Sökning: "hydrostatic head"

Hittade 4 uppsatser innehållade orden hydrostatic head.

  1. 1. Timber pile-supported road embankment : Numerical and analytical analysis of field monitoring project E4 Råneå

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Geoteknologi

    Författare :Kent Nystedt; [2022]
    Nyckelord :Geosynthetic reinforcement; Geosynthetic reinforced pile supported embankment; Pile distance; Embankment height; Finite element method; Pile efficacy;

    Sammanfattning : The previous E4 Råneå road embankment was prone to flooding. Risk of flooding in combination with settlements of the road due to the weak underlying sulphide soil was problematic. The Swedish Transportation Administration improved the length section E4 Råneå by rebuilding the road using the method light embankment piling. LÄS MER

  3. 2. Modellförsök avseende bergspänningars betydelse för spännvidd av valv

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Minna Larsson; Klara Skoog; [2020]
    Nyckelord :arch; arching; span of arch; rock stress; rock reinforcement; rock bolt; valv; valvbildning; spännvidd; bergspänning; bergförstärkning; bergbult;

    Sammanfattning : Tunnels and anthropogenic underground cavities are a very natural part of our everyday modern life. Especially in larger cities such as Stockholm where the infrastructure reaches far above ground level as well as deep below the surface. LÄS MER

  4. 3. 2D Effects of Geomorphology and Discharge on Hyporheic Exchange—a HEC-RAS Modelling Study

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Olivia Preston; [2020]
    Nyckelord :average hyporheic exchange velocity; water surface elevation; water surface concavity; hydrostatic head;

    Sammanfattning : Hyporheic exchange is an ecologically and biogeochemically essential function of rivers and streams. One important driver of hydrostatic (hyporheic) exchange is gra- dients in the hydrostatic hydraulic head at the streambed. LÄS MER

  5. 4. Modelling of Venous Biomechanics and Evaluation using Imaging, Positive Airway Pressure and Postural Changes

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Madelene Holmgren; [2016]
    Nyckelord :Jugular vein; Venous pressure; Positive airway pressure; Cross sectional area; Posture; Ultrasound; Halsven; Ventryck; Positivt luftvägstryck; Tvärsnittsarea; Kroppsposition; Ultraljud;

    Sammanfattning : Knowledge about biomechanical properties of veins is of importance for understanding the physiologyof the venous system. Specifically for this thesis there is a motivation based on an idea of how to usebiomechanics of the vein in the development of new non-invasive measurement techniques for assessingthe pressure in the brain. LÄS MER