IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2019i1p95-d301329.html
   My bibliography  Save this article

Characteristics of Roof Ground Subsidence While Applying a Continuous Excavation Continuous Backfill Method in Longwall Mining

Author

Listed:
  • Yihe Yu

    (School of Energy, Xi’an University of Science and Technology, Xi’an 710054, China
    State Key Laboratory of Coal Resources and Mine Safety, China University of Mining and Technology, Xuzhou 221116, China)

  • Liqiang Ma

    (School of Energy, Xi’an University of Science and Technology, Xi’an 710054, China
    State Key Laboratory of Coal Resources and Mine Safety, China University of Mining and Technology, Xuzhou 221116, China)

  • Dongsheng Zhang

    (State Key Laboratory of Coal Resources and Mine Safety, China University of Mining and Technology, Xuzhou 221116, China)

Abstract

Activities of traditional longwall mining will result in ground subsidence and therefore cause issues such as damages to buildings and farmlands, water pollution and loss, and potential ecological and environmental problems in the mining region. With advantages of the longwall backfill mining method, as well as the room and pillar mining method, a continuous excavation and continuous backfill (CECB) method in longwall mining is recommended to effectively control the ground subsidence. In this method, mining roadways (MRs) are initially planned in a panel, and then they are excavated and backfilled in several stages until the whole panel is mined out and backfilled. According to the geologic conditions of an underground coal mine, and the elastic foundation beam theory, a mechanical model was built to study the subsidence of the roof while using this new mining method. In addition, methods to calculate roof subsidence in various stages in CECB were also provided. The mechanical parameters of backfilling materials, which were used in the theoretical calculation and the numerical analysis for mutual check, were defined through analyzing the stability conditions of the coal pillars and the filling bodies. The control effect for the ground subsidence of using the newly proposed mining method was analyzed based on both simulation results and site monitoring results, including the ground subsidence, horizontal displacement, tilt, curvature and horizontal strain. This research could provide suggestions to effectively control ground subsidence for a mine site with similar geologic conditions.

