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Application of Brillouin Optical Time Domain Reflection Technology for Monitoring Deformation and Failure of the Coal Seam Floor Rock Mass in Deep Underground Mines
Almost all of the coalfields in East China are now mining deep seams. Accurate prediction of the damage to floor rock during mining is key to...
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Stress Evolution of Repeated Mining Based on the Double-Yield Model in Multiple Coal Seam
AbstractThe Double-Yield (D-Y) model is a widely used method for predicting the mechanical properties of caved rock. However, determining the...
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Movement and deformation characteristics of overlying rock mass in deep coal seam
The 110 mining method is an innovative and useful coal mining technology. It mainly relies on two technologies to improve coal mining rate: Top...
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Study on In-seam Wave Response Characteristics of Reflection in Fault Bearing Coal Seam of Shuangliu Coal Mine
In order to study the response characteristics of reflected trough in-seam wave in fault bearing coal seam, find out the geological structure of coal...
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Roof cutting mechanism and surrounding rock control of small pillar along-gob roadway driving in super high coal seam
In view of the low recovery rate associated with wide coal pillar and the strong strata behavior associated with small coal pillar, the roof cutting...
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Influence Mechanism of Mine Pressure on Coal Seam Gas Emission During Mining
Gas is one of the main factors causing coal mine accidents in China. Understanding the mechanism of the influence of mine pressure on coal seam gas...
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The mechanism and countermeasures of inclined well wellbore instability in Dibei deep coal seam
The wellbore instability of the deep coal seam has always been a difficult problem limiting drilling engineering in Dibei area of Tarim basin, China....
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Risk assessment of water inrush from coal seam roof with an AHP–CRITIC algorithm in Liuzhuang Coal Mine, China
Mine inrush water accidents occur frequently with increasing mining depth, thereby seriously threatening the lives and safety of workers. This study...
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Study on law and prediction of surface movement and deformation in mountain area under repeated mining of shallow coal seam
In view of the problem of surface subsidence and landslide caused by repeated mining in southwest China. Taking Anshun Coal Mine in Anshun City,...
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Characterization of composite coal seam III–IV of Ramagundam coalfield, Godavari Basin (India): an attempt to evaluate CBM prospects
In the present investigation, composite coal seam III–IV of the Ramagundam coalfield of the Godavari Basin has been studied through scanning electron...
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Evaluation of Hydraulic Fracturing in Coal Seam using Ground Microseismic Monitoring and Source Location
Accurate evaluation of the impact range of hydraulic fracturing (HF) in coal seams is the key to optimizing HF design schemes. In this study,...
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Study on failure characteristics of overburden in extra thick coal seam mining
Detecting the development height of the water-flowing fractured zone in the overburden of coal seam is of great significance for the overburden...
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Identification of Coal and Gas Outburst-Hazardous Zones by Electric Potential Inversion During Mining Process in Deep Coal Seam
Coal remains an important fuel and energy, especially in China. For coal mining in deep mines, the threat of coal and rock dynamic disasters (such as...
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Main control factors of coalbed methane occurrence differences in adjacent coal seams - a case study of Luling coal mine, Huaibei Coalfield, China
Coalbed methane (CBM) is a natural gas resource related with coal deposits. In general, Gas status parameters gradually with the depth of the...
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Geological and microstructural characterisation of coal seams for methane drainage from underground coal mines
Methane drainage from coal seams is a complex process. Quantification of the geological and microstructural characteristics of the coal matrix is of...
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Diffusion-seepage coupling model and its application of oil-bed gas in coal seam with overlap** resources
In order to reveal the overlap** area of coal and oil resources, the flow law and distribution characteristics of oil-bed gas in the coal seam...
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Gob-side entry driving with small-coal-pillar for Carboniferous extra thick coal seam under Jurassic coal pillar
To solve the problem of strong mine ground pressure around the roadway in Carboniferous working face under Jurassic coal pillar in Tongxin Coal Mine,...
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Study on seepage and wettability distribution of coal seam water injection based on electrical conductivity
The process of water injection in coal seams describes the permeation behavior caused by the action of ground stress and water injection pressure. To...
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Quantitative Assessment of Coal Seam Permeability Improvement Around an Enlarged Borehole in Gas Extraction Engineering: A Method for Field Application
AbstractUnderstanding the permeability distribution is an important basis for the design of hydraulic strengthened gas extraction. However, the...
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Investigation of Hydraulic Fracture Behavior near a CBM Wellbore: Evidence from in situ Observation in Coal Seam
In situ observations are a suitable method for studying the hydraulic fractures in a coal reservoir. The cement sheath and propped fractures can be...
