Accession Number : AD0712492

Title :   PERMAFROST INVESTIGATIONS FISCAL YEAR 1955. FIELD INVESTIGATIONS IN ARCTIC AND SUBARCTIC REGIONS. BUILDING FOUNDDATION STUDY FAIRBANKS RESEARCH AREA. (DRAFT).

Corporate Author : ARCTIC CONSTRUCTION AND FROST EFFECTS LAB BOSTON MASS

Report Date : MAY 1955

Pagination or Media Count : 135

Abstract : A study of the changes brought about in the thermal regime beneath buildings constructed over permafrost and the effect of these changes on the buildings has been made by observing eleven test buildings with various types of foundations for a period of about five years. The principal measurements included temperature readings in the foundation and soils beneath the structures and vertical movements of points on the buildings. These observations have resulted in findings concerning the permanence or degradation of permafrost, the seasonal freezing and thawing patterns, the relation of these thermal changes to seasonal and yearly vertical displacements of the buildings, and structural damage in the buildings resulting from the movements. The effect of such foundation features as air spaces beneath floors, fills of non-frost-susceptible materials, post and pad construction, concrete slab floor construction on fills, insulated and non-insulated built-up wooden floors on fills, and insulation layers in fills have been studied. (Author)

Descriptors :   (*PERMAFROST, *ALASKA), (*FOUNDATIONS(STRUCTURES), PERMAFROST), BUILDINGS, SOIL MECHANICS, DRAINAGE, TERRAIN, FREEZING, MELTING, ANCHORS(STRUCTURAL), DEGRADATION, WOOD, THERMAL PROPERTIES, GRAVEL, REINFORCED CONCRETE, THERMAL INSULATION, DAMAGE, ARCTIC REGIONS

Subject Categories : Snow, Ice and Permafrost
      Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE