Economical optimization of the mechanized longwall faces with top coal caving mining, in horizontal slices
I Onica, V Mihailescu, F Andrioni - Archives of Mining Sciences, 2016 - yadda.icm.edu.pl
To increase the economic and technical performances of the Jiu Valley hard coal mines, the
top coal caving, in horizontal slices, mining methods (Bourbaki methods) were introduced …
top coal caving, in horizontal slices, mining methods (Bourbaki methods) were introduced …