Search for dissertations about: "railway tunnel"
Showing result 1 - 5 of 15 swedish dissertations containing the words railway tunnel.
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1. On the Directivity of Railway Noise Sources
Abstract : This dissertation deals with the directivity of railway noise. The directivity of railway noise is of particular importance when we have high-rise buildings close to the track, tunnel openings, partial barriers, or when we calculate the maximum sound pressure level during a pass-by based on the sound power level of the different sub-sources of a train. READ MORE
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2. Exploring the Railway System from a Risk Governance Perspective
Abstract : In recent decades, the Swedish railway system has faced substantial deregulations. As a result, management of risk is often carried out in settings involving multiple stakeholders having various roles, mandates, and viewpoints on risk, and where no single stakeholder has the superior authority. READ MORE
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3. Local Environment at Stake : The Hallandsås Railway Tunnel in a Social and Cultural Context
Abstract : A major trend in facility siting research focuses on economic and psychological aspects of land-use regarding the location of potentially hazardous technological facilities including storage for high-level radioactive waste, landfills, chemical plants, large-scale dams, or waste incinerators. Such facilities frequently have profound environmental impact and are often understood by local citizens as intrusions on their environment that threaten landscape, place, and community. READ MORE
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4. Freezing Temperature Flows in Railway Tunnels and its Consequence on the Rock Supporting Structure, the Rock and the Reinforcing Elements
Abstract : Water in the surrounding rock mass flows into the tunnel via naturally occurring joints and via cracks caused by the blasting used to excavate the tunnel. The most common method in Sweden to reduce or prevent leakage problems are first and foremost the use of grouting. READ MORE
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5. A ground-borne noise prediction model for railway traffic in tunnels in bedrock
Abstract : Human life has become more manageable by the expansion of railway lines. However, despite providing convenience, railways increase noise and vibration in residential areas. Vibrations and noise generated by railways may harm human health, cause cosmetic damage and have an adverse impact on the environment. READ MORE