高级搜索
  • 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

考虑干湿循环作用的膨胀土渠道边坡破坏机理研究

蔡正银, 陈皓, 黄英豪, 张晨

蔡正银, 陈皓, 黄英豪, 张晨. 考虑干湿循环作用的膨胀土渠道边坡破坏机理研究[J]. 岩土工程学报, 2019, 41(11): 1977-1982. DOI: 10.11779/CJGE201911001
引用本文: 蔡正银, 陈皓, 黄英豪, 张晨. 考虑干湿循环作用的膨胀土渠道边坡破坏机理研究[J]. 岩土工程学报, 2019, 41(11): 1977-1982. DOI: 10.11779/CJGE201911001
shu
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
shu

考虑干湿循环作用的膨胀土渠道边坡破坏机理研究  English Version

  • 1. 南京水利科学研究院岩土工程研究所,江苏 南京 210024;
    2. 河海大学土木与交通学院,江苏 南京 210024

基金项目: 国家重点研发计划项目（SQ2017YFSF020086）; 水利部推广项目（SF-201704）; 国家自然科学基金项目（51879166）
详细信息
    作者简介:

    蔡正银(1965— ),男,江苏海安人,博士,教授级高级工程师,博士生导师,主要从事土的基本性质与土工测试、土的本构理论、土工离心模拟技术方面的工作。E-mail: zycai@nhri.cn。

    通讯作者:

    陈皓，E-mail：chenhao4912@163.com

  • 中图分类号: TU475

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

摘要

    摘要
  • 摘要: 膨胀土渠道由于季节性的通水和停水,其边坡实际处于干湿循环的状态,非常容易引起边坡失稳。采用离心模型试验对干湿循环作用下的膨胀土渠道边坡稳定性进行了探讨,研究了渠道边坡的破坏机理。研究发现,由于渠道的反复通水和停水,渠道边坡土体经历了多次干湿循环,每次循环后边坡土体裂缝逐渐扩展,渠水不断入渗,饱和区逐渐扩大。渠基土的膨胀性越强,每次干湿循环后的裂隙扩展越严重,渠水入渗作用也越强,渠道越容易破坏。研究还发现,由于通水和停水造成的渠道干湿循环破坏模式主要表现为渠坡整体发生浅层失稳破坏,这一破坏模式与前人研究发现的牵引式滑坡具有较大不同之处。
    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.
    • HTML全文
    • 参考文献(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))
    • 相关文章
    • 施引文献(31)

  • 期刊类型引用(17)

    1. 邹俊杰，尹志勇，彭蓬，吴沂洋，谭鹏强，高攀. 橡胶砂最小干密度测定及其经验公式. 建材技术与应用. 2024(03): 28-32 . 百度学术
    2. 夏虎. 砂土地基液化沉降的数值模拟探究. 四川建材. 2024(10): 77-79 . 百度学术
    3. 黄超天，王天齐，董玉翔，沈才华，曾志康. 级配砂不同含量的软土变形特性及其本构方程. 水道港口. 2024(05): 772-781 . 百度学术
    4. 张雪锋，李忠，陈诚，徐梓斐. 基于Origin的土工颗粒分析试验数据处理. 黄河水利职业技术学院学报. 2023(01): 42-45+54 . 百度学术
    5. 李涛，赵洪扬，翁勃航，黄晓冀，张钟毓. 细颗粒形状和含量对钙质混合砂强度的影响试验研究. 岩土工程学报. 2023(07): 1517-1525 . 本站查看
    6. 张武东，柴安俊，张建，李伟. 含细粒风积沙压实特性研究. 四川建材. 2023(10): 21-22+48 . 百度学术
    7. 尹志勇，许鸣珠，景立平，高攀，韩雪，杨光. 橡胶-砂混合土动力学研究进展. 自然灾害学报. 2023(05): 12-20 . 百度学术
    8. 李方圆，董林，夏坤，李燕，王晓磊. 细粒含量对砂土液化势影响探讨. 地震工程与工程振动. 2022(02): 244-251 . 百度学术
    9. 朱会强，张明，薛茹，郭军辉，贾继龙. 中美抗震规范中地层液化判定标准对比. 勘察科学技术. 2022(01): 1-6 . 百度学术
    10. 李富春，张璟泓，周红星，王婧，梁小丛. 粉粒及黏粒含量对强夯加固粉细砂土层效果的影响. 人民长江. 2022(08): 186-191 . 百度学术
    11. 张巍巍，袁延召，王彦军，李小龙，王攀，费召阳. 初始泥浆对吹填土抗液化强度CRR的影响. 科学技术与工程. 2022(26): 11310-11315 . 百度学术
    12. 王壹敏，陈志敏，孙胜旗，赵运铎，张常书. 基于邓肯-张模型的低液限粉质黏土-砂的强度规律. 科学技术与工程. 2021(08): 3252-3257 . 百度学术
    13. 朱成浩，崔高航. 基于非对称滞回的不同细粒含量融化粉砂本构模型. 科学技术与工程. 2021(10): 4167-4174 . 百度学术
    14. 许锐，孔亮，袁庆盟，赵亚鹏，刘佳棋. 泥质粉砂型能源土的三轴剪切试验研究. 宁夏大学学报(自然科学版). 2021(02): 141-147 . 百度学术
    15. 陈晓飞，吴建翔，李园. 应力路径对饱和砂土动力特性影响的试验研究. 工程技术研究. 2021(12): 6-8 . 百度学术
    16. 李雪，曾毓燕，郁飞，施刚. 基于地面运动强度及标准贯入试验的上海地区砂土地震液化评价. 地质力学学报. 2021(06): 998-1010 . 百度学术
    17. 胡再强，郭婧，梁志超，王凯，冯哲，陈振鹏. 黏粒含量对细粒尾矿物理力学性质的影响. 岩土工程学报. 2020(S1): 16-21 . 本站查看

    其他类型引用(14)

    • 资源附件(0)
计量
  • 文章访问数:  448
  • HTML全文浏览量:  11
  • PDF下载量:  415
  • 被引次数: 31
出版历程
  • 收稿日期:  2018-12-24
  • 发布日期:  2019-11-24

目录

摘要
HTML全文
    参考文献(10)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回
    版权所有 © 2010水利部交通部国家能源局南京水利科学研究院 苏ICP备05007122号-11公安联网备案号：32010602011255
    编辑部地址：南京市虎踞关34号《岩土工程学报》编辑部邮编：210024电话：025-85829534，85829556E-mail: ge@nhri.cn