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frost heave

noun, Geology
an uplift in soil caused by the freezing of internal moisture.
Origin of frost heave
1945-50 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for frost heave
  • These circles are likely caused by frost heave, the upward thrusting of the ground.
  • It appeared that frost heave had lifted all of the surface material and created many air pockets under the surface.
  • Freezing also breaks small particles into finer parts, accelerating the sealing of the pores when the frost heave layer settles.
  • Water weakens pavement support and contributes to frost heave and cracking.
  • During the winter months, frost heave of the subgrade and base layers can cause variations in the pavement profile.
  • The ability to adjust to differential settlement, frost heave, or other changes in the subgrade is desirable.
British Dictionary definitions for frost heave

frost heave

the upthrust and cracking of a ground surface through the freezing and expansion of water underneath Also called frost heaving
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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