Document: NUREG-0800
Document ID: ce3522a1-5c42-492a-95d7-9087534cf63c
Document Type: srp
Title: STABILITY OF SLOPES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070270.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.5
CFR Part: 
CFR Title: 

Content:
osed by a slope failure and other than clearly 2.5.5-11 DRAFT Rev. 3 - April 1996 conservative soil properties and profiles were used, the applicant is required to obtain additional data to verify his assumptions, or to show that, even if the worst possible conditions are assumed, there is an adequate margin of safety. With respect to seismic analysis, this subsection and subsection 2.5.5.2 are reviewed concurrently because different methods of analysis may involve different approximations, assumptions, and soil properties. In addition to generic state-of-the-art literature, other potential sources of information are those containing design, construction, and performance records of natural slopes, excavation slopes, and dams that may have been constructed in the general vicinity of the nuclear power plant. Examples of such documents are design memoranda and construction reports regarding nearby projects of public agencies such as the U.S. Army Corps of Engineers, the Tennessee Valley Authority, the U.S. Bureau of Reclamation, and private construction contractors or architect-engineers. Subsection 2.5.5.2. The criteria, design techniques, and analyses are evaluated by the staff to ascertain that: 1. Appropriate state-of-the-art methods have been employed. 2. Conservative assumptions regarding soil and rock properties have been used in the design and analysis of slopes and embankments as discussed above in subsection 2.5.5.1. 3. Appropriately conservative margins of safety have been incorporated in the design. The criteria and design methods used by the applicant are reviewed to ascertain that state-of-the-art techniques are being employed. The design analyses are reviewed to be sure that the most conservative failure approach has been used and that all adverse conditions to which the slope might be subjected have been considered. Such conditions include ground motions from the safe shutdown earthquake, settlement, cracking, flood or low-water steady-state seepage,