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ORIGINAL RESEARCH article

Front. Earth Sci.
Sec. Solid Earth Geophysics
Volume 13 - 2025 | doi: 10.3389/feart.2025.1517598
This article is part of the Research Topic Advanced Materials and Technologies for Sustainable Development of Underground Resources View all 25 articles

Research on the deformation and failure law and control technology of surrounding rock in the dense roadway area in footwall of normal fault

Provisionally accepted
Qing Ma Qing Ma 1,2Shangyu Bai Shangyu Bai 1*Ruixin Zhang Ruixin Zhang 1*Xuebin Li Xuebin Li 1Chengcheng Xie Chengcheng Xie 1,3*Xuesheng Liu Xuesheng Liu 1
  • 1 Shandong University of Science and Technology, Qingdao, China
  • 2 State Key Laboratory of Hydroscience and Engineering, Tsinghua University,, Beijing, China
  • 3 China Energy Construction Group Epply Co, Changsha, Anhui Province, China

The final, formatted version of the article will be published soon.

    In order to solve the problem of large deformation and failure of surrounding rock in the dense area in footwall of the normal fault, taking the F22 fault in the fourth mining area of Dashucun Coal Mine in Hebei Province as the research background, on-site investigation found hidden dangers such as roof caving and wall caving in the roadway. By using FLAC 3D numerical simulation method, the deformation and failure law of surrounding rock was obtained, and the influencing factors of surrounding rock deformation and failure were analyzed. Based on this, the advanced support of the working face and the support scheme of the dense area of the roadway were optimized. After the implementation of the programme, the results showed that, except for the belt rise , where the deformation of the surrounding rock was affected to some extent, the subsidence of the roof and the approach of two gangs in dense roadway areas was controlled to within 220 mm and 320 mm, respectively. So it proves that the surrounding rock conditions in the dense roadway areas meet the needs of the project.

    Keywords: Mine disaster, Deformation and control technology, Surrounding rock, Dense roadway area, Normal fault

    Received: 26 Oct 2024; Accepted: 02 Jan 2025.

    Copyright: © 2025 Ma, Bai, Zhang, Li, Xie and Liu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Shangyu Bai, Shandong University of Science and Technology, Qingdao, China
    Ruixin Zhang, Shandong University of Science and Technology, Qingdao, China
    Chengcheng Xie, Shandong University of Science and Technology, Qingdao, China

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