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Evaluation method of local failure characteristics for joint based on white light scanning technology

Author

Listed:
  • Leibo Song

    (Shaoxing University
    Shaoxing University)

  • Dan Zhang

    (Shaoxing University
    Shaoxing University)

  • Gang Wang

    (Shaoxing University
    Shaoxing University)

  • ShiGui Du

    (Ningbo University)

  • Gaojian Hu

    (Shaoxing University
    Shaoxing University)

  • Guansheng Han

    (Shaoxing University
    Shaoxing University)

  • Xingkai Wang

    (Shaoxing University
    Shaoxing University)

  • Xiqi Liu

    (Wuhan University)

Abstract

Joint is an important factor affecting the stability of engineering rock mass. To quantitatively analyze the local failure characteristics, the point cloud data of joint before and after shear were obtained by 3D white light scanning technology. Firstly, the problem of cloud surface skew of point cloud data was solved by constructing rotation matrix and translation matrix, and the datum of joint was determined. Then, according to the marked points and the undamaged area, the joint point cloud data before and after shear are aligned, and the point cloud data with equal spacing were obtained by interpolation algorithm. Finally, a 3D description method of joint local failure characteristics is proposed. The proposed method can determine the scope of surface failure of joint, quantitatively analyze the locality of its failure characteristics, provide data support for distinguishing the types of shear failure and offer theoretical basis for further research on shear mechanism.

Suggested Citation

  • Leibo Song & Dan Zhang & Gang Wang & ShiGui Du & Gaojian Hu & Guansheng Han & Xingkai Wang & Xiqi Liu, 2023. "Evaluation method of local failure characteristics for joint based on white light scanning technology," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 116(1), pages 97-110, March.
    • Handle: RePEc:spr:nathaz:v:116:y:2023:i:1:d:10.1007_s11069-022-05665-5
    DOI: 10.1007/s11069-022-05665-5
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    References listed on IDEAS

    as
    1. Guansheng Han & Yu Zhou & Richeng Liu & Qiongqiong Tang & Xingkai Wang & Leibo Song, 2022. "Influence of surface roughness on shear behaviors of rock joints under constant normal load and stiffness boundary conditions," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 112(1), pages 367-385, May.
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