Development and analysis of 3D geological/geomechanical models for pumped hydroelectric power plant KozjakVukadin, Vladimir (Avtor) , Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Lastnik avtorskih pravic) geological investigationsgeomechanical investigations3D geological-geomechanical modelsHPP KozjakIn order to specify the geological and geotechnical conditions for the construction of the Kozjak pumpedstorage hydroelectric power plant (HPP), the site area has undergone considerable geological, geophysical and geomechanical investigations. Due to the complexity of the geotechnical constructions and the size of the investigated site a novel approach was proposed, where the results of the investigation were used to develop 3D geological/ geomechanical models. The models were created with the integration of all the available results and data into typical geomechanical units that were subsequently given spatial dimensions. Through an analysis of the models the relationships between the different units were better understood and the critical areas were quickly identified and verified. In this paper the models for the accumulation reservoir and the engine room are presented. The overview of the executed investigations and the results are given together with a discussion on the scope and the number of executed investigations from the standpoint of the 3D geological/geomechanical model’s creation.20092018-06-06 09:43:56Znanstveno delo70682ISSN: 1854-0171 UDK: 550.8OceCobissID: 215987712COBISS_ID: 1365987ISSN pri članku: 1854-0171NUK URN: URN:SI:UM:DK:QRTELX5ZslFakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru