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Volume 47 Issue 5
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HU Fenghui, FANG Xiangwei, SHEN Chunni, YAO Zhihua, CHEN Zhenghan. Evolution characteristics of mesoscopic pore structure for coral sand samples based on CT-triaxial tests[J]. Chinese Journal of Geotechnical Engineering, 2025, 47(5): 936-947. DOI: 10.11779/CJGE20231224
Citation: HU Fenghui, FANG Xiangwei, SHEN Chunni, YAO Zhihua, CHEN Zhenghan. Evolution characteristics of mesoscopic pore structure for coral sand samples based on CT-triaxial tests[J]. Chinese Journal of Geotechnical Engineering, 2025, 47(5): 936-947. DOI: 10.11779/CJGE20231224
shu

Evolution characteristics of mesoscopic pore structure for coral sand samples based on CT-triaxial tests

  • 1.

    School of Civil Engineering, Chongqing University, Chongqing 400045, China

  • 2.

    School of Civil and Hydraulic Engineering, Chongqing University of Science and Technology, Chongqing 401331, China

  • 3.

    Department of Airdrome Construction Engineering, Air Force Engineering University, Xi'an 710038, China

  • 4.

    Department of Military Installation, Army Logistics University, Chongqing 401311, China

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  • Received Date: December 13, 2023
  • Available Online: September 28, 2024
    Graphical Abstract
    • Abstract
  • The evolution characteristics of pore structure during loading have an important influence on the mechanics of coral sand. Using the self-developed high-pressure geotechnical CT-triaxial apparatus, the triaxial consolidated tests on the coral sand with a confining pressure of 100~1600 kPa are carried out under the premise of ensuring the conventional size of samples. The real-time CT scanning of the coral sand samples is carried out during loading. The shape parameters of pores like sphericity and anisotropy are analyzed according to the CT images, and the evolution characteristics of pore structure for the coral sand are analyzed by the digital volume correlation method. The results show that the evolution of pore structure for coral sand samples during the loading process can be roughly divided into three stages under the influences of confining pressure and particle breakage. That is, the loading end (section Ⅰ) is mainly affected by compression, the porosity decreases because of the particle breakage and movement, and the local strain is mainly negative. While in the middle and lower parts of the samples (sections Ⅱ and Ⅲ), the combination of slipping particles and increasing porosity macroscopically shows dilatation at low confining pressure, and the local strain shows positive strain. However, the high confining pressure and particle breakage inhibit dilatation. It is explained that the shear zone of the sand samples often occurs in the middle and lower parts of the samples at low confining pressure. During loading, the pore shape of the samples becomes closer to spherical and isotropic with the increase of confining pressure, and the deformation of the samples increases with the axial strain and gradually decreases under the constraint of high confining pressure. The pore volume and local strain of the samples are gradually stabilized during loading. The research results are of great significance for understanding the engineering mechanical properties of the coral sand.
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    • References (26)
  • [1]
    吴杨, 崔杰, 李能, 等. 岛礁吹填珊瑚砂力学行为与颗粒破碎特性试验研究[J]. 岩土力学, 2020, 41(10): 3181-3191.

    WU Yang, CUI Jie, LI Neng, et al. Experimental study on the mechanical behavior and particle breakage characteristics of hydraulic filled coral sand on a coral reef island in the South China Sea[J]. Rock and Soil Mechanics, 2020, 41(10): 3181-3191. (in Chinese)
    [2]
    蔡正银, 陈元义, 朱洵, 等. 级配对珊瑚砂颗粒破碎与变形特性的影响[J]. 岩土工程学报, 2023, 45(4): 661-670. doi: 10.11779/CJGE20220884

    CAI Zhengyin, CHEN Yuanyi, ZHU Xun, et al. Influences of gradation on particle breakage and deformation characteristics of coral sand[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(4): 661-670. (in Chinese) doi: 10.11779/CJGE20220884
    [3]
    FANG X W, YANG Y, CHEN Z, et al. Influence of fiber content and length on engineering properties of MICP-treated coral sand[J]. Geomicrobiology Journal, 2020, 37(6): 582-594. doi: 10.1080/01490451.2020.1743392
    [4]
    HU F H, FANG X W, YAO Z H, et al. Experiment and discrete element modeling of particle breakage in coral sand under triaxial compression conditions[J]. Marine Georesources & Geotechnology, 2023, 41(2): 142-151.
    [5]
    陈海洋. 钙质砂的内孔隙研究[D]. 武汉: 中国科学院研究生院(武汉岩土力学研究所), 2005.

    CHEN Haiyang. Study on Internal Porosity of Calcareous Sand[D]. Wuhan: Graduate University of Chinese Academy of Sciences (Wuhan Institute of Rock and Soil Mechanics), 2005. (in Chinese)
    [6]
    蒋明镜, 吴迪, 曹培, 等. 基于SEM图片的钙质砂连通孔隙分析[J]. 岩土工程学报, 2017, 39(增刊1): 1-5. doi: 10.11779/CJGE2017S1001

    JIANG Mingjing, WU Di, CAO Pei, et al. Connected pore analysis of calcareous sand based on SEM images[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(S1): 1-5. (in Chinese) doi: 10.11779/CJGE2017S1001
    [7]
    周博, 库泉, 吕珂臻, 等. 钙质砂颗粒内孔隙三维表征[J]. 天津大学学报(自然科学与工程技术版), 2019, 52(增刊1): 41-48.

    ZHOU Bo, KU Quan, LÜ Kezhen, et al. Three-dimensional characterization of pores in calcareous sand particles[J]. Journal of Tianjin University (Natural Science And Engineering Technology Edition), 2019, 52(S1): 41-48. (in Chinese)
    [8]
    程壮, 王剑锋. 用于颗粒土微观力学行为试验的微型三轴试验仪[J]. 岩土力学, 2018, 39(3): 1123-1129.

