Emplacement hole drill evaluation and specification study. Volume I

Technical Report · Fri Sep 30 04:00:00 EDT 1977

DOI:https://doi.org/10.2172/5253757· OSTI ID:5253757

Results of a conceptual design program are presented for mine floor drilling in preparation for radioactive waste disposal. Two classes of drills can be used to drill emplacement holes in salt. Both are sufficiently rugged and reliable. Raise borers have a higher capital cost and require more modifications, but are more flexible in other applications and require less labor. The life cycle cost for the raise borers and for the auger rigs are about the same, while the life cycle costs of bucket drills are much higher. As long as the hole is 36 inches in diameter or less and 40 feet deep or less in salt, then the auger rig is recommended because of the lower capital cost and lower operating cost. This recommended system represents what is thought to be the best combination of available drill components assembled into a drill rig which will provide at least adequate performance. Furthermore, this drill system can be procured from at least three manufacturers. If the facility criteria change significantly, however, then the drill rig recommendations will have to be reassessed on the merits of the changes. The drill rig manufacturers can be quite flexible in combining components provided the buyer is willing to accept components with which the manufacturer has had experience. If this condition can be met, then most drill rig manufacturers will include the associated design cost as part of the drill cost. If special components are required, however, then the number of manufacturers willing to participate in a procurement may be severely reduced.

• Research Organization: Foster-Miller Associates, Inc., Waltham, Mass. (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5253757
• Report Number(s): Y/OWI/SUB-77/22324/1
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
42 ENGINEERING
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
BOREHOLES
CAVITIES
COMPARATIVE EVALUATIONS
COST
DRILLING EQUIPMENT
DRILLING RIGS
DRILLS
EQUIPMENT
EVALUATION
MANAGEMENT
RADIOACTIVE WASTE STORAGE
SITE PREPARATION
STORAGE
UNDERGROUND STORAGE
WASTE MANAGEMENT
WASTE STORAGE