A method of creating ice crossing

 

(57) Abstract:

The invention relates to letterlike and can be used when creating the ice terminal for cargo transportation. The invention is directed to increasing the carrying capacity of the ice crossing. This technical result is achieved by numerazione under ice cover ice pillars. To do this in ice are drilled through holes, through which a vertically lower tube with welded bottom end, which rests in the bottom of the pool. The upper end of the pipe leaves above the ice cover. Cold air entering inside the pipe, causing icing of the latest and formation of ice pillars. 1 Il.

The invention relates to the field of hladotehnika and can be used when creating the ice terminal for cargo transportation.

Known technical solution (1. I. S. Peschansky. Lagoudera and hladotehnika. L.: Sea transport. - 1963. - 345 C.), in which a method of creating ice crossing is constructed on ice add-ons. When used together, add-ins and ice load ice can be increased up to a certain limit set by the ratio between OUTSTA influence of the superstructure on the capacity of the ice thickness of the ice cover over 0.5 m

The task of the claimed invention is to provide an ice crossing with a high degree of reliability.

Technical result achieved when the task is to reduce the deflection of the ice, resulting in ice when it loads.

The essential features characterizing the invention.

Restrictive: ice crossing create by building on ice add-ons.

Distinctive: the add-in form through steel pipes, lowered vertically on the bottom of the pool through the through-hole formed in the ice cover at both ends of the crossing along its entire length, and the bottom end of the tube is welded, and the upper end is above the ice surface.

It is known (2. Bogdanov, C. B., Tronin C. A., Sandakov Y. A. operating Experience icebreaker-lithocolletinae console type PL-18. - Best practices and new technology. The scientific. technology.sat. M, Transport, 1980, S. 7) that at low temperatures on steel structures in contact with water, is icing, i.e. namerzanie ice. Using this phenomenon, it is possible for ice to numerosity ice support, operahouses the deformation and Flexural stresses in the ice cover, arising from the movement of it goods, i.e., to increase the reliability of the ice crossing.

The method is as follows.

In ice cover on both sides of the intended path of transportation are drilled a series of holes. Through them under the ice vertically down the tube with welded bottom ends and rests them in the bottom of the pool. The length of the pipe must be sufficient so that its upper end above the surface of the ice cover. To prevent the possible emergence of pipes temporarily fix. Then, the thus prepared ice crossing is exposed to negative temperatures. Cold air is heavier, flows inside the tubes, causing namerzanie ice along their entire outer surface. After a time sufficient for reliable primerzanie upper and lower pipes respectively to the bottom of the pool and ice cover and freezing on the surfaces of the pipes of the ice layer of the required thickness, ice crossing is ready for operation. In the spring for closing operation of the terminal with the aim of dismantling pipes enough into the pipe to apply the warm air. After the little ice layer in contact with the surface is danoy terminal.

In ice cover 1 on both sides of the intended path of transportation 2 are drilled a series of holes 3. Through them vertically down the pipe 4 with welded bottom ends and rests in the bottom of the pool 5. Cold air (t<0C) doing the inside of the pipes, causing namerzanie on the surfaces of the pipes of the ice layer 6. After a time sufficient to freeze on the surface of the tubes 4 of the ice layer of the required thickness h, the ice crossing is ready for operation.

The way to create icy crossing, aim to build on ice, add-ons, characterized in that the superstructure is formed by a steel pipe, is lowered vertically to the bottom of the pool through the through-hole formed in the ice cover at both ends of the crossing along its entire length, and the bottom end of the tube is welded, and its upper end is above the ice surface.

 

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