Results 31 to 40 of about 1,438 (180)
Technology path and assumptions of intelligent surrounding rock control at longwall working face
矿业科学学报, 2022 The intelligent surrounding rock control at longwall working face is the necessary condition to realize the intelligent mining of working face. This paper redefined the connotation of the surrounding rock system at longwall working face and clarified the
Yang Shengli, Wang Jiachen, Li Ming
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Geomatics, Natural Hazards & Risk, 2020 Many dynamic disasters such as coal wall caving and roof falling have happened during longwall face crossing fault. Combined with the coal seam geological conditions in the 1302 longwall face AB coal mine, the paper comprehensively studies the overlying ...
Fangtian Wang +3 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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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
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International Journal of Mining Science and Technology, 2019 Understanding the cantilevers formed by thick, massive beds in the near-seam overburden above longwall panels and the associated loads and strata fracturing effects developed during caving (main and periodic weightings) are key elements for the ...
Veera Reddy Boothukuri +3 more
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Quantifying relationships between subsidence and longwall face advance using DInSAR
International Journal of Mining Science and Technology, 2021 Surface subsidence that results from longwall mining can be large magnitude and can affect significant areas. Conventional methods for subsidence monitoring include leveling, global positioning system (GPS), and photogrammetric surveys.
Bailey S. Simmons, Jessica M. Wempen
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Energy Science &Engineering, EarlyView.This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin +4 more
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Production Engineering ArchivesThe article addresses a critical and timely issue: improving safety in underground coal mining. The primary objective of the paper was to develop a research methodology based on modelling studies to identify and assess the state of methane hazards during
Tutak Magdalena
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Assessing support alternatives for longwall gateroads subject to changing stress
International Journal of Mining Science and Technology, 2021 Longwall gateroad entries are subject to changing horizontal and vertical stress induced by redistribution of loads around the extracted panel. The stress changes can result in significant deformation of the entries that may include roof sag, rib ...
Gabriel S. Esterhuizen +4 more
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Design of Initial Mining Pressure Relief Scheme for Large‐Size Mining Face: A Case Study
Engineering Reports, Volume 8, Issue 4, April 2026.The numerical simulation analysis method is used to compare the actual mining face (315 m) with the designed mining face (200 m). The results show that the large mining height working face has larger abutment pressure peak and stress concentration factor than the general mining height working face.
Qinghu Wei +3 more
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