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Showing result 1 - 5 of 33 essays matching the above criteria.

  1. 1. Risk of Debris Flows in Åre : Literature Review of the Current Risk for Debris Flows in Åre Municipality and Predictions for the Future

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Lovisa Peterson; Wilma Sjöhag; [2023]
    Keywords : Åre municipality; Debris flows; Landslides; Geological hazards; Climate change; Åre kommun; Slamström; skred; Geologiska risker; Klimatförändringar;

    Abstract : Several debris flows have affected Åre municipality (Sw. Åre kommun) in the last 20 years. Jämtlandis a declared risk area for landslides and debris flows and there is an even higher probability oflandslides causing great damage around the Åre urban area. READ MORE

  3. 2. Study of Porosity in Uncoated Cemented Carbide Tools During Titanium Alloy Machining.

    University essay from Lunds universitet/Industriell Produktion

    Author : Cornelis Botermans; [2023]
    Keywords : Technology and Engineering;

    Abstract : During high speed machining of titanium alloys both the tool and workpiece material diffuse into one another affecting the surface integrity of the cutting tool edge and leading to fracture. One proposed mechanism by which the tool integrity is compromised results from the possible formation of porosity in to subsurface of the tool substrate close to the tool cutting edge. READ MORE

  4. 3. Jet Grout Bottom Plug in Deep Excavations : Numerical Analysis of a Tunnel Project

    University essay from KTH/Jord- och bergmekanik

    Author : Ida Schjelderup; [2022]
    Keywords : Jet grouting; jet grout bottom plug; cut-and-cover tunnel; tunnel design;

    Abstract : This master thesis has investigated the performance of a deep excavation with a jet grout bottom plug used to prevent bottom heave and hydraulic uplift failure. The concept of a jet grout plug as a structural and sealing component in a specific case was studied, namely one of the tunnel sections of The West Link tunnel project in Gothenburg. READ MORE

  5. 4. Numerical simulations of pore pressure on concrete buttress dams

    University essay from KTH/Betongbyggnad

    Author : Mohammed Abdi; Dimitirios Ntzimanis; [2022]
    Keywords : Porepressureanalysis; upliftpressure; buttressdams; drainage; groutcur- tain; rockfractures; damsafety; RIDAS.;

    Abstract : Uplift pressure is one of the most dominant forces on a dam structure. Difference in head water and tail water creates a hydraulic gradient resulting an upward oriented pressure called uplift pressure, which reduces the dam safety against sliding. READ MORE

  6. 5. Modelling the impacts of organic matter quality on soil carbon turnover and storage : continued testing of a novel dual-pore model against data collected from a long-term study site in Offer, Sweden

    University essay from SLU/Dept. of Soil and Environment

    Author : Mikael Sasha Dooha; [2021]
    Keywords : soil; soil organic matter; carbon; carbon sequestration; tillage; land-use; soil structure; porosity; modelling; humification;

    Abstract : As we look for solutions to the worsening climate crisis, carbon sequestration has become a popular strategy to mitigate CO2 emissions. Carbon models are used to predict or emulate changes in future soil organic carbon (SOC) stocks, but most fail to account for the influence of pore size on soil structure and SOC storage. READ MORE