Results 41 to 50 of about 53,082 (303)

Perspectives for the Transportless Mining Technology in Siberia and Far East Coal Deposits [PDF]

E3S Web of Conferences, 2019
In accordance with the long-term program for the coal industry development in Russia until 2030, the growth in the share of the Far East Federal District in the total coal production should be 2.5% compared to 2018.
Markov Sergey, Janočko Juraj, Tyulenev Maxim, Litvin Yaroslav   +3 more
doaj   +1 more source

Discussion on the stability evaluation standard of a rock slope in a noncoal open-pit mine

工程科学学报, 2022
As an important way to obtain mineral resources, open-pit mining has accounted for about 77% of the total production of the mined iron ore, and about 52% of the total production of non-ferrous ore, indicating huge development potential.
Shun-chuan WU, Peng-bin HE, Hai-yong CHENG, Guang-he WANG, Xiao-qiang ZHANG, Zhong-xin ZHANG   +5 more
doaj   +1 more source

Controlled mining technology of multi-weak bedding down-dipping soft rock slope

Meikuang Anquan
Aiming at the problem of coal at the lower part of multi-weak bedding down-dipping soft rock slope, from the perspective of controllable slope deformation risk and the maximization of resource recovery, based on the analysis of geological data and weak ...
Jiao WANG, Qingdi CUI, Chengjiang LIANG, Daolong QU, Haiyang FENG, Hanquan LIU   +5 more
doaj   +1 more source

Influence of coal spontaneous combustion on slope stability of high and steep open-pit mine and countermeasures

Meikuang Anquan, 2022
In order to explore the influence of coal seam spontaneous combustion process on slope stability, the slope slip process under different coal seam spontaneous combustion depths was simulated by using FLAC3D based on the engineering background of Hequ ...
LUO Ke, GAO Yu, ZHANG Bin
doaj   +1 more source

Research on characteristics and prediction of vehicle speed in open-pit mines based on spatiotemporal and meteorological factors

Gong-kuang zidonghua
Existing prediction models for vehicle speed in open-pit mines do not fully consider the influence of meteorological factors on operating speed. The data sample sets are insufficient to train or fine-tune deep learning models.
QU Daolong, FU Ensan, PAN Fei, LIU Hanquan, YANG Yanfeng, LIU Guangwei   +5 more
doaj   +1 more source

Monitoring and Analysis of the Collapse at Xinjing Open-Pit Mine, Inner Mongolia, China, Using Multi-Source Remote Sensing

Remote Sensing
The collapse of open-pit coal mine slopes is a kind of severe geological hazard that may cause resource waste, economic loss, and casualties. On 22 February 2023, a large-scale collapse occurred at the Xinjing Open-Pit Mine in Inner Mongolia, China ...
Nian Zhang, Yunjia Wang, Feng Zhao, Teng Wang, Kewei Zhang, H. Fan, Dawei Zhou, Leixin Zhang, Shiyong Yan, Xinpeng Diao, R. Song   +10 more
semanticscholar   +1 more source

Research Progress of Soil and Vegetation Restoration Technology in Open-Pit Coal Mine: A Review

Agriculture, 2023
Open-pit mining has caused extensive land destruction, including land abandonment and reduction in agricultural land, resulting in serious environmental problems.
Daolong Xu, Xiufen Li, Jian Chen, Jianghua Li   +3 more
semanticscholar   +1 more source

Technology and application of damage reduction mining and ecosystem restoration of open-pit coal mines in eastern grassland area

Meitan kexue jishu, 2023
The eastern grassland region is an important coal energy base in China, and coal development has made great contributions to the energy security supply of the northeast region and the economic development of China. In response to the problems of cold and
LI Quansheng, LI Lin
doaj   +1 more source

Slope Stability Analysis of Open-Pit Mine Considering Weathering Effects

Applied Sciences
Weathering processes gradually alter the physical and mechanical attributes of slope materials, weakening the structural integrity and stability of slopes.
Wei Liu, Gang Sheng, Xin Kang, Min Yang, Danqi Li, Saisai Wu   +5 more
semanticscholar   +1 more source

Effect of detonator position on rock fragmentation: Full-scale field tests at Kevitsa open pit mine

International Journal of Rock Mechanics And Mining Sciences, 2021
The effect of detonator position on rock fragmentation was studied at the Kevitsa open pit mine. Five full-scale field tests were conducted where the blasts were divided into test and reference areas, and compared with each other.
R. Ylitalo, Zong-Xian Zhang, Pekka Bergström   +2 more
semanticscholar   +1 more source