An Investigation of the Snow Adjacent to Dye-2, Greenland.

• Main Authors: Ueda,H T, Goff,M A, Nielsen,K G
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
• Format: Text
• Language: English
• Published: 1981
• Subjects: Snow; Ice and Permafrost; Mechanics; *SNOW; DENSITY; MEASUREMENT; STRENGTH(MECHANICS); RADAR STATIONS; COMPRESSIVE PROPERTIES; GREENLAND; CORE SAMPLING; DEW line; Compressive strength; Greenland; Psi; Dye 3; Dye-3; Ice; permafrost
• Online Access: http://www.dtic.mil/docs/citations/ADA099139; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA099139

Snow samples from five 50-ft (15.2-m) deep holes, augered adjacent to the west side of DEW Line Station Dye-2 in Greenland, were investigated for density and unconfined compressive strength. Forty-two percent of the recovered cores were tested. Ninety-three percent of the samples tested had a length/diameter ratio greater than 2:1. The loading rate was 2 in./min (51 mm/min). Sample end-effects appeared to influence a high percentage of the failures. The heavily disturbed nature of the materials is evidenced in the widely scattered values of density and strength with depth. A minimum and maximum strength value of 31 psi (0.21 MPa) and 1065 psi (7.34 MPa) respectively were obtained from a hole located 50 ft (15.2 m) from the structure. Using an approach similar to that used prior to the DYE-3 move in 1976, a safety factor exceeding 6.5 is obtained against a brittle bearing failure based on a maximum footing design load of 2000 lb/sq ft (96 kPa). (Author)