Spalling strength of rock under different static pre-confining pressures

被引：52
|
作者：
Li Xibing [1 ]
Ming Tao [1 ,2 ]
Wu Chengqing [3 ]
Kun Du [1 ]
Wu Qiuhong [1 ]
机构：
[1] Cent South Univ, Sch Resources & Safety Engn, Changsha, Hunan, Peoples R China
[2] Western Min Co Ltd, Postdoctoral Sci Res Workstn, Xining, Qinghai, Peoples R China
[3] Univ Technol Sydney, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia
来源：
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | 2017年 / 99卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Hopkinson bar; Spalling strength; Confining pressure; Laser detector system; DYNAMIC TENSILE-STRENGTH; SEMICIRCULAR BEND TECHNIQUE; CONCRETE-LIKE MATERIALS; FRACTURE ENERGY; ENHANCEMENT; PARAMETERS; STRESS; RATES;
D O I：
10.1016/j.ijimpeng.2016.10.001
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A testing method of spalling strength at different static pre-confining pressure is proposed in this paper. Using a modified split Hopkinson bar facility, a static pre-confining pressure was loaded before dynamic loading. The pull-back method is used to calculate the spalling strength and the free surface velocities of the specimen were measured by a laser detector system. The experimental results indicate that the spalling strength is related to the static pre-confining pressures. When the impact loading and rate effect are almost the same, the results demonstrated that the spalling strength decreases with an increase in the confining pressure. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：69 / 74
页数：6
相关论文
共 50 条
  • [1] Estimation of spalling strength of sandstone under different pre-confining pressure by experiment and numerical simulation
    Zhao, Huatao
    Tao, Ming
    Li, Xibing
    Cao, Wenzhuo
    Wu, Chengqing
    INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2019, 133
  • [2] Characters of the deformation and strength under different confining pressures on sedimentary rock
    Meng, Zhaoping
    Peng, Suping
    Ling, Biaocan
    Meitan Xuebao/Journal of China Coal Society, 2000, 25 (01): : 15 - 18
  • [3] Investigation on the Deformation and Strength Characteristics of Rock Salt Under Different Confining Pressures
    Wei Liu
    Xiong Zhang
    Haoran Li
    Jie Chen
    Geotechnical and Geological Engineering, 2020, 38 : 5703 - 5717
  • [4] Investigation on the Deformation and Strength Characteristics of Rock Salt Under Different Confining Pressures
    Liu, Wei
    Zhang, Xiong
    Li, Haoran
    Chen, Jie
    GEOTECHNICAL AND GEOLOGICAL ENGINEERING, 2020, 38 (06) : 5703 - 5717
  • [5] Strength and deformation behavior of columnar jointed rock masses under different confining pressures
    Zhi-nan Lin
    Hai-feng Long
    Wei-ya Xu
    Ru-bin Wang
    Shi-hong Feng
    Arabian Journal of Geosciences, 2022, 15 (17)
  • [6] A unified rock damage constitutive model under different confining pressures
    Liu, Dongqiao
    Guo, Yunpeng
    He, Manchao
    INTERNATIONAL JOURNAL OF DAMAGE MECHANICS, 2025,
  • [7] Experimental research on limestone of strength and deformability under different confining pressures
    Xiong Zan-min
    Gao Quan-chen
    Wu Ai-qing
    Hu Jian-min
    ROCK AND SOIL MECHANICS, 2007, 28 : 111 - 113
  • [8] Effect of gravel on rock failure in glutenite reservoirs under different confining pressures
    JianTong Liu
    JianBo Wang
    HongKui Ge
    Wei Zhou
    BeiBei Chen
    XiaoDi Li
    XianJie Xue
    SenLin Luo
    Petroleum Science, 2023, 20 (05) : 3022 - 3036
  • [9] Effect of gravel on rock failure in glutenite reservoirs under different confining pressures
    Liu, Jian-Tong
    Wang, Jian-Bo
    Ge, Hong-Kui
    Zhou, Wei
    Chen, Bei-Bei
    Li, Xiao-Di
    Xue, Xian-Jie
    Luo, Sen-Lin
    PETROLEUM SCIENCE, 2023, 20 (05) : 3022 - 3036
  • [10] Evolution of rattlers under different confining pressures and its influence on shear strength
    Hu, Tiantian
    Ling, Daosheng
    Tang, Yao
    Wang, Xiukai
    Wang, Jing
    TRANSPORTATION GEOTECHNICS, 2024, 44
12345