Results 21 to 30 of about 2,129 (172)

Research and application of intelligent caving technology in fully mechanized working face

open access: yesGong-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
doaj   +1 more source

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

open access: yesFrontiers 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   +6 more
doaj   +1 more source

Mining Safety and Sustainability I [PDF]

open access: yes, 2022
Safety and sustainability are becoming ever bigger challenges for the mining industry with the increasing depth of mining. It is of great significance to reduce the disaster risk of mining accidents, enhance the safety of mining operations, and improve ...

core   +1 more source

Intelligent recognition of coal and rock based on wavelet packet multi-scale fuzzy entropy and weighted KL divergence

open access: yesGong-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
doaj   +1 more source

Automatic operation and manual intervention analysis system for intelligent fully mechanized caving face

open access: yesGong-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
doaj   +1 more source

PREDVIĐANJE VISINE SLOMA PRIMJENOM PROGRAMIRANJA GENSKE EKSPRESIJE U AUSTRALSKIM ŠIROKOČELNIM OTKOPIMA, KOMPARATIVNA STUDIJA [PDF]

open access: yes, 2022
The caving and subsidence developments above a longwall panel usually result in fractures of the overburden, which decrease the strength of the rock mass and its function.
Madani, Sayyed Hasan   +2 more
core   +2 more sources

Mining footprint of the underground longwall caving extraction method: a case study of a typical industrial coal area in China [PDF]

open access: yes, 2022
Longwall caving mining (LCM) can lead to many environmental problems that have drawn worldwide attention. A previous survey found that most scholars tend to analyze the two issues separately, that is, coal mining-induced subsidence and heavy metal ...
Liu, Hengfeng   +6 more
core   +1 more source

Innovative Development and Application of Fully Mechanized Top Coal Caving Mining Technology in Yankuang Group

open access: yesMeikuang Anquan, 2020
This paper systematically summarizes the development process of fully mechanized top coal caving technology and equipment in Yankuang Group in recent 30 years.
MENG Xiangjun, LI Mingzhong, YUE Ning, SUN Jishuang
doaj   +1 more source

Towards safer mining: the role of modelling software to find missing persons after a mine collapse [PDF]

open access: yes, 2018
Purpose. The purpose of the study is to apply science and technology to determine the most likely location of a container in which three miners were trapped after the Lily mine disaster.
Ashraf, H, Cawood, F
core   +1 more source

Development of Intelligent Technologies and Machinery for Coal Mining in China’s Underground Coal Mines

open access: yes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
doaj   +1 more source

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