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Volume 37 Issue 3
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LIU Yang, WANG Cheng-lin, ZHANG Duo. Distribution and evolution of pore structure in 2D granular materials under biaxial compression[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(3): 494-503. DOI: 10.11779/CJGE201503013
Citation: LIU Yang, WANG Cheng-lin, ZHANG Duo. Distribution and evolution of pore structure in 2D granular materials under biaxial compression[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(3): 494-503. DOI: 10.11779/CJGE201503013
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Distribution and evolution of pore structure in 2D granular materials under biaxial compression

  • Department of Civil Engineering, University of Science and Technology Beijing, Beijing 100083, China

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  • Received Date: April 14, 2014
  • Published Date: March 23, 2015
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    • Abstract
  • The numerical models for ideal granular with different densities are established using the discrete element method to examine the distribution and evolution of pore structure in 2D granular materials under biaxial compression. The voronoi-Delaunay tessellations are adopted to divide the space into Voronoi regions and the irregularly shaped pore geometry is quantified with a best-fitting ellipse with the aid of the boundary-based method. The micro-mechanism of deformation of granular materials is analyzed according to the evolution of representative single pore. It is found that the pore-size distribution of numerical specimens exhibits a bimodal nature with two peaks occurring at certain pore radius. The pores in samples with different densities show different evolution rules with the increasing strain. The proportion of fine pore increases and that of the macro pore decreases in the loose samples. The evolution of pore structure in dense samples shows exactly the opposite evolution trend. The orientation of the pores is associated with loading direction and the initial density has little effect on it. The pores with long semi-axis along the horizontal direction collapse first, while the pores with long axis direction along the axial loading survive. Thus a more stable particle structure is created. The evolution of single pore structure indicates that strong force chain acts on macro pores. With the deformation of samples, macro pores are divided into a number of fine pores due to particle motion in loose samples and the fore chain becomes more uniform throughout the samples. In dense samples, the small-size pore structures decrease and fuse together to form large ones.
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  • [1]
    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. Mathematical model of soil structural property kernel problem of soil mechanics in 21CN[J]. Chinese Journal of Geotechnical Engineering, 1996, 18(1): 95-97. (in Chinese))
    [2]
    BREWER R. Fabric and mineral analysis of soils[M]. New York: Wiley, 1964.
    [3]
    ODA M. Initial fabrics and their relations to mechanical properties of granular materials[J]. Soils and Foundations, 1972, 12(1): 17-36.
    [4]
    TOVEY N K, KRINSLEY D H. Mapping of the orientation of fine-grained minerals in soils and sediments[J]. Bulletin of Engineering Geology and the Environment, 1992, 46(1): 93-101.
    [5]
    张 宏, 柳艳华, 杜东菊. 基于孔隙特征的天津滨海软黏土微观结构研究[J]. 同济大学学报(自然科学版), 2010, 38(10): 1444-1449. (ZHANG Hong, LIU Yan-hua, DU Dong-ju. Microstructure research based on pore characteristic of soft clay in Tianjin Binhai New District[J]. Journal of Tongji University (Natural Science), 2010, 38(10): 1444-1449. (in Chinese))
    [6]
    TYLER S W, WHEATCRAFT S W. Fractal scaling of soil particle -size distribution analysis and limitations[J]. Soil Science Society of America Journal, 1992, 56(2): 362-369.
    [7]
    MCBRATHNEY A B. Comments on “fractal distribution of soil aggregate size distribution calculated number and mass”[J]. Soil Science Society of America Journal, 1993, 57(5): 1393-1393.
    [8]
    KOZAK E, PACHEP SKY Y A. A modified number-based method for estimating fragmentation fractal dimensions of soils[J]. Soil Science Society of America Journal, 1996, 60(5): 1292-1297.
    [9]
    毛灵涛, 薛 茹, 安里千, 等. 软土孔隙微观结构的分形研究[J]. 中国矿业大学学报, 2005, 34(5): 600-604. (MAO Ling-tao, XUE Ru, AN Qian-li, et al. Fractal Approach on Soft Soil Porosity Microstructure[J]. Journal of China University of Mining & Technology, 2005, 34(5): 600-604. (in Chinese))
    [10]
    LAPIERRE C, LEROUEIL S, LOCAT J. Mercury intrusion and permeability of Louiseville clay[J]. Canadian Geotechnical Journal, 1990, 27(6): 761-773.
