Document: NUREG-0800
Document ID: 6b491ea9-a58b-4a6b-9697-23d3734295d2
Document Type: srp
Title: Techniques to Improve Subsurface Conditions.  In meeting the requirements
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070730598.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.4.12
CFR Part: 
CFR Title: 

Content:
to safety. Meeting these requirements provides assurance that plant structures, systems, and components important to safety will be designed to withstand appropriately severe static and dynamic loads on the foundations. Compliance with GDC 1 requires that structures, systems, and components be tested in accordance with quality standards commensurate with the importance of their safety functions, that test standards be applicable and sufficient, and that appropriate records maintained. SRP Section 2.5.4 describes staff positions related to static and dynamic test and evaluation programs for soil and rock foundations of structures important to safety. This SRP section describes acceptable programs and laboratory test practices for such subsurface investigations. Regulatory Guides 1.132 and 1.138 describe acceptable static and dynamic test (and/or evaluation) qualification criteria, including requirements for documentation, for soil and rock foundations at nuclear power plants. Meeting the requirements of GDC 1 provides assurance that the foundation characteristics of the proposed nuclear power plant will be accurately determined and that the design of its foundations and earthworks will meet the required quality standards. Compliance with GDC 2 requires that the structures, systems, and components important to safety be designed to withstand the effects of natural phenomena such as earthquakes, tornadoes, hurricanes, floods, tsunamis, and seiches without loss of capability to perform their intended safety functions. SRP Section 2.5.4 describes staff positions related to site investigations (as well as soil and rock testing and analyses) for determining soil and rock properties and characteristics needed in the analysis and design of foundations and earthworks for the proposed nuclear power plant. Analyses are performed to evaluate the responses of soil and rock foundations and embankments to seismic and dynamic loading for interaction between soils and structures as