A concept for trenchless pipe replacement

Ruud Johannes Franciscus Spoor

    Research output: ThesisEngD ThesisAcademic

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    In this project, a concept for a trenchless sewer replacement machine is investigated. Existing
    technologies are analysed and the choice is made to focus on the replacement of nonreinforced
    sewerage systems with a large diameter (¸ 800mm). Furthermore, it is shown that
    most trenchless replacement methods work on similar principles. Most existing replacement
    methods initially remove a pipe, then, directly behind the removal object, a new pipe for
    replacement is pushed or pulled in from a distance. The maximal replacement length as well
    as the capability of existing systems to replace curved and non-circular shaped sections of pipe
    are limited. This is due to the fact that existing systems either push or pull a replacement pipe
    from the top surface into the underground.
    The approach in this project is the creation of a pipe directly behind a cutting module. The
    proposed trenchless concept could extend limitations of existing pipe replacement systems.
    Experts form the municipality of Rotterdam have been interviewed and a use-case has
    been provided. Problems, parameters and requirements are identified and set-up based on
    information about existing trenchless technologies and expert interviews. As a result, it has
    been decided to split the design concept into four modules. These modules are named after
    the main function they perform. Namely: Cut, Create, Clamp and Transport.
    Concepts are proposed for each of the four modules. Simple calculations, simulations and
    small scale experiments are used to get insight into the feasibility of the modules.
    Original languageEnglish
    Awarding Institution
    • University of Twente
    • Stramigioli, Stefano, Supervisor
    • Engelen, Johan, Co-Supervisor
    • Greve, Hans, Co-Supervisor, External person
    Award date7 Sept 2017
    Place of PublicationEnschede
    Publication statusPublished - 18 Dec 2018


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