    [11]
    TANAKA H, SHIWAKOTI D R, OMUKAIN N, et al. Pore size distribution of clayey soils measured by mercury intrusion porosimetry and its relation to hydraulic conductivity[J]. Soils and Foundations, 2003, 43(6): 63-73.
    [12]
    NINJGARAV E, CHUNG S G, JANG W Y, et al. Pore size distribution of Pusan clay measured by mercury intrusion porosimetry[J]. KSCE Journal of Civil Engineering, 2007, 11(3): 133-139.
    [13]
    江福河. 压汞法对不同深度软土固结的微观孔隙特征研究[J]. 科学技术与工程, 2011, 31(11): 7701-7706. (JIANG Fu-he. The study of micro pore characteristics on different depth soft soil consolidation by mercury intrusion porosimetry[J]. Science Technology and Engineering, 2013, 31(11): 7701-7706. (in Chinese))
    [14]
    DIANOND S. Pore size distributions in clays[J]. Clays and Clay Minerals, 1970, 18(1): 7-23.
    [15]
    CARY J W, HAYDEN C W. An index for soil pore size distribution[J]. Geoderma, 1973, 9(4): 249-256.
    [16]
    COULON E, BRUANDA A. Effects of compaction on the porespace geometry in sandy soils[J]. Soil and Tillage Research, 1989, 15(1): 137-151.
    [17]
    GRIFFITHS F, JOSHI R. Change in pore size distribution due to consolidation of clays[J]. Géotechnique, 1989, 39(1): 159-167.
    [18]
    PENUMADU D, DEAN J. Compressibility effect in evaluating the pore-size distribution of kaolin clay using mercury intrusion porosimetry[J]. Canadian Geotechnical Journal, 2000, 37(2): 393-405.
    [19]
    LI X, ZHANG L M. Characterization of dual-structure pore-size distribution of soil[J]. Canadian Geotechnical Journal, 2009, 46(2): 129-141.
    [20]
    KOLIJI A, VULLIET L, LALOUI L. Structural characterization of unsaturated aggregated soil[J]. Canadian Geotechnical Journal, 2010, 47(3): 297-311.
    [21]
    SIMMS P, YANGFUL E. Predicting soil-water characteristic curves of compacted plastic soils from measured pore-size distributions[J]. Géotechnique, 2002, 52(4): 269-278.
    [22]
    胡 冉, 陈益峰, 周创兵, 等. 基于孔隙分布的变形土土水特征曲线模型[J]. 岩土工程学报, 2013, 35(8): 1451-1462. (HU Ran, CHEN Yi-feng, ZHOU Chuang-bing. A water retention curve model for deformable soils based on pore size distribution[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(8): 1451-1462. (in Chinese))
    [23]
    刘 洋, 周 健. 离散介质应变计算的非线性插值方法[J].岩土工程学报, 2006, 28(9): 1129-1133. (LIU Yang, ZHOU Jian. Nonlinear interpolation method for strain calculation in discrete media[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(9): 1129-1133. (in Chinese))
    [24]
    LI X, LI X-S. Micro-macro quantification of the internal structure of granular materials[J]. Journal of Engineering Mechanics, ASCE, 2009, 135(7): 641-56.
    [25]
    NGUYEN Ngoc-Son, MAGOARIEC Hélène, CAMBOU Bernard, et al. Analysis of structure and strain at the meso-scale in 2D granular materials[J]. International Journal of Solids and Structures, 2009, 46(17): 3257-3271.
    [26]
    CUNDALL P A, STRACK O D L. A discrete numerical model for granular assembles[J]. Géotechnique, 1979, 29(1): 47-65.
    [27]
    MULCHRONE K F, COUDHURY K R. Fitting an ellipse to an arbitrary shape: implications for strain analysis[J]. Journal of Structural Geology, 2004, 26(1): 143-53.
    [28]
    FITZGIBBON A, PILU M, FISHER R B. Direct least square fitting of ellipses[J]. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1999, 21(5): 476-80.
    [29]
    IWASHITA K, ODA M. Micro-deformation mechanism of shear banding process based on modified distinct element method[J]. Powder Technology, 2000, 109(1/2/3): 192-205.
    [30]
    THORNTON C, ANTONY S J. Quasi-static shear deformation of a soft particle system[J]. Powder Technology, 2000, 109(1/2/3): 179-191.
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