Search for dissertations about: "Äspö Hard Rock Laboratory"

Showing result 1 - 5 of 15 swedish dissertations containing the words Äspö Hard Rock Laboratory.

  2. 1. Hydromechanical Behaviour of Fractures Close to Tunnels in Crystalline Rock

    Author : Johan Thörn; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Fracture stiffness; Fracture geometry; Laboratory experiments; Äspö HRL; Rock stress; In situ; Deformation measurement; Hallandsås; Hydromechanical coupling; Geological history;

    Abstract : The deformation and stiffness properties of rock fractures are important measurable parameters when describing their hydromechanical behaviour. Deformation refers to aperture change. Stiffness refers to the amount of deformation per stress change to which a fracture is subjected. READ MORE

  4. 2. New developments of the Integrated Stress Determination Method and application to the Äspö Hrad Rock Laboratory, Sweden

    Author : Daniel Ask; KTH; []
    Keywords : Integration; Rock Stress; ISDM; Äspö HRL;

    Abstract : This thesis presents new developments of the IntegratedStress Determination Method (ISDM) with application to the AspoHard Rock Laboratory (HRL), Oskarshamn, Sweden. The newdevelopments involve a 12-parameter representation of theregional stress field in the rock mass. READ MORE

  5. 3. Structural and neural network analyses of fracture systems at the Äspö Hard Rock Laboratory, SE Sweden

    Author : Manhal Sirat; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Fractures; artificial neural networks; data analysis; Äspö HRL; Geovetenskap; Earth sciences; Geovetenskap; Geofysik med inriktning mot fasta jordens fysik; Geophysics with specialization in Solid Earth Physics;

    Abstract : The > 10,000 fractures documented in the 450m deep Äspö Hard Rock Laboratory (HRL) provide a unique opportunity to study brittle deformation of a Swedish bedrock mass. The fracture population consists of six major sets, one subhorizontal and five sub-vertical. READ MORE

  6. 4. Deformation and failure of hard rock under laboratory and field conditions

    Author : Kelvis Pérez; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och berganläggningsteknik;

    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

  7. 5. Analysis of rock stress and rock stress measurements with application to Äspö HRL

    Author : Beatrice Lundholm; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Abstract : The process of choosing a site for a nuclear waste repository means that many aspects have to be taken into consideration. One of these is that the repository has to be mechanically stable for a long time. The mechanical stability of the rock is very difficult to determine. READ MORE