SLOPE STABILITY MONITORING
“digital mine.” The highly accurate actual terrain
data is used for autonomous vehicle and
machine driving and operation within the pit.
Standard mine surveying deliverables like break-
lines and volume calculations are available as
side effect by using the software products
RiSCANPRO/RiMINING.
“Highwall monitoring including automatic
change detection and alarming is another
important application. The onboard software
tools and modules perform automatic scan data
registration followed by data filtering and surface
comparison processing. RIEGL has developed a
new software module for automatic scan data
analysis and change detection. According to scan
data resolution and detectable critical changes
the data is subsampled into so called voxels.
Based on these voxels, further analysis like
slope-angle, distribution of data within the voxel,
etc is performed.” This allows monitoring and
change detection even within the mm regime.
The attached figure shows on the left side a
critical slope deformation detected 45 minutes
before the slope finally broke down. On the right
side a radial dam deformation caused by water
pressure is visualised. All these analysis
procedures run fully automatically without any
user interaction. The final real time results can be
delivered to any monitoring-system for
autonomous alarming by using the RIEGL data
and software libraries.
Besides the 3D Terrestrial Laser Scanning
Systems, RIEGL offers mobile mapping systems,
laser scanners and fully integrated turnkey
solutions for airborne applications, as well as
LiDAR sensors for unmanned laser scanning, and
the RiCOPTER - RIEGL's high-performance
turnkey solution for professional UAS surveying
missions. “Seamless integration and
compatibility of RIEGL scanners and systems and
the appropriate software packages offers a
comprehensive suite for professional surveying
in mining.”
GroundProbe GMS-Dual at Masbate
Providing what it describes as “total monitoring
flexibility,” GroundProbe’s GMS-Dual (Geotech
Monitoring Station) can monitor using both
prism points – which are paired with physical
prisms installed on the pit wall – and virtual
points – which are virtual prisms that can be
GroundProbe believes the level of risk control required and the tailings dam site’s specific
monitoring needs should correspondingly determine the monitoring solution required
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Geobrugg AG | CH-8590 Romanshorn | www.geobrugg.com
AUGUST 2019 | International Mining 61