Document: NUREG-0800
Document ID: 0a8ea59e-ab3a-4182-b590-5dd06be705bb
Document Type: srp
Title: Seismic Wave Transmission Characteristics of the Site.  To meet the
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1230/ML12301A010.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.2.5
CFR Part: 
CFR Title: 

Content:
-linear analysis or nonlinear analysis may be appropriate and is reviewed in conjunction with geotechnical and structural engineering. However, site characteristics (such as a dipping bedrock surface, topographic effects or other impedance boundaries) may require that analyses are also able to account for inclined waves. During COL reviews, DCD parameters regarding subsurface homogeneity should be compared with the site characteristics to verify that the COL application’s site parameters are appropriate for use as set forth in the DCD. The staff will review the ground motions developed for each of the controlling earthquakes. RG 1.132 and RG 4.7 contain a database of recorded time histories on rock for both CEUS and WUS. The staff will also review the simulation method (such as Monte Carlo) used to incorporate the variability in soil depth, shear wave velocities, layer thicknesses, and strain-dependent dynamic nonlinear material properties at the site. A sufficient number of simulations should be performed (at least 60) in order to define the mean and the standard deviation of the site response. 2.5.2-13 Draft Revision 5 – 2013 6.