Study on the Internal Mechanics and Energy Characteristics of Soil under Different Failure Modes

被引:0
|
作者
Tang, Lian-Sheng [1 ,2 ,3 ]
Wang, Yu-Xi [1 ,3 ,4 ]
机构
[1] Sun Yat Sen Univ, Sch Earth Sci & Engn, Zhuhai, Peoples R China
[2] Guangzhou Inst Sci & Technol, Sch Architectural Engn, Guangzhou 510540, Peoples R China
[3] Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China
[4] Guangdong Prov Key Lab Mineral Resources & Geol Pr, Guangzhou 510275, Peoples R China
来源
APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 15期
基金
中国国家自然科学基金;
关键词
artificial neural network; mineral composition; soil property; prediction model; STRENGTH;
D O I
10.3390/app13158648
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Under uniaxial compression, the soil mass may be subjected to transverse tensile splitting or swelling failure. This failure is caused by the tensile stress in the soil; that is, part of the vertical stress is converted into lateral stress. In order to investigate the factors that influence the stress transfer phenomenon, the failure mode of the soil mass can be predicted more accurately, and the internal force of the soil mass can be analyzed. This paper begins with the definition of the stress conversion coefficient and measures it by combining macroscopic mechanical properties with microscopic structure analyses. By carrying out a uniaxial compression test on a large soil sample, an equivalent tensile test was carried out according to the equivalent transverse displacement measured using the S-type tension sensor in order to explore the change law of the stress conversion coefficient. The arrangement and distribution of pores and particles at different positions in the samples before and after compression were further observed and analyzed using the SEM test to explore the formation mechanism of the stress transition phenomenon, and the following research results were obtained: (1) The stress conversion coefficient of the soil under compression is not invariable. An increase in the loading rate and a decrease in water content cause brittleness, and the stress conversion coefficient of the soil decreases. (2) Shear failure is more likely to occur in large samples of brittle soils under uniaxial compression. (3) The tensile stress in the compressed soil is caused by the invasion and extrusion of soil particles.
引用
收藏
页数:17
相关论文
共 50 条
  • [1] Study on mechanical characteristics and failure mechanics model for the limestone under different confining pressures
    Liu D.
    Liu C.
    Guo B.
    Lu B.
    Liu Y.
    Li J.
    Liu, Changwu (xxssd@263.net), 1600, Sichuan University (48): : 8 - 12
  • [2] Failure behavior and energy evolution characteristics of deep roadway sandstone under different microwave irradiation modes
    Tang, Mao-ying
    Gao, Ming-zhong
    Li, Shu-wu
    Yang, Ben-gao
    Tang, Rui-feng
    Li, Fei
    Liu, Jun-jun
    JOURNAL OF CENTRAL SOUTH UNIVERSITY, 2023, 30 (01) : 214 - 226
  • [3] Energy evolution and structural health monitoring of coal under different failure modes: An experimental study
    Xue, Yarong
    He, Xueqiu
    Song, Dazhao
    Li, Zhenlei
    Khan, Majid
    Zhong, Taoping
    Yang, Fei
    INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2024, 31 (05) : 917 - 928
  • [4] Energy evolution and structural health monitoring of coal under different failure modes:An experimental study
    Yarong Xue
    Xueqiu He
    Dazhao Song
    Zhenlei Li
    Majid Khan
    Taoping Zhong
    Fei Yang
    International Journal of Minerals,Metallurgy and Materials, 2024, (05) : 917 - 928
  • [5] Study on Structure Dynamic Characteristics for Internal Components of Kaplan Turbine Runner under Different Contact Modes
    Liu, Chengming
    Luo, Haiqiang
    Wang, Guiyu
    Chen, Xiaobin
    Zhou, Lingjiu
    Wang, Zhengwei
    PROCESSES, 2024, 12 (06)
  • [6] Test study on failure and energy supply characteristics of rock under different loading stiffness
    Yin, Yanchun
    Zheng, Wuwei
    Tang, Xingxue
    Xing, Minglu
    Zhang, Yubao
    Zhu, Yuanhui
    ENGINEERING FAILURE ANALYSIS, 2022, 142
  • [7] Investigation of crack propagation characteristics in clinched joints under different failure modes
    Lu, Yan
    Hu, Yanghu
    Chen, Chao
    THIN-WALLED STRUCTURES, 2025, 212
  • [8] Deformation and failure characteristics of soil mass under different stress paths
    Hubei University of Technology, Wuhan 430068, China
    不详
    Rock Soil Mech, 2006, 12 (2181-2185):
  • [9] Deformation and failure characteristics of soil mass under different stress paths
    Yang Xue-qiang
    Zhu Zhi-zheng
    Han Gao-sheng
    He Shi-xiu
    ROCK AND SOIL MECHANICS, 2006, 27 (12) : 2181 - 2185
  • [10] Experimental study on triaxial mechanics and failure characteristics of shale in different brine environments
    Yang S.
    Hong W.
    Sun B.
    Tang X.
    Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering, 2023, 45 (11): : 2217 - 2226