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Study on Regional Strata Movement during Deep Mining of Erdos Coal Field and Its Control

Author

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  • Guojian Zhang

    (School of Surveying and Geo-Informatics, Shandong Jianzhu University, Jinan 250101, China
    Post-Doctoral Workstation of Technology Research Institute, Shandong Energy Group Co., Ltd., Jinan 250101, China
    School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China)

  • Zhiyang Wang

    (School of Surveying and Geo-Informatics, Shandong Jianzhu University, Jinan 250101, China)

  • Guangli Guo

    (School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China)

  • Wei Wei

    (Post-Doctoral Workstation of Technology Research Institute, Shandong Energy Group Co., Ltd., Jinan 250101, China)

  • Fugang Wang

    (Yankuang Energy (Erdos) Co., Ltd., Kangbashi District, Ordos 017010, China)

  • Leilei Zhong

    (Yingpanhao Coal Co., Ltd., Ordos 017300, China)

  • Yaqiang Gong

    (School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China)

Abstract

Disasters such as rock bursts and mine earthquakes became increasingly serious with the increase in mining depth in Erdos Coal Field and became serious problems that restrict high-strength continuous mining of coal mines. In this study, strata movement and energy polling distribution of ultrathick weak-bonding sandstone layers were controlled by the local filling–caving multi-faces coordinated mining technique, which was based on the analysis of subsidence and overlying structural characteristics in the Yingpanhao mining area. Moreover, the influencing factors and the control effect laws were investigated. Surface subsidence and energy polling distribution control effects of different mining modes were compared, which confirmed the superiority of local filling based on the main key stratum. According to the results, the maximum surface subsidence velocity of the first mining face was 1.24 mm/d, which indicates the presence of a logistic functional relationship between the mining degree and subsidence factors. When the mining degree was close to full mining, the practical surface subsidence was smaller than the corresponding logistic functional value. The largest influencing factor for the strata movement control effect of partial filling mining based on the main key stratum was the width of the caving face, followed by the filling ratio, section pillar width, and width of the filling face, successively. With respect to the influencing degree on the energy polling distribution of partial filling mining based on the main key stratum, the order followed as section pillar width > filling ratio > caving working face > width of backfilling working face. Additionally, the comparative analysis from the perspectives of control effect, resource utilization, and cost-effectiveness demonstrated that partial filling mining based on the main key stratum was one of the techniques with high cost-effectiveness in controlling strata movement and relieving rock bursts, mining earthquakes, and subsidence disasters.

Suggested Citation

  • Guojian Zhang & Zhiyang Wang & Guangli Guo & Wei Wei & Fugang Wang & Leilei Zhong & Yaqiang Gong, 2022. "Study on Regional Strata Movement during Deep Mining of Erdos Coal Field and Its Control," IJERPH, MDPI, vol. 19(22), pages 1-32, November.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:22:p:14902-:d:970904
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    References listed on IDEAS

    as
    1. Guojian Zhang & Guangli Guo & Yi’nan Lv & Yaqiang Gong, 2020. "Study on the Strata Movement Rule of the Ultrathick and Weak Cementation Overburden in Deep Mining by Similar Material Simulation: A Case Study in China," Mathematical Problems in Engineering, Hindawi, vol. 2020, pages 1-21, April.
    2. Guojian Zhang & Guangli Guo & Shikai Shen & Qingkun Guo & Sifeng Zhang & Jianfeng Wu, 2021. "Numerical Simulation Study of the Strata Movement Rule of Deep Mining with the Super-Thick and Weak Cementation Overburden: A Case Study in China," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-20, November.
    3. Xiaolong Li & Changwu Liu & Yang Liu & Hui Xie, 2017. "The Breaking Span of Thick and Hard Roof Based on the Thick Plate Theory and Strain Energy Distribution Characteristics of Coal Seam and Its Application," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-14, September.
    4. Ebrahim Ghasemi & Mohammad Ataei & Kourosh Shahriar, 2014. "Prediction of global stability in room and pillar coal mines," 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. 72(2), pages 405-422, June.
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    1. Shuai Jiao & Xiaojuan Li & Jie Yu & Mingyuan Lyu & Ke Zhang & Yuehui Li & Pengyuan Shi, 2024. "Multi-Scale Analysis of Surface Building Density and Land Subsidence Using a Combination of Wavelet Transform and Spatial Autocorrelation in the Plains of Beijing," Sustainability, MDPI, vol. 16(7), pages 1-23, March.
    2. Liyang Bai & Changlong Liao & Changxiang Wang & Meng Zhang & Fanbao Meng & Mingjin Fan & Baoliang Zhang, 2022. "Study on Height Prediction of Water Flowing Fractured Zone in Deep Mines Based on Weka Platform," Sustainability, MDPI, vol. 15(1), pages 1-15, December.
    3. Zhaowen Du & Deyou Chen & Xuelong Li & Yong Jian & Weizhao Zhang & Dingding Zhang & Yongfeng Tian, 2024. "Study on the Partial Paste Backfill Mining Method in a Fully Mechanized Top-Coal Caving Face: Case Study from a Coal Mine, China," Sustainability, MDPI, vol. 16(11), pages 1-24, May.

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