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7th International
Conference and Exhibition
on Mass Mining
Development of the Ore Handling System
at the Grasberg Block Cave (GBC) Mine,
Indonesia
FREEPORT IN INDONESIA Grasberg Open Pit 4,285 m
Big Gossan
Kucing
Liar
DOZ-ESZ
DMLZ
Ertsberg East Skarn
System
AB Tunnels
Grasberg Block Cave
GRASBERG BLOCK CAVE MINE
Reserve 1,019 Mt @ 0.98% Cu,
0.77 g/t Au
2,404 Draw Points
Mining Rate: 160 Ktpd
Primary Mine Access via 6-km AB
Tunnels
Service Shaft for men and
materials
Rail Haulage to a 3 Crushers
Complex
GBC ORE HANDLING SYSTEM
Animation courtesy of PTFI
GBC ORE HANDLING SYSTEM
GBC ORE HANDLING SYSTEM
2730L CRUSHER LEVEL
2,000t COARSE OREBIN
LOADING CHUTE
APRON FEEDER ROCK BREAKER
GYRATORY CRUSHER
STOCK PILE
2760L HAULAGE LEVEL 20 m3 DUMP RAIL CARS 601 UNLOADING STATION
2700L CONVEYOR LEVEL
601 CONVEYOR
612 TRANSFER 601 TRANSFER
613 TRANSFER
GRS 70 CONVEYOR
GRS 71 CONVEYOR
BIN
2730L CRUSHER LEVEL
2,000t COARSE OREBIN
LOADING CHUTE
APRON FEEDER ROCK BREAKER
GYRATORY CRUSHER
STOCK PILE
2760L HAULAGE LEVEL 20 m3 DUMP RAIL CARS 601 UNLOADING STATION
2700L CONVEYOR LEVEL
601 CONVEYOR
612 TRANSFER 601 TRANSFER
613 TRANSFER
GRS 70 CONVEYOR
GRS 71 CONVEYOR
BIN
GBC ORE HANDLING SYSTEM
2010 - 2014
HAULAGE LEVEL DEVELOPMENT 2015 2016 Initial Production 2017
N
601 Unloading
Station
150 m
Rail Loop
Started in 2010
Long single heading
Horseshoe Profile
Ground Support
HAULAGE LEVEL DEVELOPMENT
601 Unloading
Station
150 m
N
602 Unloading
Station
603 Unloading
Station
Peak Production 2023
HAULAGE LEVEL DEVELOPMENT
GBC ORE HANDLING SYSTEM
2730L CRUSHER LEVEL
2,000t COARSE OREBIN
LOADING CHUTE
APRON FEEDER ROCK BREAKER
GYRATORY CRUSHER
STOCK PILE
2760L HAULAGE LEVEL 20 m3 DUMP RAIL CARS 601 UNLOADING STATION
2700L CONVEYOR LEVEL
601 CONVEYOR
612 TRANSFER 601 TRANSFER
613 TRANSFER
GRS 70 CONVEYOR
GRS 71 CONVEYOR
BIN
CRUSHER LEVEL DEVELOPMENT Initial Production (2017)
GBC Ramp
150 m
601 Crusher
Package
N
Main Chamber
Crusher
45 m
601 CRUSHER PACKAGE Coarse
Ore Bin
N
CRUSHER LEVEL DEVELOPMENT Peak Production (2023)
GBC Ramp
150 m
601 Crusher
Package
602 Crusher
Package 603 Crusher
Package
N
CRUSHER LEVEL DEVELOPMENT
GBC ORE HANDLING SYSTEM
2730L CRUSHER LEVEL
2,000t COARSE OREBIN
LOADING CHUTE
APRON FEEDER ROCK BREAKER
GYRATORY CRUSHER
STOCK PILE
2760L HAULAGE LEVEL 20 m3 DUMP RAIL CARS 601 UNLOADING STATION
2700L CONVEYOR LEVEL
601 CONVEYOR
612 TRANSFER 601 TRANSFER
613 TRANSFER
GRS 70 CONVEYOR
GRS 71 CONVEYOR
BIN
2010 - 2014 2015
CONVEYOR LEVEL DEVELOPMENT
150 m
2016 Initial Production 2017 601 Crusher
Package
N
602 Transfer
603 Transfer
615 Transfer
611 Transfer
612
Transfer
613
Transfer
GVD 8 Connection
Conveyor Drift Profile 150 m
CONVEYOR LEVEL DEVELOPMENT N 601 Crusher
Package
N
602 Transfer
603 Transfer
615 Transfer
611 Transfer
612
Transfer
613
Transfer 150 m
Peak Production 2023
616
Transfer
617
Transfer
SUMMARY
88 km To initial production in 2017
GBC EXCAVATION
42%
58% OTHER MINE LEVEL
ORE HANDLING LEVEL
GBC OREHANDLING
EXCAVATION
36% 64%
TO BE EXCAVATED
COMPLETED
Multiple Resources
Critical Path
THANK YOU
