Document: NUREG-0800
Document ID: f387f4e9-c1e6-4266-aaf1-5834035426dc
Document Type: srp
Title: - Excavation and Backfill.  In meeting the requirements of 10 CFR Part 50, the
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1230/ML12302A004.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.4.5
CFR Part: 
CFR Title: 

Content:
presentation of the data concerning excavation, backfill, and earthwork analyses is acceptable if: A. The sources and quantities of backfill and borrow are identified and are shown to have been adequately investigated by borings, pits, and laboratory property and strength testing (dynamic and static); long term solubility properties and dissolution behavior during the life of the facility have been determined; and these data are included, interpreted, and summarized. B. The extent (horizontally and vertically) of all Category I excavations, fills, and slopes are clearly shown on plot plans and profiles. C. Compaction specifications and embankment and foundation designs are justified by field and laboratory tests and analyses to ensure stability and reliable performance over the life of the plant. D. The impact of compaction methods are incorporated into the structural design of the plant facilities. E. Quality control methods are discussed and the quality assurance program described and referenced. If backfill is to be placed under safety-related structures, proper inspections, tests, analyses and acceptance criteria (ITAAC) should be specified in the applicant’s technical submittal to ensure that the static and dynamic properties of in-place backfill material will be the same as, or better than the design parameters. In case cementitious construction material is to be placed under safety -related structures, proper ITAAC should be specified in the applicant technical submittal to ensure that the cementitious backfill placed underneath any Category I structures to a thickness greater than 5 feet, meets the design, construction and testing of applicable American Concrete Institutes (ACI) standards. 2.5.4-11 Draft Revision 5 – August 2013 F. Control of groundwater during excavation to preclude degradation of foundation materials and properties is described and referenced. In addition, the long-term behavior of the backfill subjected to any aggressive groundwater