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Coal Mine Solid Waste Backfill Process in China: Current Status and Challenges

Author

Listed:
  • Lei Bo

    (School of Mechanical Electronic & Information Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

  • Shangqing Yang

    (School of Mechanical Electronic & Information Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

  • Yang Liu

    (School of Mechanical Electronic & Information Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

  • Zihang Zhang

    (School of Mechanical Electronic & Information Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

  • Yiying Wang

    (School of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, China)

  • Yanwen Wang

    (School of Mechanical Electronic & Information Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

Abstract

Coal mine solid waste backfill is a coal mining method employed to safeguard subterranean and surface geological formations, as well as water resources, against impairment. It stands as a pivotal technical approach for realizing ecologically sustainable mining endeavors, aiming to address China’s predicament of ’three down’ coal pressure, coal gangue emissions, and land resource scarcity. This manuscript delves into an in-depth exploration of the evolution and research status pertaining to solid backfill technology, encompassing backfill materials, rock mechanics, backfill processes, and their application across China’s coal sector. The developmental challenges and technical intricacies linked to solid backfill technology within coal mines are meticulously scrutinized. Building upon these challenges and complexities, this study sets forth a progressive trajectory for solid backfill technology within the contemporary era. This trajectory envisions the synchronized advancement of novel solid backfill materials, intelligent surveillance and regulation methodologies, and machine learning technologies for backfill quality assessment. By doing so, the overarching aim of achieving superlative quality, heightened efficiency, and automation in solid backfill practices can be effectively realized.

Suggested Citation

  • Lei Bo & Shangqing Yang & Yang Liu & Zihang Zhang & Yiying Wang & Yanwen Wang, 2023. "Coal Mine Solid Waste Backfill Process in China: Current Status and Challenges," Sustainability, MDPI, vol. 15(18), pages 1-46, September.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:18:p:13489-:d:1236018
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    References listed on IDEAS

    as
    1. Qiang Zhang & Jixiong Zhang & Zhongya Wu & Yang Chen, 2019. "Overview of Solid Backfilling Technology Based on Coal-Waste Underground Separation in China," Sustainability, MDPI, vol. 11(7), pages 1-20, April.
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    Cited by:

    1. Lei Bo & Zihang Zhang & Yang Liu & Shangqing Yang & Yanwen Wang & Yiying Wang & Xuanrui Zhang, 2024. "Research on Path Planning Method of Solid Backfilling and Pushing Mechanism Based on Adaptive Genetic Particle Swarm Optimization," Mathematics, MDPI, vol. 12(3), pages 1-27, February.

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