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Mechanical responses and fracturing behaviors of coal under complex normal and shear stresses, Part II: Numerical study using DEM
This work presents particle-based numerical simulations on coal pillars in a coal mine based underground water reservoir (CMUWR). We aim to replicate...
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Assessment of factors and mechanism contributing to groundwater depressurisation due to longwall mining
Assessment of mining impact on groundwater is one of critical considerations for longwall extension and sustainability, however usually constrained...
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Merging TROPOMI and eddy covariance observations to quantify 5-years of daily CH4 emissions over coal-mine dominated region
A simple and flexible mass balance approach was applied to observations of XCH 4 from TROPOMI to estimate CH 4 emissions over Shanxi Province,...
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Moisture penetration and distribution characterization of hard coal: a µ-CT study
Moisture content of rock/coal can change its mechanical properties and absorption capacities, which can directly affect gas diffusivity, change the...
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Optimizing open-pit coal mining operations: Leveraging meteorological conditions for dust removal and diffusion
Dust pollution from Chinese open-pit coal mines (OPCMs) threatens the coexistence of resource development and environmental protection. This research...
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Numerical simulation of adsorption process of O2/H2O mixed gas in coal porous media
It is of great significance for coal mining and utilization to study the adsorption process of mixed gas in coal. In this paper, the Monte Carlo...
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Petrology and association of rare earth elements in magmatically altered high-ash coal of Indian origin
The extraction of valuables from waste has gained momentum. Thermal influence alters both the organic and inorganic components of coal. Insufficient...
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A software for calculating coal mine gas emission quantity based on the different-source forecast method
The ability to predict gas emissions accurately is pivotal in managing gas control and ensuring safe mining operations. Existing internationally...
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A review of coal permeability models including the internal swelling coefficient of matrix
Coal bed methane (CBM), the high-quality and efficient fuel, has caught the interest of many nations as they strive for environmentally friendly...
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The release and migration mechanism of arsenic during pyrolysis process of Chinese coals
Special attention was drawn to the heavy metals contained in coal, due to it will cause harm to the environment during coal processing and...
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Research on coal-rock identification method and data augmentation algorithm of comprehensive working face based on FL-Segformer
Coal-rock interface identification technology was pivotal in automatically adjusting the shearer’s cutting drum during coal mining. However, it also...
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Geochemistry of Cenozoic coals from Sarawak Basin, Malaysia: implications for paleoclimate, depositional conditions, and controls on petroleum potential
Forty Tertiary coals from Mukah-Balingian and Merit-Pila coalfields of the Sarawak Basin, Malaysia were investigated using bulk and molecular...
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Failure characteristics and fracture mechanism of overburden rock induced by mining: A case study in China
This study employs similar simulation testing and discrete element simulation coupling to analyze the failure and deformation processes of a model...
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Screening the optimal Cox/CeO2(110) (x = 1–6) catalyst for methane activation in coalbed gas
The challenges posed by energy and environmental issues have forced mankind to explore and utilize unconventional energy sources. It is imperative to...
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Comparative study on different coals from the Lorraine basin (France) by sorption isotherms, thermogravimetric analysis and breakthrough curves for CO2-ECBM recovery
The enhanced coalbed methane recovery using CO 2 injection (CO 2 -ECBM) is widely proposed as a way of achieving the energy transition and reducing...
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Effect mechanism of seepage force on the hydraulic fracture propagation
The flow of fluid through the porous matrix of a reservoir rock applies a seepage force to the solid rock matrix. Although the seepage force exerted...
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Photocatalytic degradation of methylene blue over MIL-100(Fe)/GO composites: a performance and kinetic study
Adsorption coupled with photocatalytic degradation is proposed to fulfill the removal and thorough elimination of organic dyes. Herein, we report a...
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Organic petrographic and mineralogical composition of the No. 6 coal seam of the Soutpansberg Coalfield, South Africa: Insights into paleovegetation and depositional environment
This study investigates the paleodepositional conditions of the No. 6 Seam of the Madzaringwe Formation in Makhado and Voorburg south area of the...
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Mechanical properties and energy evolutions of burst-prone coal samples with holes and fillings
During the mining process of impact-prone coal seams, drilling pressure relief can reduce the impact propensity of the coal seam, but it also reduces...
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Research advances in enhanced coal seam gas extraction by controllable shock wave fracturing
With the continuous increase of mining in depth, the gas extraction faces the challenges of low permeability, great ground stress, high temperature...
