Seismic Analysis of Hanford Waste Tanks

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Seismic Analysis of Hanford Waste Tanks

Technology Category: Seismic Engineering

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Description: Pacific Northwest National Laboratory (PNNL) investigated the potential for earthquake induced gas release from the Hanford waste tanks. Gas bubble release occurs when large strains are imposed on the sludge-like waste. A 23 second displacement time history representing the 1,000 year design basis earthquake was applied to an ANSYS finite element model of a typical tank and waste configuration. Separate criteria based on strain and strain energy were employed to predict gas release.

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