Reducing Uncertainty in the Seismic Design Basis for the Waste Treatment Plant, Hanford, Washington
The seismic design basis for the Waste Treatment Plant (WTP) at the Department of Energy’s (DOE) Hanford Site near Richland was re-evaluated in 2005, resulting in an increase by up to 40% in the seismic design basis. The original seismic design basis for the WTP was established in 1999 based on a probabilistic seismic hazard analysis completed in 1996. The 2005 analysis was performed to address questions raised by the Defense Nuclear Facilities Safety Board (DNFSB) about the assumptions used in developing the original seismic criteria and adequacy of the site geotechnical surveys. The updated seismic response analysis used existing and newly acquired seismic velocity data, statistical analysis, expert elicitation, and ground motion simulation to develop interim design ground motion response spectra which enveloped the remaining uncertainties. The uncertainties in these response spectra were enveloped at approximately the 84th percentile to produce conservative design spectra, which contributed significantly to the increase in the seismic design basis.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 960319
- Report Number(s):
- PNNL-SA-53948; 830403000; TRN: US0904371
- Resource Relation:
- Conference: Waste Management 2007: Proceedings of the Symposium on Waste Management
- Country of Publication:
- United States
- Language:
- English
Similar Records
Site-Specific Seismic Site Response Model for the Waste Treatment Plant, Hanford, Washington
Technical Basis for Certification of Seismic Design Criteria for the Waste Treatment Plant, Hanford, Washington