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Mining & Exploration Geology > Mining Methods > Flashcards

Mining Methods Flashcards

(58 cards)

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1
Q

are horizontal tunnels that are dug beneath the ore body

A

Haulage Tunnel

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2
Q

is an underground hard rock mining method that involves undermining beneath the ore body, allowing it to progressively collapse under its own weight

A

Block Caving

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3
Q

large rock tunnels directly below the undercut

A

Drawbells

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4
Q

an upward sloping tunnel in Block Caving

A

Raises

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5
Q

Block Caving

deposit thickness

depth

A

> 100ft or 30m

> 600m and <1200m

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6
Q

Equipments in Block Caving

A

Hydraulic Powered Percussion Jumbo

ANFO

LHD Unit

Converyor Belt

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7
Q

Block Caving can be used to extract (4)

A

Lamproite
Asbestos
Diamong-bearing kimberlite
Low grade Cu, Mo, Fe ore

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8
Q

Mining that uses Block Caving

A

Padcal Mine - Philex

195

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9
Q

Recovery Rate of Block Caving

A

90-125%

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10
Q

Sublevel Stoping are often referred as

A

Long Hole Stoping

Blast Hole Stoping

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11
Q

Sublevel Stoping

a. Deposit thickness
b. Dip
c. Depth

A

6-30m
>45-50 but preferrably 60-90 deg
<1.2km max 2.4

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12
Q

drilling pattern holes are drilled fanning out from the roof of the sublevel, applied to stoping in narrow stopes

A

Fan Drilling Pattern

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13
Q

drilling pattern where the holes are drilled all the way around the working level. Used in massive deposits as it allows for the holes to reach the sides of the deposits

A

Ring Drilling Pattern

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14
Q

drilling vertical holes in parallel lines. Preferable into narrow bodies

A

Parallel Drilling Pattern

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15
Q

Mine that practice Sublevel Stoping

A

Oceana Didipio Mine
Nagtipunan, Quirino
Porphyry Cu

Lepanto Consolidated Mining Company
Mankayan, benguet
Au, Cu, Ag

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16
Q

Mining methods practiced in

a. Oceana
b. Lepanto

A

a. Truck and Shovel
Loader Sub-level Stoping
Paste Backfill

b. Sub-level Stoping
Sub-level Caving

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17
Q

usually undertaken when mining the orebody througn an open pit is no longer economically viable

A

Sublevel Caving

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18
Q

configuration method in stopes where the ore is detonated by drilling a fan or parallel

A

Sublevel Stoping

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19
Q

used to mine large ore bodies with steep dip, massive and continuation at depth

A

Sublevel Caving

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20
Q

Equipments in Sublevel method

A

Drill Jumbo
hammer drill
LHD

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21
Q

Mines that practice Sublevel Caving

A

Kiruna Mine
Norbotten County, Lapland
4km long, 80km thick, 2km deep
Iron Ore

largest and most modern underground Fe ore mine in the world

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22
Q

a method of drilling which uses dual wall drill rods that consist of an outer drill rod with an inner tube that allow the drill cuttings to be transporter back to the surface

A

Reverse Circulation Drilling

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23
Q

Reverse Circulation Drilling

a. diameter
b. penetration

A

a. 24-50 in

b. 1km

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24
Q

samples from rc drilling are composed of broken up pieces of rock called

25
size of chips in rc drilling
around 10mm
26
involves vertically drilling large-diameter holes into the orebody from the top, then blasting horizontal slices of the orebody into an undercut
VCR method
27
VCR Deposit a. dip b. width
a. >45 deg | b. <12-15m
28
Example of Mine that uses VCR
Subury Basin | Ni-Cu
29
Where was the VCR method first used
Levack Mine | Subury Basin Northern Range 1974
30
RC Holes Sampling and the sample mass
a. Bulk Sample (20kg) b. Calico Bag Sample (2-3kg) c. Representative Sample (1kg) d. Rock Chips
31
is used for determining the composition of the drill material
XRF Analysis
32
Companies that uses RC Drilling
Agata Mining Ventures Inc. -Agusan Del Norte TVI Resources Development Inc. -Mindanao and Panay Carmen Copper Corp. -Toledo, Cebu
33
is a soil penetration technique that strongly reduces friction on the drill string and drill but
Sonic Drilling
34
Sonic Drilling Procedure
Core barrel Advancement Over Casing Core Material Repeat Process
35
Mining Company that uses Sonic Drilling
Richards Bay Minerals | -Kwazulu-Natal, South Africa
36
method of drilling holes done with a helical screw driven rotationally into the ground
Auger Drilling
37
other terms for helical screw
Flighting
38
is commonly used to hydrate dry holes to improve penetration and help lift cuttings
Water
39
Auger Drilling a. Depth limitation b. Rotation Speed c. Length of rods
20m 30rpm 1,5m or 3m
40
Types of Auger Drill
Hollow Stem Auger Drilling Solid Flight or Bucket Augers
41
Deposit Suitability of Auger Drilling
Coal
42
Mining Company that uses Auger Drilling
Semirara Power and Mining Corp.
43
a method in which rock is not hammered by the drill unlike for percussive drilling
Rotary Drilling using Tricone Bit
44
Rotary Drilling a. Rotation Rate b. Air Velocity
50 to 90 rpm | 30 to 45m/s
45
Two Important Parameters in Rotary Drilling
Feed Pressure | Rotational Feed
46
Mining Company that uses Rotary Drilling
Exploration Drilling Corp.
47
process of excavating any near-surface ore deposit by means of an excavation or cut made at the surface using horizontal benches
Open Pit Mining
48
benches that are 30 to hundreds of meters that is in process of being excavated
Working benches
49
are remnants of working benches retained for pit slope stability
Inactive Benches
50
are used to prevent cascading materials from interfering safety of active benches
Catch Benches
51
are located at the crest of benches to prevent equipment from backing over
Safety Bench or Windrows
52
are used to increased effectiveness of catch benches at containing bench scale rockfalls
Catch berm
53
provide route for haulage of ore and overburden from active excavation area to the pit rim and beyond
Haul Road
54
produces the largest material in open pit mining and does not generate revenue
Overburden Disposal
55
Two types of Overburden Disposal
Paddock Dumping or Bottom Up | End Dumping to top down
56
pushbacks or cut backs divided into conventional and sequential
Pit Expansion
57
world's oldest, largest, and deepest open pit mine
Bingham Canyon Mine discovered in 1848 opened in 1906 Salt Lake, City, Utah, US Cu, Au, Ag, Mo
58
Open pit mines in PH
Panian Open Pit -Semirara Island, Caluya, Antique Kingking Mines Corp -Pantukan, Davao del Norte Carmen Copper Corp. -Toledo, Cebu Sagittarius Mines Inc. -Tampakan, South Cotabato TVI Resouce Development Phil Inc. -Zamboanga del Norte

Mining & Exploration Geology (4 decks)

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