Results 31 to 40 of about 310 (146)
Coal wall bending calculation and spalling risk classification using Chebyshev polynomials
Geomechanics and Geophysics for Geo-Energy and Geo-ResourcesIn view of the severe constraints of coal wall spalling and roof caving problems on the productivity release and intelligentization process of large mining height working faces, this paper comprehensively analyzes the key factors affecting coal wall ...
Zhining Zhao +6 more
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Research and application of intelligent caving technology in fully mechanized working face
Gong-kuang zidonghua, 2021 The traditional top coal caving control mainly relies on manual coal caving control, which uses single-round of sequential coal caving. The working face equipped with electro-hydraulic control system mainly adopts the two-round sequential coal caving ...
WU Tong, YU Rui, LIU Qing, WEI Wenyan
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Gong-kuang zidonghua, 2023 Intelligent recognition of collapsed coal and rock is a prerequisite for intelligent coal caving. Real-time and precise recognition of collapsed coal and rock can avoid the problem of 'under caving' or 'over caving' of top coal caused by manual coal ...
LI Yiming
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Gong-kuang zidonghua, 2020 In the context of intelligent fully mechanized caving and mining, it is important to consider not only the cutting by the shearer, but also the coal caving at the back of the support and top coal recovery.
HAN Xiuqi +4 more
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Progress and application of intelligent fluid supply technology in working face [PDF]
, 2022 Intelligent fluid supply technology in working face is one of the core technologies of intelligent mining. In order to solve the requirements of high data transmission rate, high transmission stability and high data processing ability in the intelligent ...
Kangkang ZHAO +11 more
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中国工程科学, 2023 the carbon peaking and carbon neutralization goals and the wave of intelligent coal mine construction, China’s coal machinery industry will transform and upgrade toward intelligence, green, safety, and efficiency.
Ge Shirong +6 more
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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 +4 more
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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 +5 more
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Review and development of surrounding rock control technology for gob-side entry retaining in China [PDF]
, 2023 The research and application of gob-side entry retaining (GER) technology in Chinese coal mines has been over 60 years. Two major technical types including GER with filling and GER with roof cutting were developed.
Ying XU +7 more
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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 +7 more
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