Site-Specific Earthquake Response Analysis for Portsmouth Gaseous Diffusion Plant, Portsmouth, Ohio
Abstract
A site response analysis has been conducted for the DOE Portsmouth Gaseous Diffusion Plant (PGDP) located south of Portsmouth. Synthetic earthquake records corresponding to three return periods were provided. Geotechnical and seismic geophysical data were collected from previous investigations conducted for the proposed plant additions and used to create fifteen individual soil columns and one average column. The soils primarily consist of lacustrine deposits of silt and clay overlying alluvial deposits. Fifteen soil columns were created with a range of total soil thickness from 20 to 61 ft and all material types represented. The shear wave velocities for soil range from 280 fps near the ground surface to 2545 fps but generally are between 500 and 1 100 fps. The results of 1-D calculations using SHAKE indicate that ground motions will be amplified at site periods between 0.02 and 2 sec. Natural site periods range from 0.1 to 0.3 sec. The peak free field accelerations are. 0.12, 0.17, and 0.36 g for the 500-, 1000-, and 5000-year events, respectively. A sensitivity analysis of various inputs was also conducted. Earthquake engineering, Soil amplification, wave propagation, Site response, Vibration.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1993
- Accession Number
- ADA269947
Entities
People
- David W. Sykora
- Jennifer J. Davis