This spring, Aggregates Manager put out the call for entries into our second annual photo contest.

The top winner, Lemon Grove, Calif.-based RCP Block & Brick  is a family-owned company that extracts sand to provide material for the manufacture of its core products – concrete masonry units and retaining wall block. Its reclamation plan was approved in 1991 and began in 1994. By working with the local community, the operator was able to restore the native vegetation and streamed along the new Walker Preserve Trail, which is a segment of the larger San Diego River Trail.

Along the reclaimed slopes of the site, the city of Santee installed a public trail with placards that explain how the river once provided the sand necessary for the concrete blocks many area residents have in their homes and schools. The placards also highlight how the site has been reclaimed using native vegetation. Interestingly, this community education is all taking place on the community’s dime, not the operator’s. Considering that this project took place in California, it underscores that a good partnership can build ties in even the most unlikely of places.

That’s the message I hope operators throughout the United States and Canada take away from this contest. Build trust with your local communities. Take their needs into account when considering future use of your property. Foster an environment where each entity helps the other. That is a future plan worth creating.

For more great ideas, check out our photo gallery below.

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A new Sudbury company hopes to make it easier for mines to use drones and autonomous vehicles underground thanks to 3D mapping technology.

Syed Naeem Ahmed, a physicist who worked in Sudbury’s underground neutrino laboratory for five years, started Clickmox Solutions after his work with that project ended.

“We want to be the go-to place for innovative products and technologies,” he said in his office at the Northern Centre for Advanced Technology.

Automation improves productivity and makes mines safer by not placing workers in risky situations. But the industry still has a long way to go before automated vehicles become commonplace in most mines.

One of the big hurdles is navigation.

Drones typically use the Global Positioning System (GPS) to know where they are and where they’re going.

But GPS, which uses a network of satellites to pinpoint location, isn’t possible in an underground mine.

The solution is to use 3D scanning technology to create digital maps of underground mines.

Autonomous machines can then have those maps uploaded to their memories, and know exactly where they are in the mine. They can then move around without bumping into walls or other objects.

Most 3D mapping solutions, however, can cost more than $250,000 and weigh three kilograms or more.

Through Clickmox, Ahmed and his team have worked to develop a low-cost system that is much lighter, and can be attached to a drone so it knows exactly where it’s going in real-time.

Using off-the-shelf parts, they’ve taken a relatively cheap 2D laser scanner, and have attached it to a small pivoting platform. The motion from the platform adds the third dimension.

Clickmox has also developed an algorithm in-house to make sense of the data the scanner collects and create detailed 3D maps that are accurate up to one centimetre.

The company is still working on patenting the technology, but sees it as a game changer for underground automation.

Ahmed said they could sell individual scanning systems for around $4,000.

The uses for 3D scanning in a mine go beyond navigation. His team has modified a small drone so it can carry a 3D scanner.

The drone can be flown underground, and using the laser scanner can inspect mine drifts – a job that is currently done manually.

Workers inspect and measure mine drifts on a regular basis for safety, to see if any changes have happened over time.

The drone could do the same work more efficiently and with more accuracy, Ahmed said, without risking human lives in the process.

It could instantly compare its latest measurements to past ones. Those changes would be reported to a manager, and the proper precautions could be taken if any inconsistencies are found.

Clickmox has also worked with Glencore on a small robot that can clear boreholes – vertical holes used to transport materials from the surface to the lower levels in a mine.

The robot is equipped with a drill which it uses to break apart rock-clogging boreholes.

Clickmox currently has five employees, but Ahmed has ambitious plans for the company.

He wants to eventually extend into manufacturing, to build the devices it designs.

As an adjunct professor at Laurentian University, an important goal for Ahmed is creating more high-tech jobs and taking in students for placement opportunities.



Clickmox president Syed Naeem Ahmed shows a 3D scanner his company can use to map mines to make it possible for autonomous vehicles to find their way underground., By: Jonathan Migneault, May 2015

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