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Techniques and equipment for assessing the structural integrity of subterranean tower anchor rods

United States Patent

November 6, 2001
View the Complete Patent at the US Patent & Trademark Office
Savannah River National Laboratory - Visit the Technology Transfer Website
Techniques and equipment for evaluating structural integrity of buried anchor rods in situ are disclosed. The techniques avoid excavation of soil and avoid, or at least reduce, the possibility of damage to the rods or the concrete in which they may be embedded when evaluations are conducted. Instead, ultrasonic energy is transmitted through the rod from a portable transducer, and returned energy (in either or both of direct and mode-converted states) may be analyzed to assist in detecting flaws, corrosion, wastage, or other degradation of the rod. Data from a field evaluation may be compared with baseline data maintained either for a specific rod or for rods of similar composition and length (or both), and periodic field evaluations of a rod may be used to analyze trends in its structure over time.
Hinz; William R. (Martinez, GA), Parker; Matthew J. (Martinez, GA)
Westinghouse Savannah River Company (Aiken, SC)
09/ 228,336
January 11, 1999
GOVERNMENT RIGHTS STATEMENT The U.S. government has rights in this invention pursuant to contract number DE-AC09-96SR18500 between the U.S. Department of Energy and Westinghouse Savannah River Company.