Sökning: "Shallow Tunnel"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Shallow Tunnel.

  1. 1. Analys av avvikelser hos damm med förställd höjdskala och tunnelutskov : Undersökning av fysisk modell och CFD-simulering

    Kandidat-uppsats, Högskolan i Gävle/Avdelningen för byggnadsteknik, energisystem och miljövetenskap

    Författare :Sarah Pettersson; [2021]
    Nyckelord :;

    Sammanfattning : The role of hydroelectricity in the Swedish energy system is increasing rapidly as the share of renewable energy sources in the country grows. Meanwhile, the dams are under current revision as ecology and safety requirements has changed since most of them were built. LÄS MER

  3. 2. High-resolution offshore reflection seismic investigation of the Stockholm Bypass tunnel

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Fengyi Liu; [2017]
    Nyckelord :infrastructure; tunnel; seismic; reflection; multiple; engineering;

    Sammanfattning : Boat-towed high-frequency, short source and receiver spacing, reflection seismic data, 16 profiles and in total 3884 m long, were acquired in 2008 for the planning of the Stockholm Bypass multilane (3 lanes in each direction in two different tubes) underground motorway tunnel designed to ease the ever increasing car traffic on the city and neighbouring regions. The planned bypass will be about 21 km long of which 18 km will be in the form of bedrock tunnel. LÄS MER

  4. 3. Kombinerad förundersökning för tunnlar med resistivitet och refraktionsseismik i urban undervattensmiljö

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Teknisk geologi; Lunds universitet/Väg- och vattenbyggnad (CI)

    Författare :Elisabeth Lindvall; Erik Warberg Larsson; [2016]
    Nyckelord :Geophysics; underground; structures; tunneling; construction; urban; TRUST; seismic; resistivity; underwater; survey; geofysik; resistivitet; seismik; undervatten; undersökning; Technology and Engineering;

    Sammanfattning : Due to expanding cities and increasing population infrastructure needs to expand in a safe and sustainable way with little effect on the environment and economy. Years of urbanization doesn’t make it easy, no free spaces are available and culture marked buildings are protected. The only alternative left is to construct in layers. LÄS MER

  5. 4. Limitations of the Ground Reaction Curve Concept for Shallow Tunnels Under Anisotropic In-situ Stress Conditions

    Uppsats för yrkesexamina på avancerad nivå, KTH/Jord- och bergmekanik

    Författare :Diego Lope Álvarez; [2012]
    Nyckelord :Ground reaction curve; shallow tunnels; isotropic stress conditions; anisotropic stress conditions; analytical solution;

    Sammanfattning : The deep mining industry and civil engineering need to perform rock stability analyses during excavation projects. These analyses are closely related with displacements in tunnel contours. The ground reaction curve is a powerful tool to characterize these displacements that is widely used in the New Austrian Tunneling Method. LÄS MER

  7. 5. Stability Analysis of Shallow Tunnel of Norra Länken

    Uppsats för yrkesexamina på avancerad nivå, KTH/Jord- och bergmekanik

    Författare :Rana Muhammad Sajid Imran Khan; Kabindra Man Shrestha; [2011]
    Nyckelord :FEM Calculation; Shallow Tunnel; PLAXIS; Norra Länken;

    Sammanfattning : Shallow Tunneling through highly populated areas of big cities is a challenging task. Almost in all the tunneling projects of shallow tunnel some or the other types of tunneling problems have been encountered and are still being faced. LÄS MER