Advanced Search
  • 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
Volume 44 Issue S1
Turn off MathJax
Article Contents
Abstract
References
GUO Nan, CHEN Zheng-han, YANG Xiao-hui, GAO Deng-hui. True triaxial tests on transversely isotropic unsaturated loess[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(S1): 74-79. DOI: 10.11779/CJGE2022S1014
Citation: GUO Nan, CHEN Zheng-han, YANG Xiao-hui, GAO Deng-hui. True triaxial tests on transversely isotropic unsaturated loess[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(S1): 74-79. DOI: 10.11779/CJGE2022S1014
shu

True triaxial tests on transversely isotropic unsaturated loess

  • 1.

    School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China

  • 2.

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

  • 3.

    College of Architecture and Civil Engineering, Huanghuai University, Zhumadian 463000, China

More Information
  • Received Date: September 21, 2022
  • Available Online: February 06, 2023
    Graphical Abstract
    • Abstract
  • In order to study the mechanical properties of transversely isotropic unsaturated remolded loess under complex stress paths, two groups of 15 tests are carried out using the true triaxial apparatus. The first group consists of 9 tests, each of which includes two stages: the sample is pre-consolidated by K0 under the constant vertical pressure, and then the true triaxial consolidated drained shear tests with the constant suction, net confining pressure and intermediate principal stress parameter are carried out. The second group of 6 tests are the true triaxial shear ones with the constant water content under different shear rates and the constant suction, net confining pressure and intermedium principal stress parameter. The test results show that all the stress-strain curves in the true triaxial consolidated drained shear tests are hardening type and in hyperbolic form, and the hardening trend is more obvious with the increase of the intermedium principal stress parameter. All the samples are in shear contraction state during the shearing process, and the water content of the samples decreases with the shearing process. The water content-axial strain relationship curve of the samples before failure can be approximated as a straight line. In the true triaxial shear tests with the constant water content, the loading rate has few effects on the basic form of the stress-strain curve, but has certain effects on the stiffness of the samples, which are not monotonous, so there may be a critical rate. In the shear process, the volume of the samples decreases continuously, and the saturation increases with the increase of the deviatoric stress, so the pore water pressure increases and the suction decreases continuously. The research results may provide useful reference for the establishment of constitutive model and strength criterion for the transversely isotropic unsaturated loess and its engineering application.
    • FullText(HTML)
    • References (16)
  • [1]
    陈正汉, 郭楠. 非饱和土与特殊土力学及工程应用研究的新进展[J]. 岩土力学, 2019, 40(1): 1–54. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201901002.htm

    CHEN Zheng-han, GUO Nan. New developments of mechanics and application for unsaturated soils and special soils[J]. Rock and Soil Mechanics, 2019, 40(1): 1–54. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201901002.htm
    [2]
    郭楠, 陈正汉, 杨校辉, 等. 横观各向同性非饱和土的增量非线性本构模型及参数变化规律研究[J]. 岩土工程学报, 2021, 43(12): 2283–2290. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC202112015.htm

    GUO Nan, CHEN Zheng-han, YANG Xiao-hui, et al. Incremental nonlinear constitutive model and parameter variation of transversely isotropic unsaturated soils[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(12): 2283–2290. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC202112015.htm
    [3]
    郭楠, 陈正汉, 杨校辉, 等. 各向同性土与横观各向同性土的力学特性和持水特性[J]. 西南交通大学学报, 2019, 54(6): 1235–1243. https://www.cnki.com.cn/Article/CJFDTOTAL-XNJT201906015.htm

    GUO Nan, CHEN Zheng-han, YANG Xiao-hui, et al. Mechanical properties and water holding characteristics of initially isotropic soils and transversely isotropic soils[J]. Journal of Southwest Jiaotong University, 2019, 54(6): 1235–1243. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XNJT201906015.htm
    [4]
    郭楠. 非饱和土的增量非线性横观各向同性本构模型研究[D]. 兰州: 兰州理工大学, 2018.

    GUO Nan. Study on incremental nonlinear transverse isotropic constitutive model of unsaturated soil[D]. Lanzhou: Lanzhou Universtiy of Technology, 2018. (in Chinese)
    [5]
    陈天宇, 冯夏庭, 张希巍, 等. 黑色页岩力学特性及各向异性特性试验研究[J]. 岩石力学与工程学报, 2014, 33(9): 1772–1779. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201409007.htm

