Sökning: "Tunnel Management System"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden Tunnel Management System.

  1. 1. Predictive Model for Traffic Control in Underground Mines

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Claes Andersson; [2019]
    Nyckelord :underground; mine; tunnel; traffic; control; management; collision avoidance; single track; velocity; prediction; distribution;

    Sammanfattning : Due to the nature of tunnels, a driver in an underground mine may find themselves driving without much vision of the road up ahead. The tunnels usually allow for traffic in both directions but are often only wide enough for a single vehicle. LÄS MER

  3. 2. Proposed Design and Feasibility Study of a Hybrid-Electric Propulsion System for a Ten Passenger Aircraft

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Fredrik Ollas; Gestur Ernir Viðarsson; [2019]
    Nyckelord :;

    Sammanfattning : This study aims to propose a hybridized version of a propulsion system for a 10-passenger aircraft and compare it to a conventional (reference) aircraft which uses a fossil fuelled turbofan for propulsion. The hybridized powertrain includes a fossil fuelled gas turbine, which is only used for producing electricity, coupled in a series configuration with a battery storage, that provide power to two electrically ducted fans. LÄS MER

  4. 3. Evaluation of the differences in characterization and classification of the rock mass quality : A comparison between pre-investigation, engineering geological forecast and tunnel mapping in the Northern Link project and the Cityline project

    Master-uppsats, KTH/Jord- och bergmekanik

    Författare :Mehdi Benhalima; [2016]
    Nyckelord :Characterization; classification; rock mass quality; engineering geological forecast; tunnel mapping; discontinuities; Q-system; Northern Link;

    Sammanfattning : In the construction of a tunnel, the characterization of the rock mass is performed in three different steps, in the pre-investigations, in the engineering geological forecast and in the tunnel mapping during construction. There has in previous work been observed that discrepancies exist between the results from these different steps, with a tendency to assign poorer rock mass quality in the tunnel mapping than in the pre-investigations and in the engineering geological forecast. LÄS MER

  5. 4. Samredovisning av BIM- och GIS-data

    Master-uppsats, Lunds universitet/Lantmäteri (CI); Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Anna Larsson; [2015]
    Nyckelord :geografiska informationssystem; GIS; byggnadsinformationsmodeller; BIM; 3D; visualisering; datainteroperabilitet; Technology and Engineering;

    Sammanfattning : Combined presentations of BIM- and GIS-data Throughout the process of creating and maintaining our built environment, from planning to building to facility management, large amounts of data are produced and consumed. Much of these are geographic data, processed in some form of GIS (Geographical Information System). LÄS MER

  7. 5. Underhåll av Stockholms Överdäckningar : Lärdomar från Söderledstunneln & Södra Station

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för systemteknik

    Författare :Erik Jungnelius; Gustaf Liss; [2015]
    Nyckelord :Överdäckning; Underhåll; Reinvesteringar; Söderledstunneln; Södra Station; Institutionella Förhållanden; Underhållsstrategi; Tunnel Management System; Stockholms stad; Trafikverket; Bostadsrättsförening; Långsiktig hållbar förvaltning;

    Sammanfattning : Recent trend of intense urbanization in combination with a low construction rate have resulted in a serious shortage of available housing in Swedish cities particularly Stockholm. To tackle an existing housing shortage an increased construction rate appears to be a necessity. LÄS MER