oa Civil Engineering = Siviele Ingenieurswese - A hypothetical clay model to describe free swell in active clays

Volume 34, Issue 7
  • ISSN : 1021-2000



Great emphasis has been placed on the provision of adequate mass housing. The large number of these houses that would be constructed on active clay places a responsibility on the engineer to come up with an optimum foundation design. In this paper a clay model, with which it is possible to explain the free swell of an active clay, was presented. The clay model was used to postulate the existence of a swell threshold suction in active clay and then to prove it using laboratory results. This threshold suction holds implications for the more advanced heave prediction methods. Lastly, a few simple but rational free swell prediction equations were also presented.

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