RU2679327C1 - Method of increasing capacity of ice cap - Google Patents

Abstract

FIELD: transportation.SUBSTANCE: method consists in the fact that the carrying capacity of the ice cover is increased by means of steel pipes lowered vertically to the bottom of the basin through the through holes formed in the ice cover at both edges of the crossing along its entire length, the bottom end of the pipe is made brewed, and its upper end protrudes above the ice surface. Before the expected change in the water level in the reservoir in the ice cover, along the entire length of the crossing, two ice beams are cut out so that the upper ends of the pipe are located along their center, the lateral distance between them was sufficient for the passage of vehicles, and the width of the beams should not be less than the diameter of the layer of ice frosting on the pipes.EFFECT: invention can be used to create an ice crossing for the transportation of goods.1 cl, 2 dwg

Description

The invention relates to the field of ice technology and can be used to create an ice ferry for transporting goods.

A technical solution is known (1. Kozin V.M. RF Patent No. 2135685 dated 08/27/1999), in which the method of creating an ice crossing consists in placing steel pipes under ice, dropped vertically to the bottom of the pool through the through holes formed in the ice cover on both the edges of the crossing along its entire length, with the bottom end of the pipes made brewed, and its upper end protruding above the ice surface. Cold air, as heavier, enters the pipes, causing ice to freeze over their entire outer surface. After a sufficient time has elapsed for reliable freezing of the lower and upper parts of the pipes to the bottom of the pool and the ice cover, respectively, and freezing on the surfaces of the ice pipes of the required thickness, the ice crossing is ready for operation.

The disadvantage of this method is the danger of its use with significant fluctuations in the water level in the reservoir, which inevitably occur throughout the winter period. So, when the level rises, detachment of the bottom ends of the pipes can occur, and when they fall, the ice cover itself can be destroyed in places where it freezes to the upper ends of the pipes. In addition, the disadvantages of the method can also include an insufficient increase in the bearing capacity of the ice sheet.

The objective of the claimed invention is to create an ice ferry, the bearing capacity of which would not depend on fluctuations in the water level in the reservoir, and increase the rigidity of the ice plate in the ice ferry.

The technical result achieved by solving the problem is to increase the reliability of operation of the ice crossing.

The essential features characterizing the invention.

Restrictive: the load-bearing capacity of the ice cover is increased by means of steel pipes lowered vertically to the bottom of the pool through the through holes formed in the ice cover along both edges of the crossing along its entire length, the bottom end of the pipe being welded and its upper end protruding above the ice surface.

Distinctive: before the expected change in the water level in the body of water in the ice cover, two ice beams are cut along the entire length of the crossing so that the upper ends of the pipe are centered, the transverse distance between them is sufficient for vehicles to pass, and the width of the beams should not be less the diameter of the ice layer frozen onto the pipes.

The method is as follows.

Rows of through holes are drilled in the ice sheet on both sides of the intended cargo transportation path. Through them, pipes are vertically lowered onto the ice and rested against the bottom of the pool. The length of the pipes should be sufficient so that their upper end rises above the surface of the ice sheet. To prevent possible ascent of pipes, they are temporarily fixed. Then, the ice crossing thus prepared is subjected to negative temperatures. Cold, heavy air (t <0 ° C) enters the pipes, causing ice to freeze over their entire outer surface, i.e. the formation of peculiar ice piles (ice supports) under the ice cover, which will certainly increase the strength of the ice crossing. After a sufficient time has elapsed for the ice layer of the required thickness to freeze on the pipe surface, the ice ferry is ready for operation, but only for a given water level in the reservoir. Since this level will undoubtedly fluctuate throughout the entire period of ice freezing, in order to maintain the integrity of the ice cover in the places where the supports are installed and increase the bearing capacity of the ice cover before the expected change in the water level in the body of water in the ice cover, ice beams are cut along the entire length of the crossing in this way so that the upper ends of the pipes were located in their center, the transverse distance between them was sufficient for the passage of vehicles, and the width of the beams should not be less than the diameter of the freezing direct on the pipe of the ice layer.

When the water level rises, the ice cover will begin to rise relative to pipes and sawn beams frozen to the bottom of the pool. Water through the sawn slots will cover the sawn beams and after a certain time will freeze. As a result, the integrity of the ice cover will be restored. In addition, stiffeners will appear along the crossing in the ice, i.e. the strength of the ferry, and therefore its bearing capacity, will increase. As a result, the claimed technical result will be achieved.

When the water level drops, everything will happen in the reverse order.

The invention is illustrated graphically, where: in FIG. 1 shows a general view of an ice crossing; in FIG. 2 is a section AA in FIG. one.

In the ice sheet 1 on both sides of the intended route for transporting goods 2, rows of holes 3 are drilled. Through them, pipes 4 with welded lower ends are vertically lowered and abutted to the bottom of the pool 5 (Fig. 1). Due to the natural cold on the pipes 4, the ice layer 6 freezes with a diameter D. Before the expected change in the water level in the body of water in the ice sheet 1, ice beams 7 with a width B> D are cut along the entire length of the crossing (Fig. 2). When the water level rises, the ice cover will rise above the beams 7. Water 8 will cover the beams 7 (Fig. 2a). After freezing, the integrity of the ice cover will be restored, the beams 7 will turn into stiffeners and the bearing capacity of the ice cover 1 will increase. When the water level drops, everything will happen in the reverse order (Fig. 2b).

Claims (1)

A method of increasing the bearing capacity of the ice cover by means of steel pipes dropped vertically to the bottom of the pool through the through holes formed in the ice cover on both edges of the crossing along its entire length, the bottom end of the pipe being made brewed and the upper end protruding above the ice surface, characterized in that before the expected change in the water level in the reservoir in the ice cover, two ice beams are cut along the entire length of the crossing so that the upper ends of the pipe are located in their center, pop River distance between them is sufficient for the passage of vehicles, and the width of the beams should not be less than the diameter of the pipe is frozen ice layer.

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