Tag Archives: Sentry

Maptek scanners, software boosts efficiency and safety at Kirkland Lake’s Fosterville mine

Maptek’s underground laser scanners and software have been helping geology and geotechnical engineering teams save time and monitor safety at Kirkland Lake Gold’s Fosterville mine in Victoria, Australia.

At the underground mine, the geology team use two SR3 laser scanners and the PointStudio software for structural mapping and identifying structures.

“They primarily focus on scanning the ore drive development headings and then analyse the data and do the mapping in PointStudio,” Fosterville Project Rock Mechanics Engineer, Corey McKenzie, says.

The Maptek SR3 is a dedicated underground laser scanner, with a scan window of 130° vertically and 360° horizontally for capturing roofs and walls in tunnels and underground drives.

With fast accurate sensing and tailored mount accessories, the SR3 can be operated remotely from any web-enabled device and combines well with modelling software PointStudio for improving overall productivity and safety underground, Maptek says.

“PointStudio has a lot of neat tools,” McKenzie says. “Smart Query is useful for extracting joint set data, and the Distance for Objects feature can be used for fibrecrete thickness analysis.”

The geotechnical team uses ZEB scanners for convergence checks and it is, Maptek says, excited about the potential of Maptek workflows to streamline and save time in convergence monitoring.

The Workflow Editor incorporates software menu items, command line executables and scripting capabilities with Maptek Workbench tools and custom components to automate processes.

McKenzie says cloud-to-cloud comparison using laser scan data in PointStudio is all about safety.

“We want to know if the walls or backs are moving,” McKenzie said. “If we notice a spot that is starting to deform, we scan it more regularly so we’ve got that constant update of data and can track how it’s moving and the rate of deformation. We can then make decisions about rehabilitation. And we also need to know when our ground support capacity is going to be consumed.”

When PointStudio was introduced at the site this year, McKenzie found it relatively easy to learn, appreciating the visual layout of the options along the top ribbon, Maptek said.

The Fosterville geotechnical team is looking to expand its usage of PointStudio and expects the new scanline mapping tool in the latest version to help rockmass classification, according to the company.

“We’re just starting to explore the geotech/rock mechanics aspects,” McKenzie said. “Maptek is always willing to answer questions.”

The site also recently completed a trial of Maptek monitoring solution, Sentry.

“Now that we’ve tested Sentry and know its capabilities, we’ll be confident down the track if there’s an area that we want to monitor more closely,” McKenzie concluded.

Maptek equips Sentry stability monitoring system for the cold

Software, hardware and services provider, Maptek, has released a cold climate model of its award-winning mobile Sentry system for stability monitoring, as it looks to expand its market reach even further.

Sentry is a mobile remote monitoring system that uses laser scanning to continuously measure ground movement with extremely fine spatial resolution and accuracy, according to Maptek. Housed in a self-contained unit with autonomous power and communications capabilities, Sentry relies on software to monitor, analyse and report in real-time.

The newcomer to the Maptek technology portfolio answers the imperative for continuous, reliable measurements of ground movement no matter the environment, Maptek said.

Maptek Product Manager, James Howarth, said: “Risk management remains a priority. If anything, the reliable operation of technical equipment is even more critical in extreme conditions.

“Climate factors play an important role in the execution of any mining project. Extremely low temperature conditions require considerable planning and logistics, especially from an operator safety perspective.”

The Sentry system can operate continuously from -20°C to +50°C, with operation for a limited time in temperatures below -20°C. It requires an XR3 cold climate laser scanner, which has been redesigned and tested to operate at these low temperatures, Maptek said. A removable neoprene jacket for the scanner provides extra protection against wind chill.

Maptek redesigned all the major components in the standard temperature Sentry mobile system, with significant changes to achieve the required cold climate specifications, it said.

The company said: “In deep cold weather, the charge acceptance of batteries is very low. Keeping batteries warm maximises power output and ability to accept a charge. The battery pack and housing in the Sentry system has been redesigned and insulated to keep the unit at a stable operating temperature. Other built-ins such as generator, hydraulics and electrical systems were adapted to maintain energy efficient, cost-effective operation.”

Howarth added: “What hasn’t changed is the proven capability to monitor multiple areas. Customers enthuse on how easy Sentry is to set up and use. Data is displayed intuitively, ready for immediate application in risk management programs.”

The 3D point cloud data that has been collected while monitoring can be used for geotechnical analysis and other applications. The Maptek laser scanner can also be redeployed from the monitoring for routine survey tasks.