Search for dissertations about: "Underground mining"
Showing result 16 - 20 of 66 swedish dissertations containing the words Underground mining.
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16. Behaviour and stability of shallow underground constructions
Abstract : The growing needs of urbanization, like more transport possibilities, sewers, maintenance tunnels, the need of constructing shallow tunnels increase. By a better understanding of the mechanical properties and state of stress in the shallow parts of the bedrock it may be possible to determine which factors that are of importance at a specific construction site, and thereby increase the cost efficiency of pre-investigations and the tunnel construction. READ MORE
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17. Rock mass transportation systems in underground mines: consequences and solutions when mining at greater depths
Abstract : The research presented in this thesis addresses a number of challenges related to rock mass transportation in deep underground mines. In particular, high energy consumption and high exhaust gas emissions from diesel and electric LHDs, the effects of ore pass loss on the loading, hauling and dumping operations due to increasing stresses and increasing costs due to the longer vertical transportation of the rock masses. READ MORE
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18. Towards reliable seismic hazard assessment in underground mines
Abstract : Seismic hazard is used for national, regional, and local level to ensure safe constructions in specific areas. In the mining industry this information is valuable e.g. to design infrastructure or rock support, to reduce the risk of rock burst and to minimise the risk of locating personnel in hazardous areas. READ MORE
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19. Data-driven Condition Monitoring in Mining Vehicles
Abstract : Situation awareness is a crucial capability of any autonomous system, including mining vehicles such as drill rigs and mine trucks. Typically situation awareness is interpreted as the capability of an autonomous system to interpret its surroundings and the intentions of other agents. READ MORE
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20. Study of heat release rates of mining vehicles in underground hard rock mines
Abstract : A unique study on fire safety in hard rock underground mines with focus on heat release rates of mining vehicles is presented. A literature inventory was conducted with respect to fires in underground hard rock mines, which revealed that the most common fire cause in underground mines was flammable liquid sprayed onto hot surface and the most common fire object was a vehicle. READ MORE