Essays about: "dam stability in dams"

Showing result 1 - 5 of 24 essays containing the words dam stability in dams.

  1. 1. Geomechanical testing of non-hardening grout : for determination of flowability and strength properties

    University essay from Luleå tekniska universitet/Geoteknologi

    Author : Axel Barrdahl; [2022]
    Keywords : Non-hardening; Grout; Embankment dam; Repair; Fall cone; Uniaxial Compressive Strength; UCS; Triaxial;

    Abstract : Due to an increasing amount of aging tendencies in Swedish embankment dams, failures such as internal erosion has become a more common problem. Internal erosion is a phenomenon where certain soil material within the embankment dam is removed, often over a longer period of time. READ MORE

  3. 2. 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

  4. 3. Assessing the safety of cracked concrete dams

    University essay from KTH/Betongbyggnad

    Author : Abdelsamad Mohamed Osman Fadul; [2021]
    Keywords : Buttress dams; Concrete; Global stability; Design criteria; RIDAS; Sliding; Overturning; Finite element analysis; Progressive failure analysis;

    Abstract : AbstractThe overall safety of dams depend on several stipulations. One of them is global stability of the dam, which is addressed with approaches like that in (RIDAS, 2017) (the Swedish power companies’ guidelines for dam safety). When designing a new dam, two global failure modes; sliding and overturning should be considered according to RIDAS. READ MORE

  5. 4. Numerical study of the effect of thermal ice loads on concrete dams

    University essay from KTH/Betongbyggnad

    Author : Imal Zuwak; Wasseem Kordoghly; [2020]
    Keywords : Arch dam; Buttress dam; Concrete; Finite element analysis; Ice load; Valvdamm; Lamelldamm; Betong; Finit elementanalys; Islast;

    Abstract : It is essential to understand the mechanics of ice load and how it affects concrete dams located in a cold climate, such as Sweden, where the temperature becomes sufficiently cold to freeze the surface of the reservoir. The purpose of this thesis is to study ice load distribution along concrete dams, and its response during the application of an ice load. READ MORE

  6. 5. Safety Assessment of Cracked Buttress Dams

    University essay from KTH/Betongbyggnad

    Author : Robel Tekeste Fekadu; Sujata Kayastha; [2020]
    Keywords : Concrete buttress dam; finite element analysis; safety factor; global failure; reinforcement; corrosion; combined failure; traditional stability analysis;

    Abstract : Most of the concrete buttress dams in Sweden were built from the 1950s till the1980s based on the traditional method of analyses. Those structures are reinforced and heavy in structure. Their height to thickness ratio being large makes them prone to crack during their lifespan. READ MORE