Canister Storage Building Receiving Pit Modification Informal Design Verification.

摘要

The design for modifications to the CSB Cask Receiving pit guides was verified by the informal design verification (meeting) method on August 9, 2000. The invited list of attendees and the meeting attendance sheet are included in attachment 1. The design modifications that were reviewed are documented in ECN 654484 (attachment 2). The requirement that the design is to be verified against is to center the transportation cask sufficiently to allow installation of the guide funnel on the cask (+A 0.25 inches or less). The alternatives considered are detailed in the attachment 3. Alternative number 4, 'Modify The Pit Guides', was determined to be the preferred alternative primarily due to considerations of simplicity, reliability, and low cost. Alternative 1, 'Rotate the impact Absorber 180' was successfully performed but was considered a temporary fix that was not acceptable for a long term operational mode.