Alternative Inspection Methods for Single Shell Tanks

Peters, Timothy J. ; Alzheimer, James M. ; Hurley, David E.

关键词: AR FACILITIES;    HANFORD RESERVATION;    STORAGE FACILITIES;    TANKS;    NONDESTRUCTIVE TESTING;    CRACKS;    DEFORMATION;    DETECTION;    REMOTE VIEWING EQUIPMENT;    RADIOACTIVE WASTE STORAGE single she;   

DOI  :  10.2172/989034
RP-ID  :  PNNL-19113
PID  :  OSTI ID: 989034
Others  :  Other: EY4049110
Others  :  TRN: US1007440

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

This document was prepared to provide evaluations and recommendations regarding nondestructive evaluation methods that might be used to determine cracks and bowing in the ceiling of waste storage tanks on the Hanford site. The goal was to determine cracks as small as 1/16 in. wide in the ceiling, and bowing as small as 0.25 in. This report describes digital video camera methods that can be used to detect a crack in the ceiling of the dome, and methods for determining the surface topography of the ceiling in the waste storage tanks to detect localized movements in the surface. A literature search, combined with laboratory testing, comprised this study.