    CHEN Tian-yu, FENG Xia-ting, ZHANG Xi-wei, et al. Experimental study on mechanical and anisotropic properties of black shale[J]. Chinese Journal of Rock Mechanics and Engineering, 2014, 33(9): 1772–1779. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201409007.htm
    [6]
    GAO Z W, ZHAO J D, YAO Y P. A generalized anisotropic failure criterion for geomaterials[J]. International Journal of Solids and Structures, 2010, 47(22/23): 3166–3185.
    [7]
    LU D C, LIANG J Y, DU X L, et al. A novel transversely isotropic strength criterion for soils based on a mobilised plane approach[J]. Géotechnique, 2019, 69(3): 234–250. doi: 10.1680/jgeot.17.P.191
    [8]
    LADE P L, ABELEV A. Characterization of cross-anisotropic soil deposits from isotropic compression tests[J]. Soils and Foundations, 2005, 45(5): 89–102. doi: 10.3208/sandf.45.5_89
    [9]
    郑方, 邵生俊, 张博, 等. 控制吸力的非饱和土真三轴试验研究[J]. 岩土工程学报, 2019, 41(增刊2): 33–36. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2019S2010.htm

    ZHENG Fang, SHAO Sheng-jun, ZHANG Bo, et al. True triaxial tests on unsaturated soils with suction-controlled condition[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S2): 33–36. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2019S2010.htm
    [10]
    方瑾瑾, 冯以鑫, 王立平, 等. 真三轴条件下非饱和黄土的有效应力屈服特性[J]. 岩土力学, 2020, 41(2): 492–500. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX202002020.htm

    FANG Jin-jin, FENG Yi-xin, WANG Li-ping, et al. Effective stress yielding behavior of unsaturated loess under true triaxial conditions[J]. Rock and Soil Mechanics, 2020, 41(2): 492–500. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX202002020.htm
    [11]
    杨康康, 柴寿喜, 王沛, 等. 山东德州地区粉质黏土真三轴不排水抗剪性能[J]. 天津城建大学学报, 2021, 27(4): 244–249. https://www.cnki.com.cn/Article/CJFDTOTAL-TJCS202104003.htm

    YANG Kang-kang, CHAI Shou-xi, WANG Pei, et al. True triaxial shear properties under undrained conditions on silty clay of Dezhou of Shandong province[J]. Journal of Tianjin Chengjian University, 2021, 27(4): 244–249. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TJCS202104003.htm
    [12]
    姜景山, 左永振, 程展林, 等. 应力状态对粗粒料力学特性影响的大型真三轴试验[J]. 岩土力学, 2020, 41(11): 3563–3572. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX202011007.htm

    JIANG Jing-shan, ZUO Yong-zhen, CHENG Zhan-lin, et al. Effects of stress state on mechanical properties of coarse granular material using large-scale true triaxial tests[J]. Rock and Soil Mechanics, 2020, 41(11): 3563–3572. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX202011007.htm
    [13]
    邵生俊, 许萍, 邵帅, 等. 一室四腔刚-柔加载机构真三轴仪的改进与强度试验: 西安理工大学真三轴仪[J]. 岩土工程学报, 2017, 39(9): 1575–1582. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201709006.htm

    SHAO Sheng-jun, XU Ping, SHAO Shuai, et al. Improvement and strength testing of true tri-axial apparatus with one chamber and four cells and rigid-flexible-flexible loading boundary mechanism—True triaxial apparatus developed in Xi'an University of Technology[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(9): 1575–1582. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201709006.htm
    [14]
    胡田飞, 刘建坤, 刘振亚, 等. 粉质黏土强度特性应变速率效应的试验研究[J]. 铁道学报, 2018, 40(2): 132–140. https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB201802020.htm

    HU Tian-fei, LIU Jian-kun, LIU Zhen-ya, et al. Experimental study on strain rate effect of strength characteristics of silty clay[J]. Journal of the China Railway Society, 2018, 40(2): 132–140. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB201802020.htm
    [15]
    朱启银, 尹振宇, 朱俊高, 等. 软黏土加载速率效应特性试验研究: 进展与趋势[J]. 岩土力学, 2014, 35(1): 7–24. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201401002.htm

    ZHU Qi-yin, YIN Zhen-yu, ZHU Jun-gao, et al. Progress and trend of experimental investigation on rate-dependent behavior of soft clays[J]. Rock and Soil Mechanics, 2014, 35(1): 7–24. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201401002.htm
    [16]
    彭芳乐, 李福林, 李建中, 等. 砂土应力–应变关系的加载速率效应分析[J]. 岩土力学, 2007, 28(增刊1): 16–20. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX2007S1004.htm

    PENG Fang-le, LI Fu-lin, LI Jian-zhong, et al. Loading rate effects on stress-strain relation of sandy soils[J]. Rock and Soil Mechanics, 2007, 28(S1): 16–20. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX2007S1004.htm
    • Related Articles
  • Supplements (0)

  • Cited by

    Periodical cited type(1)

    1. 谭明伦，仝令帅，周鸣亮，张乐，黄宏伟. 数物双驱动的水下隧道围岩稳定性分析. 现代隧道技术. 2024(S1): 183-193 .

    Other cited types(1)

Catalog

    Get Citation
    PDF
    XML
    Article views (144) PDF downloads (19) Cited by(2)
    Related
    Copyright © 2010 Editorial By Chinese Journal of Geotechnical Engineering 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return