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Title: Application of quality assurance controls to TBM tunneling on the Yucca Mountain Project

Technical Report ·
OSTI ID:263012

As part of the Yucca Mountain Project (YMP), a 7.62-meter diameter tunnel is being constructed using a Tunnel Boring Machine (TBM). This tunnel, which may form a portion of a permanent high-level nuclear waste repository, is being constructed under the auspices of a nuclear quality assurance (QA) program. The YMP nuclear QA program applies to items and activities determined to be important to radiological safety, waste isolation, and potential interactions with the environment. The items and activities determined to be important have been assigned a quality assurance classification. This paper focuses on the items (rockbolts, steel sets, and shotcrete) and quality affecting activities involved in providing ground support and excavating the tunnel. Typical activities that have been assigned QA classifications include TBM maintenance, control of water used in the tunnel during construction, and control of diesel emissions in the tunnel. The paper concludes that the key to the successful implementation of nuclear QA requirements for tunneling at Yucca Mountain was the assignment of personnel with the appropriate mix of tunneling and nuclear experience.

Research Organization:
Science Applications International Corp., Las Vegas, NV (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC08-87NV10576
OSTI ID:
263012
Report Number(s):
CONF-960212-93; TRN: 96:004250
Resource Relation:
Conference: Waste management `96: HLW, LLW, mixed wastes and environmental restoration - working towards a cleaner environment, Tucson, AZ (United States), 25-29 Feb 1996; Other Information: PBD: 1996
Country of Publication:
United States
Language:
English