Drilling and Blasting Flashcards

1
Q

Preferred for all methods of forming a directional hole in
rock

A

rock penetration

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2
Q

method of rock penetration that utilizes mechanical energy to break rocks

A

mechanical attack

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3
Q

method of rock penetration by disintegration of rock by fluid injection and commonly used for placer deposits

A

fluid attack

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3
Q

method of rock penetration that penetrates rock by spalling

A

thermal attack

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4
Q

method of rock penetration that is attractive as an accessory rather than a primary means of penetration

A

chemical attack

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5
Q

rock penetration method that includes electrical, light, and energy and are experimental

A

other methods

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5
Q

method of rock penetration that is referred to as vibratory drilling

A

sonic attack

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6
Q

Involves drilling closely spaced
holes within the deposit to
increase the confidence in
resource estimation. It helps to
determine the distribution and
continuity of mineralization

A

infill drilling

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6
Q

Utilizes diamond core drilling to
obtain cylindrical core samples of
the rock. Core samples provide
detailed geological information,
including the mineral composition
and structure

A

core drilling

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6
Q

Involves drilling shallow holes to
identify surface mineralization
and assess the potential of an
area

A

prospecting drilling

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7
Q

A faster and cost-effective method that
uses compressed air to
collect samples during
drilling

A

reverse circulation drilling

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8
Q

Assesses the stability and
rock characteristics in
the deposit area. This
information is crucial for
mine design and
planning

A

geotechnical drilling

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9
Q

energy source of a drilling machine

A

drill

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10
Q

energy transmitter part of a drill

A

rod

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11
Q

energy applicator part of a drill

A

bit

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12
Q

part of drill that controls dust, cools the bit, and cleans the hole

13
Q

Impacts the rock like a
hammer-like blow

A

percussion drilling

14
Q

Penetrates by plowing action

A

rotary drag bit drilling

15
Q

This uses a rotary drill machine
rod and drilling fluids in
conjunction with a swivel-type
double-tube core barrel

A

conventional drilling system

15
Q

Form of drill rig is the same as drag-bits, employing the
same forces to achieve penetration

A

rotary roller bit drilling

16
Q

Hybrid form of drilling, combining independent
percussive and rotational actions

A

rotary percussion drilling

17
Q

This is modified system over conventional drilling where it also uses a swivel-type double-tube core barrel where the inner tube containing the core can be hoisted through the drill rods while the outer tube and rods remain in the hole

A

wireline drilling system

18
Q

provides a means of hoisting and
lowering of the necessary tools

19
Q

refers to the distance
between the blasthole and
the nearest free face or
excavation boundary

19
refers to the distance between individual blastholes within a blast pattern
spacing
20
s the distance drilled below the floor level to ensure that the full face of rock is removed.
sub drill
20
Also known as blasting initiators, these are small explosive devices that are attached to the detonators to initiate the explosion of the main explosive charge
basting caps
21
Devices used to initiate the explosion of explosives.
detonators
22
A device used to amplify or enhance the energy of the initiating charge. These are often used when a stronger initiation is required to ensure reliable detonation of the main explosive charge.
booster
23
A flexible plastic explosive cord that combines a core of high-energy explosive material with a protective outer covering
cordtex
23
characterized by their rapid and complete reaction, producing a supersonic shock wave.
high explosives
24
have a slower rate of reaction and typically burn rather than detonate. They are often used as propellants or in fireworks.
low explosives
24
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