• 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
JIANG Ming-jing, LIAO You-bin, LIU Wei, TAN Ya-fei-ou. DEM simulation of mechanical behaviour of cemented sand under normal distribution of cementation strength[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(z2): 1-6. DOI: 10.11779/CJGE2016S2001
Citation: JIANG Ming-jing, LIAO You-bin, LIU Wei, TAN Ya-fei-ou. DEM simulation of mechanical behaviour of cemented sand under normal distribution of cementation strength[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(z2): 1-6. DOI: 10.11779/CJGE2016S2001

DEM simulation of mechanical behaviour of cemented sand under normal distribution of cementation strength

More Information
  • Received Date: May 18, 2016
  • Published Date: October 19, 2016
  • Influenced by construction technology, quality and environment in the construction process of rock-fill concrete gravity dam, natural cementation sands may have different cementation strengths between the sand particles. By using the microscopic model BPM of PFC3D, the distribution of the bond strength in cemented sand is defined as the normal distribution to study the mechanical properties of cemented soil with different bond strengths. The mechanical properties of cemented sands under different contents and variances are analyzed. The results show the strain softening and shear dilatation characteristics. And with the increase of cement contents, softening and dilatancy increase. When the deviatoric stress reaches the peak value, with the increase of the axial strain, the change of the volume is reduced by the shear contraction. The volumetric strain is changed from the shear shrinkage to dilatancy. With the assumption that the cementing of sample under the normal distribution cementation strength, the peak stress linearly grows with cement content, but charge of the normal distribution variances has a little influence on the cementation of strength.
  • [1]
    黄棉松, 周 虎, 安雪晖, 等. 堆石混凝土综合性能的试验研究[J]. 建筑材料学报, 2008, 11(2): 206-211. (HUANG Mian-song, ZHOU Hu, AN Xue-hui, et al. A pilot study on integrated properties of rock-filled concrete[J]. Journal of Building Materials, 2008, 11(2): 206-211. (in Chinese))
    [2]
    刘恩龙, 沈珠江. 人工制备结构性土力学特性试验研究[J]. 岩土力学, 2007, 28(4): 679-683. (LIU En-long, SHEN Zhu-jiang. Experimental study on mechanical properties of artificially structured soils[J]. Rock and Soil Mechanics, 2007, 28(4): 679-683. (in Chinese))
    [3]
    蒋明镜, 白闰平, 刘静德, 等. 岩石微观颗粒接触特性的试验研究[J]. 岩石力学与工程学报, 2013, 32(6): 1121-1128. (JIANG Ming-jing, BAI Run-ping, LIU Jing-de, et al. Experimental study of inter-granular particles bonding behaviors for rock microstructure[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(6): 1121-1128. (in Chinese))
    [4]
    HYODO M, NAKATA Y, YOSHIMOTO N, et al. Basic research on the mechanical behavior of methane hydrate-sediments mixture[J]. Soils and Foundations, 2005, 45(1): 75-85.
    [5]
    蒋明镜, 孙渝刚, 李立青. 复杂应力下两种胶结颗粒微观力学模型的试验研究[J]. 岩土工程学报, 2011, 33(3): 354-360. (JIANG Ming-jing, SUN Yu-gang, LI Li-qing. Experimental study on micro-mechanical model for two different bonded granules under complex stress conditions[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 33(3): 354-360. (in Chinese))
    [6]
    沈珠江. 土体结构性的数学模型——21 世纪土力学的核心问题[J]. 岩土工程学报, 1996, 18(1): 95-97. (SHEN Zhu-jiang. The mathematical model of soil structure[J]. Chinese Journal of Geotechnical Engineering 1996, 18(1): 95-97. (in Chinese))
    [7]
    CUCCOVILLO T, COOP M R. Yielding and pre-failure deformation of structured sands[J]. Géotechnique, 1997, 47(3): 491-508.
    [8]
    CUCCOVILLO T, COOP M R. On the mechanics of structured sands[J]. Géotechnique, 1999, 49(6): 741-760.
    [9]
    ISMAIL M A, JOER H A, SIM W H, et al. Effect of cement type on shear behavior of cemented calcareous soil[J]. International Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2002, 128(6): 520-529
    [10]
    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.
    [11]
    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, 12(34): 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 Rock Mechanics and Engineering, 2012, 12(34): 2162-2169. (in Chinese))
    [12]
    JIANG M J, KONRAD J M, LEROUEIL S. An efficient technique for generating homogeneous specimens for DEM studies[J]. Computers and Geotechnics, 2003, 30(7): 579-597.
  • Related Articles

