Results 21 to 30 of about 72,151 (302)
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 +5 more
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Study on Optimization of Coal Truck Flow in Open‐Pit Mine [PDF]
Advances 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
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Study on direction of coal utilization in open-pit mine based on VIKOR method
Meikuang Anquan, 2021 During the production of open pit coal mine, coal seams with different natural index values of coal quality are often mined at the same time. In view of this phenomenon, the market competitiveness of enterprises can be improved through the balance of ...
YANG Fuqing, ZHOU Wei, LU Xiang, TIAN Ya, KONG Ruiqian, CAI Qingxiang
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Pollutant emission from fires at open-pit coal mines
IOP 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
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Meikuang Anquan, 2020 This paper first analyzes the existing problems of open-pit coal mine from the perspective of industry background, policy guidance, management and control concept, expounds the necessity of establishing intelligent mine, studies the definition, overall ...
HE Shuai, WANG Haiyang, ZHAO Li
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Reasonable coal pillar design and remote control mining technology for highwall residual coal resources [PDF]
Royal Society Open Science, 2019 Highwall mining (HWM) technology is an efficient method for exploiting residual coal resources in Chinese open-pit coal mines. However, on-site personnel and equipment can be damaged by the instability of the highwall mining residual coal pillars and ...
Fangtian Wang, Cun Zhang
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Meitan kexue jishu, 2023 Due to the discontinuity of the stripping project in seasonal stripping open-pit coal mines, the untimely advance distance of the working slope is huge. In order to reduce the advance stripping and save the stripping distance, research was carried out on
Guangwei LIU +3 more
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Can you take the heat? – Geothermal energy in mining [PDF]
, 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.
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Mathematics, 2022 The stability of an open-pit slope is an extremely important factor related to the safe production of an open-pit mine. It is the first safety technical problem encountered and should be solved in the process of mine design and production.
Xiaoyan Du, Jinfei Chai
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Unravelling the relative contributions of climate change and ground disturbance to subsurface temperature perturbations: Case studies from Tyneside, UK [PDF]
, 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.
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