Ok Tedi’s ArcSAR Neo radar deployment: slope risk lessons for geotechnical teams
Reviewed by Joe Ashwell
First reported on International Mining – News
30 Second Briefing
Ok Tedi Mining has commissioned two ArcSAR Neo slope stability monitoring radar systems from IDS GeoRadar at its Papua New Guinea copper-gold operation, becoming the first mine globally to deploy the new platform. The ArcSAR Neo units provide continuous, high-resolution displacement monitoring of pit walls, using arc-scanning radar and advanced processing to detect millimetre-scale movements in real time. For geotechnical teams, the dual-system deployment increases spatial coverage and redundancy for critical slope risk management in a high-rainfall, structurally complex open pit.
Technical Brief
- ArcSAR Neo units from IDS GeoRadar are configured as slope stability radars dedicated to wall monitoring.
- Radar-based monitoring reduces reliance on physical prism networks, limiting personnel exposure on hazardous benches.
- Integration with mine control systems allows alarms to feed directly into established safety and evacuation protocols.
- IDS GeoRadar’s ArcSAR family is already used at multiple global open pits; Neo extends that platform lineage.
Our Take
The separate launch piece on ArcSAR Neo from IDS GeoRadar and Hexagon in our database frames this as a true 3D, 360° slope monitoring platform, so Ok Tedi Mining is effectively acting as an early operational proving ground for the technology at a copper–gold operation.
Among the 600 copper- and gold-linked items in our coverage, relatively few are tagged to ‘Product’ and ‘Safety’ together, signalling that Ok Tedi’s deployment sits in a smaller subset where technology adoption is explicitly tied to geotechnical risk management rather than just productivity.
With copper prices sitting near record settlements in recent market coverage, high-value copper–gold mines like Ok Tedi have stronger economic justification for premium slope monitoring systems such as ArcSAR Neo, as any reduction in geotechnical downtime or failure risk has outsized revenue protection value.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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