Document: NUREG-0800
Document ID: 6d95bc89-e14a-4d87-bf91-1d1760c2aff8
Document Type: srp
Title: FOUNDATIONS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1235/ML12353A388.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.5
CFR Part: 
CFR Title: 

Content:
t both vertical and horizontal movements in and around the structures, as well as differential distortion across the foundation footprint, from the beginning of construction at the site. The movements induced by site excavation, backfill, and re-compaction should be included in the monitoring program. Consideration should be given to maintaining all or pieces of the monitoring program over the life of the structure. 3.8.5-13 Draft Revision 4 - December 2012 In the case of a COL application that incorporates a DC application by reference, the staff reviews the following information: • Site-specific geotechnical investigation program to determine predicted settlements during construction and post construction, based on the construction sequence to be used. The investigation program should be carried to sufficient depths to be able to ascertain these properties over the depth considered important to the settlement analyses. The methodology for site-specific settlement analyses should be consistent with the corresponding methodology in the DC application. • Settlement monitoring program to verify whether measured settlements and distortions are consistent with predicted site-specific settlements during construction and post-construction phases, through the life of the structure. • Verification of the interface considerations between DC and COL applications, which should be based on the information described in the above two bullets. The above considerations are appropriate for major Seismic Category I foundations such as a Nuclear Island basemat. Alternative, more simplified, approaches are acceptable for the case of smaller structures if adequate justifications are provided. In the case of adjacent structures connected by appurtenances (non-flexible commodities, such as piping and conduit), the staff reviews the design criteria for total settlement and for relative settlement between adjacent structures to ensure consistency with the criteria used in the design