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Groundwater Environmental Impacts and Control Strategies of Coal Mining and Energy Development/Storage Activities

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Hydrogeology".

Deadline for manuscript submissions: 20 November 2025 | Viewed by 477

Special Issue Editors

School of Mines, China University of Mining and Technology, Xuzhou 221116, China
Interests: fluid dynamics in porous media; fractured reservoir characterization; numerical reservoir simulation; dynamic data analysis for geothermal/oil/gas wells; aquifer protection in coal mine area

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Guest Editor
College of Energy, Chengdu University of Technology, Chengdu 610059, China
Interests: fluid injection-induced fault reactivation and seismicity; coupled flow and geomechanics; numerical simulation; hydraulic fracturing diagnostic
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Guest Editor
School of Earth Resources, China University of Geosciences (Wuhan), Wuhan 430074, China
Interests: multiphase flow in porous media; phase behavior in nanopores; CO2 sequestration; compositional simulation; granular flow; reservoir simulation

Special Issue Information

Dear Colleagues,

With global energy development gradually shifting to deeper underground sources, the impacts on the groundwater environment have become increasingly prominent in energy development/storage activities, such as coal mining, geothermal energy development, carbon sequestration, and aquifer-based gas/thermal storage. Critical issues, including aquifer destruction, water resource depletion, water quality contamination, and surface ecological degradation, now pose significant challenges to the sustainable development of the energy industry. To address these global concerns, there is an urgent need to investigate the mechanisms and patterns of groundwater environmental impacts caused by energy development and storage activities, establish robust methodologies for water environmental impact assessment, and propose effective control and remediation strategies for groundwater resource loss and pollution. Therefore, this journal is launching a call for papers relating to the theme of “Groundwater Environmental Impacts and Control Strategies of Coal Mining and Energy Development/Storage Activities”. We invite submissions focusing on cutting-edge research, technological advancements, and engineering practices aimed at promoting the harmonious development of groundwater environmental protection and energy development/storage.

Dr. Yonghui Wu
Dr. Lijun Liu
Dr. Jingwei Huang
Guest Editors

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Keywords

  • aquifer-protected coal mining
  • water conservation mining technology
  • sustainable development of geothermal energy
  • aquifer gas/thermal storage
  • underground water/gas/thermal reservoir in mine goaf
  • evolution of groundwater dynamic fields
  • recycling technology and pollution control of mine water
  • dynamic monitoring and remediation of groundwater
  • coupled flow in fractured porous media
  • rock mechanics under THMC multi-field coupling
  • fracture initiation and propagation
  • low-carbon treatment and resource utilization of mine water

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Published Papers (1 paper)

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Research

24 pages, 3847 KiB  
Article
Evaluation of Water-Inrush Risk and Water-Preserved Mining Under Goaf Water
by Hao Jiao, Zhijiang Lun, Yanxiao Ni, Zhiguo Chang, Limin Fan and Liqiang Ma
Water 2025, 17(12), 1734; https://doi.org/10.3390/w17121734 - 8 Jun 2025
Viewed by 372
Abstract
In coal seam mining operations, the presence of overlying water bodies presents persistent challenges, particularly during multi-seam extraction, where water accumulation in upper seam goafs requires careful management. This study examined the Lingzhida Coal Mine, focusing on the geological conditions of the 3# [...] Read more.
In coal seam mining operations, the presence of overlying water bodies presents persistent challenges, particularly during multi-seam extraction, where water accumulation in upper seam goafs requires careful management. This study examined the Lingzhida Coal Mine, focusing on the geological conditions of the 3# seam (upper) and the 15# seam (lower), as well as the distribution of water accumulation in the corresponding goafs. The mechanism of water inrush from the upper goaf was studied, and the role of the water-resisting belt (WRB) is suggested. By utilizing empirical equations and field measurements, a method for calculating the floor fracture depth of the 3# seam and the roof fracture height of the 15# seam was derived through multi-linear regression analysis. Based on the relationship between the thickness of the WRB (Hw) and the protective layer (Hp), a classification criterion for the water-inrush risk (the likelihood of water entering the lower seam from the upper goaf) is proposed. The mining area was divided into four risk zones: high-risk (Hw < 0), medium-risk (0 ≤ Hw < 0.5Hp), low-risk (0.5HpHw < Hp), and safe (HwHp). Then, an adaptive zoning approach for water-preserved mining was introduced, considering the spatial distribution of goaf water. This approach incorporates water-preserved mining technologies, including the staggered layout of working faces, reduction in mining height, and the transfer–storage of water resources. These research findings provide crucial insights for ensuring the safe and efficient extraction of the multi-seam. Full article
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