SU1742406A1 - Method of protecting soil against freezing - Google Patents

Abstract

The invention relates to the field of hydraulic engineering, in particular to the construction of earth dams in harsh climatic conditions. The purpose of the invention is to reduce labor costs when working the soil during the cold season to use it. The method involves the construction of a collar in the warm season, during the storage process of which the air ducts are laid along the collar, the ends of the air ducts are connected to the heat supply source on one end side of the collar, and the free ends of the air ducts are output to the outside on the other end side. Then the collar is covered with a polyethylene film on which a layer of artificial porous ice is frostbite by sprinkling water through a medium of frosty air. 2 Il.

Description

The invention relates to hydraulic engineering, in particular to methods for storing soil from freezing.

The purpose of the invention is to reduce labor costs when working the soil during the cold season to use it.

Figure 1 shows the collar, cross section; figure 2 - the same. in working condition, longitudinal section.

The method of preserving the soil from freezing is as follows.

In the warm period of the year, the preparation of the soil of the collet 1 begins. As the folding process, composite pipes (air ducts) 2 are placed along the collar 1, the ends of which are connected to the heat supply source 3 on one end of the collar 1, and the free ends of the air ducts 2 are out

the other end side. After the collar 1 is thus prepared, it is completely covered with polyethylene film 4, on which, with the onset of a period of negative temperatures, a layer of artificial porous ice 5 is frosting by sprinkling water through freezing air. The heat supply source 3 is switched on at regular intervals and during the development of the collar 1. Development of the collar. 1 starts from the end side where the free ends of the air ducts 2 come out. As the collar 1 is developed, the heat insulating layer of porous ice 5 is chopped, the film 4 is folded, and the empty ends of the air ducts 2 are removed and folded in specially designated places.

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Example. The method of preserving the soil from freezing can be used when laying the harvested soil in the dam body in the winter season to create reservoirs for the revival of abandoned settlements.

For this, in the warm season, a pile of soil is prepared at the construction site of the dam, which is intended to be placed in the dam body during the winter period. In the process of storing the collar and as it is erected, composite air ducts are laid along the collar, the ends of the air ducts are connected to a heat supply source, for example, with an iron furnace, on one end side of the collar, and the free ends of the air ducts are removed from the other end side. After completion of the harvesting, the collar is covered with plastic film, on which, with the onset of the cold period, a layer of porous ice is frozen by sprinkling water through frosty air, for example, a Grad sprinkler. With the onset of a period of negative temperatures, the collar is heated from time to time through ducts by means of the furnace firing furnace vi during the development of the collar. As the collar develops, the heat insulating layer is removed, the film is rolled up, and the loose ends of the air ducts are removed and stored in a designated place for reuse.

The advantages of the proposed method of preserving soil from freezing are: simplicity and accessibility; the use of cheap and scrap materials; use of air ducts and films in the following years; smooth development of harvested soil in the winter.

Claims (1)

Invention Formula A method of preserving soil from freezing, including the construction of a collar during a period of positive air temperatures by continuous storage of the soil and the subsequent coating of the collar with an insulating layer, characterized in that, in order to reduce labor costs during the development of the soil during the cold season to use it, in the process of storing the collar as it is erected, composite air ducts are laid along the collar, the ends of the air ducts are connected to the heat supply source on one end of the collar, and the free ends Duct withdrawn outwardly from the other end side, the flow of heat from the heating sources is performed periodically during operation shoulder during the cold period at certain time intervals and in the development of shoulder and osvobozhdayuschies duct ends as the excavation is recovered for reuse. R .5,: T: T -T C;,. .T7 / G7 b;: - 4 FIG. I / FIG. 2