Open‑Pit Slope & Wall Stability Monitoring
Open-pit slopes are dynamic systems. Progressive deformation, stress redistribution, rainfall events, and blasting can alter wall behaviour long before visible cracking or failure occurs.
Kurloo delivers defensible monitoring through continuous 3D GNSS displacement data, helping geotechnical teams detect subtle slope acceleration early, strengthen TARPs, and complement radar within a layered monitoring framework.
The Kurloo GNSS system establishes an absolute geodetic reference frame for monitoring, independent of local ground deformation that can compromise relative systems.
The Operational Reality of Modern Open Pits
Deeper pits and steeper walls increase both consequence and scrutiny. While ground-based radar provides real-time line-of-sight velocity data, it may not capture deformation beyond the crest or within back-crack zones.
Many slope failures begin with small precursor movements — millimetre-scale displacement, gradual acceleration, or crest rotation — that develop over weeks or months.
Monitoring systems must therefore:
- Detect early deformation trends
- Support risk-based TARPs
- Integrate with radar and in-situ instrumentation
- Provide traceable evidence for Ground Control Management Plans
Continuous 3D GNSS monitoring strengthens this layered approach. That helps reduce reliance on a single monitoring method for highwall stability.
How Kurloo Is Applied in Open Pits
Kurloo adds an absolute 3D displacement layer at critical slope locations:
- Crest and berm points — tracking settlement, rotation, and lateral movement
- Back-crack and tension zones — capturing deformation outside radar visibility
- Flanks and haul road shoulders — monitoring movement extending into operational areas
- Reference monuments — providing stable control for radar and survey interpretation
Because all measurements are tied to a consistent geodetic frame, Kurloo also acts as ground truth for radar, InSAR, prism networks, and survey control.
Key Benefits of Kurloo for Open-Pit Slope & Wall Stability Monitoring
Detect Subtle Slope Acceleration Early
Kurloo identifies millimetre-scale lateral and vertical displacement in pit walls and benches, often detecting precursor movement weeks or months before visible cracking or failure develops.
Capture True 3D Movement Vectors
Unlike line-of-sight radar, Kurloo measures full horizontal and vertical displacement vectors, supporting clearer interpretation of slope mechanisms and validation of radar assumptions.
Strengthen TARPs with Objective Trend Data
Consistent time-series displacement and rate-of-change metrics provide defensible inputs for inspection triggers, exclusion zones, and production adjustments.
Deploy Safely Across Evolving Pit Geometries
Autonomous, relocatable units enable scalable monitoring as pit walls advance, without exposing personnel to unstable slopes or interrupting operations.
Detecting Instability Before It Becomes Failure
Many pit wall failures are preceded by measurable deformation, including crest subsidence, outward tilt, accelerating lateral displacement, or step-change movement following rainfall or blasting.
Continuous 3D monitoring enables early identification of:
- Acceleration along structural planes
- Crest rotation and settlement
- Differential movement between slope segments
- Persistent divergence from stable reference points
Early detection strengthens risk management and supports proactive ground control decisions.
Practical Considerations & Monitoring Context
Kurloo complements — not replaces — radar, prisms, and in-situ instrumentation. Its role is to provide absolute, drift-free 3D displacement that strengthens interpretation across the monitoring ecosystem.
Key considerations include:
- Typical ~2 km network range for sub-5 mm performance
- Clear sky visibility at crest or bench locations
- Appropriate network density in high-risk zones
- Safe installation access in active pit environment
When integrated with radar and other systems, Kurloo adds a stable geodetic reference layer to layered slope monitoring programs.
Case Study: Proven in Australian Open Pit Environments
Kurloo has been deployed on active open pit operations to monitor crest deformation and flank movement, complementing radar systems and supporting Ground Control Management Plans. Continuous, expert-validated displacement records have strengthened slope assurance without disrupting production.
Regulatory Pressure and Operational Risk
How Kurloo helped a tailings operator meet tightening GISTM-driven regulations by delivering rapid, defensible embankment monitoring — enabling early deformation detection and audit-ready compliance data under compressed timeframes.
Discuss Your Slope Monitoring Strategy
Design a defensible 3D GNSS monitoring network that complements your radar systems and strengthens early detection across your open pit.
Talk to our team about your slope stability monitoring requirements.