Articles with "deep coal" as a keyword



Failure of bolt support and experimental study on the parameters of bolt-grouting for supporting the roadways in deep coal seam

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Published in 2017 at "Engineering Failure Analysis"

DOI: 10.1016/j.engfailanal.2017.06.025

Abstract: Abstract This paper aims to provide some useful guidance for the design of parameters in bolt-grouting support and stabilize the surrounding rock in deep coal seam. A grouting reinforcement effect evaluation test instrument for fractured… read more here.

Keywords: coal seam; grouting bolt; parameters bolt; deep coal ... See more keywords

Influences of CO2 Injection into Deep Coal Seams: A Review

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Published in 2017 at "Energy & Fuels"

DOI: 10.1021/acs.energyfuels.7b01740

Abstract: For nearly 20 years, CO2 has been injected into coal seams to enhance the recovery of methane in a process known as enhanced coal bed methane (ECBM). However, there is a huge complexity associated with… read more here.

Keywords: co2 injection; coal seams; injection deep; deep coal ... See more keywords

Research on comprehensive characterization of deep coal full aperture structure and burial depth effect

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Published in 2025 at "Scientific Reports"

DOI: 10.1038/s41598-025-88593-1

Abstract: With the increasing depletion of shallow mineral resources, deep mining has become important; however, basic research on deep resource development remains insufficient, and basic laws are unclear. In particular, comprehensive research on the pore structure… read more here.

Keywords: structure; coal; burial depth; pore ... See more keywords

Effects of different water-based fracturing fluids on mechanical properties and energy evolution of deep coal under true triaxial loading

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Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0246698

Abstract: In order to investigate the impact of fracturing fluid invasion on the mechanical degradation of deep coal, coal samples treated with five promising fracturing fluids were used for true triaxial compression tests in deep conditions.… read more here.

Keywords: samples treated; energy; water; coal ... See more keywords

Early warning of deep coal miners’ unsafe behavior based on the HFACS-CM-BP neural network

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Published in 2025 at "International Journal of Occupational Safety and Ergonomics"

DOI: 10.1080/10803548.2025.2474344

Abstract: Preventing miners’ unsafe behavior and reducing accidents in deep coal mines are crucial. This study comprehensively used methods such as the human factor analysis and classification system for China mines (HFACS-CM) model, grounded theory and… read more here.

Keywords: miners unsafe; unsafe behavior; neural network; deep coal ... See more keywords

Engineering Sweet Spot Evaluation of Deep Coal Seam: Algorithm Construction and Application Integrated with Geological Sweet Spot—A Case Study in Ordos Basin, China

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Published in 2025 at "SPE Journal"

DOI: 10.2118/224418-pa

Abstract: Deep coalbed methane (CBM) is an important unconventional gas resource following shallow coal seam development, vital for energy supply and security. The deep coal seams in the study area are characterized by low porosity, low… read more here.

Keywords: evaluation; coal; gas; sweet spot ... See more keywords

Gas-bearing evaluation of deep coal rock in the Yan’an gas field of the Ordos Basin

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Published in 2024 at "Frontiers in Earth Science"

DOI: 10.3389/feart.2024.1438834

Abstract: The Yan’an gas field in the Ordos Basin is a typical deep coalbed methane field with tremendous resource potential. Evaluation methods for gas content in deep coal seams are urgently required to be established. This… read more here.

Keywords: field; yan gas; gas field; gas ... See more keywords

Risk Factors Identification of Unsafe Acts in Deep Coal Mine Workers Based on Grounded Theory and HFACS

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Published in 2022 at "Frontiers in Public Health"

DOI: 10.3389/fpubh.2022.852612

Abstract: The risk factors affecting workers' unsafe acts were comprehensively identified by Human Factors Analysis and Classification System (HFACS) and grounded theory based on interview data and accident reports from deep coal mines. Firstly, we collected… read more here.

Keywords: grounded theory; risk factors; deep coal; unsafe acts ... See more keywords

Comprehensive Characterization and Metamorphic Control Analysis of Full Apertures in Different Coal Ranks within Deep Coal Seams

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Published in 2024 at "Applied Sciences"

DOI: 10.3390/app14188566

Abstract: The pore fracture structure of deep coal reservoirs is crucial for evaluating the potential of deep coalbed methane resources, conducting exploration and development, and controlling coal mine gas disasters. Mercury intrusion porosimetry, the liquid nitrogen… read more here.

Keywords: volatile matter; structure; coal; pore ... See more keywords

Deformation Patterns of Deep Coal Mine Roadways Revealed by 3D Laser Scanning

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Published in 2025 at "Applied Sciences"

DOI: 10.3390/app152212255

Abstract: Monitoring the deformation of rock surrounding deep coal mine roadways is critical for operational safety, yet conventional methods are often inefficient and lack the precision to capture complex geomechanical behavior. To address this challenge, we… read more here.

Keywords: coal mine; methodology; deep coal; deformation ... See more keywords
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Failure Behavior and Damage Characteristics of Coal at Different Depths under Triaxial Unloading Based on Acoustic Emission

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Published in 2020 at "Energies"

DOI: 10.3390/en13174451

Abstract: The depth effect of coal mechanical behavior seriously affects the safety and efficiency of deep coal mining. To explore the differences in failure behavior and damage characteristics of coal masses at different depths during the… read more here.

Keywords: depth; failure behavior; deep coal; damage ... See more keywords