frost jacking
Link: http://w3id.org/permafrost/v/ipaglossary/t0125
Within: IPA Permafrost Glossary
Definition: Cumulative upward displacement of objects embedded in the ground, caused by frost action.
| Term |
éjection gélivale
fr
frost jacking en |
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| Comment |
Frost jacking results from basal or vertical freezing pressures acting on the underside of a foundation, structure or object, or from adfreezing of soil to the sides of these objects. The cumulative upward movement over a period of time (one or several freeze-thaw cycles) may result in the foundation unit or object being ejected from the ground. Fence posts and utility poles or towers are commonly affected, and both deep (pile) and shallow (post) foundations (e.g., used for bridges, wharves, unheated or lightweight buildings) have been seriously affected by frost jacking. Blocks of jointed or fractured bedrock have also been displaced upward by frost jacking.
en
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| dcterms:source |
https://doi.org/10.4224/20386561
xsd:anyURI
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| skos:hiddenLabel |
upfreezing
en
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