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：
中国博士后科学基金; 中国国家自然科学基金;
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
  • [41] Mechanical response and energy dissipation mechanism of closed single fractured sandstone under different confining pressures
    Yu H.
    Liu S.
    Jia H.
    Wang S.
    Caikuang yu Anquan Gongcheng Xuebao/Journal of Mining and Safety Engineering, 2020, 37 (02): : 385 - 393
  • [42] Experimental Research of Fine Sandstone Strength and Deformation Characteristics under Different Confining and Hydraulic Pressure
    Liu Zaibin
    ADVANCES IN CIVIL AND INDUSTRIAL ENGINEERING, PTS 1-4, 2013, 353-356 : 562 - 570
  • [43] Characteristic analysis and fractal model of the gas-water relative permeability of coal under different confining pressures
    Zhang, Xiaoyang
    Wu, Caifang
    Liu, Shunxi
    JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2017, 159 : 488 - 496
  • [44] Strain localization characteristics of dense Toyoura sand in plane strain compression tests under different confining pressures
    Tsutsumi, Y.
    Koseki, J.
    Sato, T.
    DEFORMATION CHARACTERISTICS OF GEOMATERIALS, VOLS 1 AND 2, 2008, : 365 - 370
  • [45] An experimental study of fractured sandstone permeability after high-temperature treatment under different confining pressures
    Ding, Qi-Le
    Ju, Feng
    Song, Shuai-Bing
    Yu, Bang-Yong
    Ma, Dan
    JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 2016, 34 : 55 - 63
  • [46] An experimental study on deformation and failure mechanical behavior of granite containing a single fissure under different confining pressures
    Yang, Sheng-Qi
    Huang, Yan-Hua
    ENVIRONMENTAL EARTH SCIENCES, 2017, 76 (10)
  • [47] Effect of Loading Rate and Confining Pressure on Strength and Energy Characteristics of Mudstone under Pre-Cracking Damage
    Zheng, Hanghang
    Ma, Zhenqian
    Zhou, Lang
    Zhang, Dongyue
    Liang, Xuchao
    ENERGIES, 2022, 15 (10)
  • [48] Investigation of pore structure changes in Mesozoic water-rich sandstone induced by freeze-thaw process under different confining pressures using digital rock technology
    Liu, Bo
    Ma, Yongjun
    Liu, Nian
    Han, Yanhui
    Li, Dongyang
    Deng, Helang
    COLD REGIONS SCIENCE AND TECHNOLOGY, 2019, 161 : 137 - 149
  • [49] Deformation characteristics of sandstones during cyclic loading and unloading with varying lower limits of stress under different confining pressures
    Peng, Kang
    Zhou, Jiaqi
    Zou, Quanle
    Yan, Fazhi
    INTERNATIONAL JOURNAL OF FATIGUE, 2019, 127 : 82 - 100
  • [50] Experimental study on strength and deformation of filling materials of super-high dams with wide confining pressures under loading and unloading conditions
    Ling H.
    Chen S.-S.
    Zhai Y.-C.
    Fu H.
    Shi B.-X.
    Wang F.
    Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering, 2021, 43 (01): : 27 - 33
12345