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Hacettepe University
HÜSEYİN
MERT
20724213
CONTACT ADRESS : mangler-1903@hotmail.com
TYPES OF DRILLING MACHINES
USED IN TUNNELING
OUTLINE
INTRODUCTION
DRILLING
TYPES OF DRILL MACHINES
RIG PRODUCTIVITY AND AUTOMATION
CONCLUSION
What’s Drilling?
Drilling is the operation of producing circular
hole in the work-piece by using a rotating cutter
called DRILL
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Drilling Machines
The machine used for drilling is
called drilling machine
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INTRODUCTION
Underground Drilling
Change operation System
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‘Swedish Method’
1970’s
And nowadays
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Types of Drilling Machines
NOT ALL THE TUNNELS ARE
SAME
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JACK LEGGED
Pneumatic operation
Known as ‘jack hammer’
Works compressive air
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Single Boom jumbo
Cross sections up to 20m²
used small project
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Twin Boom Jumbo
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Twin Boom Jumbo
Cross section between 45 to 180m²
Accurate and fast drilling and moderate scale
High productivity
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.
UTB SERIES
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UTB Series
360° boom rollover
Semi-automated
Positioning
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SPEED
IS EVERYTHING
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Three Boom Jumbo
Cross sections up to 180m²
Longivity
High frequency
Lock-to-target
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PRODUCTIVITY
Ground condition
Rockdrill output
Drilling comsumable
Operator skill
Maintenance practice
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AUTOMATION Computer control system
Used laser effectively
Measure While Drill (MWD)
Mine Map Navigation (MMN)
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ELEMINATED
NAVIGATION
ERROR
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How to Make Boom Selection?
Use for what,where?
Cross section area of boom
Boom lenght and skill
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IN CONCLUSION
We must pay attention for machine selection as,
we and
is valuable from others.
MONEY TIME
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REFERENCES
• Face Drilling, 2nd edition. Atlas Copco Rock
Drills
• mining.cat.com
• Automation for Quality Drilling, Face Drilling,
Atlas Copco
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