    CHENG Zhuang, WANG Jianfeng. A mini-triaxial apparatus for testing of micro-scale mechanical behavior of granular soils[J]. Rock and Soil Mechanics, 2018, 39(3): 1123-1129. (in Chinese)
    [9]
    蒋明镜, 李光帅, 曹培, 等. 用于土体宏微观力学特性测试的微型三轴仪研制[J]. 岩土工程学报, 2020, 42(增刊1): 6-10. doi: 10.11779/CJGE2020S1002

    JIANG Mingjing, LI Guangshuai, CAO Pei, et al. Development of micro triaxial instrument for macro and micro mechanical properties testing of soil[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(S1): 6-10. (in Chinese) doi: 10.11779/CJGE2020S1002
    [10]
    DESRUES J, CHAMBON R, MOKNI M, et al. Void ratio evolution inside shear bands in triaxial sand specimens studied by computed tomography[J]. Géotechnique, 1996, 46(3): 529-546. doi: 10.1680/geot.1996.46.3.529
    [11]
    李晓军, 张登良. 路基填土单轴受压细观结构CT监测分析[J]. 岩土工程学报, 2000, 22(2): 205-209. doi: 10.3321/j.issn:1000-4548.2000.02.012

    LI Xiaojun, ZHANG Dengliang. Monitoring change of structure of road foundation soil in uniaxial compression test with CT[J]. Chinese Journal of Geotechnical Engineering, 2000, 22(2): 205-209. (in Chinese) doi: 10.3321/j.issn:1000-4548.2000.02.012
    [12]
    陈正汉, 卢再华, 蒲毅彬. 非饱和土三轴仪的CT机配套及其应用[J]. 岩土工程学报, 2001, 23(4): 387-392. doi: 10.3321/j.issn:1000-4548.2001.04.001

    CHEN Zhenghan, LU Zaihua, PU Yibin. The matching of computerized tomograph with triaxial test apparatus for unsaturated soils[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(4): 387-392. (in Chinese) doi: 10.3321/j.issn:1000-4548.2001.04.001
    [13]
    ODA M, KAZAMA H. Microstructure of shear bands and its relation to the mechanisms of dilatancy and failure of dense granular soils[J]. Géotechnique, 1998, 48(4): 465-481. doi: 10.1680/geot.1998.48.4.465
    [14]
    MATSUSHIMA T, KATAGIRI J, UESUGI K, et al. Micro X-ray CT at spring-8 for granular mechanics[M]// Solid Mechanics and its Applications. Dordrecht: Springer Netherlands, 2003: 225-234.
    [15]
    HALL S A, BORNERT M, DESRUES J, et al. Discrete and continuum analysis of localised deformation in sand using X-ray μCT and volumetric digital image correlation[J]. Géotechnique, 2010, 60(5): 315-322. doi: 10.1680/geot.2010.60.5.315
    [16]
    KARATZA Z, ANDÒ E, PAPANICOLOPULOS S A, et al. Evolution of deformation and breakage in sand studied using X-ray tomography[J]. Géotechnique, 2018, 68(2): 107-117. doi: 10.1680/jgeot.16.P.208
    [17]
    CHENG Z, WANG J F. An investigation of the breakage behaviour of a pre-crushed carbonate sand under shear using X-ray micro-tomography[J]. Engineering Geology, 2021, 293: 106286. doi: 10.1016/j.enggeo.2021.106286
    [18]
    ZHANG S M, SAXENA N, BARTHELEMY P, et al. Poromechanics investigation at pore-scale using digital rock physics laboratory[C]// The Proceedings of 2011 COMSOL Conference in Stuttgart, Stuttgart, 2011.
    [19]
    CHARALAMPIDOU E-M, HALL S A, STANCHITS S, et al. Characterization of shear and compaction bands in a porous sandstone deformed under triaxial compression[J]. Tectonophysics, 2011, 503(1/2): 8-17.
    [20]
    FANG X W, HU F H, YAO Z H, et al. Development and application of triaxial apparatus for soil with high bearing pressure by computed tomography[J]. Journal of Testing and Evaluation, 2023, 51(6): 20220584.
    [21]
    土工试验方法标准: GB/T 50123—2019[S]. 北京: 中国计划出版社, 2019.

    Standard for Geotechnical Testing Method: GB/T 50123—2019[S]. Beijing: China Planning Press, 2019. (in Chinese)
    [22]
    HARDIN B O. Crushing of soil particles[J]. Journal of Geotechnical Engineering, 1985, 111(10): 1177-1192. doi: 10.1061/(ASCE)0733-9410(1985)111:10(1177)
    [23]
    WILDENSCHILD D, SHEPPARD A P. X-ray imaging and analysis techniques for quantifying pore-scale structure and processes in subsurface porous medium systems[J]. Advances in Water Resources, 2013, 51: 217-246. doi: 10.1016/j.advwatres.2012.07.018
    [24]
    VASILE G, OVARLEZ J P, PASCAL F, et al. Coherency matrix estimation of heterogeneous clutter in high-resolution polarimetric SAR images[J]. IEEE Transactions on Geoscience and Remote Sensing, 2010, 48(4): 1809-1826. doi: 10.1109/TGRS.2009.2035496
    [25]
    BAY B K, SMITH T S, FYHRIE D P, et al. Digital volume correlation: Three-dimensional strain mapping using X-ray tomography[J]. Experimental Mechanics, 1999, 39(3): 217-226. doi: 10.1007/BF02323555
    [26]
    LI X S, DAFALIAS Y F. Dilatancy for cohesionless soils[J]. Géotechnique, 2000, 50(4): 449-460. doi: 10.1680/geot.2000.50.4.449
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