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Title: Microgravity survey of Wilson Dam Power Plant switchyards, Florence, Alabama
Authors: Tennessee Valley Authority.
Butler, Dwain K.
Yule, Donald E.
Keywords: Cavities
Geophysical survey
Wilson Dam
Tennessee River
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-84-2.
Description: Miscellaneous Paper
Abstract: Results of a microgravity survey at Wilson Dam Power Plant Switchyard, Florence, Alabama, are presented. The survey consisted of 288 gravity stations, with approximately 25% of the stations reoccupied during the survey. Objectives of the survey were to detect any anomalous zones in the switchyard foundation which might be indicative of shallow cavities. At least 75% of the downstream switchyard area has no significant gravity anomalies. In the remaining area, several gravity anomalies are identified which could be indicative of subsurface cavities. If the anomalies are due to cavities, the probable depth range is 5 to 18 ft to the center of the feature. Most of the switchyard structures are in the area free from significant anomalies.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Miscellaneous Paper

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