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Strong strata behavior mechanism and roof cutting control of small pillar gob-side roadway in extra-thick coal seam
In Datong mine, the extraction of coal resources faces challenges due to strong strata behavior and significant deformation of gob-side roadways...
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Prediction of backbreak in hot strata/fiery seam of open-pit coal mine by decision tree and random forest algorithm
Coal due to its property of spontaneous heating catches fire when exposed in air. The mines where already coal has been extracted using underground...
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Fractal Characterization of Fracture Structure of Coal Seam Water Injection Based on NMR Experiment
The complex fracture structure of coal bodies determines the seepage characteristics of water within them. Such characteristics are key for...
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Influence of coal seam floor damage on floor damage depth
In order to verify the influence of floor damage upon the depth of floor failure and on the basis of determining mining depth, coal seam dip, mining...
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Stochastic distribution characteristics of void fraction in overburden disturbed by longwall mining in shallow seam
Multi-scale voids including fractures and bed separations will appear and dynamically develop as the underground mining-induced disturbance...
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Importance of Fracturing Hard and Massive Overlying Strata for Complete Extraction of Thick Coal Seam — Case Studies
Engineering efforts need to be organized as per the rock mechanic conditions of the site for efficient underground extraction of a thick coal seam....
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Experimental Study on the Movement and Failure Characteristics of Karst Mountain with Deep and Large Fissures Induced by Coal Seam Mining
To investigate the temporal and spatial evolution process of overlying karst mountain instability caused by mining, the case of “8.28” mega landslide...
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Research on the pressure variation law and enhancing CBM extraction application effect of CO2 phase transition jet coal seam fracturing technology
Due to the limited permeability and high methane content of the majority of China’s coal seams, significant coal mining gas disasters frequently...
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Isotope geochemical features and layered quantitative method of coal seam group gas combined extraction
In view of the problem that it is difficult to measure the gas extraction of each coal seam alone by traditional device in the process of coal seam...
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Evaluation of Surface Subsidence Due to Inclined Coal Seam Mining: a Case Study in the 1930 Coal Mine, China
The characteristics of overlying strata movement and the evolution of surface subsidence-related parameters are essential in preventing geological...
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Relationship between soil water content and vegetation distribution in a small area before and after coal seam mining: a case study of coal mining subsidence area in Northwest China
Soil water content and vegetation are two key factors in the ecological recovery of coal mining subsidence areas, and the distribution of vegetation...
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Evaluation of coal reservoir coalbed methane production potential in considering different coal structures in a coal seam section: a case study of the Shizhuang North Block in the Qinshui Basin
Gas content and permeability are important parameters for the evaluation of coal reservoir gas production potential. When heterogeneity of these...
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Finding a New Coal Seam in Chandra Area, Surguja District, Chattisgarh, India
A new coal seam is being reported in Chandra area (23°03′00″ to 23°10′00″ N, and 83°10′00″ to 83°20′00″ E), located southeast of Ambikapur, the...
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Numerical simulation study on the seepage characteristics of coal seam infusion effected by mining-induced stress
Mining-induced stress will cause the change of coal seam pore structure. However, most coal seam infusion simulation studies do not consider the...
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Spontaneous combustion of coal seams in the Bengiler coal mine in Turkey
In coal mining, spontaneous coal seam combustion has been and continues to be a major issue. Combustion in or near coal mines, in particular, can...
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Feasibility study of safe mining of thick coal seam under thick loose sediment and thin bedrock
In the area studied, the roof of coal seam is the combination of thick loose bed and thin bedrock, based on the analysis of strata structure and on...
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Study of floor failure characteristics and water-inrush risk in a working face of lower coal seam
The deformation and failure characteristics of the floor after mining of the thin coal seam on the confined aquifers of the lower coal seam in...
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Study on prediction method of gas emission rate in layered mining of extremely thick coal seam
The prediction of gas emission is an effective measure to prevent gas disasters. In view of the difficulty in predicting the amount of gas emission...
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Main controlling factors to determine depth of failure zone in complete floor of coal seam based on field measurements
To examine the degree of the influence of width of the working face, mined depth, dip angle of the coal seam and thickness of the mined seam on the...
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Composite roof stability control in a short-distance coal seam under goaf: a case study
Field research, theoretical analyses, numerical simulations, and industrial tests were employed to solve the serious problems of anchor cable...
