Results 131 to 140 of about 46,511 (232)

Analysis of Blasting Fragmentation Characteristics in Open-Pit Coal Mine

Meikuang Anquan, 2020
The distribution of blasting fragmentation in open pit coal mines is an important factor influencing the efficiency of resource mining. To clarify the distribution characteristics of coal rock mass under blasting, we use a Split Hopkinson Pressure Bar (SHPB) test system to perform specimen failure test under impact load, and use direct sieving method ...
openaire   +1 more source

[Energy requirements of miners engaged in open-pit coal mining].

Voprosy pitaniia, 1988
It has been found that according to the value of daily energy consumption the coal miners engaged in open-cast mining should be referred to group III-IV of work intensity. The determining component of daily energy consumption is energy consumption during the working period the value of which depends on the character of working activity and duration of ...
G M, Pichkhadze, A E, Shalygin, Iu N, Zubtsov   +2 more
openaire   +1 more source

Coal Handling Operational Risk Management: Stripped Overburden Transport in Brown Coal Open Pit Mines

Acta Montanistica Slovaca, 2020
Vanek, Michal, Fidalgo Valverde, Gregorio, Cerny, Igor, Hudecek, Vlastimil   +3 more
openaire   +3 more sources

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

Sci Rep
Wen Y, Song Z, Su Q, Liu Z, Wu C, Zhang L.   +5 more
europepmc   +1 more source

Influence of rock stratification on the performance of tailored wetting agents in open pit coal mines. [PDF]

Sci Rep
Zhao X, Shen Z, Bharti B, Han F, Feng S.
europepmc   +1 more source

The Mining Industries, 1899-1939: A Study of Output, Employment, and Productivity [PDF]

Harold Barger, Sam H. Schurr
core   +9 more sources

Cloud-based slope risk monitoring and early warning system for open-pit coal mines: a case study of Zhonglian Runshi. [PDF]

Sci Rep
Dong X, Li S, Ma R, Tian W, Zhao K, Xiang H, Zhu J, Qiu Y.   +7 more
europepmc   +1 more source

"A pick in one hand and a spade in the other". To what extent was life in a Carmarthenshire mining area different from one in Glamorgan between 1880 and 1914? [PDF]

, 2018
Evans, Sian
core  

YUN-YAGINSKI OPEN-PIT COAL MINE – GOLD COAL OF THE POLAR REGION [PDF]

Ugol', 2018
L.P. Leiderman, R.R. Galeev, M.I. Stolyarov   +2 more
openaire   +1 more source

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

Front Microbiol
Yang Z, Niu J, Wu T, Li J, Zhang L, Chen X, Berndtsson R.   +6 more
europepmc   +1 more source