Sökning: "Rock fragmentation"
Visar resultat 16 - 20 av 35 avhandlingar innehållade orden Rock fragmentation.
16. Computer vision for rock aggregates
Sammanfattning : Measurement of size, shape and texture of aggregates (rockparticles) is often used in geological mapping, rockclassification, quarry and mine production. The size ofaggregates varies from micro-meters to meters, and the types ofaggregates may be classified as natural (i.e. sandstone, graveland 'natural blocks') and artificial (i. LÄS MER
17. Bonded Particle Model for Jointed Rock Mass
Sammanfattning : Jointed rock masses are formed of intact rock and joints. There-fore, proper characterization of rock mass behavior has to consid-er the combined behavior of the intact rock blocks and that of the joints. This thesis presents the theoretical background of the Synthetic Rock Mass (SRM) modeling technique along with example applica-tions. LÄS MER
18. Efficiency of a percussive process for fragmentation of rock and similar materials
Sammanfattning : .... LÄS MER
19. Numerical modelling of the rock fracture process under mechanical loading
Sammanfattning : The fracture of rock has been the subject of the extensive research in the mechanical fragmentation. With the rapid development of computing power, interactive computer graphics and topological data structure, numerical tool has become a good tool to gain some insights into the problem of rock fracture. LÄS MER
20. Optimisation of fragmentation and comminution at Boliden Mineral, Aitik Operation
Sammanfattning : Syftet med denna avhandling är att optimera fragmenteringen i Bolidens Minerals dagbrott Aitikgruvan. Sprängning är en av huvudprocesserna i gruvbrytning och dess resultat har stor inverkan på gruvans totala ekonomi. LÄS MER