Abstract
The the results of scientific and experimental work are described, the purpose of which was to determine the depth of thawing of seasonally frozen soils using the lime extinguishing reaction as a source of heat. The analysis of meteorological, agrometeorological conditions typical for Uralsk was carried out. The method, which provides an opportunity to use the heat released in the interaction of calcium oxide with water, was developed. To implement this method, a heat-insulating structure is designed and manufactured, which allows to accumulate and direct the accumulated heat through the heating system «from top to bottom». It was found that the use of the described method makes it possible to achieve a thawing depth of the soil up to 56 cm. At the time of scientific-experimental work, this thawing depth indicator exceeded the actual depth of soil freezing
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