Increase of efficiency of drilling machines utilization during drilling of small-diameter boreholes at mica mines
Authors:
Abstract
At the system of underground development of mica-bearing veins of small and medium thickness with open cleaning space, which is being implemented nowadays, it is necessary to drill vertical or slightly inclined boreholes with a diameter of 50-75 mm and a depth of 15-25 m.
Область исследования:
(Archived) Without section
Funding:
None
Similar articles
Selection of some machine parameters for drilling directional wells of long length
1984 Yu. B. Sinai, V. A. Ushkalo
Теоретическая оценка влияния скольжения зубьев на эффективность бурения горных пород шарошечными долотами
1984 G. M. Kryukov, Ny Van Bak
Conducting drilling and blasting works in cramped conditions
1984 V. P. Tarasenko, V. I. Sivenkov, V. V. Pupkov