Results 11 to 20 of about 46,511 (232)

Geopolymer-based modification of blasting sealing materials and optimization of blasting block size in coal seams of open pit mines

open access: yesInternational Journal of Mining Science and Technology, 2023
This research proposes the utilization of a geopolymer-based blasting sealing material to improve the profitability of coal sales and reduce the rate of coal fragmentation during blasting in open pit mines.
Xiaohua Ding   +7 more
doaj   +3 more sources

Research on Ecological Effect Assessment Method of Ecological Restoration of Open-Pit Coal Mines in Alpine Regions. [PDF]

open access: yesInt J Environ Res Public Health, 2022
Yuan M   +12 more
europepmc   +2 more sources

Land Use Dynamic Evolution and Driving Factors of Typical Open-Pit Coal Mines in Inner Mongolia. [PDF]

open access: yesInt J Environ Res Public Health, 2022
Zhang L   +9 more
europepmc   +2 more sources

Investigation on flow field characteristics in an open-pit coal mine [PDF]

open access: yesEnvironmental Science and Pollution Research, 2021
Abstract In this paper, the atmospheric flow field characteristics in a deep open-pit mine are investigated numerically and theoretically. A theoretical model on the recirculation length based on the energy equation is used, a total variation diminishing (TVD) difference scheme with second order accuracy is used to solve the NS equations with a
Wanjun, Tang   +3 more
openaire   +2 more sources

Landslide mechanism and stability of an open-pit slope: The Manglai open-pit coal mine

open access: yesFrontiers in Earth Science, 2022
Abstract A clear understanding of landslide mechanisms and stability analyses is of great significance for landslide monitoring, prediction, and control. A large-scale end wall landslide occurred on August 7–20, 2020, in the Manglai open-pit coal mine, China.
Tao Chen   +3 more
openaire   +3 more sources

Can you take the heat? – Geothermal energy in mining [PDF]

open access: yes, 2014
In 2013, there are less than 20 documented examples of operational geothermal systems on mine sites worldwide. This is surprising, since on remote mine sites, where fuels may have to be shipped in over great distances, heating and cooling from low ...
Preene, M., Younger, P.L.
core   +1 more source

Study on Optimization of Coal Truck Flow in Open‐Pit Mine [PDF]

open access: yesAdvances in Civil Engineering, 2020
A semicontinuous process system consisting of a single‐bucket excavator, truck, crushing station, and belt conveyor is the main coal mining process system of a large‐scale hard coal open‐pit mine. Through analyzing the coal mining production process, the key issues of coal mining truck flow optimization are obtained.
Haiming Bao, Ruixin Zhang
openaire   +2 more sources

Pollutant emission from fires at open-pit coal mines

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract Existing coal mining technologies are associated with significant pollution of the natural environment, especially atmospheric air. On top of this, in the event of an emergency related to the spontaneous combustion of coal, this negative impact significantly increases.
M A Murzin, N V Gorlenko
openaire   +1 more source

The closure of Michael Colliery in 1967 and the politics of deindustrialization in Scotland [PDF]

open access: yes, 2015
Michael Colliery in east Fife was the largest National Coal Board (NCB) unit in Scotland when it closed in 1967, following a disastrous fire which killed nine miners.
Phillips, Jim
core   +1 more source

Unravelling the relative contributions of climate change and ground disturbance to subsurface temperature perturbations: Case studies from Tyneside, UK [PDF]

open access: yes, 2016
When assessing subsurface urban heat islands (UHIs) it is important to distinguish between localized effects of land-use change and the impacts of global climate change. However, few investigations have successfully unraveled the two influences.
Westaway, Rob, Younger, Paul L.
core   +1 more source

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