Long-Term Monitoring and Early Warning of Coal Mine Underground Reservoirs—A Case Study in Shigetai Coal Mine

Ersheng Zha, Peng Li, Yang Wu (), Baoyang Wu, Yong Zhang, Zhengdai Li and Zetian Zhang
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Ersheng Zha: State Key Laboratory of Water Resource Protection & Utilization in Coal Mining, National Institute of Low Carbon and Clean Energy, Beijing 102211, China
Peng Li: China Energy Shendong Coal Group, Co., Ltd., Yulin 719315, China
Yang Wu: State Key Laboratory of Water Resource Protection & Utilization in Coal Mining, National Institute of Low Carbon and Clean Energy, Beijing 102211, China
Baoyang Wu: State Key Laboratory of Water Resource Protection & Utilization in Coal Mining, National Institute of Low Carbon and Clean Energy, Beijing 102211, China
Yong Zhang: State Key Laboratory of Water Resource Protection & Utilization in Coal Mining, National Institute of Low Carbon and Clean Energy, Beijing 102211, China
Zhengdai Li: State Key Laboratory of Water Resource Protection & Utilization in Coal Mining, National Institute of Low Carbon and Clean Energy, Beijing 102211, China
Zetian Zhang: State Key Laboratory of Water Resource Protection & Utilization in Coal Mining, National Institute of Low Carbon and Clean Energy, Beijing 102211, China

Sustainability, 2024, vol. 16, issue 23, 1-27

Abstract: Coal mining is often associated with groundwater pollution and loss, and coal–water conflicts are becoming increasingly prominent in Western China. As a new way to protect mine water, coal mine underground reservoirs (CMURs) have effectively alleviated the water shortage problem in Western China. The CMURs have been in existence for 25 years, but field-monitoring studies on their long-term stability are rare. In this paper, we take the Shigetai coal mine in the Shendong mining area as the research background. Long-term observation of stress, deformation, seepage pressure, and other parameters of 22 dams in five goaves (31201–31205) of the Shigetai coal mine for the whole year of 2022 has been pioneeringly carried out. A novel early-warning model, which incorporates expert evaluations and real-time indicator fluctuations, is proposed to assess the stability of CMURs. The stability characteristics of coal pillar dams (CPDs) and artificial dams (ADs) of CMURs are evaluated by this model, proving the validity and applicability of this model. This model provides theoretical and methodological guidance for long-term monitoring and early-warning systems for CMURs in the Shendong mining area.

Keywords: coal pillar dam; artificial dam; coal mine underground reservoir; field monitoring; early-warning model (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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