): 1329-1364.
  • Cited by

    Periodical cited type(9)

    1. 杨泽华,张高才,江帆,罗佳湘,张超. 不同水因素影响下土石混填体承载力学特性研究. 公路. 2024(06): 28-35 .
    2. 任明辉,赵光思,浦海,尹乾,王涛. 无黏性松散土石混合体剪切特性的结构效应及强度模型构建. 岩石力学与工程学报. 2024(07): 1707-1721 .
    3. 王辉,钮新强,马刚,周伟. 干湿循环作用下堆石料宏细观力学特性的离散元模拟研究. 岩土力学. 2024(S1): 665-676 .
    4. Zhou Wei,Hou Tianshun,Chen Ye,Wang Qi,Luo Yasheng,Zhang Yafei. Dynamic failure process of expanded polystyrene particle lightweight soil under cyclic loading using discrete element method. Earthquake Engineering and Engineering Vibration. 2024(04): 815-828 .
    5. 王治林,郑明明,夏敏,熊亮,吴祖锐,王凯. 不同边界对花岗岩三轴试验影响的三维离散元数值研究. 钻探工程. 2023(01): 150-158 .
    6. 崔熙灿,张凌凯,王建祥. 高堆石坝砂砾石料的细观参数反演及三轴试验模拟. 农业工程学报. 2022(04): 113-122 .
    7. 蒋成龙,许成顺,张小玲,王晓丽. 三维柔性边界构建方法及其对砾质土变形发展影响的离散元数值研究. 土木工程学报. 2021(05): 77-86 .
    8. 王恒通,王家全,唐毅,黄文勤. 组合Clump颗粒加筋砂土三轴剪切试验离散元模拟分析. 广西科技大学学报. 2021(03): 34-41 .
    9. 张强,汪小刚,赵宇飞,周家文,孟庆祥,周梦佳. 基于围压柔性加载的土石混合体大型三轴试验离散元模拟研究. 岩土工程学报. 2019(08): 1545-1554 . 本站查看

    Other cited types(26)

Catalog

    Article views (287) PDF downloads (191) Cited by(35)
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return