Results 51 to 60 of about 1,889 (217)
Study on Multisize Effect of Mining Influence of Advance Speed in Steeply Inclined Extrathick Coal Seam [PDF]
, 2022 Aiming at the multisize effect of mining in steeply inclined extrathick coal seam, taking the fully mechanized top-coal caving mining in B3+6 coal seam +425 level in the south of Wudong coal mine as the background, this paper studies the mining stress ...
Chong Jia +6 more
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Meikuang Anquan, 2020 Aiming at the safety problem of high gas emission in 2303 fully mechanized caving face of Cuijiagou Coal Mine, the evolution law of “three zons” in goaf is studied by using physical similarity simulation and UDEC numerical simulation experiment on the ...
XU Gang, WANG Yunlong, ZHANG Tianjun, PAN Hongyu
doaj +1 more source
Application of 3D laser scanner, optical transducers and digital image processing techniques in physical modelling of mining-related strata movement [PDF]
, 2015 A physical testing protocol for modelling mining-related problems has been presented. • A new method for monitoring fracture propagation pattern has been introduced. • Laser based and optical devices have been used for physical modelling of subsidence. •
Ghabraie, B, Holden, L, Ren, G, Smith, J
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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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Coal seam gas control technology in working face with low content and high gas emission
Meikuang Anquan, 2021 In order to solve the problem of increasing gas emission caused by ultra-high intensity mining in fully mechanized top coal caving face with large mining height, starting from the gas emission law of fully mechanized caving face with large mining height,
ZHANG Dongxu
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Models and methods to make decisions while mining production scheduling [PDF]
, 2019 Purpose is to develop a new approach to the design of mining operations basing upon models and methods of decision making. Methods. The paper has applied a complex approach involving approaches of decision-making theory.
Demchenko, Yu +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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Gong-kuang zidonghuaIn the stratified fully mechanized caving of ultra-thick coal seams, the inclined layout of upper and lower caving faces leads to lower fully mechanized caving face intermittently crossing residual coal pillars of the upper layer. This results in complex
LIU Yong +7 more
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IOP Conference Series: Earth and Environmental Science, 2021 Abstract In this paper, the test site is the working surface hollowing area of Luling Coal Mine 8, coal seam III 811, and the distributed fiber temperature measurement is carried out. Distributed temperature measuring fibers and beam tubes are arranged in the inlet and return wind lanes of the work surface for continuous monitoring ...
Jing Sun, Canming Zhang
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Energy Science &Engineering, EarlyView.Interpretable tree‐based models integrate microseismic, geological, and mining indicators to predict short‐term rockburst risk. SHAP analysis reveals the dominant role of energy‐related features and clarifies nonlinear factor interactions, enabling transparent and reliable early‐warning in deep coal mines.
Shuai Chen +4 more
wiley +1 more source