    [1]YANG Xu, CAI Guoqing, LIU Qianqian, LI Fengzeng, SHAN Yepeng. Experimental study on influences of wetting-drying cycles on microstructure and water-retention characteristics of clay[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(S2): 11-15. DOI: 10.11779/CJGE2024S20006
    [2]ZHANG Jingyu, ZHAN Runhe, DENG Huafeng, LI Jianlin, WANG Wendong, WAN Liangpeng. Repeated shear mechanical properties and constitutive model of jointed sandstone under heat-wet cycles[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(10): 2148-2157. DOI: 10.11779/CJGE20230652
    [3]WANG Shi-ji, WANG Xiao-qi, LI Da, LI Xian, LIANG Guang-chuan, MUHAMMAD Qayyum Hamka. Evolution of fissures and bivariate-bimodal soil-water characteristic curves of expansive soil under drying-wetting cycles[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S1): 58-63. DOI: 10.11779/CJGE2021S1011
    [4]ZHAO Gui-tao, HAN Zhong, ZOU Wei-lie, WANG Xie-qun. Influences of drying-wetting-freeze-thaw cycles on soil-water and shrinkage characteristics of expansive soil[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(6): 1139-1146. DOI: 10.11779/CJGE202106018
    [5]CAI Zheng-yin, ZHU Rui, HUANG Ying-hao, ZHANG Chen, GUO Wan-li. Centrifugal model tests on deterioration process of canal under cyclic action of coupling wetting-drying and freeze-thaw[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(10): 1773-1782. DOI: 10.11779/CJGE202010001
    [6]HUANG Ying-hao, CAI Zheng-yin, ZHU Rui, ZHANG Chen, GUO Wan-li, ZHU Xun, CHEN Yong. Development of centrifuge model test equipment for canals in seasonal frozen areas under cyclic action of wetting-drying and freeze-thaw[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(7): 1181-1188. DOI: 10.11779/CJGE202007001
    [7]CAI Zheng-yin, ZHU Xun, HUANG Ying-hao, ZHANG Chen. Evolution rules of fissures in expansive soils under cyclic action of coupling wetting-drying and freeze-thaw[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(8): 1381-1389. DOI: 10.11779/CJGE201908001
    [8]WANG Zhang-qiong, YAN E-chuan. Influence of material composition and structural characteristics of rock on freeze-thaw damage and deterioration of schist[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(zk2): 86-90. DOI: 10.11779/CJGE2015S2018
    [9]JIANG Ji-wei, XIANG Wei, ZENG Wen, JOACHIM Rohn, YAO Yuan. Water-rock (soil) interaction mechanism of Huangtupo riverside landslide in Three Gorges Reservoir[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(7): 1209-1216.
    [10]Influence of repeated drying and wetting cycles on mechanical behaviors of unsaturated soil[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(1).
  • Cited by

    Periodical cited type(7)

    1. 廖洁,刘斯宏,徐思远,樊科伟,于博文. 土工袋技术在乡村公路软基加固中的应用研究. 公路. 2024(06): 52-61 .
    2. 李钒,林国兵,王雅华,樊科伟. 面板对土工袋挡土墙工作性状影响的足尺试验研究. 水电能源科学. 2023(06): 133-136 .
    3. 关帅,孙嘉辉,刘越,王波,黄泽华. 纤维增强复合材料(FRP)锚索性能及其工程应用. 市政技术. 2023(08): 166-179 .
    4. 曹旻昊. 淤泥质袋装土挡墙技术研究和应用分析. 现代交通技术. 2023(05): 93-96 .
    5. 文华,杨青青,吴学宇,付文涛. 稳定固化土重力式挡土墙承载特性研究. 施工技术(中英文). 2022(20): 70-76 .
    6. 黄英豪,吴敏,陈永,王硕,王文翀,武亚军. 絮凝技术在疏浚淤泥脱水处治中的研究进展. 水道港口. 2022(06): 802-812 .
    7. 中国路基工程学术研究综述·2021. 中国公路学报. 2021(03): 1-49 .

    Other cited types(4)

Catalog

    Article views (461) PDF downloads (392) Cited by(11)
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return