Search for dissertations about: "rock fall"
Showing result 1 - 5 of 30 swedish dissertations containing the words rock fall.
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1. Drip Sealing Grouting of Tunnels in Crystalline Rock: Conceptualisation and Technical Strategies
Abstract : A conceptual model of the groundwater hydraulic conditions around the tunnel contour in ancient brittle crystalline rocks has been developed and verified. The general aim has been to reach an understanding of the groundwater conditions in and close to the tunnel roof where dripping takes place and to propose technical and practical strategies for waterproofing. READ MORE
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2. Listening to the story of the rock mass : The integration of conventional and unconventional data to understand rock mass behaviour at the Kiirunavaara Mine
Abstract : The need to understand rock mass behaviour has never been greater; as mining globally progresses deeper to extract the precious resources humankind needs to maintain and forward our lives, we encounter rock behaviours associated with deep mining. These environments typically experience seismicity (including fault slip), rock bursting, strain bursting, spalling, aseismic movement along pre-existing discontinuities, and ground falls. READ MORE
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3. Structural behaviour of shotcrete in hard rock tunnels
Abstract : Tunnels in hard and jointed rock are normally excavated in an arch shape to enable the rock mass to support its weight. Since the beginning of the 1980's, fibre reinforced shotcrete (FRS) in combination with rock bolts have been the dominating support method for hard rock tunnels. READ MORE
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4. Peak Shear Strength of Rock Joints – Towards a Methodology for Prediction Based on Field Data
Abstract : The rock joint shear strength at field scale is an important design parameter and remains a challenge for rock mechanics engineers. In Sweden, there exist a large number of concrete dams that are founded on rock masses which in many cases contain sub-horizontal rock joints. READ MORE
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5. Accident Risk and Environmental Assessment : Development of an Assessment Guideline with Examination in Northern Scandinavia
Abstract : In environmental impact assessment (EIA), accident risk should be considered as one impact. However, few studies have compared assessed risk levels with documented accidents. There is thus a need for assessing accuracy of risk assessment methodologies. READ MORE