ISSN 1009-6248CN 61-1149/P Bimonthly

Supervisor:China Geological Survey

Sponsored by:XI'an Center of China Geological Survey
Geological Society of China

    Advance Search
    MAO Zhengjun, BI Yinli, LI Cheng, et al. Study on Failure Mode and Shape Optimization of High and Steep Slope of Open-Pit Limestone Mining Area in Weibei[J]. Northwestern Geology, 2021, 54(4): 211-226. DOI: 10.19751/j.cnki.61-1149/p.2021.04.017
    Citation: MAO Zhengjun, BI Yinli, LI Cheng, et al. Study on Failure Mode and Shape Optimization of High and Steep Slope of Open-Pit Limestone Mining Area in Weibei[J]. Northwestern Geology, 2021, 54(4): 211-226. DOI: 10.19751/j.cnki.61-1149/p.2021.04.017

    Study on Failure Mode and Shape Optimization of High and Steep Slope of Open-Pit Limestone Mining Area in Weibei

    • In order to study the failure mode and shape optimization of high and steep slope in Weibei open-pit limestone mining area, this paper takes Baoji and Xianyang areas of Weibei as the research areas. Through the collaborative work of remote sensing image, UAV aerial photography technology and field investigation, the characteristics of high and steep limestone slope are summarized, and the failure mode and stability influencing factors of the slope are analyzed. The optimization scheme of slope shape is put forward by using FLAC3D numerical simulation software through the orthogonal test. The results show that the failure modes of high and steep limestone slopes in Baoji and Xianyang areas are bedding sliding failure, wedge failure and toppling failure; the influencing factors of stability are lithology, rock mass structure and slope shape; the optimal combination of each factor was selected using as few orthogonal test as possible. Finally, the optimization parameter of the 80 meters high slope shape is slope 65°; the step number is 10 and the step width is 4m. This study provides references for the study of failure mode, slope shape optimization and ecological restoration of high and steep slope.
    • loading

    Catalog

      Turn off MathJax
      Article Contents

      /

      DownLoad:  Full-Size Img  PowerPoint
      Return
      Return