Sökning: "rock engineering"

Visar resultat 16 - 20 av 95 uppsatser innehållade orden rock engineering.

  1. 16. Low cost thermal storage for solar dryers in the Himalayas

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Adam Karlsson; [2022]
    Nyckelord :heat storage; solar dryer; solar drying; rock bed storage; thermal storage; pcm; water heat storage; himalayas; Technology and Engineering;

    Sammanfattning : Post-harvest losses in the himalayan regions of Nepal and Bhutan are high, and current drying methods are in need of improvement. This report improves on a previously developed solar dryer design and evaluates thermal storage solutions for the ’SolarFood: Reducing post-harvest losses through improved solar drying’ project. LÄS MER

  3. 17. Comparison of Level Control Strategies for a Flotation Series in the Mining Industry

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Frida Norlund; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Separating valuable minerals from waste rock is an important step in the production of metals. This is for copper ore done through a process called flotation. A flotation series consists of tank cells in series where the minerals are collected in a froth on top of the cells. LÄS MER

  4. 18. Evaluation of long-term effects of excavated sulfide-bearing rock : - A case study in western Sweden

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Ida Sundblom; [2022]
    Nyckelord :sulfide-bearing rock; acid rock drainage; sulfide oxidation;

    Sammanfattning : Sulfide-bearing rock that is excavated in conjunction with construction projects can cause environmental and construction engineering problems. Sulfidic minerals oxidize when they are exposed to an oxidant and water, which can make them generate acid rock drainage (ARD) with high concentrations of metals and sulphate. LÄS MER

  5. 19. Development of grout for deep shaft

    M1-uppsats, KTH/Byggteknik och design

    Författare :Karl Lindberg; Adam von Krusenstierna; [2021]
    Nyckelord :Rock injection; Grout; Shaft; Laboration; Cement; Cement mixture; Bergsinjektering; Injekteringsbruk; Schakt; Laboration; Cement; Cementblandning;

    Sammanfattning : In tunnel engineering one of the most important factors are the groundwater flow. To solve this problem a method called grouting is commonly used. In this study grout mixes are developed based on specific requirements for a deep shaft located next to a body of water. LÄS MER

  7. 20. Förbättring av bärighet vid brand : Utvärdering av befintlig betongstomme i hus 08 Falu lasarett

    Uppsats för yrkesexamina på grundnivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Erik Lindholm; Robin Malmqvist; [2021]
    Nyckelord :Structural integrity in case of fire; EKS 11; BBR; Eurocode 2; Concrete cover; Cross section; In-situ concrete building; Splitting in case of fire.; Bärighet vid brand; Täckande betongskikt; Tvärsnitt; Platsgjuten betongstomme; Brandspjälkning; EKS 11; BBR; Eurokod 2.;

    Sammanfattning : Purpose: this degree project will examine the possibilities of increasing the structural integrity in case of fire of a preexisting concrete building according to the rules in EKS 11, specifically for a hospital building. Furthermore, the degree project will provide solutions to increase the structural integrity in case of fire. LÄS MER