Feasibility studies and conceptual design for placing steel liner in long, horizontal boreholes for a prospective nuclear waste repository in tuff
Technical Report
·
OSTI ID:59594
Sandia National Laboratories Report SAND83-7085 analyzed vertical and horizontal methods of drilling holes for emplacement of nuclear waste canisters in a repository in tuff. While the horizontal method showed a significant cost advantage, the risk of hole blockage due to rock falls is higher. This report addresses the possibility of emplacing a steel casing simultaneously with drilling the hole. It appears that a drill could be developed that could be removed for repair from a partially complete hole and then reinstalled to complete drilling. A conceptual design featuring an eccentric cutterhead was completed. Capital and operating costs, as well as an operational schedule, were developed for the drill unit. 2 refs., 4 figs., 2 tabs.
- Research Organization:
- Robbins Co., Kent, WA (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 59594
- Report Number(s):
- SAND--84-7209; ON: DE85014931
- Country of Publication:
- United States
- Language:
- English
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