gatut indo-german mining symp 13apr11

8/19/2019 Gatut Indo-German Mining Symp 13apr11

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Balikpapan

Samarinda

BontangS A N G A T T A

Tanjung Bara

Bengalon

Sangkulirang

Bontang

00

00

Jakarta

Located in East Kalimantan

Expansion Project to 70 MTPY Coal

Swarga Bara

PT KALTIM PRIMA COAL


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Overbu rden Hand l ing


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Land Clearing


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Topso i l Stockp i l ing & Spreading


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85 to 280 ton Haul Trucks (500 units)

Up to 32m3 Shovels

1 MBCM Material Movement Daily

Dispatch System with GPS

Overbu rden Management


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In Pit Dump Coal Mine


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• Lebar loading point mengacu pada

kombinasi TRUK LIEBHERR T282

dengan SHOVEL LIEBHERR R966

• Lebar LIEBHERR T282 = 8.8 m

• Lebar LIEBHERR R966 = 8.25 m

• Lebar untuk single loading = 37.5 m

•Lebar untuk double side loading = 51 m

Loading Point Design


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Overburden Hauling


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OVERLAND CONVEYOR

Single 13 Km Overland Conveyor from to Port 4,000 tph Capacity


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800 KT Coal Stockpile at the Port


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Coal Stockpile at Port


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Stacker - Reclaimer Capacity – 3500 TPH


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4200 TPH Stacker


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COAL SHIPMENT

2 km Trestle Conveyor

200,000 dwt Ocean-goingships can be accomodated

Loading Rate 4,730 tph


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PT FREEPORT INDONESIA


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Tram

(+3600m)

Surabaya

(+3,700m)


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Ertsberg District Orebodies and Mines

N

Skarn System

Grasberg Pit

Grasberg

Underground

Kucing Liar

ig

Gossan

Dom

ESZ

DOZ

OZ

MLZ

Deep MLZ

eep MLZ

Common Infrastructure

COPPER

GOLD

SILVER


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PTFI Production Plan - 2010

T b T b k G b 1997


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Tambang Terbuka Grasberg - 1997

Grasberg Minelooking North


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CABLE-CAR TRAMWAY

The original access connectingErtsberg (3600m) and the Mill(2800m elev)


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Loading and hauling by shovel & truck

GRASBERG OPEN PIT


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1 2a

3 4 5

6

78

109

11

14

12

13

DRILLINGSAMPLING

EXPLOSIVE

LOADING

BLASTING

LAB.ASSAY2b

FLAGGING

LOADING

HAULING

ORE DUMPING CR6/7

MILL

DISPACTH

CONTROL

RECLAMATION

STACKER LOWERWANAGON

OVERBURDEN

DUMPING OHS-3OVERBURDEN

15 PIT SERVICES

ORE/

OVERBURDEN

MODELING

Grasberg Open Pit Mining Activity


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Stacker at Lower Wanagon OBS

Material deliverable up to 135 ktpd

Stacker reposition & relocation using crawler mobile unit


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Stacker configuration


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Monitoring & Control Technology

Dispatch System

Real-time, effective control of mine fleetallowing quick decision making

Reliable system using GPS satellite and

Terralite XPS transmitter technology

Live Camera

• Real-Time monitoring

• Reliable visual aids

• Accessible world-wide

•

Internet-based6

Geotech Monitor ing

Slope stability radar

Robotic stations & prisms


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SLOPE MONITORING SYSTEM - SMS


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Extensometer at OBS

Extensometer is used to monitor subsurface lateral deformations.


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Global Positioning System (GPS)

Grasberg employs GPS system from Orion Monitoring Company. Single frequency GPS receiver andInteTrak software are used


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Robotic Total Station (RTS)

Robotic Total Station (RTS) is automatization of Total

Station to read prisms target put on the area of interest.

By doing periodic or continuous target reading

displacement of the slope can be identified.


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ROBOTIC TOTAL STATION - PRISMS


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Slope Stability Radar (SSR)

Real-aperture radar (RAR) produced radar images by directing a narrow beam of energy perpendicularly

to the slope. Each spots of area of interest are scanned by rotating the disk in horizontal and verticaldirection.


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SLOPE STABILITY RADAR


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SLOPE STABILITY RADAR DISPLAY


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Block cave mines Open stope w/ paste fill

UNDERGROUND MINES

Grasberg Mine: Transition to Block Caving


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Grasberg Mine: Transition to Block Caving

January 2007 Open Pit

2015 Final Pit (3055m)

Block Cave Reserve (2815m)

Kucing Liar Deposit

(2605m)


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Grasberg B lock Cave Mine Design

GRS-BC Key Facts:

970 Mt @ 1.09% Cu, 0.87 g/t Au

Cutoff grade ca. 0.70% EqCu

23 b lbs copper; 27 mm ozs gold (contained)

2,356 drawpoints El Teniente-Style Layout 700,000 m2 footprint

30m x 20m drawbells

Mine Access via Light Rail (AB Adits)

Gravity Drainage (AB Adits)

Intake/Exhaust Adits

Mining Rate: 160 ktpd

Rail Haulage to a 4-Crusher Complex

Incline conveyor to surface


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DOZ Mine Expansion Infrastructures (completed 2007)

Current Production 80 KTPD after: 2nd Crusher Installation Additional Ventilation

o Intake and Exhaust Aditso Three Mixed Flow Fans

• 3.5m Diameter•

1,600 kW motors

Fan Chamber #1

Big Gossan Mine


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Big Gossan MineOpen stope w/ paste fill

Reserves: 53 M tonnes

2.19% Cu & 1.06 g/t Au

Start production in 2008

7,000 tpd in 2012

Miner Training School

Bi G Mi


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Big Gossan Mine Long Section View

HEAT Road

Mill Area

500m


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GRSBC Terminal

KL Terminal

AB Adits Portals

MLZ Terminal

BGN Terminal

Common Infrastructure Project

Gateway to New Mines 18.6 km long twin-tunnel, 6.8m W x 6.0m H

Conventional hi-speed drill and blast development

Gravity drainage, ventilation and access

Rail system designed forcontainer sized loads


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AB Tunnel Lay Out

i i


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Convergence Monitoring

Convergence monitoring is a good tool for learning about rock behavior and for monitoring the ground reaction asthe cave progresses in the DOZ mine. Even though the system is simple, the data produced is very useful.


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Microseismic & Numerical Modeling

Advance real time monitoring system for PTFI Underground Mines to determine: cave propagation, stress

distribution, and damage prediction. Current UG PTFI mines (DOZ and BG) have implemented thismonitoring

PLAN VIEW


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Microseismic Monitoring System

Magnitude and Energy Index are common parameters that used in the analysis

Seismogenic zone

SECTION VIEW

~30 m

+0.9

+1.4

DD02W/South – 12 September

2007

Vibrating Wire Stress meter


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Vibrating Wire Stress meterand Smart MPBX

Vibrating wire stress meter determines stress change due to mining activities or other issues (i.e. earth

quake, lithology impact, etc) while Smart MPBX (multi point borehole extensometer) to determinedisplacement at different point distance (i.e. displacement in the pillar)

G d A l t


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Ground Accelerometer

Installation of Ground Acceleration Monitoring at Grasberg Area as Part of Regional Seismic Network to

monitor ground motion/stability


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MINERALS PROCESSING

Concentrating Plant

SAG Mill

Flotation Process


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AMAMAPARE PORT

Concentrate dewateringplant

Concentrate shipment

Coal-fired power plant

Cargo dock


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DWP Enclosed Shiploader


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gatut indo-german mining symp 13apr11

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