Search for dissertations about: "hard infrastructure"
Showing result 1 - 5 of 50 swedish dissertations containing the words hard infrastructure.
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1. 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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2. Sociotechnical Knowledge. An Operationalised Approach to Localised Infrastructure Planning and Sustainable Urban Development
Abstract : In processes of urban infrastructural reconfiguration, there is a counterproductive tension between tendencies of de-monopolisation and market liberalisation, on the one hand, and ambitions for sustainable urban development, drawing on Keynesian reformism and ecological modernisation, on the other. In this thesis, the aim is to overcome this tension and to facilitate a concrete operationalisation of the notion &'sustainable urban development' within concrete and localised processes of planning, design, decision-making and implementation. READ MORE
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3. Drivers overtaking cyclists and pedestrians: Modeling road-user behavior for traffic safety
Abstract : In a world aiming to shift to more sustainable modes of transportation, vulnerable road users (VRUs) like cyclists and pedestrians are still confronted with significant barriers to safety, particularly on rural roads where overtaking maneuvers represent a frequent and dangerous interaction with motorized traffic. If drivers misjudge their kinematics, even near-crashes without physical contact can harm the perceived safety of the VRU, which may decrease the willingness to continue cycling or walking on these roads. READ MORE
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4. Autonomous bridge inspection based on a generated digital model
Abstract : Railway owners manage geographically dispersed networks comprising major elements of ageing infrastructure that are very susceptible to natural hazards. Consequently, transport agencies must address maintenance issues to guarantee serviceability and safety. READ MORE
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5. Restraint Effects in Concrete Bridges : A Study of Cracking due to Thermal Actions and Shrinkage in Portal Frame Bridges
Abstract : Thermal actions and shrinkage cause volume changes in concrete structures. In structures which are restrained from movements, the restraint effects can cause cracking. However, when cracking occurs, the structure can deform to some extent, which reduces the restraint stresses and thus also the crack widths. READ MORE