a civil engineers insight into the quarrying industry and how a quarry operates

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Hard Rock Quarry Technical Session – What Happens at Quarry

Andrew’s insightHow engineering has improved the industry 1990 - today

Octo

ber 2

015

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How does this happens ?

How this presentation can help you

with your role at

TMR

Some tips and tricks to look

out for

Purp

ose

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Example of Quarry Cost Distribution

DrillingBlastingLoadingHaulingCrushing

Finan

cial S

ide

4

Rock

Type

s

Lithological classifications, three groups of rocks

Igneous rocksSedimentary rocksMetamorphic rocks

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Rock

Type

s

Image Source : www.geology.com

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Key

Reso

urce

s Identification of Key ResourcesQuarry Deposits are identified via Key

Resources Area i.e Winton is KRA No. 99

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Key

Reso

urce

s

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Quar

ry P

lann

ing

Why is Quarry Development Important ?

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Quar

ry P

lann

ing

Why is Quarry Development Important ?

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Quar

ry P

lann

ing

Why is Quarry Development Important ?

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1st S

tage

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Drill & Blast ? https://youtube/akSmI2FeZEo

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2nd

Stag

e of

Qua

rryin

gLoad & Haul ?

https://youtube/R0VvJMB4tYE

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3rd S

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Crushing & Screening ?Primary crushing phase Secondary crushing phaseTertiary crushing phaseScreening and stockpiling Special screening and washing aggregates

https://youtube/D7UklCrjlME

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3rd S

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Primary Crushing?

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3rd S

tage

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Secondary & Tertiary Crushing?

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3rd S

tage

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Crushing and screening circuit ?

What does water do to crushing and screening process ?

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3rd S

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3rd S

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Example of plant for producing asphalt aggregates

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3rd S

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How do quarries produce sealing aggregates?Generally achieved by rescreening 20mm and

10mm concrete aggregates already producedThese materials are re-feed into a special

screening and wash circuitSome cases shaping crushers are used like VSI

crushers

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3rd S

tage

of Q

uarry

ing

Mobile plants are common in Central West region?

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3rd S

tage

of Q

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How do quarries produce sealing aggregates?

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Ques

tions

thank you for your time