Sökning: "seepage"

Visar resultat 21 - 25 av 41 uppsatser innehållade ordet seepage.

  1. 21. Numerical Study on Seepage-induced Failure of Caisson Type Breakwaters Using a Stabilized ISPH

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Tetsuro Goda; [2017]
    Nyckelord :Tsunami; Breakwater; Particle method; SPH; Seepage flow; Technology and Engineering;

    Sammanfattning : This paper presents a stabilized incompressible smoothed particle hydrodynamics (ISPH) method to simultaneously simulate surface and seepage flow. The Navier-Stokes type equation, which manipulates the linear and nonlinear resistance effects caused from porous materials, are employed for tracking fluid motions in porous medium. LÄS MER

  3. 22. Closure of Lilla Bredsjön Tailings Dam : an Evaluation of the Long-Term Dam Safety Measures

    Master-uppsats, KTH/Vattendragsteknik

    Författare :Jenny Bramsäter; [2017]
    Nyckelord :tailings dams; seepage; pore pressure; slope stability; slip surfaces; long-term stability;

    Sammanfattning : The mining industry contributes to enormous amounts of waste all over the world, which places high demands on tailings dams. In Sweden, there are strict regulations regarding the management and treatment of tailings dams, but some dams that were built before these regulations existed still pose a threat to the environment. LÄS MER

  4. 23. Laboratory investigation of suffusion on dam core glacial till

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Daniel Yadetie Tuffa; [2017]
    Nyckelord :Internal erosion; Suffusion; Filter; Core; Glacial till; Embankment dam; Hydraulic gradients;

    Sammanfattning : The objective of this study is to provide a better understanding of suffusion characteristics of glacial soils and to present a simple yet reliable assessment procedure for determination of suffusion in the laboratory.Internal erosion by suffusion occurs in the core of an embankment dam when the ability of the soil to resist seepage forces is exceeded and voids are large enough to allow the transport of fine particles through the pores. LÄS MER

  5. 24. Fuktberäkning av vindar och jämförelse med mögelprover

    Kandidat-uppsats, Lunds universitet/LTH Ingenjörshögskolan vid Campus Helsingborg

    Författare :Armin Cukur; [2017]
    Nyckelord :vindkonstruktioner; simulering; wufi; mögel; mrd; fukt; klimatdata; snö; material; kutterspån; Technology and Engineering;

    Sammanfattning : The purpose of this thesis was to study how well the MRD-model (Mould Resistance Design) co-using the hygrothermal calculation software WUFI Pro 6 can predict mould growth in roof structures within long periods of time. The study was done on eleven roof structures situated at Malmberget within Gällivare Municipality between the years of 1961 – 2012 in WUFI Pro 6 (the structures were built around 1960 – 1965). LÄS MER

  7. 25. Stability analysis on a planned Mexican tailings dam

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för teknikvetenskaper

    Författare :Sofie Törnqvist; Amanda Lindquist; [2016]
    Nyckelord :;

    Sammanfattning : If mine waste materials are stored in dams, the dams are referred to as tailings dams. Tailings dam failures can lead to massive destruction in nearby areas because of the large amount of water and slurry tailings stored in the dams. Tailings dams are large constructions which therefore endure great stresses. LÄS MER