Suggested Citation

  • Yihe Yu & Liqiang Ma & Dongsheng Zhang, 2019. "Characteristics of Roof Ground Subsidence While Applying a Continuous Excavation Continuous Backfill Method in Longwall Mining," Energies, MDPI, vol. 13(1), pages 1-20, December.
    • Handle: RePEc:gam:jeners:v:13:y:2019:i:1:p:95-:d:301329
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/1/95/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/13/1/95/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Yang Yu & Shen-en Chen & Ka-zhong Deng & Hong-dong Fan, 2017. "Long-Term Stability Evaluation and Pillar Design Criterion for Room-and-Pillar Mines," Energies, MDPI, vol. 10(10), pages 1-13, October.
    2. Nan Zhou & Jixiong Zhang & Hao Yan & Meng Li, 2017. "Deformation Behavior of Hard Roofs in Solid Backfill Coal Mining Using Physical Models," Energies, MDPI, vol. 10(4), pages 1-20, April.
    3. Shuokang Wang & Liqiang Ma, 2019. "Characteristics and Control of Mining Induced Fractures above Longwall Mines Using Backfilling," Energies, MDPI, vol. 12(23), pages 1-24, December.
    4. Shaojie Chen & Dawei Yin & Fengwei Cao & Yong Liu & Kaiqiang Ren, 2016. "An overview of integrated surface subsidence-reducing technology in mining areas of China," 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. 81(2), pages 1129-1145, March.
    5. Yihe Yu & Liqiang Ma, 2019. "Application of Roadway Backfill Mining in Water-Conservation Coal Mining: A Case Study in Northern Shaanxi, China," Sustainability, MDPI, vol. 11(13), pages 1-22, July.
    6. Shaojie Chen & Dawei Yin & Fengwei Cao & Yong Liu & Kaiqiang Ren, 2016. "An overview of integrated surface subsidence-reducing technology in mining areas of China," 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. 81(2), pages 1129-1145, March.
    7. Yanli Huang & Jixiong Zhang & Wei Yin & Qiang Sun, 2017. "Analysis of Overlying Strata Movement and Behaviors in Caving and Solid Backfilling Mixed Coal Mining," Energies, MDPI, vol. 10(7), pages 1-16, July.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Hengjie Luan & Yujing Jiang & Huili Lin & Yahua Wang, 2017. "A New Thin Seam Backfill Mining Technology and Its Application," Energies, MDPI, vol. 10(12), pages 1-16, December.
    2. Krzysztof Skrzypkowski, 2021. "Determination of the Backfilling Time for the Zinc and Lead Ore Deposits with Application of the BackfillCAD Model," Energies, MDPI, vol. 14(11), pages 1-19, May.
    3. Yujun Xu & Liqiang Ma & Ichhuy NGO & Jiangtao Zhai, 2022. "Continuous Extraction and Continuous Backfill Mining Method Using Carbon Dioxide Mineralized Filling Body to Preserve Shallow Water in Northwest China," Energies, MDPI, vol. 15(10), pages 1-24, May.
    4. Xingdong Zhao & Qiankun Zhu, 2020. "Analysis of the surface subsidence induced by sublevel caving based on GPS monitoring and numerical simulation," 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. 103(3), pages 3063-3083, September.
    5. Junwen Cao & Ting Liu & Yu Shi & Baiquan Lin & Jiahao Shen & Youping Xu & Xiangming Gong & Yanchi Liu, 2023. "Strata Movement of Overburden-Separation Grouting Working Face and Its Influence on Gas Emission during Mining," Sustainability, MDPI, vol. 15(17), pages 1-19, August.
    6. Wenhao Cao & Xufeng Wang & Peng Li & Dongsheng Zhang & Chundong Sun & Dongdong Qin, 2018. "Wide Strip Backfill Mining for Surface Subsidence Control and Its Application in Critical Mining Conditions of a Coal Mine," Sustainability, MDPI, vol. 10(3), pages 1-16, March.
    7. Ming Li & Yueguan Yan & Huayang Dai & Zhaojiang Zhang, 2023. "Study on Rock and Surface Subsidence Laws of Super-High Water Material Backfilling and Mining Technology: A Case Study in Hengjian Coal Mine," Sustainability, MDPI, vol. 15(11), pages 1-22, May.
    8. Yujun Xu & Liqiang Ma & Ichhuy NGO & Jiangtao Zhai, 2022. "Prediction of the Height of Water-Conductive Fractured Zone under Continuous Extraction and Partial Backfill Mining Method—A Case Study," Sustainability, MDPI, vol. 14(11), pages 1-30, May.
    9. Hao Li & Boyang Zhang & Haibo Bai & Jianjun Wu & Qingbin Meng & Ning Xiao & Feng Li & Guangming Wu, 2018. "Surface Water Resource Protection in a Mining Process under Varying Strata Thickness—A Case Study of Buliangou Coal Mine, China," Sustainability, MDPI, vol. 10(12), pages 1-16, December.
    10. Wenqi Huo & Huaizhan Li & Guangli Guo & Yuezong Wang & Yafei Yuan, 2023. "Surface Subsidence Prediction Method for Backfill Mining in Shallow Coal Seams with Hard Roofs for Building Protection," Sustainability, MDPI, vol. 15(22), pages 1-18, November.
    11. Yujun Xu & Liqiang Ma & Naseer Muhammad Khan, 2020. "Prediction and Maintenance of Water Resources Carrying Capacity in Mining Area—A Case Study in the Yu-Shen Mining Area," Sustainability, MDPI, vol. 12(18), pages 1-27, September.
    12. Jinchao Li & Fei Gao & Jiaguo Lu, 2019. "An application of InSAR time-series analysis for the assessment of mining-induced structural damage in Panji Mine, China," 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. 97(1), pages 243-258, May.
    13. Wen Zhai & Wei Li & Yanli Huang & Shenyang Ouyang & Kun Ma & Junmeng Li & Huadong Gao & Peng Zhang, 2020. "A Case Study of the Water Abundance Evaluation of Roof Aquifer Based on the Development Height of Water-Conducting Fracture Zone," Energies, MDPI, vol. 13(16), pages 1-16, August.
    14. Wenlong Shen & Meng Wang & Zhengzheng Cao & Faqiang Su & Hua Nan & Xuelong Li, 2019. "Mining-Induced Failure Criteria of Interactional Hard Roof Structures: A Case Study," Energies, MDPI, vol. 12(15), pages 1-17, August.
    15. Jun Guo & Guorui Feng & Pengfei Wang & Tingye Qi & Xiaorong Zhang & Yonggan Yan, 2018. "Roof Strata Behavior and Support Resistance Determination for Ultra-Thick Longwall Top Coal Caving Panel: A Case Study of the Tashan Coal Mine," Energies, MDPI, vol. 11(5), pages 1-19, April.
    16. Benedetta Antonielli & Alessandra Sciortino & Stefano Scancella & Francesca Bozzano & Paolo Mazzanti, 2021. "Tracking Deformation Processes at the Legnica Glogow Copper District (Poland) by Satellite InSAR—I: Room and Pillar Mine District," Land, MDPI, vol. 10(6), pages 1-20, June.
    17. Yao Lu & Ning Jiang & Wei Lu & Meng Zhang & Dezhi Kong & Mengtang Xu & Changxiang Wang, 2022. "Experimental Study on Deformation Characteristics of Gangue Backfill Zone under the Condition of Natural Water in Deep Mines," Sustainability, MDPI, vol. 14(23), pages 1-16, November.
    18. Adam Smoliński & Dmyto Malashkevych & Mykhailo Petlovanyi & Kanay Rysbekov & Vasyl Lozynskyi & Kateryna Sai, 2022. "Research into Impact of Leaving Waste Rocks in the Mined-Out Space on the Geomechanical State of the Rock Mass Surrounding the Longwall Face," Energies, MDPI, vol. 15(24), pages 1-16, December.
    19. Weiyong Lu & Changchun He & Xin Zhang, 2020. "Height of overburden fracture based on key strata theory in longwall face," PLOS ONE, Public Library of Science, vol. 15(1), pages 1-15, January.
    20. Krzysztof Skrzypkowski, 2020. "Decreasing Mining Losses for the Room and Pillar Method by Replacing the Inter-Room Pillars by the Construction of Wooden Cribs Filled with Waste Rocks," Energies, MDPI, vol. 13(14), pages 1-20, July.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:13:y:2019:i:1:p:95-:d:301329. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.