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Byggnation i trafikerad järnvägsmiljö: Erfarenhetsåterföring från genomförda stationsbyggnadsprojekt
2013 (Swedish)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The Swedish railway network currently has several sections which are classified as congested while both freight and passenger traffic is expected to increase. To meet increased demand, several of these sections are facing major rebuilding and new construction. This creates a need to find methods for efficient production with minimum disruption of the train services. One of the sections that are being rebuilt is the part of Mälarbanan that is leading into Stockholm, between Kallhäll and Tomteboda. Much of the production work there is performed during a traffic situation with an intensity of about 200 trains per day, which really complicates the construction. This master thesis has been made in cooperation with Trafikverket, project Mälarbanan, and has the purpose to illustrate the challenge to build in a railway environment. It includes how the work can be carried out with respect to the traffic situation and which construction methods that are used. The goal is to provide inspiration, ideas and experiences for future projects that are facing similar challenges as the project Mälarbanan. Four case studies have been conducted of selected projects using interviews, document studies and field trips.The work has to be planned together with the train traffic when building in railway environment. For traffic disturbing operations, permissions to work in tracks without trains must be applied for two years in advance. The study exemplifies useful construction methods that need to be carefully planned to ensure high productivity when times for work in track without train traffic are obtained. The study also shows practical construction methods for production with proceeding train traffic. A common method is to use prefabricated building objects with a high degree mounting outside the track area. The building objects can then be lifted in place on times when the track is closed for traffic, usually during the night. The greatest advantage with respect to the efficiency is perhaps if physical protection against the train traffic can be built early in the project. Buildability and the possibility of innovative construction methods are greatly affected by decisions taken in early stages. To ensure the quality of the taken decisions and reduce the risk that smart solutions are excluded, it is important to that production expertise is involved in early stages of the project. One way is to improve exchange of experience between projects and individuals who had faced similar challenges, both between different actors and in the own organization. In addition, it is important to find out the constraints and preconditions of the project as early as possible, such as geotechnical conditions and traffic situation. This in turn will help to make right decisions and to choose right solutions. Changes in the production phase generally costs much more than doing thorough investigations in the early stages of the project.

Place, publisher, year, edition, pages
2013. , 77 p.
Keyword [sv]
Byggmetoder, Byggbarhet, Järnväg, Byggnation, Trafikerat spår, Säkerhet, Banarbetstider, Prefabricering, Innovation, Erfarenhetsåterföring, Produktionsmetod, fallstudier
URN: urn:nbn:se:ltu:diva-57928Local ID: e8b92937-45ea-4f37-8e67-16777a4551dfOAI: diva2:1031316
Subject / course
Student thesis, at least 30 credits
Educational program
Civil Engineering, master's level
Validerat; 20130501 (global_studentproject_submitter)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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