Browsing NTNU Open by Author "Nordal, Steinar"
Now showing items 21-40 of 132
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Correlation of Properties in Geotechnical Engineering - The impact of Index parameters on Mechanical Properties of Soil
Londalen, Marie Monsen (Master thesis, 2018)In order to effectively use the mechanical parameters of a soil as a tool in soil mechanics, insight about basic properties is necessary. Index properties of soil, such as the water content and the plasticity index influence ... -
CPTU-detection of thin clay layers in sand - Results from calibration chamber testing
Skrede, Hallvard (Master thesis, 2021)Skred langs kystområdene i Norge forekommer og utgjør stadig en risiko for samfunnet og generell infrastruktur. Studier av tidligere skred har vist at mellomliggende tynne leirelag i breelv- og elveavsetninger ofte fungerer ... -
Delvis drenert analyse av innvendig avstivet utgraving
Myhrvold, Michael F (Master thesis, 2013)Denne masteroppgaven omhandler analyser av de delvis drenerte effektene som kan oppstå ved innvendig, avstivede utgravinger. Formålet med masteroppgaven er å gjennomføre en numerisk studie av prosessen som styrer den ... -
Detection of Landslides - Using Optical Satellite Remote Sensing
Fjeld, Mads Brandt (Master thesis, 2018)Norway is exposed to frequent landslide activity. A large number of landslides occur in Norway each year, causing damage to infrastructure, or even loss of lives. Due to the changing climate and more extreme weather patterns, ... -
Development and Evaluation of an Effective Stress Based Model for Soft Clays
Bjerre, Jesper (Master thesis, 2015)The term, natural soft clay, is commonly used to describe a normal or slightly overconsolidated clay. This soil type may be encountered in e.g. Scandinavia, Eastern Canada and South East Asia. The mechanical response of ... -
Development and Implementation of Effective Stress Soil Models
Gavel-Solberg, Vegard (Master thesis, 2014)Soil exhibit complex behavior that require advanced models to recreate stiffness and strength during loading. The complex behavior may be due to preconsolidation, dilation and contraction, softening, anisotropy, stress ... -
Dynamisk testing ved endimensjonal bølgeteori til estimering av aksiell statisk bæreevne
Firman, Henning; Frydenberg, Olav (Master thesis, 2014)Dynamisk testing for estimering av aksiell statisk bæreevne for peler, basert på endimensjonal bølgeteori har i senere år blitt mer tatt i bruk i Norge. Hovedfokuset for denne oppgaven er å forstå og presentere bruk av ... -
Earthquake Analysis of Subsea Structure on Caisson Foundation using 3D Finite Element Solution
Brandt, Madeleine (Master thesis, 2014)One of the challenging problems in geotechnical design of caisson foundations for offshore structures is the determination of soil-structure interaction during earthquakes. In this thesis, earthquake analyses were performed ... -
Effect of Anisotropy, Strain Rate and Progressive Failure in Numerical Simulations of the Shear Vane Test
Rismyhr, Kristian (Master thesis, 2017)The shear vane test is a method of determining the in-situ undrained strength and remolded shear strength of cohesive soils. During the shear vane test, an increasing torque is applied until the surrounding soil goes to ... -
Effect of piezocone penetration rate on the classification of Norweian silt
Bihs, Annika; Nordal, Steinar; Long, Michael; Paniagua Lopez, Ana Priscilla; Gylland, Anders Samstad (Chapter, 2018)Interpretation of Cone Penetration Tests (CPTU) in intermediate soils is complex due to partially drained conditions during penetration. In order to gain more insight into the material behavior of silt during a CPTU, an ... -
Effect of Strength Anisotropy on the Stability of Natural Slopes
Aamodt, Magnus T; Grimstad, Gustav; Nordal, Steinar (Journal article; Peer reviewed, 2021)It is well known that low plasticity soft clays have large variations in undrained shear strength with the direction of loading. Laboratory experiments show typically a cross anisotropic behavior, where the undrained shear ... -
Effect of Testing Temperature on Stiffness, Strength and Apparent Sample Disturbance in Quick Clay Samples from NGTS Quick Clay Site Flotten
Almås, Oddvar Lein (Master thesis, 2018)The effect of temperature on laboratory measurements of soil strength and stiffness has occasionally been revisited as a research topic since the 1960 s. Previous studies indicate that both preconsolidation pressure and ... -
Effective Stress based Model for Natural Soft Clays incorporating Restructuration
Bjerre, Jesper; Rønningen, Jon Abusland; Grimstad, Gustav; Nordal, Steinar (Chapter, 2018)Several advanced constitutive models have been developed over the last decades to reproduce the mechanical response of natural soft clays observed during laboratory testing and in the field. Features such as anisotropy, ... -
Effective stress models for soft Scandinavian clays
Rønningen, Jon A. (Doctoral theses at NTNU;2019:329, Doctoral thesis, 2019)The modelling of soft Scandinavian clays requires an effective stress based approach, if a complete stress response is to be provided for different loading conditions. Although, the observed behavior is complex, it is seen ... -
Effectiveness of resistivity cone penetration tests in salt-treated highly sensitive clay
Helle, Tonje Eide; Long, Michael; Nordal, Steinar; Aagaard, Per (Journal article, 2017)Salt wells filled with potassium chloride may be used as landslide mitigation in highly sensitive quick clays, as the changed pore-water composition permanently improves the remoulded shear strength. To verify improvements, ... -
Effects of Drilling for Tieback Anchors on Surrounding Ground: Results from Field Tests
Lande, Einar John; Karlsrud, Kjell; Langford, Jenny; Nordal, Steinar (Peer reviewed; Journal article, 2020)A full-scale field test program was carried out to investigate the effects of drilling for tieback anchors on the surrounding ground. The test anchors were drilled from the ground surface through a soft clay deposit and ... -
Effekt av anisotropi på udrenert skjærstyrke i naturlige skråninger
Isachsen, Marit (Master thesis, 2012)Anisotropi har stor innvirkning på den udrenerte skjærstyrken i leire. I dag er NGI-ADP modellen implementert i elementmetodeprogrammet Plaxis, men modellen tar kun hensyn til anisotropi på deviatoriske spenninger, og egner ... -
Effekt av vibrasjoner generert ved pelearbeider: komprimeringseffekt i sand/grus
Strømme, Terje (Master thesis, 2012)Dette prosjektet tar for seg effekter av peleramming i sand. Fokuset i oppgaven er effektene av vibrasjonene og eventuelle komprimeringer de medfører. Studiet har hatt størst fokus på selve vibrasjonene og i noe mindre ... -
Effekten av hurtig vannsenking på løsmasseskråninger
Normann, Kristin Grinna (Master thesis, 2021)Hurtig vannsenking forekommer ofte i reservoarer og regulerte elver. Det skjer både i tilknytning til dambrudd og ved kontrollert senking av vannstanden. Dette har vist seg å føre til instabilitet i løsmasseskråninger som ... -
Entrainment of Bed Sediments by Debris Flow
Sherchan, Bigyan (Master thesis, 2016)Debris flows have proved to be a major worldwide hazard for more than 100 years owing to the destruction of lives, property and infrastructures. This occurrence of debris flows is likely to increase in the future due to ...