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Title: Foundation investigation of the upstream switchyard of Wilson Dam Powerplant : microgravity survey
Authors: Tennessee Valley Authority.
Yule, Donald E.
Butler, Dwain K.
Sharp, Michael K.
Keywords: Cavity detection
Foundation investigation
Geophysical investigation
Geophysical survey
Wilson Dam
Hydroelectric power plants
Publisher: Geotechnical Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; GL-90-19.
Description: Miscellaneous Paper
Abstract: A microgravity survey consisting of 347 stations was conducted in the upstream switchyard of the Wilson Dam powerplant. The objective of the survey was the detection of subsurface cavities or other anomalous conditions that could threaten the integrity of the switchyard structures. Six anomalous areas were identified on the gravity anomaly map and ranked for their interpreted significance. From these results, nine boring locations were selected to investigate the cause of the anomalies. This report presents details of the field survey, data processing interpretations, and recommended drilling locations for subsurface investigation.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Miscellaneous Paper

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