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Volume 43 Issue 4
Jul.  2024
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Article Navigation >  Bulletin of Geological Science and Technology  > 2024  >  43(4): 244-251
XIE Yuanhua, ZHANG Guowei, CAO Zongwei, MIAO Fasheng. Fractal characteristics of displacement and cracks in the Baishuihe landslide in the Three Gorges Reservoir Area[J]. Bulletin of Geological Science and Technology, 2024, 43(4): 244-251. doi: 10.19509/j.cnki.dzkq.tb20230166
Citation: XIE Yuanhua, ZHANG Guowei, CAO Zongwei, MIAO Fasheng. Fractal characteristics of displacement and cracks in the Baishuihe landslide in the Three Gorges Reservoir Area[J]. Bulletin of Geological Science and Technology, 2024, 43(4): 244-251. doi: 10.19509/j.cnki.dzkq.tb20230166
shu

Fractal characteristics of displacement and cracks in the Baishuihe landslide in the Three Gorges Reservoir Area

doi: 10.19509/j.cnki.dzkq.tb20230166
  • 1a.

    China University of Geosciences Press, China University of Geosciences(Wuhan), Wuhan 430074, China

  • 1b.

    Faculty of Engineering, China University of Geosciences(Wuhan), Wuhan 430074, China

  • 2.

    Qaidam Integrated Geological Exploration Institute of Qinghai Province, Golmud Qinghai 816099, China

  • 3.

    Xi'an Division of Surveying and Mapping, Xi'an 710054, China

More Information
  • Author Bio:

    XIE Yuanhua, E-mail: 898255228@qq.com

  • Corresponding author: MIAO Fasheng, E-mail: fsmiao@cug.edu.cn
  • Received Date: 29 Mar 2023
  • Accepted Date: 19 Apr 2023
  • Rev Recd Date: 10 Apr 2023
    Abstract
  • Objective

    Surface displacement and crack development are the most intuitive manifestations of landslide deformation and evolution. Therefore, revealing the characteristics and evolution stages of landslide deformation and failure through displacement monitoring and surface crack survey is highly practical.

    Methods

    In this study, the Baishuihe landslide in the Three Gorges Reservoir Area is selected as the research case, and monitoring data from 2003-2016 for this landslide are systematically collected and analyzed, taking monitoring points ZG93 and ZG118 as example. First, the fractal parameter Hurst index R/S analysis is carried out for the displacement data. Second, the multiple fractal dimensions of the displacement of the two monitoring points are calculated every year. Finally, the theory of stage matching of landslide cracks is introduced, and the crack fractal dimension of the Baishuihe landslide is determinated.

    Results

    The results show that there is a certain positive correlation between the landslide displacement sequences, and the fractal dimension H index of the two monitoring points is greater than 0.5. The evolution process of the Baishuihe landslide can be divided into a steady deformation state (from June 2003 to June 2007), an accelerated deformation state (from June 2007 to December 2009), and a steady deformation state (from December 2009 to December 2015). According to the matching law of crack stages, the development of the landslide is the initial deformation stage.

    Conclusion

    The research results have a certain guiding significance for revealing the evolutionary state of reservoir landslides.

     

    • The authors declare that no competing interests exist.
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