Risk Assessment Methodology Development for Waste Isolation in Geologic Media: Technical Review of NUREG/CR-1636, Volume 4; NUREG/CR-2324 and NUREG/CR-2343.

摘要

This project is an ongoing independent technical review of products prepared for the NRC by Sandia National Laboratories on the Risk Assessment Methodology Development for Waste Isolation in Geologic Media program. This report contains a review of three documents. They are NUREG/CR-1634, Vol. 4, concerned with the effects of variable hydrology on waste migration; NUREG/CR-2324, a user's manual for SWIFT; and NUREG/CR-2343, a user's manual for DNET. In general, these reports exhibit high technical quality that characterizes the SNL work. The emphasis is on the mathematical procedures rather than the repository physics, leaving the adequacy of the results presented in many computer plots, pretty much to the interpretation of the reader. Other general comments have been presented previously, such as the data conservatisms, need for data that cannot be measured without disturbing the geometry, and the overall plan for use of the many codes developed in the program.