2017:31 SSM’s external experts’ review of SKB’s safety assessment SR-PSU – rock engineering and concrete barriers

Main review phase


The Swedish Radiation Safety Authority (SSM) received an application for 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 government 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.

Present report compiles results from SSM’s external experts’ reviews of SR-PSU during the main review phase. The general objective of these reviews has been to give support to SSM’s assessment of the license application. More specifically, the instructions to the external experts have been to make an in depth assessment of the specific issues defined for the different disciplines.

Table of Contents

  1. Review of the evolution of the mechanical stability and hydraulic conductivity around the rock vaults of SFR Erik Eberhardt and Mark Diederichs
  2. Review of the hydraulic conductivity, sorption, and mechanical properties of concrete barriers of SFR Biswajit Dasgupta