Results 31 to 40 of about 2,129 (172)

Development of innovation team construction and key technology research in coal mine intelligence

Gong-kuang zidonghua, 2022
This paper analyzes the outstanding technical weaknesses in the intelligent construction of coal mines in China. This paper puts forward 12 innovative research and development directions, including intelligent system design, information infrastructure ...
WANG Guofa, FU Jiaxing, MENG Lingyu
doaj   +1 more source

Image feature extraction and recognition model construction of coal and gangue based on image processing technology

Scientific Reports, 2022
Using image recognition technology to realize coal gangue recognition is one of the development directions of intelligent fully mechanized caving mining.
Lei Zhang, YiPing Sui, HaoSheng Wang, ShangKai Hao, NingBo Zhang   +4 more
doaj   +1 more source

Feature extraction and classification method of coal gangue acoustic signal during top coal caving

矿业科学学报, 2021
To achieve the intelligent recognition of coal gangue in fully mechanized caving face, a coal caving acoustic signal collection device is designed, which can sense the movement of the tail beam and automatically trigger data collection.Field data is ...
Yuan Yuan, Wang Jiawen, Zhu Desheng, Wang Jiachen, Wang Tonghai, Yang Kehu   +5 more
doaj   +1 more source

Review of experimental methods to determine spontaneous combustion susceptibility of coal – Indian context [PDF]

, 2016
This paper presents a critical review of the different techniques developed to investigate the susceptibility of coal to spontaneous combustion and fire.
Ahamed S., Bagchi S., Bagchi S., Banerjee S.C., Banerjee S.C., Banerjee S.C., Banerjee S.C., Beamish B.B., Bhattacharyya K.K., Chamberlain E.A.C., Chamberlain E.A.C., Chandra D., Chandra D., Chandra D., Chandra D., CMR, Davis J.D., Didari V., E. Lester, Feng K.K., Feng K.K., Ganguli M.K., Gray R.J., Guney M., Guney M., Hodges D.J., Hodges D.J., Holtberg P., I. S. Lowndes, Jing S.H.E.N., Jo W., Joshua R., Kaymakci E., Kim A.G., Kim A.G., Kreulen D.J.W., Low M.J.D., Mahadevan V., Miron Y., MOC, Mohalik N.K., Mohalik N.K., Mohalik N.K., Mohalik N.K., Mukherjee R.K., Myles A.S., N. K. Mohalik, Nandy D.K., Nandy D.K., Nandy D.K., Nimaje D., Nimaje D.S., Nimaje D.S., Nimaje D.S., Nubling R., Nugroho Y.S., Panigrahi D.C., Raju G.S.N., Ray S., Rosema A., Rosin P., Schmal D., Sen R., Shu X., Smith A.C., Smith A.C., Sondreal E.A., Stopes M.C., Van Doornum G.A.W., van Krevelen D.W., Zhang W., Zhu H., Zutshi A.   +72 more
core   +2 more sources

Experimental and numerical modelling investigations into coal mine rockbursts and gas outbursts [PDF]

, 2022
Rockbursts and gas outbursts are a longstanding hazard in underground coal mining due to their sudden occurrences and high consequences. These hazards are becoming prominent due to the increase in mining depth, difficult mining conditions, and adverse ...
Agrawal, Harshit
core   +1 more source

Research on the intelligent coordinated top-coal caving model and key technologies in extra-thick coal seams

河南理工大学学报. 自然科学版
ObjectivesFully mechanized top-coal caving is a safe and efficient mining method for extra-thick coal seams. However， the complexity of the caving environment， the challenges in coordinating mining and caving， and the numerous factors influencing caving ...
LI Dongyin, WANG Zuguang, WANG Shen, LI Huamin, PENG Weiping, LI Hongbin, ZHANG Guopeng, ZHANG Xuhe   +7 more
doaj   +1 more source

Performance Analysis of Coal Gangue Recognition Based on Hierarchical Filtering and Coupled Wrapper Feature Selection Method

IEEE Access, 2023
Coal gangue recognition of top coal caving is one of the important links in the process of intelligent coal mine construction. However, the recognition accuracy of this technology in practical application is still challenging, because the recognition ...
He Li, Yao Zhang, Yang Yang, Qingliang Zeng   +3 more
doaj   +1 more source

Safe passing critical criterion for drawn top-coal on rear conveyor and accurate control approach for drawing opening dimension [PDF]

, 2023
Fully mechanized top coal caving technology has become the mainstream way of high yield and high efficiency mining in extra thick coal seams in China.
Donghui LI, Dongyin LI, Lijun ZHENG, Qing LIU, Shen WANG, Shiting ZHU, Xueliang ZHANG, Xuhe ZHANG, Zhizeng HUANG   +8 more
core   +1 more source

Top coal thickness detection method for intelligent fully-mechanized working face

Gong-kuang zidonghua, 2021
Detecting the thickness of the top coal in a fully mechanized working face in advance can provide a basis for precise control of the top coal caving, which is beneficial to achieving a balance between the coal caving recovery rate and coal quality.
YANG Xiuyu1, LIU Shuai2,3, LIU Qing2,3, YANG Qingxiang1   +3 more
doaj   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

Deep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu, Manchao He, Jun Yang, Yubing Gao, Qiang Fu, Qing Ma, Yajun Wang   +6 more
wiley   +1 more source