Din avgränsning ger 10 träffar.
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2014:12 Granskning och utvärdering av SKB:sredovisning av Fud-program 2013
Enligt förordningen (1984:14) om kärnteknisk verksamhet (kärnteknikförordningen) ska Strålsäkerhetsmyndigheten (SSM) granska och utvärdera det ... reaktorinnehavarna tagit fram Fudprogram 2013 och i enlighet med kärnteknikförordningen lämnat det till myndigheten i september 2013. SSM har granskat och utvärderat Fud-program 2013 i fråga om planerad forsknings- och...
Innehållstyp: Publikationer -
2014:59 Technical Note, Relation between earthquake magnitude, fracture length and fracture shear displacement in the KBS-3 repository at Forsmark – Main Review Phase
This study addresses one of several scenarios that could impair the physical integrity of the repository of spent nuclear fuel at the Forsmark site. Two sources of threat are: i) events ... Forsmark site. Two sources of threat are: i) events due to thermal loading on the rock mass by the heat from canisters with spent nuclear fuel, and ii) seismic events, i.e. earthquakes, at the nearby deformation...
Innehållstyp: Publikationer -
2014:55 Technical Note, Further Reproduction of SKB’s Calculation Cases and Independent
illustrerar kapseln och buffertens säkerhetsfunktioner. I var och en av de fem beräkningsfallen är delar av kapsel och/eller buffert frånvarande i modellen av slutförvarssystemet. Modellresultaten jämförs ... beräkningsfall och resultaten har granskats, för att ge SSM ett oberoende perspektiv på den roll som barriärerna i närområdet kan tillhandahålla för säkerheten. Analysen innebar användning av SKB:s underlag för att...
Innehållstyp: Publikationer -
2014:07 Technical Note, Review of the geological mapping and geophysical measurement techniques for the determination of critical properties around deposition holes -Main Review Phase
This Technical Note reports the findings of a detailed evaluation of the geological and geophysical methods proposed by SKB with respect to their ability, resolution, performance, reliability ... high water inflows that may lead to piping and erosion of the buffer material. Also addressed are: i) the feasibility of measuring the excavation damage zone (EDZ) around the deposition tunnels and deposition...
Innehållstyp: Publikationer -
2014:33 Technical Note, Reproduction of SKB’s Canister Failure Calculations - What-If and ‘Residual’ Scenario to Illustrate Barrier Functions
The Swedish Nuclear Fuel and Waste Management Company (SKB) included analysis of a range of scenarios in its SR-Site report. SKB grouped these scenarios into two categories—main ... reference cases and selected what-if scenario cases. The what-if scenario cases we considered include (i) corrosion scenario with initial advection, (ii) corrosion scenario with faster spent nuclear fuel (SNF)...
Innehållstyp: Publikationer -
2014:29 Technical Note, Independent Modelling of Radionuclide Transport, Evaluation of Colloid Transport Modelling – Main Review Phase
SKB excludes consideration of colloids originating inside the canister in its performance assessment on the basis of the filtration capability of the buffer material. In the canister failure ... case. Modelling radionuclide attachment to clay colloids as reversible linear equilibrium sorption (i.e., using a Kd distribution factor approach) is reasonable and well supported. Nonetheless, in this...
Innehållstyp: Publikationer -
2014:10 Technical Note, Rock Mechanics - Confidence of SKB’s models for predicting the occurrence of spalling – Main Review Phase
This review study is placed in the context of SSM’s Main Review Phase for SKB’s safety assessment SR-Site. The assignment is titled “Rock Mechanics – Confidence of SKB’s models for predicting ... proposed by SKB (referred to as “most likely”) is unlikely from a structural-geomechanical perspective, i.e. it is inconsistent with strength parameters of the rock mass provided by SKB; however, SKB’s model...
Innehållstyp: Publikationer -
2014:58 Technical Note, Rock Mechanics - Assessing probability and extent of blind faults and fault-end growth around the KBS-3 repository at Forsmark – Main Review Phase
To get a general understanding of the stability conditions of the fault and deformation zone inventory at Forsmark a reactivation potential analysis was carried out. At present-day stress conditions ... analysis of geological system behaviour. Simulation of the influence of the thermal phase showed that i) sub-vertical deformation zones parallel to the repository contour are stabilised, ii) sub-vertical...
Innehållstyp: Publikationer -
2014:43 Technical Note, Workshop on general corrosion of copper
This report describes the outcome of the workshop organized by SSM on general corrosion of copper that was held in Stockholm on the 26-27th of August, 2013. The report summarizes the issues discussed ... factors, most notably from the assumed application of criteria for the rejection of deposition-holes (i.e., rejecting holes with high groundwater inflow rates from fractures). Low erosion rates would be...
Innehållstyp: Publikationer -
2014:38 Technical Note, Detailed assessment of radionuclide Kd-values for the geosphere-main review phase
The Swedish Radiation Safety Authority (SSM) is reviewing an application submitted by the Swedish Nuclear Fuel and Waste Management Company (SKB) in 2011 to construct and operate a deep geologic ... potential concerns regarding the development of Kd values and recommended additional work such as (i) conducting a detailed examination of how sorption experimental data have been transferred through the...
Innehållstyp: Publikationer
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