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LIU Jun-ding, LI Rong-jian, SUN Ping, WANG Zhi-jun, LUO Jian-wen, LI Zhen-fei. Duncan-Chang nonlinear constitutive model based on joint strength theory of structural loess[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(S1): 124-128. DOI: 10.11779/CJGE2018S1020
Citation: LIU Jun-ding, LI Rong-jian, SUN Ping, WANG Zhi-jun, LUO Jian-wen, LI Zhen-fei. Duncan-Chang nonlinear constitutive model based on joint strength theory of structural loess[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(S1): 124-128. DOI: 10.11779/CJGE2018S1020

Duncan-Chang nonlinear constitutive model based on joint strength theory of structural loess

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  • Received Date: February 23, 2018
  • Published Date: August 24, 2018
  • The Duncan-Chang nonlinear model based on the Mohr-Coulomb strength criterion can better reflect the shear strength characteristics of the soil, but it is not suitable to reflect the tensile strength characteristics of the soil. In order to reflect the tensile strength of the structural loess reasonably, firstly, the strength of soil is re-determined by introducing the joint strength criterion into the Duncan-Chang nonlinear constitutive model, and the failure stress ratio based on the joint strength theory of structural loess is corrected. Then, the tangent deformational modulus is re-determined by the modified failure stress ratio. Finally, the tangent Poisson's ratio is modified by the modified tangent deformational modulus, and the Duncan-Chang nonlinear constitutive model based on the joint strength theory is established, which provides a new method for reasonable consideration of the tensile strength characteristics of structural loess in the study on the stability of structural loess slopes.
  • [1]
    朱百里, 沈珠江. 计算土力学[M]. 上海: 上海科学技术出版社, 1990.
    (ZHU Bai-li, SHEN Zhu-jiang.Computational soil mechanics[M]. Shanghai: Shanghai Scientific and Technical Publishers, 1990. (in Chinese))
    [2]
    DUNCAN J M, CHANG C Y.Nonlinear analysis of stress and strain in soils[J]. Journal of Soil Mechanics and Foundations Division, 1996, 96(5): 1629-1653.
    [3]
    罗刚, 张建民. 邓肯-张模型和沈珠江双屈服面模型的改进[J]. 岩土力学, 2004, 25(6): 887-890.
    (LUO Gang, ZHANG Jian-min.Improvement of Duncan-Chang nonlinear model and Shen Zhujiang’s elastoplastic model for granular soils[J]. Rock and Soil Mechanics, 2004, 25(6): 887-890. (in Chinese))
    [4]
    李荣建, 刘军定, 郑文, 等. 基于结构性黄土抗拉和抗剪特性的双线性强度及其应用[J]. 岩土工程学报, 2013, 35(增刊2): 247-252.
    (LI Rong-jian, LIU Jun-ding, ZHENG Wen, et al.A bilinear strength formula for structured loess based on tensile strength and shear strength and its application[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(S2): 247-252. (in Chinese))
    [5]
    LI Rong-jian, LIU Jun-ding, YAN Rui, et al.Characteristics of structural loess strength and preliminary framework for joint strength formula[J]. Water Science and Engineering, 2014, 7(3): 319-330.
    [6]
    王立忠, 赵志远. 考虑土体结构性的修正邓肯-张模型[J]. 水利学报, 2004(1): 83-89.
    (Wang Li-zhong, Zhao Zhi-yuan.Non-linear elastic model considering soil structural damage[J]. Journal of Hydraulic Engineering, 2004(1): 83-89. (in Chinese))
    [7]
    冯卫星, 常绍东. 北京细砂土邓肯-张模型参数试验研究[J], 岩石力学与工程学报, 1999, 18(3): 327-330.
    (FENG Wei-xing, CHANG Shao-dong.Experimental study on parameters of Duncan-Chang model for Beijing fine sandy soil[J]. Chinese Joural of Rock Mechanics and Engineering, 1999, 18(3): 327-330. (in Chinese))
    [8]
    沈广军. 邓肯-张模型的改进[J]. 河海大学学报: 自然科学版, 2010, 38(1): 109-114.
    (SHEN Guang-jun.Improvement of Ducan-Chang model[J]. Journal of Hohai University: Natural Sciences, 2010, 38(1): 109-114. (in Chinese))
    [9]
    谢晓华, 沈珠江. 土石坝计算中非线形模型的改进[J]. 水利水运科学研究, 1988(3): 43-55.
    (XIE Xiao-hua, SHEN Zhu-jiang.Modification of nonlinear model in the stress-strain analysis of earth and rockfill dam[J]. Hydro-science and Engineering, 1988(3): 43-55. (in Chinese))
    [10]
    田堪良, 王沛, 张慧莉. 考虑结构性的原状黄土应力-变关系的探讨[J]. 岩土力学, 2013, 34(7): 1893-1898.
    (TIAN Kan-liang, WANG Pei, ZHANG Hui-li.Discussion on stress-strain relation of intact loess considering soil structure[J]. Rock and Soil Mechanics, 2013, 34(7): 1893-1898. (in Chinese))
    [11]
    陈昌禄, 邵生俊, 马林. 考虑黄土结构性的修正邓肯-张模型研究[J]. 西北农林科技大学学报(自然科学版), 2011, 39(11): 223-228.
    (CHEN Chang-lu, SHAO Sheng-jun, MA Lin.Study on modified Duncan-Chang model considering loess structural[J]. Journal of Northwest A&F University (Natural Science Edition), 2011, 39(11): 223-228. (in Chinese))
    [12]
    许萍, 邵生俊, 张喆, 等. 真三轴应力条件下修正邓肯-张模型的试验研究[J]. 岩土力学, 2013, 34(12): 3359-3364.
    (XU Ping, SHAO Sheng-jun, ZHANG Zhe, et al.Experimental study of modified Duncan-Chang model under true triaxial stresses[J]. Rock and Soil Mechanics, 2013, 34(12): 3359-3364. (in Chinese))
    [13]
    KONDNER R L.Hyperbolic stress-strain response: cnesive soils[J]. Journal of the Soil Mechanics and Foundation Division, 1963, 89(1): 115-144.
    [14]
    李广信. 高等土力学[M]. 2版. 北京: 清华大学出版社, 2016.
    (LI Guang-xin.Advanced soil mhanics[M]. 2nd ed. Beijing: Tsinghua University Press, 2016. (in Chinese))

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