Search for dissertations about: "hydraulic fracture"
Showing result 1 - 5 of 39 swedish dissertations containing the words hydraulic fracture.
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1. Hydro-Mechanical Behaviour of a Pressurised Single Fracture: An In-situ Experiment
Abstract : Exploration of ground water resources, grouting, disposal of nuclear waste and extraction of geothermal energy are examples of activities which require consideration of the relationship between effective stress and transmissivity. However, this relationship is poorly understood and very few investigations have been conducted in field scale. READ MORE
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2. Tunnel Grouting: Engineering Methods for Characterization of Fracture Systems in Hard Rock and Implications for Tunnel Inflow
Abstract : In tunnel construction in hard rock, a common method to reduce water inflow is to perform pre-grouting. The grouting design should be adapted to the current rock mass conditions as well as the stated inflow requirement for the tunnel project. READ MORE
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3. The Impact of Fracture Geometry on the Hydromechanical Behaviour of Crystalline Rock
Abstract : Effective construction of tunnels in fractured crystalline rock requires a unified approach for handling rock mechanics and hydrogeological issues. Traditionally, rock mechanics and hydrogeology not only use different nomenclature, they also measure parameters such as e.g. aperture differently. READ MORE
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4. Network Modelling for Evaluation of Mechanical Properties of Cellulose Fibre Fluff
Abstract : A network mechanics model for cellulose fibre fluff is proposed. 2D and 3D versions of the model have been implemented and the influence of various micro-level parameters on the global mechanical performance has been determined by means of computer simulations. READ MORE
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5. Novel methods for 3-D semi-automatic mapping of fracture geometry at exposed rock faces
Abstract : To analyse the influence of fractures on hydraulic andmechanical behaviour of fractured rock masses, it is essentialto characterise fracture geometry at exposed rock faces. Thisthesis describes three semi-automatic methods for measuring andquantifying geometrical parameters of fractures, and aims tooffer a novel approach to the traditional mapping methods. READ MORE