DEEP BENCH MARKS IN CLAY AND PERMAFROST AREAS

• Main Authors: Bozozuk,M., Johnston,G. H., Hamilton,J. J.
• Other Authors: NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF BUILDING RESEARCH
• Format: Text
• Language: English
• Published: 1963
• Subjects: CLAY; CANADA; PERMAFROST; DRILLING MACHINES; JACKS(LIFTS); ANCHORS(STRUCTURAL); Canada; The Bench; permafrost
• Online Access: http://www.dtic.mil/docs/citations/AD0436204; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0436204

This paper describes the design and use of deep bench marks by the Division of Building Research Council of Canada. The bench marks consist of an inner pipe protected by an outer casing from the effects of seasonal ground movements and frost action. In sensitive clays the bench mark is installed by...