Results 81 to 90 of about 1,809 (225)
Energy Science & EngineeringThe deformation energy stored in soil‐like tectonic coal plays a critical role in coal and gas outbursts. Unlike hard rocks, tectonic coal exhibits pronounced stress–strain nonlinearity, invalidating traditional elastic energy models.
Chenghao Wang +4 more
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Deep Underground Science and Engineering, EarlyView.Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu +4 more
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Research on energy instability of composite coal based on unsteady diffusion to cause disaster
Meitan kexue jishuIn China, due to the influence of geological tectonics, the phenomenon of primary structural coal and tectonic coal stratification exists in many coal seams.
Yujin QIN +3 more
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Deep Underground Science and Engineering, EarlyView.This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu +8 more
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EnergiesThe study of pore characteristics in tectonic coal is essential for a deeper understanding of gas diffusion, seepage, and other transport processes within coal seams, and plays a crucial role in the development of coalbed methane resources.
Jinbo Zhang +4 more
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Energy Exploration & Exploitation, 2018 The coal measure strata formed in the late Paleozoic era underwent tectonic movements on several occasions, leading to the development of a range of fold structures in the strata as a result of highly interlayered gliding and shearing deformation.
Tianrang Jia +3 more
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Deep Underground Science and Engineering, EarlyView.In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu +6 more
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Tectonic control law and zoning division of coalmine gas occurrence in Shanxi Province
Energy Exploration & ExploitationThe frequent occurrence of gas disasters in coal mines is primarily attributed to an unclear understanding of gas occurrence laws. Tectonic control law of coalmine gas occurrence in Shanxi Province was analyzed by utilizing massive gas-geology data of ...
Zhigang Song +7 more
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Deep Underground Science and Engineering, EarlyView.The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li +4 more
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The Effect of a Tectonic Stress Field on Coal and Gas Outbursts
The Scientific World Journal, 2014 Coal and gas outbursts have always been a serious threat to the safe and efficient mining of coal resources. Ground stress (especially the tectonic stress) has a notable effect on the occurrence and distribution of outbursts in the field practice.
Fenghua An, Yuanping Cheng
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