Results 11 to 20 of about 2,304 (177)

Characteristics of dust pollution and its influencing factors during cold period of open-pit coal mines in northern China

open access: yesFrontiers in Earth Science
IntroductionWinter dust pollution in China’s northern open-pit coal mines is serious, and the prevention and control of winter dust pollution is one of the important problems in the construction of green mines in northern open-pit coal mines.MethodsIn ...
Heng Wang   +4 more
doaj   +2 more sources

Study on Dust Hazard Levels and Dust Suppression Technologies in Cabins of Typical Mining Equipment in Large Open-Pit Coal Mines in China

open access: yesAtmosphere
As the world’s largest open-pit coal producer, China faces severe dust pollution in mining operations. Cabins of mining equipment (electric shovels, haul trucks, drills) exhibit unique micro-environmental contamination due to dual-source pollution ...
Xiaoliang Jiao   +7 more
doaj   +2 more sources

Characterization and Concentration Prediction of Dust Pollution in Open-Pit Coal Mines

open access: yesAtmosphere
Dust pollution is a major problem formed caused by opencast coal mining, and its prevention is a key prerequisite for the realization of green and climate-friendly mining in open-pit coal mines.
Guilin Wang   +4 more
doaj   +2 more sources

Prediction of road dust concentration in open-pit coal mines based on multivariate mixed model. [PDF]

open access: yesPLoS One, 2023
The problem of dust pollution in the open-pit coal mine significantly impacts the health of staff, the regular operation of mining work, and the surrounding environment. At the same time, the open-pit road is the largest dust source.
Wang M   +6 more
europepmc   +2 more sources

Analysis of the impact of rock joint cracks on blastability of burnt rock in Xinjiang open pit coal mines. [PDF]

open access: yesSci Rep
In response to the problems of developed rock fractures and unsatisfactory bench blasting effects in open-pit coal mines in Xinjiang, China, By using on-site research, theoretical analysis, numerical simulation and other methods, the main influencing ...
Song Z, Wen Y, Jia Z.
europepmc   +2 more sources

Determination of production capacity for open-pit coal mines under uncertainty: A model based on economies of scale. [PDF]

open access: yesPLoS One
The determination of optimal production capacity for open-pit mines is influenced by various economic and technical factors and is highly susceptible to uncertainties.
Wang S, Cao B, Bai R, Liu G.
europepmc   +2 more sources

Investigation of dust distribution patterns in open-pit coal mines under varying wind speed and air humidity. [PDF]

open access: yesSci Rep
Dust pollution in open-pit coal mines presents substantial environmental and occupational health hazards, requiring effective control measures. Although previous research has thoroughly investigated the correlation between wind speed and dust mass ...
Tian D, Qu W, Wang J, Yao J, Fu H.
europepmc   +2 more sources

Impact of root exudates on soil reconstruction and bacterial community resumption in open-pit coal mines. [PDF]

open access: yesFront Microbiol
Open-pit coal mine reconstructed ecosystems are ecologically fragile. Retained early stage topsoil is usually not enough to maintain plant growth. For this purpose, we used root exudates to fertilize the reconstructed soil and improve the functioning of ...
Yang Z   +6 more
europepmc   +2 more sources

Research on the prediction of blasting fragmentation in open-pit coal mines based on KPCA-BAS-BP. [PDF]

open access: yesSci Rep
The blasting block size of open-pit mines is influenced by many factors, and the influencing factors have a very complex nonlinear relationship. Traditional empirical formulas and a single neural network model cannot meet the requirements of modern ...
Liu S, Qu E, Lv C, Zhang X.
europepmc   +2 more sources

Optimization of Land Saving and Loss Reducing and Slope Stability Variation Patterns in Open-Pit Mine

open access: yesGeofluids, 2021
This study presents different land saving and loss reducing schemes. Comprehensively compare the economic benefits of the schemes. It is shown that the optimal scheme can recover tons of coal resources on the south slope, creating significant economic ...
Tongsuo Guo   +9 more
doaj   +1 more source

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