The upthrust of soil caused when moist soil freezes. Posts and footings that do not extend below the frostline are subject to frost heave. Home Improvement Encyclopedia
A disturbance or uplift of soil, pavement, or plants caused by moisture in the soil freezing and expanding.
The upward or outward movement of the ground surface (or objects on or in the ground) caused by the formation of ice in the soil.
The raising of a pavement surface due to the accumulation and expansion of ice in the underlying soil or rock.
A land surface that is pushed up by the accumulation of ice in the underlying soil. ( FS People's Glossary of Eco Mgmt Terms)
Problem caused when the water beneath the soil under a structure freezes, moving the structure upward.