Form Approved
REPORT DOCUMENTATION PAGE
OMB No. 0704-0188
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1. AGENCY USE ONLY (Leave blank)
2. REPORT DATE
3. REPORT TYPE AND DATES COVERED
June 1998
4. TITLE AND SUBTITLE
5. FUNDING NUMBERS
Structural Analysis of DEW Line Station DYE-2, Greenland:
19831988
6. AUTHORS
Michael R. Walsh and Herbert T. Ueda
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION
REPORT NUMBER
U.S. Army Cold Regions Research and Engineering Laboratory
72 Lyme Road
CRREL Report 98-3
Hanover, New Hampshire 03755-1290
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSORING/MONITORING
AGENCY REPORT NUMBER
U.S. Air Force
Washington, D.C. 20330
For conversion of SI units to non-SI units of measurement consult Standard Practice for Use of the
11. SUPPLEMENTARY NOTES
International System of Units (SI), ASTM Standard E380-93, published by the American Society for Testing and Materials,
1916 Race St., Philadelphia, Pa. 19103.
12a. DISTRIBUTION/AVAILABILITY STATEMENT
12b. DISTRIBUTION CODE
Approved for public release; distribution is unlimited.
Available from NTIS, Springfield, Virginia 22161.
13. ABSTRACT (Maximum 200 words)
DYE-2, a Distant Early Warning station, is located on the Greenland ice cap approximately along the Arctic Circle,
470 km from the west coast. The viscous nature of the material on which the structure is grounded made periodic
monitoring and maintenance of the supporting structure necessary. This report analyzes the stresses developed
within the structure from the last major maintenance operation, a 64-m sideways move in 1982 to a new founda-
tion, to the final set of stress measurements taken at the abandoned site in 1988. Conclusions drawn from these
measurements and the subsequent analysis were that the building system was continuing to tilt in one direction
because of differential footing settlement caused by changing footing conditions, and high structural stresses
would make it unsafe for reoccupation after December of 1988 unless emergency maintenance was performed.
The U.S. Air Force officially abandoned the site in August 1988 as a result of this analysis.
14. SUBJECT TERMS
15. NUMBER OF PAGES
26
Differential settlement
Footings
Structural stresses
DYE-2
Snow foundation
Supporting structures
16. PRICE CODE
17. SECURITY CLASSIFICATION
18. SECURITY CLASSIFICATION
19. SECURITY CLASSIFICATION
20. LIMITATION OF ABSTRACT
OF REPORT
OF THIS PAGE
OF ABSTRACT
UNCLASSIFIED
UNCLASSIFIED
UNCLASSIFIED
UL
Standard Form 298 (Rev. 2-89)
NSN 7540-01-280-5500
Prescribed by ANSI Std. Z39-18
298-102
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