Deployment of GNSS Spatial Monitoring on Tailings Storage Facilities

ABSTRACT

The monitoring of movements of tailings storage facilities structures such as berms or dams is routinely conducted with in-ground instruments or surveying. In-ground instruments such as in-place inclinometer and multi-point borehole extensometers have the advantage of providing measurements from specified depths with frequent measurements, but they offer limited spatial coverage. Surveying provides spatial coverage limited only by the number of targets deployed, but measurements are not usually performed in real-time and are limited by harsh weather and personnel availability. Novel all-in-one global navigation satellite system (GNSS) receivers are shown to provide accurate and flexible monitoring for TSFs in Canada. We will show that they can be used to provide berm stability measurements during loading operations, with repeatability of the order of 2 to 4 mm. We will also show that they can be used to track long-term settlement of a tailings. Lessons will be shared regarding deployment, installation methods, power management in harsh weather, actual noise levels and understanding of long-term trends. GNSS measurements can enhance existing and new monitoring plans, providing novel insights into the global health of the structures.

SPEAKER BIO

Brenden is a Business Development Managers with over eight years of experience specializing in geotechnical instrumentation and monitoring solutions. Currently with Geo-Instruments Ltd, he leads strategic growth across Western Canada, focusing on mining and infrastructure projects that require robust data acquisition, ground deformation monitoring, remote telemetry systems. With a career rooted in both technical understanding and client-centric sales Brenden has worked closely with engineering consultants, mining operators, and construction teams to provide tailored solutions for challenging environments-from deep excavation sites to remote tailings dams.

SPONSOR

This month's event is sponsored by Geo Instruments. GEO-Instruments provides automated solutions for monitoring the safety and stability of buildings, excavations, bridges, railways, roads, tunnels, dams, embankments, and slopes. We help clients manage risk by installing advanced monitoring systems and automating the collection, processing, and delivery of alarms, data, and reports.

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Host or Publisher CIM Calgary Branch