frost heaving

A process called frost heaving is responsible for these features.

While frost heaving is considered a requirement, too much causes mortality.

They will not retain moisture, which in northern climates can cause frost heaving.

Frost heaving is the most common form of cryoturbation.

The process that creates pingos is believed to be closely related to frost heaving.

Differential frost heaving can crack pavements and damage building foundations.

Natural threats to the species include frost heaving.

The overlying soil layer is gradually lifted up by frost heaving.

Frost heaving creates debris and dramatically shapes landscapes into complex patterns.

The substrate commonly undergoes frost heaving, which breaks it up.

The dominant cause of soil displacement in frost heaving is the development of ice lenses.

Building codes sometimes take frost depth into account because of frost heaving which can damage buildings by moving their foundations.

In cold climates, freezing of the groundwater underneath can crack asphalt even in one winter (by frost heaving).

Frost heaving (or a frost heave) results from ice forming beneath the surface of soil during freezing conditions in the atmosphere.

The actual formation of stone runs involved no less than five processes: weathering, solifluction, frost heaving, frost sorting, and washing.

Taber showed that the vertical displacement of soil in frost heaving can be significantly greater than that due to molar volume expansion.

But where flooding or frost heaving is a problem, or where soil is sandy, post holes should be filled with concrete above the crushed stone.

Frost heaving requires a frost-susceptible soil, a continual supply of water below (a water table) and freezing temperatures, penetrating into the soil.

A foundation must bear the structural loads imposed upon it and allow proper drainage of ground water to prevent expansion or weakening of soils and frost heaving.

The climate of northeast China poses a challenge to the design; parts of the line may have to be rebuilt before the opening due to deformation caused by frost heaving.

After his recovery, he began his studies of frost heaving which eventually led to the founding of the Laboratory of Agricultural Physics at Hokkaido University in 1946.

Frost heaving broke up the sub-surface sedimentary layers of chalk turning small slabs into a more and more upright orientation towards the surface, to be covered by present day soil.

The probable source of these textures was chemical weathering along joint surfaces at the time that the rock was still in place and before the boulders were broken out by frost heaving (Psilovikos 1982).

The larger fragments are then shaken into place through rain beat, running water, wind, wind, gravity, creep, thermal expansion and contraction, wetting and drying, frost heaving, animal traffic, and the Earth's constant microseismic vibrations.

Frost heaving creates raised-soil landforms in various geometries, including circles, polygons and stripes, which may be described as palsas in soils that are rich in organic matter, such as peat, or lithalsa in more mineral-rich soils.