Sök

Din avgränsning ger 81 träffar.

• 2011:13 Investigation of Discrete-Fracture Network Conceptual Model Uncertainty at Forsmark

  Flow modelling using alternative assumptions regarding conceptual and parametric uncertainty in the spatial and structural relationships among fractures indicates elevated flow rates and groundwater velocities to deposition holes compared to SKB’s flow modelling results. Simulated sampling of fractures in boreholes does not indicate any reason to exclude the proposed spatial and structural...

  Innehållstyp: Publikationer

• 2000:13 Utvärdering av omgivningskontrollprogrammet vid kärnkraftverken och Studsvik

  De kärntekniska anläggningarna utför årligen omgivningskontroll i närområdet enligt ett program utarbetat av SSI. En mer omfattande utvärdering av programmet har genomförts baserat på närmare 20 års erfarenheter och mätdata. Resultaten visar att i den terrestra miljön detekteras de högsta halterna och det största antalet...

  Innehållstyp: Publikationer

• 2024:19 Finansiering av en minnesinstitution efter förslutning av slutförvar för använt kärnavfall

  SSM perspektiv Bakgrund och syfte En central princip för dagens finansieringssystem för omhändertagandet av kärnämne och övrigt radioaktivt avfall som uppkommit vid drift och avveckling av kärnkraftverk är producentansvarsprincipen1. Ett finansieringssystem som grundas på en avgift per levererad kilowattimme till den s.k. Kärnavfallsfonden. I tillägg...

  Innehållstyp: Publikationer

• 2017:18 FEM analysis of the mechanical integrity for the canister intended for storage of spent nuclear fuel with regard to copper creep ductility

  Background For final storage of spent nuclear fuel it is suggested by the Swedish nuclear fuel and waste management company (SKB) to emplace the nuclear fuel into copper canisters which are surrounded by bentonite clay at approximately 500 meters’ depth into granitic rock. After emplacement of the canisters Bentonite swelling due to water saturation and hydrostatic pressure build up the...

  Innehållstyp: Publikationer

• 2017:02 Slow strain rate testing of copper in sulfide rich chloride containing deoxygenated water at 90 °C

  Background Stress corrosion cracking (SCC) can occur in materials from the combined influence of tensile stress and a corrosive environment. It has previously been shown in the literature, that copper can be sensitive to SCC in the presence of sulfide containing water. Since both tensile...

  Innehållstyp: Publikationer

• 2009:21 The geological history of the Baltic Sea a review of the literature and investigation tools

  The bedrock in Sweden mainly comprises Proterozoic magmatic and metamorphic rocks older than a billion or one and a half billion years with few easily distinguished testimonies for the younger history. For construction of a geological repository for deposition of nuclear waste it is important to understand the late, brittle, geological events to be able to estimate its influence and...

  Innehållstyp: Publikationer

• 2016:01 Literature Study on Sparse Channel Interpretation and Modeling

  Channelling has been observed in laboratory and field experiments at various scales. However, it is still an open research issue whether a sparse channel network is likely to be a better model than the fracture network model for representing the flow system in fractured rocks. The present report presents a literature study to bring together information useful for addressing this issue.

  Innehållstyp: Publikationer

• 2018:15 Review of Geochemical Data Utilisation in SR-Site Safety Assessment

  The Swedish Radiation Safety Authority (SSM) reviews and follows associated research related to the Swedish Nuclear Fuel Company’s (SKB) work with establishing a repository for spent nuclear fuel and an encapsulation facility.

  Innehållstyp: Publikationer

• 2012:11 Issues in the corrosion of copper in a Swedish high level nuclear waste repository

  The objective with this research project was to increase knowledge in the area of copper corrosion in the planned repository environment and obtain information on how copper corrosion evolves during the assessment period of 100 000 years. The equilibrium chemical composition of groundwater close to the canister as a function of temperature has been calculated by use of a thermodynamics code...

  Innehållstyp: Publikationer

• 2010:32 Fingerprints of zones in boreholes An approach to identify the characteristics of structures

  This report concerns a study which was initially conducted for the Swedish Nuclear Power Inspectorate (SKI), which is now merged into the Swedish Radiation Safety Authority (SSM). The conclusions and viewpoints presented in the report are those of the authors and do not necessarily coincide with those of the SSM. The Swedish Nuclear Fuel and Waste Management Co (SKB) has published Site...

  Innehållstyp: Publikationer