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Volume 41 Issue 11
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CAI Zheng-yin, CHEN Hao, HUANG Ying-hao, ZHANG Chen. Failure mechanism of canal slopes of expansive soils considering action of wetting-drying cycles[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(11): 1977-1982. DOI: 10.11779/CJGE201911001
Citation: CAI Zheng-yin, CHEN Hao, HUANG Ying-hao, ZHANG Chen. Failure mechanism of canal slopes of expansive soils considering action of wetting-drying cycles[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(11): 1977-1982. DOI: 10.11779/CJGE201911001
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Failure mechanism of canal slopes of expansive soils considering action of wetting-drying cycles

  • 1. Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, China;
    2. College of Civil and Transportation Engineering, Hohai University, Nanjing 210024, China

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  • Received Date: December 24, 2018
  • Published Date: November 24, 2019
    Graphical Abstract
    • Abstract
  • The canal of expansive soils is in the state of wetting-drying cycle because of seasonal water level fluctuations, and its slope instability is easily induced. The centrifugal model tests are carried out to study the stability of a canal slope of expansive soils under wetting-drying cycles, and its failure mechanism is investigated. It is found that the soil of the canal slope undergoes various wetting-drying cycles due to the repeating water level fluctuations in the canal. After each cycle, the cracks in the soil gradually expand, the water in the canal infiltrates continuously, and the saturated area gradually increases. The stronger the expansive capability of foundation soils, the more severe the crack extension after each wetting-drying cycle, the stronger the infiltration of canal water, and the more easily the canal is destroyed. The main failure mode of the canal caused by wetting-drying cycles of water level fluctuations is shallow instability, which is quite different from the retrogressive landslide discovered by other researchers.
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    • References (10)
  • [1]
    NG C W W, ZHAN L T, BAO C G, et al. Performance of an unsaturated expansive soil slope subjected to artificial rainfall infiltration[J]. Géotechnique, 2003, 53(2): 143-157.
    [2]
    詹良通, 吴宏伟, 包承纲, 等. 降雨入渗条件下非饱和膨胀土边坡原位监测[J]. 岩土力学, 2003, 24(2): 151-158.
    (ZHAN Liang-tong, NG C W W, BAO Cheng-gang, et al. Artificial rainfall infiltration tests on a well-instrumented unsaturated expansive soil slope[J]. Rock and Soil Mechanics, 2003, 24(2): 151-158. (in Chinese))
    [3]
    DAI Z, CHEN S, LI J.The failure characteristics and evolution mechanism of the expansive soil trench slope[C]// 2nd Pan-American Conference on Unsaturated Soils. New York, 2017.
    [4]
    CHENG Z L, DING J, RAO X, et al.Physical model tests of expansive soil slope[C]// Geo-Congress. San Diego, 2013: 731-740.
    [5]
    GRECO R, GUIDA A, DAMIANO E, et al.Soil water content and suction monitoring in model slopes for shallow flowslides early warning applications[J]. Physics & Chemistry of the Earth Parts, 2010, 35(3/4/5): 127-136.
    [6]
    陈生水, 郑澄锋, 王国利. 膨胀土边坡长期强度变形特性和稳定性研究[J]. 岩土工程学报, 2007, 29(6): 795-799.
    (CHEN Sheng-shui, ZHENG Cheng-feng, WANG Guo-li.Researches on long-term strength deformation characteristics and stability of expansive soil slopes[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(6): 795-799. (in Chinese))
    [7]
    王国利, 陈生水, 徐光明. 干湿循环下膨胀土边坡稳定性的离心模型试验[J]. 水利水运工程学报, 2005(4): 6-10.
    (WANG Guo-li. CHEN Sheng-shui, XU Guang-ming.Centrifuge model test on stability of expansive soil slope under alternation between drying and wetting[J]. Hydro-Science and Engineering, 2005(4): 6-10. (in Chinese))
    [8]
    饶锡保, 陈云, 曾玲. 膨胀土渠道边坡稳定性离心模型试验及有限元分析[J]. 长江科学院院报, 2002, 19(增刊1): 105-107.
    (RAO Xi-bao, CHEN Yun, ZENG Ling.Centrifugal model test and FEM study on slope stability of expansive soil channel of Water Transfer Project from South to North[J] Journal of Yangtze River Scientific Research Institute, 2002, 19(S1): 105-107. (in Chinese))
    [9]
    徐光明, 王国利, 顾行文, 等. 雨水入渗与膨胀性边坡稳定性试验研究[J]. 岩土工程学报, 2006, 28(2): 270-273.
    (XU Guang-ming, WANG Guo-li, GU Xing-wen, et al.Centrifuge modeling for instability of excavated slope in expansive soil due to water infiltration[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(2): 270-273. (in Chinese))
    [10]
    程永辉, 程展林, 张元斌. 降雨条件下膨胀土边坡失稳机理的离心模型试验研究[J]. 岩土工程学报, 2011, 33(增刊1): 416-421.
    (CHENG Yong-hui, CHENG Zhan-lin, ZHANG Yuan-bin.Centrifugal model tests on expansive soil slope under rainfall[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(S1): 416-421. (in Chinese))
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