SLOPE STABILITY MONITORING
Canary Systems and slope stability monitoring
Canary Systems told IM that it has a comprehensive portfolio for slope stability monitoring , Canary Systems offers instrumentation , hardware , software , support , as well as additional professional services . “ These solutions for slope monitoring can therefore ensure better risk management and evaluation of slope movements by providing the necessary tools that are capable of early movement detection and monitoring of the changing ground conditions which may lead to instabilities .”
The powerful charting and analytics tools within Canary Systems ’ browser-based visualisation platform , MLWeb ® , offer the ability to correlate multiple sets of data and any derived results . These can include prism inverse velocity , piezometer pressure , radar displacement , or other calculations under one analysis , and reviewed regularly via scheduled reports . These generated reports enable the site to comply with and meet their ICMM reporting guidelines . This not only ensures compliance but also empowers them to proactively monitor and improve their sustainability initiatives . Furthermore , users can get a true view of surface and subsurface data from any angle and create spatial filters to query all underlying sensor and point cloud data with the 3D viewing engine . Real-time alerts can be configured for immediate action in the event of movements that could potentially lead to mine slope failure . An existing mine using Canary Systems ’ monitoring solution is located in the Pacific region which sits on top of a stratovolcano on the island , leading to extensive thermal activity in and around the mine . Hundreds of instruments are being monitored including piezometers , inclinometers , prisms , in addition to weather stations and flow meters . The site utilises MLWeb to identify unstable areas with the integration of multiple data sources including InSAR scan data , ground-based radars , and DTS ( distributed temperature survey ) data . The site has also implemented TARP level alerts and notifications that can be triggered based on frequency and severity of slope movement and conditional changes such as pore pressure . MLWeb provides an intuitive interface allowing for translating raw data in near real-time to meaningful information through which mine staff are able to focus on safety rather than data management .
Through the seamless integration of varying data sources including geotechnical instrumentation , radar systems , spatial and in-situ datasets , Canary Systems provides a unique , coherent overview of integrated data visualisation and allows for analysis of open-pit mine slope stability .
provides flexibility and empowers clients to customise its products to better fit their specific requirements and to align with their monitoring strategies . “ The continuous advancements in radar technology within the Movement and Surveying Radar range allows for precise and dependable data collection within these tailored monitoring programs .”
The company adds : “ Our holistic approach extends beyond technological offerings . We provide an integrated global support network encompassing operational , training , and geotechnical assistance . Our highly experienced team is dedicated to facilitating the seamless implementation and ongoing maintenance of slope stability monitoring programs . By leveraging our comprehensive support , clients can maximise the benefits derived from our integrated solution . Through this comprehensive solution , the safety of the mine is always prioritised , while clients gain a profound understanding of slope behaviour and are empowered to make informed decisions for enhanced productivity .”
Maptek on Improving leach pad safety
While the slope stability monitoring market is dominated by pit walls and tailings dam walls – there are also other applications in mining . A monitoring technique using Maptek™ Sentry has been safely controlling the shape of a secondary leach pad to avoid landslides at a copper mine in South America . Multiple safety and operational factors must be considered when designing and managing secondary leach pads . Continuous , remote monitoring avoids material overloading and highlights hazards such as blind spots .
Maptek Sentry provides operators with a safe and autonomous way to build and monitor leach pads , avoiding landslides after particulate material has settled . It is a monitoring technique for performing geometric control over a secondary leach pad construction and also allows analysis and characterisation of volume and tonnage to verify design parameters . Dimensions such as width , length , height and slope angle must be precise to preserve the shape of the deposited crushed material and avoid landslides after the material settles . Accurate values are needed to determine cubic metres of fill and tonnage of the pile . Existing volume estimates are frequently inaccurate depending on how they are calculated .
Continuous monitoring of the construction of leach pad cones allows unloading of material to create ' low ' and ' high ' zones that respect the design parameters . Real-time geometric control of the pad construction ensures the filling cones are not overloaded , providing greater operational safety . The cumulative volume of material is measured topographically on a weekly basis ,
ABSOLUTE MATERIAL CONTROL
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AUGUST 2023 | International Mining 27