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Experimental Study on Infrared Temperature Characteristics and Failure Modes of Marble with Prefabricated Holes under Uniaxial Compression

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  • Yanyan Peng

    (School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
    Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing 312000, China)

  • Qunchao Lin

    (School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
    Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing 312000, China)

  • Manchao He

    (Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing 312000, China
    State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

  • Chun Zhu

    (School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
    Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing 312000, China
    School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China)

  • Haijiang Zhang

    (School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
    Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing 312000, China)

  • Pengfei Guo

    (School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
    Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing 312000, China)

Abstract

In rock engineering, it is of great significance to study the failure mechanical behavior of rocks with holes. Using a combination of experiment and infrared detection, the strength, deformation, and infrared temperature evolution behavior of marble with elliptical holes under uniaxial compression were studied. The test results showed that as the vertical axis b of the ellipse increased, the peak intensity first decreased and then increased, and the minimum value appeared when the horizontal axis was equal to the vertical axis. The detection results of the infrared thermal imager showed that the maximum temperature, minimum temperature, and average temperature of the observation area in the loading stage showed a downward trend, and the range of change was between 0.02 °C and 1 °C. It was mainly due to the accumulation of energy in the loading process of the rock sample that caused the surface temperature of the specimen to decrease. In the brittle failure stage, macroscopic cracks appeared on the surface of the rock sample, which caused the energy accumulated inside to dissipate, thereby increasing the maximum temperature and average temperature of the rock sample. The average temperature increase was about 0.05 °C to about 0.19 °C. The evolution of infrared temperature was consistent with the mechanical characteristics of rock sample failure, indicating that infrared thermal imaging technology can provide effective monitoring for the study of rock mechanics. The research in this paper provides new ideas for further research on the basic characteristics of rock failure under uniaxial compression.

Suggested Citation

  • Yanyan Peng & Qunchao Lin & Manchao He & Chun Zhu & Haijiang Zhang & Pengfei Guo, 2021. "Experimental Study on Infrared Temperature Characteristics and Failure Modes of Marble with Prefabricated Holes under Uniaxial Compression," Energies, MDPI, vol. 14(3), pages 1-16, January.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:3:p:713-:d:490027
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    References listed on IDEAS

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    1. Bin Xu & Shuning Dong & Shangxian Yin & Shuxia Li & Yanling Xu & Zhenxue Dai, 2021. "Analysis of Crack Initiation and Propagation Thresholds of Inclined Cracks under High-Pressure Grouting in Ordovician Limestone," Energies, MDPI, vol. 14(2), pages 1-14, January.
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    Cited by:

    1. Chun Zhu & Jiabing Zhang & Junlong Shang & Dazhong Ren & Manchao He, 2023. "Advances in Multifield and Multiscale Coupling of Rock Engineering," Energies, MDPI, vol. 16(10), pages 1-6, May.
    2. Pengze Liu & Lin Gao & Pandong Zhang & Guiyi Wu & Yongyin Wang & Ping Liu & Xiangtao Kang & Zhenqian Ma & Dezhong Kong & Sen Han, 2022. "Physical Similarity Simulation of Deformation and Failure Characteristics of Coal-Rock Rise under the Influence of Repeated Mining in Close Distance Coal Seams," Energies, MDPI, vol. 15(10), pages 1-13, May.

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