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Management of Commercially Generated Radioactive Waste - U.S. ...

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K.2<br />

TABLE K.1.1. Thermal and Thermomechanical Limits for Conceptual Design Studies<br />

Far-Field Considerations<br />

Event Limits<br />

Maximum uplift over repository 1.2 to 1.5 m (Russell 1977)<br />

Temperature rise at surface 0.5 0 C (Science Applications,<br />

Inc. 1976)<br />

Temperature rise in aquifers 6 0 C (Science Applications,<br />

Inc. 1976)<br />

Near-Field Considerations<br />

Room closure during ready retrieva- 10 to 15% <strong>of</strong> original room opening<br />

bility period--salt (Russell 1977)<br />

Room stability--granite, basalt rock 2 within 1.5 m <strong>of</strong> openings<br />

strength-to-stress ratio (Dames and Moore 1978)<br />

Room stability--shale with continuous 1 within 1.5 m <strong>of</strong> openings<br />

support rock strength-to-stress ratio (Dames and Moore 1978)<br />

Pillar stability--non-salt strength- 2 across mid-height <strong>of</strong> pillar<br />

to-stress ratio (Dames and Moore 1978)<br />

Very-Near-Field Considerations<br />

Maximum HLW temperature<br />

as vitrified waste 500°C (Jenks 1977)<br />

Maximum spent fuel pin temperature 300 0 C (Blackburn 1978)<br />

Maximum canister temperature 375°C (Jenks 1977)<br />

Maximum rock temperature 250°C to 350°C<br />

Maximum fracture <strong>of</strong> non-salt rock 15 cm annulus around canister<br />

(Russell 1977)<br />

* Temperature Rise at the Surface<br />

Temperature rise at the surface has been limited to< 0.5 0 C to avoid undesirable effects<br />

on the biota. This limit must also be reevaluated for each site (Science Applications,<br />

Inc. 1976).<br />

* Temperature Rise in Aquifers<br />

Temperature rise in aquifers has been limited to

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