Search for dissertations about: "underground mines"
Showing result 1 - 5 of 34 swedish dissertations containing the words underground mines.
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1. Design fires in underground hard rock mines
Abstract : During several decades considerable research activities have been conducted with respect to fires in coal mines, but the research activities with respect to hard rock mines have been limited. As the hard rock mines are getting more complex the need for deeper understanding of fires in underground hard rock mines are getting more in demand. READ MORE
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2. Short-term Underground Mine Scheduling : An Industrial Application of Constraint Programming
Abstract : The mining industry is facing a surge in automation in the pursuit of safe and profitable operations. As the excavation process is increasingly automated, today's mining companies seek to optimize the coordination of the now automated mining activities. READ MORE
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3. Short-term Underground Mine Scheduling : Constraint Programming in an Industrial Application
Abstract : The operational performance of an underground mine depends critically on how the production is scheduled. Increasingly advanced methods are used to create optimized long-term plans, and simultaneously the actual excavation is getting more and more automated. READ MORE
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4. Load-Haul-Dump operations in underground mines
Abstract : The research presented in this thesis addresses several aspects of loading operations inunderground mines, in particular tools and equipment selection. It also addresses the flexibilityof the fleet when subject to substantial disturbances, such as ore pass loss, and proposes integration of the scheduling system with discrete event simulation. READ MORE
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5. Haulage system optimization for underground mines : A discrete event simulation and mixed integer programming approach
Abstract : In coming decades, many underground mines will operate at greater depths, which will affect many operational factors such as increased rock stress, longer haulage distances, and higher energy consumption, which potentially can generate lower production rates. The increased rock stresses may lead to smaller sized openings, further restricting the size of loading and hauling equipment that can be used. READ MORE