Accession Number:

AD0701175

Title:

PROTECTION OF BENCH MARKS AT POLAR GAGING STATIONS (O Sokhranenii Otmetok Nulei Vodomernykh Postov na Polyarnykh Stantsiyakh).

Descriptive Note:

Corporate Author:

ARCTIC CONSTRUCTION AND FROST EFFECTS LAB BOSTON MASS

Personal Author(s):

• Koblents ,Ya. P.

Report Date:

1961-01-01

Pagination or Media Count:

7.0

Abstract:

Bench-mark damage in polar regions associated with permafrost and ground ice is analyzed, and proper construction methods are discussed. A metal pipe about 60 mm in diameter, with a disk about 150 mm in diameter welded on the lower end, is not liable to destruction or change in elevation when the disk is placed at a depth equal to three times the thickness of the active layer. Author

Descriptors:

• (*COASTAL REGIONS
• HEIGHT FINDING)
• (*VISUAL SIGNALS
• PROTECTION)
• PERMAFROST
• SOILS
• FROST HEAVE
• RODS
• USSR

Subject Categories:

• Cartography and Aerial Photography
• Snow, Ice and Permafrost

Distribution Statement:

APPROVED FOR PUBLIC RELEASE