Design cost scoping studies. Nevada Test Site Terminal Waste Storage Program, Subtask 1. 3: facility hardening studies

Technical Report · Sat Apr 01 00:00:00 EST 1978

DOI:https://doi.org/10.2172/6743154· OSTI ID:6743154

Yanev, P I; Owen, G N

As part of a program being conducted by the U.S. Department of Energy, Nevada Operations Office, to determine the feasibility of establishing a terminal waste storage repository at the Nevada Test Site, URS/John A. Blume and Associates, Engineers, made approximate determinations of the additional costs required to provide protection of structures against seismic forces. A preliminary estimate is presented of the added costs required to harden the surface structures, underground tunnels and storage rooms, and vertical shafts of the repository against ground motion caused by earthquakes and underground nuclear explosions (UNEs). The conceptual design of all of the structures was adapted from proposed bedded-salt waste-isolation repositories. Added costs for hardening were calculated for repositories in three candidate geological materials (Eleana argillite, Climax Stock granite, and Jackass Flats tuff) for several assumed peak ground accelerations caused by earthquakes (0.3g, 0.5g, and 0.7g) and by UNEs (0.5g, 0.7g, and 1.0g). Hardening procedures to protect the tunnels, storage rooms, and shafts against incremental seismic loadings were developed from (1) qualitative considerations of analytically determined seismic stresses and (2) engineering evaluations of the dynamic response of the rock mass and the tunnel support systems. The added costs for seismic hardening of the surface structures were found to be less than 1% of the estimated construction cost of the surface structures. For the underground structures, essentially no hardening was required for peak ground accelerations up to 0.3g; however, added costs became significant at 0.5g, with a possible increase in structural costs for the underground facilities of as much as 35% at 1.0g.

• Research Organization: URS/John A. Blume and Associates, Engineers, San Francisco, CA (USA)
• DOE Contract Number: EY-76-C-08-0099
• OSTI ID: 6743154
• Report Number(s): JAB-99-123; TRN: 78-015580
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
NEVADA TEST SITE
GRANITES
RADIOACTIVE WASTE STORAGE
TUFF
COST
UNDERGROUND STORAGE
EARTHQUAKES
NUCLEAR EXPLOSIONS
SILT
UNDERGROUND EXPLOSIONS
US DOE
EXPLOSIONS
IGNEOUS ROCKS
MANAGEMENT
NATIONAL ORGANIZATIONS
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SEISMIC EVENTS
STORAGE
US ORGANIZATIONS
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052002* - Nuclear Fuels- Waste Disposal & Storage