Blar i NTNU Open på forfatter "Nordal, Steinar"

Viser treff 61-80 av 132

    • Investigation of the change in soil fabric during cone penetration in silt using 2D measurements 

      Paniagua Lopez, Ana Priscilla; Fonseca, Joana; Gylland, Anders Samstad; Nordal, Steinar (Journal article; Peer reviewed, 2017)
      Interpretation of CPTU testing in silt is non-trivial because of the partially drained conditions that are likely to occur during penetration. A better understanding of the pore pressure generation/dissipation is needed ...

    • Isogeometric Analysis of Coupled Problems in Porous Media 

      Bekele, Yared Worku (Doctoral theses at NTNU;2016:140, Doctoral thesis, 2016)
      Computational modeling of coupled problems in porous media is essential in various disciplines of science and engineering. The porous media of interest here are soils subjected to different physical processes. In particular, ...

    • Isogeometric Analysis of Thermo-Hydro-Mechanically Coupled Processes in Soil 

      Ryghseter, Daniel (Master thesis, 2016)
      This thesis conducts numerical studies on THM (Thermo-Hydro-Mechanically) coupled problems, using isogeometric elements and two models created at NTNU. One model is for fully saturated porous media, and the second is ...

    • Isogeometric analysis of THM coupled processes in ground freezing 

      Bekele, Yared Worku; Kyokawa, Hiroyuki; Kvarving, Arne Morten; Kvamsdal, Trond; Nordal, Steinar (Journal article; Peer reviewed, 2017)
      An isogeometric analysis (IGA) based numerical model is presented for simulation of thermo-hydro-mechanically (THM) coupled processes in ground freezing. The momentum, mass and energy conservation equations are derived ...

    • Iteratively coupled implicit dynamic MPM-FVM 

      Nøst, Hilde Aas (Doctoral theses at NTNU;2019:19, Doctoral thesis, 2019)
      Several geotechnical engineering problems involve the interaction between deformation of the soil skeleton and the development of pore water pressures. Very often the deformations are considered to be small, which opens ...

    • Jordskjelvberegning i henhold til Eurokode 8 og PLAXIS 2D 

      Chadha, Kunal (Master thesis, 2015)
      Denne oppgaven tar for seg bruk av numeriske analyser med elementprogrammet PLAXIS 2D som er brukt til jordskjelvberegninger for tre ulike modeller. Hensikten er å undersøke hvordan dette korresponderer med Eurokode 8, ...

    • Jordskjelvrespons av spunt 

      Haugen, Siri Bente (Master thesis, 2013)
      Kollaps av støttekonstruksjoner på grunn av jordskjelv kan føre til store skader. Det er derfor et behov for pålitelige dimensjoneringsmetoder for slike konstruksjoner. Denne oppgaven tar for seg bruk av numeriske analyser ...

    • Knekning av peler i bløt jord: Et studie av laterale last og deformasjonskurver 

      Søjdis, Tommy Haugen (Master thesis, 2012)
      Masteroppgaven tar for seg teorigrunnlaget ved beregning av knekkapasitet for peler i bløt jord. I beregningene inngår parametrene for pelens og jordens stivhet. Den teoretiske knekkapasiteten blir så redusert på grunn av ...

    • Laboratory investigation of performance of a screen type debris-flow countermeasure 

      Yifru, Ashenafi Lulseged; Laache, Emilie; Norem, Harald Anders; Nordal, Steinar; Thakur, Vikas Kumar Singh (Journal article; Peer reviewed, 2018)
      Debris-flows are forms of landslides in mountainous regions that can potentially cause significant damage. Structural countermeasures to mitigate an entire debris-flow may become unrealistically massive and expensive. If ...

    • Large scale model testing of CPTU in sand 

      Eidem, Karina Trøan; Lindgaard, Kristian Werner (Master thesis, 2022)
      Feltundersøkelser er viktig innenfor geoteknisk prosjektering, og kan være uunværlig for å unngå jordskred. CPTU-testen er en viktig feltundersøkelse på grunn av at det er en metode som er enkel og tilgjengelig å bruke, i ...

    • Large scale model testing of CPTU in sand 

      Eidem, Karina Trøan; Lindgaard, Kristian Werner (Master thesis, 2022)
      Feltundersøkelser er viktig innenfor geoteknisk prosjektering, og kan være uunværlig for å unngå jordskred. CPTU-testen er en viktig feltundersøkelse på grunn av at det er en metode som er enkel og tilgjengelig å bruke, i ...

    • Limitation of damage from overburden drilling for piles and tieback anchors 

      Lande, Einar John (Doctoral theses at NTNU;2024:175, Doctoral thesis, 2024)
      Several cases with unexpected damages related to excessive ground movements induced by initial and secondary effects from overburden drilling to install tieback anchors and piles from inside deep excavations were observed ...

    • Measuring Negative Pore Pressures in Partially Frozen Saturated Soils 

      Holten, Johannes Gaspar (Master thesis, 2017)
      Freezing of soil is an issue which has many implications on modern infrastructure, in which frost heave plays a pivotal role. During freezing the behavior of the soil and the flow of water is altered. In an engineering ...

    • Mixed Method for Isogeometric Analysis of Coupled Flow and Deformation in Poroelastic Media 

      Bekele, Yared Worku; Fonn, Eivind; Kvamsdal, Trond; Kvarving, Arne Morten; Nordal, Steinar (Peer reviewed; Journal article, 2022)
      Pressure oscillations at small time steps have been known to be an issue in poroelasticity simulations. A review of proposed approaches to overcome this problem is presented. Critical time steps are specified to alleviate ...

    • Model scale testing of CPTU in a silty soil 

      Kim, Yunhee (Master thesis, 2013)
      The cone penetration test (CPTU) in silty soil in a model scale were conducted in two samples: MMT and SD sample. The thesis studies the effect of the boundary conditions (soft and rigid boundaries) and the effect of the ...

    • Model Testing and Rheology of a Fine Grain Rich Debris Flow 

      Hognestad, Åmund (Master thesis, 2018)
      Debris flows are a hazardous type of landslide, primarily caused by intense precipitation in steep mountainous terrain. Water, soil and debris mix to form a slurry that advances rapidly downslope, growing in size as it ...

    • Model Testing of the Drainage Screen Type Debris Flow Breaker 

      Laache, Emilie (Master thesis, 2016)
      Debris flows are a hazardous geological phenomenon occurring in mountainous terrain. In Norway the National Public Roads Administration has registered around 1060 debris flows since the 1970's. The damages caused by a ...

    • Model to predict number of cycles from earthquake shaking for potential liquefaction assessment 

      Stelzer, Ryan (Master thesis, 2019)

    • Modellering av endring i ankerkrefter som følge av temperaturendring 

      Sem, Hilde Vestre (Master thesis, 2020)
      Multiconsult har hatt oppdrag som geoteknisk rådgiver på prosjektet Kværnerdammen. Et av tiltakene som ble utført i forbindelse med prosjektet, var etableringen av en permanent sikringskonstruksjon for å ivareta krav til ...

    • Modelleringseffekter for 2D og 3D FEM analyse av en korrugert stålrørskulvert 

      Birkeland, Joakim (Master thesis, 2020)
      Korrugerte stålrørskulverter er en samvirkekonstruksjon som i mange tilfeller kan være et gunstig alternativ til mer konvensjonelle betongkulverter eller bruer. I design av slike fleksible rørkulverter er et mye benyttet ...