Results 1 to 10 of about 5,397 (163)

Optimization study on transverse mining zoning during the capacity expansion stage of nearly horizontal open-pit coal mines. [PDF]

Sci Rep
To address key challenges during the capacity expansion of the Baoqing Chaoyang Open-Pit Coal Mine from 7 to 11 Mt/a—such as insufficient working-line length, excessive advancing intensity, poor coordination between mining zones, elevated internal dump ...
Wen Y, Song Z, Su Q, Liu Z, Wu C, Zhang L.   +5 more
europepmc   +2 more sources

Open-Pit Mining Area Extraction from High-Resolution Remote Sensing Images Based on EMANet and FC-CRF

Remote Sensing, 2023
Rapid and accurate identification of open-pit mining areas is essential for guiding production planning and assessing environmental impact. Remote sensing technology provides an effective means for open-pit mine boundary identification. In this study, an
Zili Ren, Zhengxiang He, Wang Liguan
exaly   +3 more sources

Investigation on the transition depth of open pit to underground mining in Sijiaying iron mine. [PDF]

Sci Rep
When the expansion of an open pit limit is restricted by the permanent facilities located near the boundary of the pit, the traditional economic evaluation method is insufficient to determine the ultimate transition depth of mining from open pit to ...
Ma C, Ma Q, Cai M, Wang P, Zhu W, Li J, Lu Z.   +6 more
europepmc   +2 more sources

Blasting ore size detection based on efficient dehazing network and multi-dimensional feature fusion. [PDF]

Sci Rep
Ore particle size distribution is an important metric for evaluating blasting outcomes and affects the energy consumption of ore crushing equipment. Faced with dense accumulation of ore, nonuniform size distributions, dust occlusion, and target loss due ...
Li P, Xie S, Zhang W, Chen D, Peng S, Fang W, Zeng D.   +6 more
europepmc   +2 more sources

Effects of mass concentration and curing age on the mechanical properties and damage evolution of aeolian sand backfill. [PDF]

Sci Rep
As the critical load-bearing structure in the management of open-pit mine goaf areas, the mechanical properties of cemented backfill material play a decisive role in strata stability. This study investigates the influence of solids mass concentration (a)
Zhao G, Zhang Y, Zhang G, Zhang H, Zhang X.   +4 more
europepmc   +2 more sources

Open-pit mining geomorphic feature characterisation

International Journal of Applied Earth Observation and Geoinformation, 2015
Abstract Among the anthropogenic topographic signatures on Earth, open-pit mines are of great importance. Mining is of interest to geomorphologists and environmental researchers because of its implication in geomorphic hazards and processes. In addition, open-pit mines and quarries are considered the most dangerous industrial sector, with injuries ...
Jianping Chen, Kuo-Jen Chang, Giulia Sofia   +2 more
exaly   +2 more sources

On the organization of excavation and transportation equipment in the coal-bearing zones at open pit mines [PDF]

E3S Web of Conferences, 2021
One of the essential issues of the benches’ development procedure is the choice of the method of seam development in the complex structure: joint development of rock and coal seams in one complex face or their separate excavation in blocks of 50-100 m in
Tyulenev Maxim, Markov Sergey, Litvin Oleg, Cehlár Michal, Litvin Yaroslav   +4 more
doaj   +1 more source

Some peculiarities of excavation of three flat seams strata using draglines [PDF]

E3S Web of Conferences, 2021
One of the methods of increasing the efficiency of dragline operation is to optimize their work when mining the end sections of the cuts. This is especially important when the length of the work front is relatively short.
Fedotov Andrew, Litvin Yaroslav, Stukan Anton, Kapko Martin   +3 more
doaj   +1 more source

Passive Experiments for Monitoring Mining Operations by Dragline at Kuzbass Open Pits – Estimation of Coal Losses [PDF]

E3S Web of Conferences, 2020
The natural conditions for the formation of coal deposits in different regions of the globe are the same, all of them belong to reservoir sedimentary deposits and differ only in the degree of metamorphism and tectonic disturbances.
Selyukov Alexei, Byrdin Kirill
doaj   +1 more source

The Results of Mining and Geometric Analysis in Open Pit Mining of Promising Kuzbass Coal Deposits with Block System [PDF]

E3S Web of Conferences, 2020
Currently, in developing the most inclined and steep coal deposits in the Central and Northern Kuzbass (Western Siberia, Russia), the deeping longitudinal open pit mining method is used with overburden rock moved to external dumps using transport ...
Selyukov Alexei, Gerasimov Andrey, Grishin Valery   +2 more
doaj   +1 more source