Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/10121
Title: Liquefaction analysis for LaCross Nuclear Power Station
Authors: U.S. Nuclear Regulatory Commission.
Marcuson, William F. (William Frederick)
Bieganousky, Wayne A.
Keywords: Soil liquefaction
Nuclear power plant
Pile foundations
Soil mechanics
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-79-11.
Description: Miscellaneous Paper
Abstract: The liquefaction potential of the LaCross site was evaluated for two earthquakes; namely, a safe shutdown earthquake (SSE) with a peak acceleration at the ground surface of 0.12 g, and an SSE with a peak acceleration at the ground surface of 0.2 g. The analysis was made by two methods: the Seed-Idriss Simplified Procedure and an empirical procedure. For a peak acceleration of 0.12 g, liquefaction is predicted by the Seed-Idriss calculations between a depth of 32 and 48 ft, and liquefaction is predicted by the empirical method between a depth of 24 and 35 ft. Assuming a peak acceleration of 0.2 g, the Seed-Idriss Simplified Procedure predicts liquefaction below a depth of 25 ft. The empirical method predicts liquefactions between a depth of 25 and 60 ft and between a depth of 85 and 115 ft. The soils below the reactor at the LaCross site are predicted to strain badly, if an SSE which produces 0.12 gat the ground surface occurs; and are predicted to experience excessive strains and liquefaction if the SSE with a peak acceleration of 0.2 g occurs. Because of the limitations in the current state of knowledge concerning liquefaction and because of the limited data for use in this analysis , WES cannot conclude that the reactor vessel foundation is safe if the 0.12 g SSE occurs and concludes that the reactor vessel foundation is unsafe if the 0.2 g SSE occurs.
Rights: Approved for public release; distribution is unlimited.
URI: http://hdl.handle.net/11681/10121
Appears in Collections:Miscellaneous Paper

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