MTA-AUS 2014

CONEXPO-CON/AGG VIP SHOW GUIDE contains Floor Plans and a complete listing of companies exhibiting at the ConExpo-Con/Agg 2014 trade show in Las Vegas March 3-7, 2014. It also contains 2014 forecasts for the Aggregate, Concrete and Cement industries

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Page 32 of 87

MINING & TECHNOLOGY AUSTRALIA 2014 | ISSUE 8 31 I'd like to start of by asking, can you talk about what defnes excellence in mine haulage operations? What are the critical variables? There are an enormous number of variables to geting it right. I think they categorise in two main areas: one is the mine planning or the technical aspects of geting it right; and the other is the operational aspects, and the things that happen in the feld about producing the right results. With respect to the mine planning part of it – it really starts at the very beginning of the process of actually planning the mine correctly. In road design detail, and to create an efective fow of trafc through the mine; to get the stockpile designs and the waste dump designs created such that there's sufcient width and working area for the machines to operate in; to create, where possible, alternate paths for slow vehicles, such that they don't disrupt the haul cycle; and to have alternatives out there for when operational issues arise. On the operational aspect of it, it is all about consistency; consistency of speed of the vehicles travelling, consistency of payloads, and consistency of what happens at both the loading and dumping cycle of the machinery. Things that follow on from that, again, are how roads are designed, how trafc intersections are set up. All those things are so critical to the efcient haul time. Also, it's about the other vehicles that are on the roads – how do you use water carts? How do you handle picking up spillage? And ultimately, how do you control the overall operation? So it's a multi-factor problem, both technical and operational. Can you discuss Thiess mining operations with the use of open cut truck and shovel operations? Thiess operates all across Australia and Indonesia, but really I'll talk mostly about what happens in Australia, both in hard rock and coal mines. We operate all classes of machinery, basically from the smaller operations of 100 tonne excavators and 100 tonne trucks all the way through to ultra-class power shovels, large hydraulic excavators like the Liebherr 9800, and ultra-class trucks, the Liebherr 282s and Caterpillar 797 dump trucks. In both hard rock mines – in Roper Bar and Prominent Hill in South Australia – as well as coal mines in Queensland and New South Wales being at Lake Vermont, Curra, Burton and Mount Owen. What are your tips for best practice asset maintenance to improve mine haulage processes? Thiess operates essentially a Caterpillar truck feet. The real benefts here with respect to the haul road analysis that can be done, is using the Caterpillar software that actually extracts how the truck is performing throughout the cycle. This efectively creates a feedback loop so that the maintenance guy knows what's happening to the truck during the cycle, and the operations guys can improve the areas which are having a detrimental impact on the truck. The other important tip for the maintenance guys is to make sure that the tyres are right, and just do the simple things well. The tyres are right, the strut pressures are maintained well; that the information being recorded by the trucks is accurate; that the maintenance guys respond to issues when machines have power problems that impact on the speed; and the speed of the truck in the cycle. They have to respond to the small maintenance issues that crop up with respect to air pressure leaks that have an impact on starting. All these things impact on the efciency of geting trucks out into the circuit and geting around. And just all the well-established preventative maintenance aspects of making sure that a truck, when it comes into the workshop, gets its work done, completed and comes out on time, is the key. Robert Moore will share his insights in more detail at AusAsia MinTech, focusing on improving maintenance practices driven by real time data, equipment modifcation, haulage route and truck allocation. AusAsia Min Tech will take place on 26 to 27 August 2014 at the Perth Convention and Exhibition Centre in Western Australia. You can visit to know more. How to drive excellence in mine haulage and feet management Increasing efficiency and reducing costs in mine haulage is crucial for site operations, but what are the right strategies to achieve those goals? And how can technology be used to support such efforts? Jared Haube, is joined by Robert Moore, Estimating and Engineering Manager at Thiess, to discuss excellence in mine haulage.

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