Dikes on permafrost: predicting thaw and settlement

Prediction of permafrost thaw and settlement of dikes constructed on perennially frozen ground is important for maintenance and foundation stability. A method is developed for estimating the rates of thaw and settlement, based on simple heat conduction theory. A comparison of calculated and observed...

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Bibliographic Details
Published in:Canadian Geotechnical Journal
Main Authors: Brown, W. G., Johnston, G. H.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1970
Subjects:
Civil and Structural Engineering
Geotechnical Engineering and Engineering Geology
Ice
permafrost
Online Access:http://dx.doi.org/10.1139/t70-049
http://www.nrcresearchpress.com/doi/pdf/10.1139/t70-049
Description
Summary:Prediction of permafrost thaw and settlement of dikes constructed on perennially frozen ground is important for maintenance and foundation stability. A method is developed for estimating the rates of thaw and settlement, based on simple heat conduction theory. A comparison of calculated and observed rates of thaw for dikes on ice-rich foundation soils at the Kelsey Generating Station in northern Manitoba shows good agreement and indicates that thaw and settlement rates can be predicted with reasonable accuracy.

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