Results 11 to 20 of about 46,400 (239)

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

3D LiDAR motion distortion algorithm for open-pit coal mine

open access: yesMeitan kexue jishu
In recent years, the coal mining industry in China has been experiencing rapid growth, resulting in an increasing adoption of intelligent technologies.
Hui LI   +5 more
doaj   +2 more sources

Pumped storage hydropower in an abandoned open-pit coal mine: Slope stability analysis under different water levels

open access: yesFrontiers in Earth Science, 2022
Many coal mines are being abandoned for economic and environmental reasons in China. The repurposing of abandoned open-pit coal mines into pumped storage hydropower (PSH) can help with the storage of renewable energy, improve mine environments, and ...
Feiyue Liu   +8 more
doaj   +1 more source

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

The application for a prediction of the coal spontaneous ignition – Predisam [PDF]

open access: yes, 2017
The article follows the research of the project number TA01020351 called "The research of possibilities when predicting steam origin and consequent spontaneous ignition of brown coal fuels" which was researched with the support of the Technological ...
Blata, Jan   +3 more
core   +2 more sources

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

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

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

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

Way of Carbon Emission Reduction in Coal Mines Based on Carbon Balance Method and B-Wilson Method

open access: yesChemical Engineering Transactions, 2018
This study is to analyze carbon balance method and B-Wilson method in carbon emission reduction in coal mines. The carbon balance method and B-Wilson method are studied in four open-pit coal mines in Yimin River, Anjialing, Heidaigou and Buzhaoba.
Shuhui He
doaj   +1 more source

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