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Study on Surface Subsidence Characteristics Based on Three-Dimensional Test Device for Simulating Rock Strata and Surface Movement

Author

Listed:
  • Xingyin Ma

    (College of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, China
    State Key Laboratory of Mining Disaster Prevention and Control Co-Founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China)

  • Zhiyong Fu

    (College of Mining, Liaoning Technical University, Fuxin 123000, China)

  • Yurong Li

    (College of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, China
    State Key Laboratory of Mining Disaster Prevention and Control Co-Founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China)

  • Pengfei Zhang

    (College of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, China
    State Key Laboratory of Mining Disaster Prevention and Control Co-Founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China)

  • Yongqiang Zhao

    (State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, Beijing 102209, China)

  • Guoping Ma

    (Qianjiaying Mining Branch, Kailuan (Group) Co., Ltd., Tangshan 063000, China)

Abstract

The main functions of a three-dimensional test device for simulating rock formations and surface movement affected by underground coal mining were described in detail, and a series of similar related tests were carried out. The device consisted of an outer frame, a pressurization unit, a pulling unit, and a coal seam simulation portion. Using this test device, supported by monitoring methods such as the three-dimensional laser scanner method, a model test study on the surface subsidence characteristics caused by coal seam mining was carried out. Combined with the field measurements, the transfer law of surface subsidence caused by coal seam mining was revealed, and the whole surface subsidence response process was analyzed. The experimental results show that the subsidence caused by mining disturbances below the coal seam accounts for 79.3% of the total subsidence, which is the dominant factor of the total surface subsidence. After long-term surface observations, surface subsidence can be divided into four stages after coal mining, and the settlement value of the obvious settlement stage accounts for more than 60% of the total settlement value. The above test results fully reflect the feasibility and practicality of the three-dimensional test device to simulate rock strata and surface movement and provide a new experimental research tool that can be used to further study the surface subsidence characteristics and control caused by coal mining.

Suggested Citation

  • Xingyin Ma & Zhiyong Fu & Yurong Li & Pengfei Zhang & Yongqiang Zhao & Guoping Ma, 2022. "Study on Surface Subsidence Characteristics Based on Three-Dimensional Test Device for Simulating Rock Strata and Surface Movement," Energies, MDPI, vol. 15(5), pages 1-16, March.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:5:p:1927-:d:765454
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    References listed on IDEAS

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    1. Miloš V. Gligorić & Zoran M. Gligorić & Čedomir R. Beljić & Suzana M. Lutovac & Vesna M. Damnjanović, 2019. "Long-Term Room and Pillar Mine Production Planning Based on Fuzzy 0-1 Linear Programing and Multicriteria Clustering Algorithm with Uncertainty," Mathematical Problems in Engineering, Hindawi, vol. 2019, pages 1-26, June.
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    Cited by:

    1. Longjun Dong & Yanlin Zhao & Wenxue Chen, 2022. "Mining Safety and Sustainability—An Overview," Sustainability, MDPI, vol. 14(11), pages 1-6, May.

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