Location
San Diego, California
Presentation Date
29 May 2010, 8:00 am - 9:30 am
Abstract
A coal-fired power plant, Plum Point Energy Station, is being built in the city of Osceola, Arkansas, which is located in the New Madrid Seismic Zone (NMSZ). The project site is characterized as Site Class F, according to ASCE-7-05, because the soils at the site are prone to liquefaction. The depth of soil to rock is approximately 1 kilometer (km). A site-specific response study was required by the building code to determine the uniform hazard spectrum at the ground surface. The site-specific study included a probabilistic seismic hazard assessment to determine the Maximum Considered Earthquake (MCE) spectrum at an equivalent rock outcrop and a one-dimensional site response analysis to determine the ground surface response, given the rock outcrop motions. Spectral matching was used to generate the MCE ground motions at the rock outcrop. The equivalent linear site response code, SHAKE, and two nonlinear site response codes, SUMDES and DEEPSOIL, were used to generate the ground surface acceleration histories. The mechanical properties of the soils in the column were varied to assess the impact of changes in soil properties on free-field response. The function of the equivalent linear and nonlinear site response codes was identified. The amplification of the rock motion to the free field is discussed herein in terms of the site class factors presented in ASCE-7-05.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2010 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Zheng, Wei; Hashash, Youssef; Petersen, Mark M.; and Whittaker, Andrew S., "Site-Specific Response Analysis in the New Madrid Seismic Zone" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 13.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session03b/13
Included in
Site-Specific Response Analysis in the New Madrid Seismic Zone
San Diego, California
A coal-fired power plant, Plum Point Energy Station, is being built in the city of Osceola, Arkansas, which is located in the New Madrid Seismic Zone (NMSZ). The project site is characterized as Site Class F, according to ASCE-7-05, because the soils at the site are prone to liquefaction. The depth of soil to rock is approximately 1 kilometer (km). A site-specific response study was required by the building code to determine the uniform hazard spectrum at the ground surface. The site-specific study included a probabilistic seismic hazard assessment to determine the Maximum Considered Earthquake (MCE) spectrum at an equivalent rock outcrop and a one-dimensional site response analysis to determine the ground surface response, given the rock outcrop motions. Spectral matching was used to generate the MCE ground motions at the rock outcrop. The equivalent linear site response code, SHAKE, and two nonlinear site response codes, SUMDES and DEEPSOIL, were used to generate the ground surface acceleration histories. The mechanical properties of the soils in the column were varied to assess the impact of changes in soil properties on free-field response. The function of the equivalent linear and nonlinear site response codes was identified. The amplification of the rock motion to the free field is discussed herein in terms of the site class factors presented in ASCE-7-05.
