Study of the retrievability of radioactive waste from a deep underground disposal facility

In the reporting period the main activities have been the detailed set-up of a planning for the underground facilities. This planning has been produced in such a manner that modification in the underground facilities can easily be incorporated. The basic planning has been set up as a series of computer spread sheets which break down the construction of the mine into elementary cost- and activity centres. The principles, assumptions and models which underlay these planning are given, and a selection and evaluation of the retrieval method has been performed. (orig.)