Frost Heaving


Also found in: Dictionary, Thesaurus, Wikipedia.

frost heaving

[′frȯst ‚hēv·iŋ]
(geology)
The lifting and distortion of a surface due to internal action of frost resulting from subsurface ice formation; affects soil, rock, pavement, and other structures.

Frost Heaving

 

increase in the volume of freezing moist soils and loose rocks as a result of the crystallization of water (which forms ice interlayers, lenses, and the like) and the decompaction of mineral particles. It is observed in areas where there is seasonally and permanently frozen ground. Frost heaving is caused by the uneven lifting of the freezing layers. The reason for the differences in magnitude of lifting is differences in conditions of freezing, the composition of the rocks, the moisture, density, and so on. Clayey rocks are most subject to frost heaving because frost heaving depends not only on the moisture of the rocks but also on migrational moisture entering the freezing ground from adjacent unfrozen zones. The stresses that arise in the ground during frost heaving may cause breaks in the root systems of plants, deformation and shifting of structures, and the like. The unfavorable consequences of frost heaving are prevented by land reclamation, treating the ground with substances that change its physicochemical properties, and using special building structures.

REFERENCES

Osnovy geokriologii (merzlotovedeniia), part 2. Moscow, 1959.
Orlov, V. O. Kriogennoe puchenie tonkodispersnykh gruntov. Moscow, 1962.
Bor’ba s puchinami na zheleznykh i avtomobiVnykh dorogakh. Moscow, 1965.
Kiselev, M. F. Meropriiatiia protiv deformatsii zdanii i sooruzhenii ot deistviia sil moroznogo vypuchivaniia fundamentov. Moscow, 1971.

V. O. ORLOV

References in periodicals archive ?
This may be attributed to that the external load is much less than the huge frost-heaving force generated by the frost heaving inside the soil, so the restraining effect of the overlying load on frost-heaving ratio is very small.
The displacement corresponds to the phenomena of expansion with heat and contraction with cold in the unfrozen area and presents the phenomena of frost heaving and thaw settlement in the frozen area.
When pouring a proper post anchor, do your best to make it bell-shaped to take advantage of the frost heaving pressures to keep your post seated.
How will they monitor frost heaving and what will they do if they find problems?
Mulching to prevent frost heaving should be done after cold weather has come.
Frost heaving in alfalfa establishment on soils with different drainage characteristics.
Although HDPE has only been in use for a few years in this region, the study indicates a clear preference for polyethylene with respect to ice removal and frost heaving.
The first type, which is based on continuum mechanics and the classical heat transfer theory, studies thermal-hydro-mechanical (THM) coupling of rocks under low temperature and the freezing and thawing cycles [25], as well as distribution laws of frost heaving pressure influenced by frost heaving and temperature on tunnel surrounding rocks in cold regions [26, 27].
Wang, A Study on the Moisture Content Migration and Characteristics of Frost Heaving of Saline Soil in the Western of Jilin Province, Jilin University, Changchun, China, 2011.
To prevent frost heaving, footing holes should have sides that are vertical.
In addition to the foundation system, which helps prevent damage from settling and frost heaving, the five-star energy rated homes are also built with a galvanized steel wall system with EPS foam insulation, and a rigid galvanized steel frame to withstand heavy winds and snow loads.
Frost heaving or jacking must be controlled to prevent severe damage to structures.