Din avgränsning ger 189 träffar.
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2011:22 Infiltration of dilute groundwaters and resulting groundwater compositions at repository depth
disposal of spent nuclear fuel includes copper canisters placed in deposition holes at about 500 m depth in granitic bedrock. The copper canisters will be surrounded by bentonite buffer with the objective ... objective of inhibiting groundwater flow adjacent to the canister. It has been discovered that dilute glacial melt-water may induce erosion of the buffer material. A very dilute groundwater chemical condition...
Innehållstyp: Publikationer -
2014:47 Technical Note, Assessment of groundwater salinity evolution at repository depth and especially the impact of dilute water infiltration
entering deposition holes in the repository will be progressively diluted over time because of expected changes of topographic and climatic conditions at Forsmark. This is a long-term safety issue because ... advective movement of sulphide-containing water to the canister surface. SKB’s position in SR-Site is that the hydrogeological properties of the sparsely-fractured bedrock and the processes of water-rock reaction...
Innehållstyp: Publikationer -
2012:60 Technical Note, Handling of climate related issues in the safety assessment SR-Site
based on research carried out over several decades and is an impressive compilation of data and knowledge of the site of Forsmark. The sections on climate, glaciations and permafrost have developed continuously ... some remarks on the way the process is described in the proposal. It is unclear how new research findings can enter and influence the decision process. In addition the background data is difficult to find...
Innehållstyp: Publikationer -
2012:67 Technical Note, Hydrogeological modelling of the Forsmark site
A modelling study has been conducted using discrete-fracture network (DFN) models in combination with discrete-feature hydrogeological modelling methods for representation of other potentially conductive ... results consist of hydraulic and transport property estimates for discrete-fracture network (DFN) models on block scales of 50 m and 100 m, including blocks containing representative segments of deposition...
Innehållstyp: Publikationer -
2012:71 Identification of Brittle Deformation Zones and Weakness Zones
In preparation for the review of Swedish Nuclear Fuel and Waste Management Company’s (SKB) license application for disposal of spent nuclear fuel, Swedish Radiation Safety Authority (SSM) is conducting ... performance of the multi-barrier principle on which the KBS-3 concept is based. Copper canisters containing the spent nuclear fuel are placed into granitic bedrock at about 500 m depth and embedded in bentonite...
Innehållstyp: Publikationer -
2013:27 Numerical simulations of headed anchors break in reinforced and non-reinforced concrete structures
codes for anchorage of equipment in concrete structures have been developed since the time the Swedish power plants were designed. Furthermore, the design basis has been updated and in some cases new mechanical ... been added. As a consequence, it can be difficult for some anchorages to meet the requirements of today. In the design of anchorage equipment the beneficial effect of reinforcement was, in most cases, not...
Innehållstyp: Publikationer -
2019:16 SSM’s external experts’ reviews of SKB’s safety assessment SR-PSU
the expansion of SKB’s final repository for low and intermediate level waste at Forsmark (SFR) on the 19 December 2014. SSM is tasked with the review of the application and will issue a statement to the ... who will decide on the matter. An important part of the application is SKB’s assessment of the long-term safety of the repository, which is documented in the safety analysis named SR-PSU. The present report...
Innehållstyp: Publikationer -
2015:47 GEMA-Site 1: Model description and example application
Background In 2011 the Swedish Nuclear Fuel and Waste Management Company (SKB) submitted an assessment of the long-term safety of a KBS-3 geological disposal facility for spent nuclear fuel in Forsmark, ... application of SKB to build such a final disposal facility. The biosphere dose assessment carried out as part of SR-Site features a highly detailed model of the evolution of the landscape in Forsmark area...
Innehållstyp: Publikationer -
2014:05 Technical Note, Assessment of flows to deposition holes – Main Review Phase
Forsmark is based on a division between highly fractured deformation zones (described in terms of deterministic geometry), and the more sparsely fractured rock (described in terms of statistical geometry) ... underestimation of groundwater flux through the repository volume. However, the impact of these assumptions on flows to deposition holes is judged to be minor, compared with uncertainties in the model for...
Innehållstyp: Publikationer -
2014:11 Technical Note, Radionuclide Solubility Limits in SKB’s Safety Case
reviewing a license application, which has been submitted by Svensk Kärnbränslehantering AB (SKB), for a spent nuclear fuel repository at Forsmark. This technical note records the findings from a project ... part of the main phase of SSM’s license application review. The project involved review of reports and independent modelling studies on issues related to the potential solubility of radionuclides in waters...
Innehållstyp: Publikationer