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LIU Xiancai, LI Bo, SHEN Liqun, JIANG Fengming, SHI Xiaoshi, CHEN Lei. Research on the relative density of sand and gravel filled underwater based on geotechnical centrifuge tests[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(S1): 239-243. DOI: 10.11779/CJGE2024S10036
Citation: LIU Xiancai, LI Bo, SHEN Liqun, JIANG Fengming, SHI Xiaoshi, CHEN Lei. Research on the relative density of sand and gravel filled underwater based on geotechnical centrifuge tests[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(S1): 239-243. DOI: 10.11779/CJGE2024S10036

Research on the relative density of sand and gravel filled underwater based on geotechnical centrifuge tests

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  • Received Date: April 28, 2024
  • Underwater dumping and filling of loose particles is often used in the construction of water conservancy projects such as cofferdams and dams. The compactness of the backfill directly determines the deformation and stability of the project. Experimental and theoretical research was conducted under the prototype condition of a hydropower station dam project with underwater filling in the Han River. Based on the CKY200 large-scale geotechnical centrifuge model test platform of Changjiang River Scientific Research Institute, a single embankment vertical blockage underwater filling test device in a centrifuge field is developed. Using this experimental device, the distribution laws of the compactness of the dumping body under the factors such as the gradation of loose particles, the depth of dumping and filling and the height of upper loading are studied. When the water depth is 12 meters, the average relative density obtained by underwater filling is about 0.27~0.36, and increases to 0.52~0.68 for an additional 14.3 m overlying load. The particle size distribution of sand and gravel plays an important role in the underwater filling density. When the particle gradation of the filling materials is good, the underwater filling materials have a higher compactness, which can reach a dense state. When the gradation is poor, the compactness is lower. The greater the depth of filling, the greater the compactness formed. When the vertical compression is applied to the upper part of the backfill, the compactness of the backfill, especially in shallow areas, is significantly improved. The research results provide a basis for the design and construction of underwater dumping and filling projects, especially for fully utilizing the local granular materials.
  • [1]
    郑守仁. 三峡工程大江截流及二期围堰设计主要技术问题论述[J]. 人民长江, 1997(4): 3-6. https://www.cnki.com.cn/Article/CJFDTOTAL-RIVE704.000.htm

    ZHENG Shouren. Major technical problems about river closure and second stage cofferdam design at Three Gorges Project[J]. Ren Min Changjiang, 1997(4): 3-6. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-RIVE704.000.htm
    [2]
    包承纲, 李玫. 60 m水深中抛填土体的密度怎么测[J]. 地基处理, 2021, 3(6): 538-540. https://www.cnki.com.cn/Article/CJFDTOTAL-DJCL202106016.htm

    BAO Chenggang, LI Mei. Density measurement method of dumped soil in 60 m water depth[J]. Journal of Ground Improvement, 2021, 3(6): 538-540. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DJCL202106016.htm
    [3]
    程永辉, 饶锡保, 周小文. 散粒料水下抛填堰体密度的离心模型试验研究[J]. 长江科学院院报, 2013, 30(10): 42-47. https://www.cnki.com.cn/Article/CJFDTOTAL-CJKB201310009.htm

    CHENG Yonghui, RAO Xibao, ZHOU Xiaowen. Centrifugal model tests on the density of cofferdam formed by underwater granular material packing[J]. Journal of Yangtze River Scientific Research Institute, 2013, 30(10): 42-47. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-CJKB201310009.htm
    [4]
    李青云, 程展林. 三峡工程二期围堰运行后的性状分析[J]. 岩土工程学报, 2005, 27(4): 410-413. http://cge.nhri.cn/cn/article/id/11643

    LI Qingyun, CHENG Zhanlin. Analysis of the behaviour of stage Ⅱ cofferdam of TGP[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(4): 410-413. (in Chinese) http://cge.nhri.cn/cn/article/id/11643
    [5]
    MAHMOUDI Y, CHERIF TAIBA A, HAZOUT L, et al. Packing density and overconsolidation ratio effects on the mechanical response of granular soils[J]. Geotechnical and Geological Engineering, 2020, 38(1): 723-742. doi: 10.1007/s10706-019-01061-2
    [6]
    ABDELLAH C T, MOSTEFA B, TOM S, et al. Experimental investigation into the influence of roundness and sphericity on the undrained shear response of silty sand soils[J]. Geotechnical Testing Journal, 2018, 41(3).
    [7]
    WEI Y, YANG Y, TAO M. Effects of gravel content and particle size on abrasivity of sandy gravel mixtures[J]. Engineering Geology, 2018, 243: 26-35. doi: 10.1016/j.enggeo.2018.06.009
    [8]
    CHANG W, PHANTACHANG T. Effects of gravel content on shear resistance of gravelly soils[J]. Engineering Geology, 2016, 207: 78-90. doi: 10.1016/j.enggeo.2016.04.015
    [9]
    KALMAN H. Bulk densities and flowability of mono-sized, binary mixtures and particle size distributions of glass spheres[J]. Powder Technology, 2022, 397: 117086. doi: 10.1016/j.powtec.2021.117086
    [10]
    CHEN J, CAI X, LALE E, et al. Centrifuge modeling testing and multiscale analysis of cemented sand and gravel (CSG) dams[J]. Construction and Building Materials, 2019, 223: 605-615. doi: 10.1016/j.conbuildmat.2019.06.218
    [11]
    RASSOULUY S M K. The packing density of perfect binary mixtures[J]. Powder Technology, 1999, 103(2): 145-150. doi: 10.1016/S0032-5910(98)00223-X
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