Results 11 to 20 of about 47,624 (295)
Strong Structure Formation of Ceramic Composites Based on Coal Mining Overburden Rocks
Journal of Composites Science, 2023 Currently, the amount of man-made waste worldwide is steadily increasing. It is, therefore, necessary to constantly look for effective ways of utilization and recycling. It is also necessary to reduce the use of non-renewable resources and reduce the impact on the environment.
Galiya Rakhimova +5 more
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Energies, 2022 To understand the change in overburden structure after coal seam group mining, we investigated the overburden characteristics and bearing capacity of abandoned coal mines in a coal seam group. We provide a theoretical basis for the construction and utilization of a coal mining subsidence area under a complex geological environment. This paper takes the
Ning Jiang +5 more
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Structure and deformation measurements of shallow overburden during top coal caving longwall mining
International Journal of Mining Science and Technology, 2017 Mining induced pressures are strong and overburden failure areas are large in top coal caving longwall mining, which constrains high production and safety mining. By employing the combination of the full view borehole photography technique and the seismic CT scanner technique, the deformation and failure of overlying strata of fully mechanized caving ...
Sheng Li +5 more
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Overburden movement law in strip filling mining of upward mining faces
Scientific ReportsStrip filling mining significantly improves coal recovery rates and fosters sustainable development in the coal industry. To investigate the overburden movement patterns of strip filling mining, a mine in Tuokexun was selected as the study site.
Lingjin Huang +5 more
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Muon radiography experiments on the subway overburden structure detection
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2023 30 pages, 10 ...
Xin Mao +9 more
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Mechanism of stress-loaded rockburst in fully mechanized top-coal caving stope with deep overburden
Meitan xuebao, 2023 The stress-loaded rockburst is a unique type of rockburst that occurs in some fully mechanized top-coal caving stopes with deep thick overburden, its occurrence mechanism is still unclear, leading to the failure to effective prevention and even serious ...
Xiang ZHANG +10 more
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Computer Numerical Simulation of Sluice Structure on Deep Overburden Foundation [PDF]
Advances in Intelligent Systems Research, 2015 This paper adopts the space combination finite element method to calculate the whole displacement and stress of chamber structure and foundation, calculates the overall stability against sliding and anti-floating stability safety coefficient of the lock chamber structure via the rigid body limit equilibrium method, and simulates the excavation and ...
Xuanmao Peng, Weiping Hu, Xuan Wang
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Meitan kexue jishu, 2023 The mining of extremely thick coal seam form a large space stope, the fracture disturbance of hard roof spreads to a wide range, the working face weighting has the characteristic of “strong mine pressure”, it is obviously different from rock burst ...
YU Bin +3 more
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Coevolution mechanism and branch of pillar‐overburden fissures in shallow coal seam mining
Energy Science & Engineering, 2023 The large‐scale mining of coal resources promotes the formation of section coal pillar groups between working faces. The overlying strata are supported by coal pillars, which leads to the formation of a unique fracture‐bearing structure in the key ...
Jie Zhang +6 more
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Shock and Vibration, 2021 In order to predict the surface subsidence scientifically in solid filling mining, it is necessary to establish a complete subsidence prediction model and parameter system according to the evolution law of overburden structure and strata movement ...
Zhiyong Fu +4 more
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