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Monitoring, Process Control and Prevention Measures for Safety Problems in Coal Mining

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Process Control and Monitoring".

Deadline for manuscript submissions: 15 January 2026 | Viewed by 211

Special Issue Editors


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Guest Editor
State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
Interests: mine safety; gas flow theory in coal; dynamic disasters in coal mines
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Guest Editor
Research Institute of Macro-Safety Science, University of Science and Technology Beijing, Beijing 100083, China
Interests: gas adsorption; gas diffusion; gas seepage; coal and gas outburst
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Guest Editor
School of Emergency Management and Safety Engineering, North China University of Science and Technology, Tangshan 063210, China
Interests: gas explosion; gas disaster prevention and control; coal bed methane extraction; coal seam water injection; hydraulic fracturing
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Guest Editor
College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Interests: mine gas disaster prevention; numerical simulation of deep coalbed methane mining; characterization of structural characteristics of seam holes and fractures; gas/liquid migration mechanism of porous media in coal reservoir

Special Issue Information

Dear Colleagues,

With the gradual depletion of coal resources and the increasing exploitation intensity of these resources in mining areas, coal mining has entered a phase of deep mining. In deep environments, the coal and rock mass in the "three high and one low" stress environment will have a more intense mechanical response, accompanied by more serious engineering disasters, such as coal and gas outbursts, rock bursts, gas dust explosions, roadway deformation, and other disaster problems. Therefore, it is of great significance to study the monitoring, process control, and preventive measures of coal mining safety problems for the safe and efficient mining of coal resources.

This Special Issue solicits original research articles and review papers reflecting the advances in research concerning process safety in coal mining. Topics of interest include, but are not limited to, the following:

  • Mechanisms and prevention of dynamic disasters;
  • Prevention of coal mine gas and fire coupling disasters;
  • Gas extraction technology of low-permeability coal seams;
  • Coal mine gas explosions;
  • Coal bed gas adsorption, desorption, and diffusion;
  • Roadway surrounding rock control.

Dr. Yangyang Guo
Dr. Yingfeng Sun
Dr. Jian Chen
Dr. Hao Xu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • mechanisms and preventions
  • coal seams
  • gas extraction technology
  • coal bed gas adsorption
  • coal mine gas explosions
  • process control

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Published Papers (1 paper)

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Research

22 pages, 1706 KiB  
Article
Study on Air Injection to Enhance Coalbed Gas Extraction
by Yongpeng Fan, Longyong Shu, Xin Song and Haoran Gong
Processes 2025, 13(6), 1882; https://doi.org/10.3390/pr13061882 - 13 Jun 2025
Abstract
Gas extraction is an important means to reduce coalbed gas and ensure safe coal production. Injecting N2/CO2 into a coalbed can enhance coal seam gas extraction, but problems with N2/CO2 sources underground have prevented the wide application [...] Read more.
Gas extraction is an important means to reduce coalbed gas and ensure safe coal production. Injecting N2/CO2 into a coalbed can enhance coal seam gas extraction, but problems with N2/CO2 sources underground have prevented the wide application of this technology in coal mines. The air contains a large amount of N2, but only a few studies have investigated the injection of air into coalbeds to facilitate gas extraction. In this study, a thermal–hydraulic–solid coupling model for air-enhanced coalbed gas extraction (Air-ECGE) was established. Additionally, the impact of air injection on coalbed methane extraction was simulated, and field experiments were conducted on air injection to enhance gas extraction. The results showed that injecting high-pressure air into a coalbed can effectively facilitate gas desorption and gas migration within the coalbed, greatly improving the efficiency of gas extraction in the coalbed. In addition, owing to the large pressure gradient that can lead to fast coalbed gas seepage, the gas production rate of the extraction borehole is directly proportional to the gas injection pressure. Further, the spacing of the boreholes limits the influence range of the gas injection: the larger the spacing, the larger the influence range, and the higher the gas extraction rate of the extraction borehole. After injecting air into the coalbed of the Liuzhuang coal mine, the extraction flow rate and concentration of gas from the extraction boreholes both increased significantly. A certain delay effect was also observed in the gas injection effect, and the gas extraction flow rate only decreased after a period of time after the gas injection had stopped. Full article
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