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:
more consistent with the data and perform an independent analysis employing both deterministic and probabilistic methods as appropriate. During the operating license (OL) or COL review, all open items requiring resolution, 42 including construction data and as-built analyses, settlement records, piezometer records, and absence of seepage, that support the adequacy and safety of the design, are reviewed by the staff. Subsection 2.5.5.3. A comprehensive program of site investigations including borings, sampling, geophysical surveys, test pits, trenches, and laboratory and field testing must be carried out by the applicant to define the physical characteristics of all soil and rock beneath safety-related and seismic Category I slopes, and borrow material that is to be used to construct safety-related dams, fills, and embankments (Refs. 10 and 11). The staff reviews these investigations to ascertain that the program has been adequate to define the in situ and earthwork soil and rock characteristics. The decision as to the adequacy of the investigation program is based on the methods discussed in SRP Section 2.5.4. Subsection 2.5.5.4. The preliminary specifications and quality control techniques to be used during construction are reviewed by the staff to ascertain that all design conditions are likely to be met (Refs. 5 and 9). During this part of the review the following are among those subjects reviewed for adequacy: 1. Proposed construction dewatering plan to ensure that it will not result in damage either to the natural or engineered foundation materials or to the structural foundation. 2. The excavation plan to remove all unsuitable materials from beneath the foundations and the quality control procedures which establish suitable materials. 3. The techniques and equipment to be used in compacting foundation and embankment materials. 4. The quality control and testing program to provide a high level of assurance that: a. The selected borrow material is as good and as