Browsing Institutt for bygg- og miljøteknikk by Document Types "Doctoral thesis"
Now showing items 121-140 of 240
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Iteratively coupled implicit dynamic MPM-FVM
(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 ... -
Laboratory investigation of frost susceptibility of crushed rock aggregates and field assessment of frost heave and frost depth
(Doctoral theses at NTNU;2020:335, Doctoral thesis, 2020)In Nordic countries that experience seasonal frost, understanding how it affects the service life of linear transport infrastructures such as roads and railways is essential. Frost action both regroup frost heave and thaw ... -
Laboratory Investigation on Development of Bitumen Exposed to Chemicals
(Doctoral theses at NTNU;2022:186, Doctoral thesis, 2022)As one of the most significant components of asphalt concrete, bitumen is crucial to the durability and lifespan of asphalt pavement. The asphalt pavement is exposed to different external conditions, such as traffic loading, ... -
Laboratory investigation on rejuvenating and self-healing properties of aged asphalt containing Ca-alginate capsules
(Doctoral theses at NTNU;2024:185, Doctoral thesis, 2024)The aging and cracking of asphalt pavement seriously affect the service life of asphalt pavement. Calcium alginate capsules have been shown to release a rejuvenator to repair cracks inside asphalt concrete under traffic ... -
Laboratory-based modelling of viscoelastic properties of asphalt pavement
(Doctoral theses at NTNU;2023:207, Doctoral thesis, 2023)The Norwegian Public Roads Administration (NPRA) is running a project “VegDim” with the aim of developing and implementing a Mechanistic-Empirical (ME) pavement design system for Norwegian conditions. The traditional ... -
Large-Scale Phase-Resolved Wave Modelling for the Norwegian Coast
(Doctoral theses at NTNU;2020:235, Doctoral thesis, 2020)The coastal Highway Route E39 aims to build a continuous road connection along the west coast of Norway. Floating bridges are planned to replace the ferries at seven major fjords along the route. These innovative floating ... -
Limitation of damage from overburden drilling for piles and tieback anchors
(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 ... -
Long-term sustainable management of the urban water and wastewater pipe networks
(Doctoral theses at NTNU;2019:101, Doctoral thesis, 2019)Water utilities around the world are facing challenges related to the delivery of safe and secure water and environmental friendly collection and handling of wastewater. One of the main components in handling of these tasks ... -
Material and slope failure in sensitive clays
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:352, Doctoral thesis, 2012)Recent and historic landslides in sensitive clays caused by an external disturbance point to the importance of understanding the acting failure processes. This includes the global slope behaviour and the local material ... -
Measurements and Modelling of Arctic Coastal Environments
(Doctoral theses at NTNU;2020:213, Doctoral thesis, 2020)The most pronounced effects of climate change are observed in the polar regions, especially in the Arctic, which is currently warming more rapidly than the rest of the world. The Arctic is losing sea ice, and the oceans ... -
Mechanical behavior of frozen saline clay: laboratory, field and numerical investigation
(Doctoral theses at NTNU;2021:314, Doctoral thesis, 2021) -
Methods to safeguard downstream migration of salmonids past hydropower structures
(Doctoral theses at NTNU;2019:104, Doctoral thesis, 2019)Sustainable development of hydropower production must include measures to reduce the negative consequences of river fragmentations. Migratory Atlantic salmon (Salmo salar, L) is one of the species that can be severely ... -
Microbial challenges in recirculating aquaculture systems (RAS) for Atlantic salmon (Salmo salar) smolt and post-smolt
(Doctoral thesis, 2021)Aquaculture is one of the fastest growing food producing sectors today. Norway is the world’s largest producer of farmed Atlantic salmon (Salmo salar), and the aquaculture industry is an important contributor to value ... -
Microstructural Investigation of Sea Ice and Imaging of Oil in Sea Ice by X-Ray micro-computed tomography
(Doctoral theses at NTNU;2022:262, Doctoral thesis, 2022)The alarming decline of sea ice extent over the last few decades has made the polar marine region and its resources more accessible to humans. This has resulted in increased shipping and mining activities in this area which ... -
Mixed Hardening Models for Frictional Soils
(Dr. ingeniøravhandling, 0809-103X; 2003:21, Doctoral thesis, 2003)A new material model mainly for frictional soil is developed and implemented in a finite element program. The model is applied to simulate a deep excavation with a supporting tie back wall. The model is based on ... -
Model testing of conepenetration in silt with numerical simulations
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:207, Doctoral thesis, 2014)Interpretation of results from CPTU testing in silty soils is very challenging and it is hard to obtain reliable design parameters. The main reason is that penetration in silts may occur under partially drained conditions. ... -
Modeling of Strain Accumulation in Clays under Cyclic Loading
(Doctoral thesis at NTNU;2015:249, Doctoral thesis, 2015)The stiffness of the soil at the foundation level plays an important role in the global stiffness of the offshore structure. Beside the static loads, the offshore foundation need also suffer cyclic loads from both wind ... -
Modelling complex rating curves with hydraulic scale models and computational fluid dynamics
(Doctoral theses at NTNU;2018:220, Doctoral thesis, 2018)The Flom-Q research project aims to revise the framework for flood-estimation methods in Norway. Accurate rating curves are important for estimating flood discharges that are crucial input for any flood assessment task. ... -
Modelling of skirted foundations for offshore wind turbines
(Doctoral theses at NTNU;2018:140, Doctoral thesis, 2018)The thesis focuses on the modelling of the response of shallow skirted foundations supporting offshore wind turbines (OWT). OWT-structures need to be optimized in design to reduce the cost of energy from offshore wind ... -
Moisture performance of thermally insulated basement walls in cold climates
(Doctoral theses at NTNU;2022:298, Doctoral thesis, 2022)Climate change entails frequent and intense events of heavy rainfall and rain-induced floods in many regions with cold climates. In addition, present solutions for stormwater management involve the infiltration of surface ...