Design of underground repository openings in hard rock to accommodate vibratory ground motions
- J.F.T. Agapito and Associates, Inc., Grand Junction, CO (US)
- Sandia National Labs., Albuquerque, NM (US)
A methodology and preliminary application for designing repository openings to withstand vibratory ground motions is presented. The methodology first establishes the design basis ground motion based on the usage category, performance goals, and hazard exceedance guidelines and incorporates those motions into the more general drift design methodology. The repository drift design methodology includes the effects of the in situ stresses and the thermal loads generated from the heat released from the nuclear waste packages. Empirical and analytical methods for design for seismic loading are reviewed, and it is concluded that analytical methods provide the only means method to adequately incorporate the effects of seismic and thermal loads on design. Quasi-static and dynamic analysis methods are discussed. The example application to the potential repository at the Yucca Mountain site illustrates, by using the quasi-static method, that the seismic loads in combination with the thermal loads can be significant in the design of the ground support/reinforcement system in some locations. Under present expected conditions, the seismic loads themselves are not excessive and can be accommodated in the design by available ground support/reinforcement systems. However, in the waste emplacement drift where the thermal loads are high, the potential and additional seismic loads could require novel ground support/reinforcement designs and maintenance.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 139475
- Report Number(s):
- CONF-920866-; ISBN 0-87262-945-7; TRN: 93:016968
- Resource Relation:
- Conference: American Society of Civil Engineers (ASCE) symposium on dynamic analysis and design considerations, for high-level nuclear waste repositories, San Francisco, CA (United States), 19-20 Aug 1992; Other Information: PBD: 1993; Related Information: Is Part Of Dynamic analysis and design considerations for high-level nuclear waste repositories; Hossain, Q.A. [ed.]; PB: 443 p.
- Country of Publication:
- United States
- Language:
- English
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Design of underground repository openings in hard rock to accommodate vibratory ground motions. [Yucca Mountain Project]
Drift design methodology and preliminary application for the Yucca Mountain Site Characterization Project; Yucca Mountain Site Characterization Project
Related Subjects
HIGH-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTE DISPOSAL
YUCCA MOUNTAIN
SEISMIC EFFECTS
RADIOACTIVE WASTE FACILITIES
GROUND MOTION
PERFORMANCE
DYNAMIC LOADS
SITE CHARACTERIZATION
DESIGN
UNDERGROUND EXPLOSIONS
NUCLEAR EXPLOSIONS
MATHEMATICAL MODELS
ROCK MECHANICS
Yucca Mountain Project