Method for closing cracks in ice massif

FIELD: construction.

SUBSTANCE: in ice massif, at certain distance L from crack edge an inclined cut is made at angle more than 45 degrees towards crack and at edges of this inclined cut vertical cuts are made perpendicular to crack propagation direction so that ice slab cut in this way slips under gravity along inclined surface and closes the crack. After crack closure depression formed at surface of ice structure is filled with snow and compacted until it acquired required strength.

EFFECT: crack closure method allows reliable blocking of the crack upper part, smoothening of formed depression by snow filling and compaction and ensuring strength characteristics for damaged surface area of the ice structure.

3 dwg


The invention relates to nedovedenie and lithotechnics and can be used to combat the cracks on roads, marinas, airfields, and other facilities built on the glaciers and icebergs.

The known method of repairing cracks and passages, consisting in the use of mats [1]. This solution requires a significant amount of material, and is used when the ice structure is in close proximity to the forest. For repair of cracks at the airport, located on the glacier or iceberg may require a significant amount of construction material.

There is a method recommended by the Manual ice airfields located on the glaciers. Offered in case of occurrence of cracks on them and the inability to fill them with snow or broken ice is used, the object will be moved to a new location on the glacier, where cracks are absent [2]. The disadvantage is the need to actually re-build the ice structure.

Known taken as the prototype of a way of dealing with the crack when the crack is filled with snow, and the snow is compacted using tracked vehicles [3]. The disadvantage of this method is that the glaciers and icebergs, as a rule, are formed deep cracks, sometimes up to several hundred meters in depth, which physically is not possible to fall asleep in the snow.

The aim of the present invention is to eliminate gaps of the working surface of the ice facilities, such as runways (runway) ice airfield, ice roads, ice pier, etc. caused by cracks in the ice array.

The technical result consists in reducing fall asleep volume.

The invention is illustrated in the drawings, depicted in figure 1-3, on which are marked: 1 - ice pack, 2 - crack, 3 - inclined slot, 4 - cut a block of ice, 5 - vertical sections of ice, 6 - cavity.

The invention is implemented as follows.

In the array of ice (1), at a distance L from the edge of the crack (2) is inclined slot (3) at an angle more than 45 degrees in the direction of the crack. On the edge of this inclined slotted ice-cutter (such as a thermal ice-cutter GTR-1000 [4], or other structures) are made vertical cuts (5), perpendicular to the propagation of cracks that cut off so the ice block (4) under the action of gravity slid down the sloping surface and closed a crack, as shown in figure 2. The angle of the slits is selected from the considerations that would on the one hand to provide reliable slippage cut block of ice, on the other hand, what would a block of ice not scored high speed in contact with the opposite side of the crack and not collapsed. Forming is the lasting on the surface of the ice structures after the fracture blocks of ice cavity (6) is filled with snow, stamped and uchityvaetsya to give it the necessary strength (figure 3). The distance from the edge of the crack to the slot indicated in figure 1 by the letter L should be greater than the width of the crack and is chosen in such a way that the strength of the block cracked after lowering block of ice, and fill the cavities (6) snow and/or broken ice (figure 3) has withstood the estimated surface structures load.

The proposed method of sealing cracks ensures reliable locking of the upper section of the crack, by allowing the spreading and compaction of snow to align the formed cavity and to provide the necessary strength characteristics of the damaged portion of the surface of the ice structure.

As shown by the experiment, the economic effect from the use of the proposed method consists of saving time and funds to complete the filling of the cracks with snow and/or broken ice, and in case of impossibility of fill for the construction of a new ice facilities (runway, icy roads, and other objects).

Sources of information

1. Design, construction and maintenance of winter roads in Siberia and North-East of the USSR. VSN 137-89 Interstroy of the USSR, Moscow, 1991.

2. Manual civil airfields of the Russian Federation (RAGA RF-94). Moscow Air transport 1996.

3. Vassil is s NB, Kulchitsky VA; Makagonov VA Airfield pavement. Modern look. Fizmatlit, 2002.

4. Morev VA Ship the device to break up the ice. Copyright certificate for invention №844465. 1981.

Method of sealing cracks in the ice pack, which consists in their sleep by snow and his seal, characterized in that on one of the edges of the crack at a distance greater than its width, make an angled cut in the ice at an angle more than 45° in the direction of the cracks at the edges of the inclined slots are vertical slits perpendicular to the propagation of cracks, and then make the filling the resulting cavity with snow or broken ice.


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