Design of a machine to bore and line a long horizontal hole in tuff: Nevada Nuclear Waste Storage Investigations Project

Technical Report · Tue Sep 01 04:00:00 EDT 1987

OSTI ID:60394

Friant, J E; Dowden, P B

This report describes an engineering design for equipment capable of simultaneously drilling and lining deep horizontal bore holes. The ultimate use of the equipment is to bore up to 600 ft long, 3 ft diameter emplacement holes for a nuclear waste repository. The specific system designed is referred to as a Development Prototype Boring Machine (DPBM) which will be used to demonstrate the drilling/lining capability in field development tests. The system utilizes as in-hole electric drive and a vacuum chip removal and handling system. The drilling unit is capable of active directional control and uses laser-type alignment equipment. The system combines the features of a small steerable tunnel boring machine, combined with a horizontally-oriented raise drill, thereby utilizing current technology. All elements of the system are compact and mobile as required for a shaft entry, underground mining environment. 3 refs., 35 figs., 1 tab.

• Research Organization: Robbins Co., Kent, WA (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 60394
• Report Number(s): SAND--86-7004; ON: DE88003618
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
BOREHOLES
DESIGN
DRILLING EQUIPMENT
EMPLACEMENT
HIGH-LEVEL RADIOACTIVE WASTES
LASER GUIDANCE
LINING PROCESSES
MATERIALS HANDLING EQUIPMENT
NEVADA
PORTABLE EQUIPMENT
RETRIEVAL SYSTEMS
UNDERGROUND DISPOSAL
UNDERGROUND STORAGE
YUCCA MOUNTAIN
Yucca Mountain Project