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Prepared by
Richard MusselmanOperations Support EngineerRound Mountain Gold Corporation
Using Trimble 4D Control for High Wall Monitoring at Round Mountain Gold Corporation
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Round Mountain, NV, USA
Kettle River – BuckhornRepublic, WA, USA
Dvoinoye, RussiaKupol, RussiaFort Knox
Fairbanks, AK, USA
Tasiast, Mauritania
Lobo-Marte, ChileLa Coipa, Chile
Maricunga, Chile
Fruta del Norte, Ecuador
Chirano, Ghana
Paracatu, Brazil
KCorporate Offices
Toronto, ON, Canada
Kinross Gold
3
Round Mountain Gold Corporation
• Joint Venture with Barrick Gold Corporation (50:50)
• Conventional Open Pit Mining
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Purpose of Slope Monitoring
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NE Highwall–T1/T2 FailureLooking Northeast
Looking Northeast
“Slip Face”
Round MtnPrior to Pit Expansion
Mining
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South Ramp Failure
South Haul Road
Back Break Structure
Alluvial Failure
Rock Failure
Toe HeaveLooking Southeast
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Damage to South Haul Road
Looking Southeast
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Solution
• 2 - Trimble S8 1” Robotic, DR HP, Long Range Instruments• 6 – Trimble NetR9 Ti-1 Reference Stations• 1 –Trimble 4D Control Software v3.0 with various licenses (Upgraded to
v4.1 in March 2013)
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Monitoring Strategy
Control Application ReportsWeb Based ReportsReport Generator ApplicationThreshold Alerts
Customized Accessto Database Tables
PostProcessing
WirelessMine
Network
TrimbleSQL ServerDatabase
TrimbleData
StorageServer
Trimble 4D Control Server•Post Processing•RTK•Terrestrial
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Mobile Slope Monitoring Station
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Monitoring Strategy–Field Configuration
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Trimble 4D Control Software
Terrestrial Displacement Chart
GNSS Scatter Plot
13http://rmo-sql-02/t3dweb
Web Interface Functionality
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Before After
Average Amplitude 0.70 ft 0.13 ft
Measurements/day/prism 4 11
Historical Data Integration
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Why is slope monitoring valuable?
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3 electric shovels14 haul trucks
Protect Property?
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Maintain Production?
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Putting People First
Rigorous Financial Discipline High Performance Culture
Outstanding Corporate Responsibility