ML102920093

9.3 Ground Movement

ML102920093
Person / Time
Site:	Crystal River
Issue date:	03/17/2010
From:	- No Known Affiliation
To:	Office of Information Services
References
FOIA/PA-2010-0116
Download: ML102920093 (1)

Text

9.3 Ground Movement (sink holes or geo-sliding

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Description:==

Ground movement caused by sink holes and/or dissolution of the limestone under the containment can result in lack of foundation support.

Data to be collected and Analyzed:

1.Geo-technical report- Gilbert Geotechnical Study Section 1.2.11 (1971) (FM 9.3 Exhibit 1)

2. FSAR Chapter 2 Section 2.5.7.2 (FM 9.3 Exhibit 2)

3. E-mail from Glen Pugh to Craig Miller (FM 9.3 Exhibit 3)

4. Buttress and Dome Survey Data (FM 9.3 Exhibit 4)

Verified Refuting Evidence: Verified Supporting Evidence:

a. The limestone supporting the containment was cement grouted to assure the continuity and None integrity of the material. (FM 9.3 Exhibit 1)

b. There is no record of an observation of building cracking or sinkhole consistent with FSAR conclusions. (FM 9.3 Exhibits 2 and 3)

c. The Buttress and dome survey data show that the containment structure remains plum and the containment has not settled. (FM 9.3 Exhibit 4) See FM 1.5 for a more detailed discussion.

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Conclusion:==

There is no indication of containment settlement sufficient to cause added, asymmetrical I

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