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Meikuang Anquan
ISSN 1003-496X · Editorial Office of Safety in Coal Mines · 2,994 articles in the index
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Journal Article
Classification analysis and quantitative efficacy evaluation of coal mine accident prevention measures
Coal mine accident prevention measures are of extremely crucial significance for safeguarding the lives of miners and ensuring the stable operation of coal mines. Assessing the efficacy of these measures is a core component in optimizing accident prevention strategies and enhancing prevention…
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Journal Article
Study on performance of sulphoaluminate cement-based double liquid grouting material based on response surface method
In order to improve the early strength of traditional double liquid grouting material and accelerate the setting time of slurry after double liquid mixing, using fly ash, quicklime and hydrated lime to modify traditional double liquid grouting materials, sulphoaluminate cement-based double liquid…
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Journal Article
The influence of inhibitor solution on pore-fracture structure of coal body and its seepage law
Pre-injection of inhibitor solution is the source prevention technology of coal spontaneous combustion, which can effectively solve the fire problem caused by oxidation of coal. In order to study the effect of the inhibitor solution on the pore and fracture structure of the coal body and its…
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Journal Article
Study on the interaction and propagation patterns of weakly consolidated interfaces and hydraulic fractures in deep coal seams
Coal seam reservoirs contain a large number of weakly consolidated interfaces such as cleats, bedding, and natural fractures, which, along with complex pore structures, make the prediction of fracture propagation patterns during hydraulic fracturing challenging. Understanding the intersection and…
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Journal Article
Research on atomization characteristics and dust suppression performance of a new negative-pressure spraying device
To address the issue of dust dispersion in fully mechanized mining faces, a novel negative pressure-spraying dust suppression device based on the principle of the Coanda effect was designed. This device not only effectively covers the dust generated by the shearer drum but also utilizes the suction…
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Journal Article
Study on spontaneous combustion characteristics of air-dried water-soaked lean coal in a gas-containing environment
To clarify the spontaneous combustion risk of residual coal under long-term water immersion and gas-containing airflow in underground mines and investigate the effects of dual water immersion and gas action on its spontaneous combustion characteristics, water-soaked coal samples were prepared by…
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Journal Article
Experimental study on characteristics of sodium carboxymethyl cellulose solution containing citric acid to inhibit coal spontaneous combustion
Coal spontaneous combustion is a major hidden danger in coal mine safety production, and the traditional coal spontaneous combustion inhibition material has the problems of single principle, complex preparation process and high cost. In view of the existing problems, we use sodium carboxymethyl…
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Journal Article
Experimental study on fatigue and damage characteristics of coal-rock combined mass subjected to cyclic loading
In order to explore the fatigue and damage characteristics of combined coal and rock mass under cyclic loading, fatigue failure tests under the combined action of high static stress and small-amplitude cyclic loading were carried out based on the RMT-150C test system. The fatigue and damage…
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Journal Article
Simulation study on the influence of different influencing factors on the amount of drilling cuttings
The drilling cuttings method is an important means to determine and predict the risk of coal and rock dynamic disasters such as rock burst. Accurately obtaining the variation law of drilling cuttings is one of the keys to understanding the stress state of coal. In order to further understand the…
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Journal Article
Numerical simulation of open pit slope cumulative failure and stability under repeated blasting
To study the stability and cumulative failure of Beskuduk Open-pit Mine slope under repeated blasting vibration, the 3DEC software is adopted to deeply investigate it. The slope numerical model is set up according to the slope structure characteristic. The measured blasting seismic wave of the mine…
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Journal Article
Stability of end slope pillars and slope deformation under irregular loads
To study the impact of irregular loads from the overburden dumping site on the stability of the coal pillar and slope in open-pit coal mining, this study selects Laiyegou Open-pit Mine in Ordos of Inner Mongolia as a case study. Based on the irregular geometric shape of the dumping site, the…
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Journal Article
Study on the influence of bedding properties on roof stability based on FDM-DEM coupled numerical simulation
In order to reveal the influence of bedding properties on the stability of coal mine roadway, the study established a 3D numerical model combined finite differential method (FDM) coupling discrete element method (DEM). In the model, the two sides of the roadway, the floor and the far-field…
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Journal Article
Analysis of the influence mechanism of rainfall infiltration on slope stability based on InSAR and numerical simulation
To accurately identify unstable slopes in open-pit mines and analyze the influence mechanisms of rainfall infiltration on slope stability, this study focuses on a southern open-pit mine, integrating remote sensing monitoring and numerical simulation technologies to investigate slope deformation…
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Journal Article
Simulation analysis of energy absorption characteristics of hyperbolic shallow shell anti-impact energy absorbing components
To enhance the impact resistance and energy absorption performance of hydraulic supports in mitigating coal mine rock burst, a hyperbolic shallow shell anti-impact energy-absorbing component was designed. Finite element numerical simulations were conducted to analyze the performance of a navel…
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Journal Article
Study on dynamic response law of gas drainage characteristics in cavity-making and permeability enhancement technology for loose and broken soft coal seams
Cavity-making technology in coal seams is one of the main technologies for controlling gas in loose, low-permeability, and difficult-to-drain coal seams. Due to the limitations of equipment and process technology, the on-site construction parameters of cavity-making are mostly determined based on…
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Journal Article
Experimental study on dynamic strength and crack evolution of rocks under different strain rates
The study on the dynamic mechanical characteristics of rocks under impact loading holds significant theoretical guiding significance for achieving controlled blasting during roof cutting blasting. Based on a split Hopkinson pressure bar (SHPB) test system, sandstone from the roof of Dingji Coal…
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Journal Article
Formation mechanism and prevention technology of water hazard from bed separation in hidden outcrop area of coal seam
In order to find out the water source, channel and formation mechanism of water damage in the coal seam working face in the hidden outcrop area of Songxinzhuang Coal Mine, we analyzed the changing law of water level in the aquifer, combined with the hydrogeological conditions of the working face…
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Journal Article
Study on strain characteristics of coal during CH4 adsorption–desorption process
In order to clarify the deformation law of the coal body in the adsorption-desorption process and reveal its intrinsic dominant mechanism, a study on the strain characteristics of the coal body in the CH4 adsorption-desorption process was carried out. The isothermal CH4 adsorption-desorption…
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Journal Article
Research on closed spray injection purification and dust removal technology at coal mine belt transfer point
To address the issues of high dust concentration at coal mine belt transfer points and the insufficient efficiency of existing dust suppression technologies, a closed-type spray-induced jet purification and dust removal technology is proposed. This technology integrates a coal baffle plate, an…
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Journal Article
A group straightening method for hydraulic supports based on multi-agent global optimization
The linearity of the mining face is crucial for the stability of surrounding rocks and the efficiency of coal recovery. To address the issue of establishing an accurate control model to achieve the optimal group straightening of the hydraulic supports during the mining process, which is affected by…
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