Evaluation on deformation behavior of subgrade clay under freeze-thaw cycles: Laboratory tests and evolution model

被引:2
|
作者
Feng, Jie-xi [1 ]
He, Zhong-ming [1 ]
Huang, Chao [2 ]
Liu, Zheng-fu [1 ]
Xie, Tang-xin [1 ]
机构
[1] Changsha Univ Sci & Technol, Sch Traff & Transportat Engn, Changsha 410004, Peoples R China
[2] Cent South Univ, Sch Civil Engn, Changsha 410075, Peoples R China
基金
中国国家自然科学基金;
关键词
subgrade soil; repeated load triaxial test; deformation behavior; freeze-thaw cycles; evolution model; UNBOUND GRANULAR-MATERIALS; RESILIENT MODULUS; PERMANENT DEFORMATION; MOISTURE-CONTENT; SILTY CLAY; SOILS; CONSTRUCTION; STRESS; STRAIN;
D O I
10.1007/s11771-023-5320-x
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The deformation behavior of subgrade soil is crucial to the design of subgrade structures and to maintaining the long-term performance of pavements. Resilient modulus (MR) and permanent deformation (PD) are important indices to characterize elastic deformation and plastic deformation of subgrade soils, respectively. This study aims to investigate the evaluation of deformation behavior (MR and PD) of subgrade clay under deviatoric stress, confining pressure, moisture content, loading cycles, and freeze-thaw (FT) cycles by repeated triaxial load test. An evolution model for calculating PD was proposed based on experimental data. The results showed that the influence of FT cycles on MR and PD was obvious. The largest damage and stable trend were in the first and sixth FT cycles, respectively. MR decreases and PD increases rapidly during the first 2000 loading cycles. The PD evolution model consisting of deviator stress, confining pressure, moisture content, loading cycles and FT cycles of explicit modification functions was proposed and validated. The results obtained in this study contribute to a better understanding of the deformation behavior of subgrade clay under FT cycles.
引用
收藏
页码:1737 / 1749
页数:13
相关论文
共 50 条
  • [21] Effect of freeze-thaw cycles on mechanical behavior of clay-gravel mixtures
    Zhang, Yong-gan
    Liu, Si-hong
    Deng, Gang
    Fang, Bin-xin
    Zhang, Yan-yi
    Lu, Yang
    JOURNAL OF MOUNTAIN SCIENCE, 2022, 19 (12) : 3615 - 3626
  • [22] Effect of freeze-thaw cycles on mechanical behavior of clay-gravel mixtures
    Yong-gan Zhang
    Si-hong Liu
    Gang Deng
    Bin-xin Fang
    Yan-yi Zhang
    Yang Lu
    Journal of Mountain Science, 2022, 19 : 3615 - 3626
  • [23] Effect of freeze-thaw cycles on the accumulative deformation of frozen clay under cyclic loading conditions: experimental evidence and theoretical model
    Xu, Xiangtian
    Zhang, Weidong
    Fan, Caixia
    Lai, Ying
    Wu, Jun
    ROAD MATERIALS AND PAVEMENT DESIGN, 2021, 22 (04) : 925 - 941
  • [24] Effect of freeze-thaw cycles on mechanical behavior of clay-gravel mixtures
    ZHANG Yong-gan
    LIU Si-hong
    DENG Gang
    FANG Bin-xin
    ZHANG Yan-yi
    LU Yang
    JournalofMountainScience, 2022, 19 (12) : 3615 - 3626
  • [25] Variations on Reservoir Parameters of Oil Shale Deposits under Periodic Freeze-Thaw Cycles: Laboratory Tests
    Li, Rui-heng
    Sun, Zhong-guang
    He, Jiang-fu
    Liao, Zhi-wei
    Li, Lei
    Qian, Fang
    GEOFLUIDS, 2021, 2021
  • [26] Shear behavior at interface between compacted clay liner-geomembrane under freeze-thaw cycles
    Li, Ling
    Fall, Mamadou
    Fang, Kun
    COLD REGIONS SCIENCE AND TECHNOLOGY, 2020, 172
  • [27] Mechanical characteristics and damage evolution of granite under freeze-thaw cycles
    Chen, Dun
    Li, Guoyu
    Li, Jinming
    Du, Qingsong
    Zhou, Yu
    Mao, Yuncheng
    Qi, Shunshun
    Tang, Liyun
    Jia, Hailiang
    Peng, Wanlin
    FRONTIERS IN ENERGY RESEARCH, 2023, 10
  • [28] Brittleness evolution characteristics of cyan sandstone under freeze-thaw cycles
    Gao Feng
    Cao Shan-peng
    Xiong Xin
    Zhou Ke-ping
    Zhu Long-yin
    ROCK AND SOIL MECHANICS, 2020, 41 (02) : 445 - 452
  • [29] Freeze-thaw damage evaluation and model creation for concrete exposed to freeze-thaw cycles at early-age
    Liu, Dongyun
    Tu, Yongming
    Sas, Gabriel
    Elfgren, Lennart
    CONSTRUCTION AND BUILDING MATERIALS, 2021, 312
  • [30] The effect of microstructural evolution on the permeability of sandstone under freeze-thaw cycles
    Zhou, Xiao-Ping
    Li, Chang-Qing
    Zhou, Lun-Shi
    COLD REGIONS SCIENCE AND TECHNOLOGY, 2020, 177