Results 11 to 20 of about 320 (151)

Study on dynamic modification method of 3D model of coal seam in fully mechanized working face

open access: yesGong-kuang zidonghua, 2022
The high-precision coal seam geographic information of fully mechanized working face is the key to realizing intelligent unmanned mining. However, the vertical precision of 3D model of coal seam constructed at this stage is low. The model cannot meet the
LIANG Shua   +4 more
doaj   +2 more sources

Innovation progress and prospect on key technologies of intelligent coal mining

open access: yesGong-kuang zidonghua, 2018
Innovation and practice were summarized overall about intelligent fully mechanized coal mining in thin coal seam and thinner coal seam, intelligent fully mechanized coal mining of large mining height and super large mining height in thick coal seam, and ...
WANG Guofa   +3 more
doaj   +2 more sources

Key technologies and demonstration of unmanned steeply inclined short-wall fully mechanized top-coal caving intelligent mining [PDF]

open access: yesMeitan kexue jishu
Since the 14th Five-Year Plan, my China’s coal mine digital intelligence technology has developed rapidly, especially in thin coal seam mining. However, the unmanned intelligent mining technology of steeply inclined short-wall fully mechanized caving is ...
Haodang LI   +10 more
doaj   +2 more sources

Application and Development of Smart Mine in China [PDF]

open access: yesMATEC Web of Conferences, 2019
The development of coal mining from ancient times to today has experienced the artificial stage, the mechanized mining stage, and the automated mining stage. Now it is developing towards a safer, greener and more efficient unmanned and smart mine.
Xu Ying   +3 more
doaj   +2 more sources

Application of Pre-Splitting and Roof-Cutting Control Technology in Coal Mining: A Review of Technology

open access: yesEnergies, 2022
According to the development requirements of green mining of coal resources, it is imperative to improve the extraction rate of coal and the application of safe and efficient mining technology.
Shengrong Xie   +8 more
doaj   +2 more sources

Coal Rock Image Feature Extraction and Recognition Method Based on LBP and GLCM

open access: yesMeikuang Anquan, 2020
Aiming at the unmanned requirements of coal mining face, a method for extracting and identifying coal rock image features based on LBP and GLCM is proposed. The LBP algorithm is used to judge the difference of the rock texture of the coal block.
WANG Chao, ZHANG Qiang
doaj   +2 more sources

Off-Site Geological Surveying of Longwall Face Based on the Fusion of Multi-Source Monitoring Data

open access: yesMathematics
A high-precision coal seam model is crucial to improving the adaptability of unmanned mining technology to geological conditions. However, the accuracy of a coal seam model constructed with boreholes and geophysical data is far from the required accuracy
Mengbo Zhu   +5 more
doaj   +2 more sources

Construction and correction of a 3D digital twin for a complex gangue-bearing coal seam [PDF]

open access: yesMeitian dizhi yu kantan
Objective3D digital twin for complex gangue-bearing coal seams are designed to achieve an information-based description of physical coal seams and faithfully map their virtual forms.
Meichen ZHANG   +3 more
doaj   +2 more sources

Engineering application and demonstration of intelligent mining control technology for rockburst coal seam [PDF]

open access: yesMeitan kexue jishu
How to achieve intelligent, safe and efficient mining of rockburst coal seams is a major engineering and technical challenge facing deep coal mining. The core connotation of this issue lies in the intelligent, unmanned, and inherently safe mining of coal
Hegang QI   +8 more
doaj   +2 more sources

Research of intelligentized coal mining mode and key technologies

open access: yesGong-kuang zidonghua, 2016
In view of ambiguous status of concept, mode and key technologies of intelligentized coal mining, the paper briefly described concept and difference of unmanned technologies, intelligentized technologies and digitization technologies. In combination with
TIAN Chengji
doaj   +1 more source

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