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Showing: 1 to 10 of 135 matches for "handheld rock drills"  Page   1   2   3   4   5   6   7   8   9  next
TITLE Noise Test Report: Handheld Pneumatic Rotary Drill 
SUMMARY ... strata. Its configuration is similar to that of the handheld stopers or jackleg
drills common to American hard-rock mines. The drill ...
AUTHOR Stein, Robert R.
PUBLISHED 1989
TITLE The Loco Drill And Its Application To Flat End Development 
SUMMARY ... The conventional method, as in the past, makes use of handheld pneumatic rock drills,
while the mechanized method described in this paper utilizes a Loco Drill ...
AUTHOR McKeown, B. ; Moxham, K.
PUBLISHED 2006
TITLE Extensive Mechanization Produces Record Performance In Drill-Blast Tunnelling 
SUMMARY ... An 8-ton locomotive plus a small train carrying a portable air compressor,
a flatbed car with pneuatic handheld rock drills and tools. ...
AUTHOR Hamrin, Hans
PUBLISHED 1987
TITLE The Development And Implementation Of The Lonmin Mechanized Breast Mining 
SUMMARY ... Drilling with pneumatic handheld rock drills and multiple changes of steel it takes
15 to 20 minutes to install a bolt ➤ Remote control to be studied/offered ...
AUTHOR Pickering, R. G. B.
PUBLISHED 2007
TITLE New Developments In Ground Support Technology For Open-Type Tunnel Boring Machines 
SUMMARY ... bers typically used hand-held air drills, or stoper drills, to install rock bolts
from ... 1 Historical TBM ground support methods using handheld air drills and ...
AUTHOR Chorley, Steve
PUBLISHED 2011
TITLE Measuring the Sound Power Level of Percussion Drills 
SUMMARY ... 5. Handheld drill comparison ... ABSTRACT Occupational noise caused by the rock drills
used in mining was investigated by the US Bureau of Mines. ...
AUTHOR Stein, Robert R.
PUBLISHED 2010
TITLE The Development And Implementation Of The Lonmin Mechanized Breast Mining 
SUMMARY ... Install 15 to 20 bolts per shift. Drilling with pneumatic handheld rock drills and
multiple changes of steel it takes 15 to 20 minutes to install a bolt. ...
AUTHOR Pickering, R. G. B. ; Moxham, K.
PUBLISHED 2006
TITLE Room and pillar mining in chrome and platinum mines 
SUMMARY ... Roof support is done by means of systematic roof bolting. The operation is
currently still done with handheld pneumatic rock drills. ...
AUTHOR Lubbe, O. S. ; Annandale, G. ; van Wyk, J. W.
PUBLISHED 2001
TITLE A Long Hole Stoping System For Mining Narrow Platinum Reefs - Introduction 
SUMMARY ... Limited flexibility in terms of stope width has necessitated drilling by means
of hand held, pneumatic rock drills at most of our operations. ...
AUTHOR Dorssen, P. van
PUBLISHED 2002
TITLE A comparison between hydraulic and pneumatic rockdrills 
SUMMARY ... distinction between mounted drift- ers and handheld jackhammers ... If one were to
re-introduce pneumatic rock- drills operating with the dense air system, academic ...
AUTHOR Marshall, T. C.
PUBLISHED 1974
Showing: 1 to 10 of 135 matches for "handheld rock drills"  Page   1   2   3   4   5   6   7   8   9  next

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