Review of Underground Construction Methods and Opening Stability for Repositories in Clay/Shale Media
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
This report reviews the art and practice of excavating and constructing underground facilities in clay/shale media, as part of a multi-year evaluation of the technical feasibility of direct disposal of spent nuclear fuel (SNF) in dual-purpose canisters (DPCs). The purpose is to review worldwide examples of large-scale excavations in clay/shale media, the methods used for excavation and constructi on, and the costs. It is anticipated that this information will help to show the feasibility of construction for a deep geologic respository for (on the order of) 10,000 large, heavy, heat-generating waste packages. This report will refine the clay/shale disposal concept for DPC -based waste packages, in support of future studies that include cost estimation.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1171453
- Report Number(s):
- SAND2014-15047R; 534396
- Country of Publication:
- United States
- Language:
- English
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