Results 1 to 10 of about 254 (118)

Study on Intelligent Identification Method of Coal Pillar Stability in Fully Mechanized Caving Face of Thick Coal Seam [PDF]

Energies, 2020
The combination of coal precise mining and information technology in the new century is one of the important directions for the future development of coal mining.
Jingjing Dai, Pengfei Shan, Qi Zhou
doaj   +4 more sources

Research and application of key technology of intelligent coal caving in high gas fully-mechanized top coal caving face

Meitan kexue jishu, 2023
At present, intelligent coal caving in high gas fully mechanized top coal caving face is facing many problems, mainly including poor recognition accuracy of coal gangue, incomplete control research on coal flow and gas concentration, cumbersome design ...
Yao CUI, Jinghong WU, Zhuang YE, Senlang ZHANG   +3 more
doaj   +2 more sources

Intelligent decision-making method for coal caving based on fuzzy deep Q-network

Gong-kuang zidonghua, 2023
During the coal caving process in the fully mechanized caving face, due to the impact of coal dust and dust water mist on the workers' line of sight, there are problems of over-caving and under-caving in manually controlled coal caving. In order to solve
YANG Yi, WANG Shengwen, CUI Kefei, FEI Shumin   +3 more
doaj   +2 more sources

Research on key technology of intelligent fully mechanized caving face construction in Baode Coal Mine

Gong-kuang zidonghua, 2023
The current research achievements in the construction of intelligent fully mechanized caving face lack systematic implementation case for a specific fully mechanized caving face.
WU Xicang, ZHANG Xueliang, RUAN Jinlin, WANG Zhiqiang   +3 more
doaj   +2 more sources

Vibration response difference of caving mechanism under coal rock impact based on mechanical–hydraulic coupling [PDF]

Scientific Reports, 2023
Top coal caving in fully mechanized caving mining will cause an irregular impact on the caving mechanism of hydraulic support. The vibration response of the caving mechanism varies under different forms of impact.
Yanpeng Zhu, Qingliang Zeng, Lirong Wan, Yang Yang, Zhe Li   +4 more
doaj   +2 more sources

Research progress on intelligent coal caving theory and technology

Gong-kuang zidonghua
The longwall top-coal caving technology is an effective method for extracting thick and ultra-thick coal seams, and it has become a hallmark technology in China's coal mining industry.
WANG Jiachen, YANG Shengli, LI Lianghui, ZHANG Jinwang, WEI Weijie   +4 more
doaj   +2 more sources

Influence of particle characteristics on dynamic characteristics of tail beam under coal rock caving impact

Frontiers in Energy Research, 2022
In order to improve the accuracy of simulation parameters used in the discrete element simulation test of a fully mechanized top-coal caving process and further explore the intelligent fully mechanized coal caving technology, this research work studies ...
Lijuan Zhao, Lijuan Zhao, Liguo Han, Haining Zhang, Man Ge, Shijie Yang, Xin Jin   +6 more
doaj   +3 more sources

Dynamic Random Arching in the Flow Field of Top-Coal Caving Mining

Energies, 2018
The large mining height fully mechanized top-coal caving mining technique has developed rapidly and become the most extensively used mining method for ultra-thick coal seams. The arching of coal/gangue and the drawing out of gangue are peculiar phenomena
Ningbo Zhang, Changyou Liu, Xiaojie Wu, Tingxiang Ren   +3 more
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Influences of coal-rock interface morphology’s spatiotemporal evolutionary characteristics on top coal caving law [PDF]

Scientific Reports
The work examined how the spatiotemporal evolution of the coal-rock interface morphology affected the top coal caving ratio. The geological conditions of the 3307 fully mechanized caving face at Tang’an Coal Mine served as the research context.
Yupeng Shen, Tuo Yang, Jianzhuang Liu, Yang Li, Jianqiao Luo, Xiaonan Zhang   +5 more
doaj   +2 more sources

Application of intelligent top-coal caving technology in overlying aquifer protection of extra-thick coal seam

Meitan kexue jishu
The grassland areas in eastern Inner Mongolia and northern Xinjiang are rich in coal and groundwater resources. The mining fissures formed by high-intensity coal mining are easy to lead to the strong water-rich aquifer, and it is very easy to cause the ...
Weixuan CHENG, Jingchuan CHEN, Lihui ZHANG, Shengyou LIU, Xin HE, Weidong PAN   +5 more
doaj   +2 more sources