Results 71 to 80 of about 531 (168)
Energy Science &Engineering, Volume 13, Issue 11, Page 5660-5671, November 2025.Feitian Coal Mine Inclined Longwall Roof Cutting and Pressure Relief Gob‐Retaining Technology: Research Background, Core Innovations and Future Directions. ABSTRACT To address the issues of tight mining‐excavation scheduling and challenging gas management in coal mines, this study proposes a technical scheme for inclined longwall roof cutting and ...
Xianbi Xu +3 more
wiley +1 more source
Meitan kexue jishuThe coal seam at the 2125 fully mechanized top-coal caving face in Hebi Coal Mine No. 6 exhibits unstable occurrence, with a thickness ranging from 0.4 m to 24 m and a dip angle varying between 8° and 35°.
Dongyin LI +5 more
doaj +1 more source
Meitan kexue jishu, 2023 The excavation thickness of the coal seam and the corresponding motion space of the overlying strata are so large in the fully-mechanized top coal caving face, that roof accidents are occur easily. In order to understand the mechanism of roof disasters in fully-mechanized caving working face, some cases of roof disasters in fully-mechanized caving ...
XU Gang +8 more
openaire +1 more source
Method of tail beam posture prediction of top coal caving hydraulic support based on LSTM
Meitan kexue jishuFully mechanized caving is the main mining method for extra-thick coal seams in my country. The control accuracy of the caving actuator depends largely on the data feedback of the tail beam posture.
Yupeng YAO, Jinglin ZHANG, Wu XIONG
doaj +1 more source
MATEC Web of Conferences, 2015 According to the characteristics of the 1-2 coal seam of Shangwan coal mine 4th panel, this research analyzed the feasibility of sublevel caving hydraulic support in the fully-mechanized mining face through estimation method and numerical simulation ...
Liu Yingjie, Wang Xiaomou
doaj +1 more source
Distribution of spontaneous combustion three zones and optimization of nitrogen injection location in the goaf of a fully mechanized top coal caving face. [PDF]
PLoS One, 2021 Qi Y, Wang W, Qi Q, Ning Z, Yao Y.
europepmc +1 more source
Energy Science & EngineeringReal‐time monitoring of the coal caving process in fully mechanized mining is crucial for achieving intelligent and efficient top‐coal caving. While the coal gangue identification method, employing vision and deep learning, has advanced in the realm of ...
PengFei Shan +3 more
doaj +1 more source
Gong-kuang zidonghuaContact coal-gangue identification requires studying the bearing characteristics of hydraulic support top beams in fully mechanized top coal caving. However, existing research primarily focuses on the bearing characteristics of supports before and after ...
HUO Yuming +3 more
doaj +1 more source
Journal of environmental biology, 2016 In a mine area, some environment geotechnics problems always occure, induced by mined-out region such as the subsidence and cracks at ground level, deformation and destruction of buildings, landslides destruction of water resources and the ecological environment.
Jian, Liu +4 more
openaire +1 more source
Applied SciencesTo address the stability control challenges of the “support-surrounding rock” system in fully mechanized top-coal caving faces within steeply dipping coal seams, this study employs an integrated approach combining theoretical analysis and numerical simulations, revealing the three-dimensional boundary morphology of the top-coal limit equilibrium zone ...
Ding Lang +3 more
openaire +2 more sources