Document: NUREG-0800
Document ID: 500d6b1d-6d0c-45db-abba-a953c0faa92a
Document Type: srp
Title: STABILITY OF SUBSURFACE MATERIALS AND FOUNDATIONS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1006/ML100610449.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.4
CFR Part: 
CFR Title: 

Content:
ond or river with a dam) and the associated canals and conduits connecting sources of water to the nuclear power plant. The earthworks, consisting of the dams and canals, must be constructed in such a way as to ensure that the integrity of the cooling water system will be maintained and that its safety function will be accomplished. Meeting the requirements of GDC 44 provides assurance that engineered safety features will not fail to operate as designed, thereby protecting the plant against loss of core cooling. Compliance with Appendix B to 10 CFR Part 50 requires that an applicant establish and maintain a quality assurance program. SRP Section 2.5.4 describes staff positions specifically related to the design, testing, and documentation of procedures for the qualification of subsurface materials and earthworks important to safety. Subsection 2.5.4.5 describes guidance acceptable to the staff for providing data on excavation, backfill, and earthwork analyses. Subsection 2.5.4.12 requires that the applicant discuss techniques to improve subsurface conditions and describe the methods of quality control for all techniques to be used toward that end. Meeting the requirements of Appendix B to 10 CFR Part 50 provides assurance (a) that the static and seismic qualification of subsurface materials and earthworks important to safety will be performed in accordance with established criteria and standards; (b) that the resulting designs, tests, and records will comply with established standards; and (c) that subsurface materials and earthworks will perform as required. Compliance with Appendix S to 10 CFR Part 50 requires that nuclear power plant SSCs important to safety be designed to be able to withstand the effects of natural phenomena, such as earthquakes, without loss of capability to perform their safety functions. SRP Section 2.5.4 describes guidance acceptable to the staff for determining soil and rock engineering properties as well as the dynamic stability, including