Results 71 to 80 of about 536 (168)
Geofluids, Volume 2026, Issue 1, 2026.To theoretically explain and quantify the effect of advancing speed (ADS) on ground pressure (GP) behavior, the 13,218 working face of the Xiaojihan Coal Mine (XCM) was taken as the engineering case. Field measurements and theoretical analysis were combined to examine how changes in ADS influence the roof structure and the support resistance ...
Hui Gao +7 more
wiley +1 more source
Shock and Vibration, Volume 2026, Issue 1, 2026.Aiming at the technical problem of the section coal pillar width in ultralong fully mechanized mining face under the influence of dynamic pressure, taking 11207 face in Yuandatan Coal Mine as the engineering background, the stress distribution and failure characteristics of surrounding rock under different sections of coal pillar in Yuandatan Coal Mine
Ying Ma +10 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
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.
Sheng Li +5 more
doaj +1 more source