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Development overview of paste backfill technology in China’s coal mines: a review

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Abstract

After years of development, paste backfill technology has become an important part of China’s green safety mine construction and coal green mining technology system in the new era. In this paper, the research status of paste backfill technology in China’s coal mines is expounded from the aspects of paste backfill materials, strata control theory, and paste backfill technological process. Based on the statistics of the distribution number of coal mines adopting paste backfill technology, several typical paste backfill mines are listed, and the parameters of backfill panel, geological conditions, and paste backfill effect are analyzed, the general conditions of applying paste backfill technology in coal mines are summarized. Finally, some problems in the application of paste backfill technology are pointed out, and the future development of backfill mining is prospected from the research and development of backfill materials, deep underground backfill mining, intelligent paste backfill, and other aspects. This paper provides a reference for a comprehensive and in-depth understanding of the current development status of paste backfill technology in China.

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The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Funding

This research was funded by China National Key Research and Development Program (2019YFC1904304), the Key Consulting Project of Chinese Academy of Engineering (2020-XZ-13) and the Research Project of Energy Research Institute of Hefei Comprehensive National Science Center (21KZS217).

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Authors and Affiliations

  1. State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mine, Anhui University of Science and Technology, Huainan, 232001, China

    Ke Yang, Xinyuan Zhao, Zhen Wei & Jiqiang Zhang

  2. Energy Research Institute of Hefei Comprehensive National Science Center (Anhui Energy Laboratory), Hefei Anhui, 230000, China

    Ke Yang

  3. Key Laboratory of Mining Coal Safety and Efficiently Constructed By Anhui Province and Ministry of Education, Anhui University of Science and Technology, Huainan, 232001, China

    Ke Yang, Xinyuan Zhao, Zhen Wei & Jiqiang Zhang

  4. School of Mining Engineering, Anhui University of Science and Technology, Huainan, 232001, China

    Ke Yang, Xinyuan Zhao, Zhen Wei & Jiqiang Zhang

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  1. Ke Yang
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  3. Zhen Wei
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  4. Jiqiang Zhang
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Ke Yang developed the idea for the study, Zhen Wei and Jiqiang Zhang designed the study, Xinyuan Zhao wrote the paper.

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Correspondence to Xinyuan Zhao.

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Yang, K., Zhao, X., Wei, Z. et al. Development overview of paste backfill technology in China’s coal mines: a review. Environ Sci Pollut Res 28, 67957–67969 (2021). https://doi.org/10.1007/s11356-021-16940-6

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