Search for dissertations about: "Gruv- och Berganläggningsteknik"
Showing result 11 - 15 of 128 swedish dissertations containing the words Gruv- och Berganläggningsteknik.
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11. Drill process monitoring in percussive drilling for location of structural features, lithological boundaries and rock properties, and for drill productivity evaluation
Abstract : This thesis deals with the application of percussive drill monitoring in the mining and underground construction industries. The technique has been used to provide information on different ground properties and conditions and for drill productivity evaluation. READ MORE
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12. 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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13. Rock mass behavior under hydropower embankment dams with focus on fracture erosion and rock mass stability
Abstract : In Sweden there are about 190 large hydropower dams of varying age. According to the definition by the International Commission of Large Dams (ICOLD), if the height of the dam exceeds 15 m it is referred as large. Majority of these dams are of embankment type. READ MORE
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14. Technological properties of rock aggregates
Abstract : The commission of technical geology is to apply geological knowledge to the field of constructional engineering, mining technology, environmental protection, architecture etc. The sector of infrastructure is highly dependent on the production of crushed rock materials as the main constituent of e.g. road and railway constructions. READ MORE
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15. Deformation and failure of hard rock under laboratory and field conditions
Abstract : The understanding of the fracture mechanisms and failure processes of the rock is an important requirement for the design of mining excavations and civil engineering constructions. The fracture process is necessary for the excavation and fragmentation of rock, but fracture of rock must be avoided and controlled to preserve the integrity of the construction. READ MORE