Method of building ice bridge

FIELD: construction engineering.

SUBSTANCE: effect is ensured by fastening thermosiphons along the designated line of a prospective ice bridge whereto a reinforcing material is attached at design depth. As water is frozen over, ice supports that increase bearing of the bridge, are formed around the thermosiphons, while the frozen-in material is to reinforce an expanded area of an ice bed.

EFFECT: increased bearing of the ice bridge.

3 dwg, 2 cl

 

The invention relates to the construction of roads and can be used to create ice crossing on natural ice.

There is a method of amplification of ice ferries, which consists in laying along the intended path of the terminal metal pipes vertically through holes in the ice. The bottom end of the pipe is pre-brewed, but the top end is made in the form of a cone, stands above the ice surface. Coming inside pipes cold air will cause icing and increases the strength of the connection pipe with the bottom of the pool and ice cover [U.S. Pat. No. 2171331, E01D 15/14, AS 3/06, 2000.02.07].

The disadvantage of this method is that through the upper end of the pipe is left above the ice cover, penetrates not only cool the air, but the snow. This leads to the deterioration of pipes and defrosting part of the ice pillars.

There is a method of amplification of ice ferries, which consists in installing vertically through holes in the ice along and across the axis crossings of steel pipes with welded bottom end [U.S. Pat. No. 2164975, E01D 15/14, E02D 27/52, 2000.04.02].

The disadvantage of this method is that when you travel on the ice crossing pipes located across the axis, preventing the movement, and through the upper end of the pipe is left above the ice cover, penetrates not only cool the air, but the snow. Utopistic to the thawing of the ice pillars.

There is a method of reinforcement ice crossings with the use of high-strength elastic mesh material stacked on the surface of the ice cover along the intended path of the ice crossing. Next, it creates the curb to maintain irrigation water, and covered the required number of reinforced layers by the method of irrigation or sprinkling [application No. 2005115933, 25.05.2005].

It is known that the ice buildup from the bottom occurs continuously throughout the winter. Therefore, simultaneously with an artificial build-up of ice on top (irrigation or sprinkler) is ice buildup on the bottom. The disadvantage of this method is that the reinforcing material in the end is not in the tension and compression zones.

The invention aims to remedy these disadvantages.

The problem is solved in that in the method of creating ice crossings, including the laying of high-strength mesh reinforcing material (e.g., geosynthetic material) along the intended path, prior to the formation of ice on the pond set thermosyphons, which at the project depth is fixed to the reinforcing material. The middle part of the reinforcing material held at the project depth using floats.

The problem is solved also by the fact that use multiple layers of reinforcement.

The method is illustrated in the drawings: figure 1 is a view from the above, figure 2 is a section along a - a and figure 3 - section B-b, where: 1 - the natural ice cover; 2 - thermosyphons; 3 - nevrogennye ice support; 4 - bottom of the reservoir; 5 - water; 6 - float; 7 - reinforcing material; 8 - estimated the level of freezing of the pond.

The method is as follows.

Prior to the formation of ice 1 on the reservoir 5 along the intended path of the future ice crossings in the bottom 4 fix thermosyphons 2. Its design depth, which will be determined by the intended level of freezing of the reservoir 8 to the middle part of the fabric geosynthetic material 7 attach the floats 6. During freezing the water around thermosyphons ice formed a support 3, which increases the carrying capacity of the terminal, and frozen geosynthetic material will reinforce the stretched area of the ice sheet.

1. A method of creating ice crossings, including the laying of high-strength mesh reinforcing material along the intended path, characterized in that prior to the formation of ice on the pond set thermosyphons, which at the project depth is fixed to the reinforcing material, the middle part of which retain at the project depth using floats.

2. The method according to claim 1, characterized in that use multiple layers of reinforcement.



 

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