Document: NUREG-0800
Document ID: 6c4e90a1-231b-4f1d-be6f-560fb1f5b7bd
Document Type: srp
Title: ANALYSIS PROCEDURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070570003.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.4.2
CFR Part: 
CFR Title: 

Content:
s, analytical techniques, and procedural measures proposed for its facility and the SRP acceptance criteria and evaluate how the proposed alternatives to the SRP acceptance criteria provide acceptable methods of compliance with the NRC regulations The design of a structure that must withstand the effects of the highest flood and groundwater levels is acceptable if the relevant requirements of GDC 2, "Design Bases for Protection Against Natural Phenomena," are complied with. The criteria necessary to meet the relevant requirements of GDC 2 are as follows: 1. The highest flood and groundwater levels and the associated static and dynamic effects, if any, used in the design shall be the most severe ones that have been historically reported for the site and surrounding area, with sufficient margin for the limited accuracy, quantity, and period of time in which the historical data have been accumulated. 2. In most situations, the highest flood level is below the proposed plant grade and only its hydrostatic effects need be considered. Unless the hydrostatic head associated with the highest flood and groundwater levels is relieved by utilizing a drainage or a pumping system around the foundations of a structures, hydrostatic pressure has to be considered as a structural load on basement walls and the foundation slab of a structure. In consideration of any uplifting or floating of a structure, the total buoyancy force may be based on the highest flood level or the highest groundwater level excluding wave action. However, wave action should be included in the calculation for lateral and overturning movements of a structure. 3.4.2-4 Revision 3 - March 2007 3. Where the flood level is above the proposed plant grade, the dynamic loads of wave action should be considered. Procedures for determining such dynamic loads are acceptable if they are in accordance with or equivalent to those delineated in the U.S. Army Coastal Engineering Research Center, “Shore Protection Manual”