DEVICE FOR HARDENING ICE CROSSING Russian patent published in 2015 - IPC E01D15/14 

FIELD: construction.

SUBSTANCE: device comprises the ice crossing in which the holes are made throughout the intended route of cargo transportation on its both sides, through which the reinforced concrete units are lowered under ice by means of cables. Discs are fixed to the upper ends of cables. The length of cables is selected in such a way that the ice doesn't rise above the initial position relative to the bottom when flexural-gravity waves occur. The distance between the openings along the crossing is equal to the length of resonant flexural-gravity waves λ_p. The discs are also installed in the middle between them at a distance from them equal to λ_p/2, under the ice. On either sides of the crossing all disks are rigidly connected with strong horizontal beams by means of racks.

EFFECT: hardening of ice crossing.

2 dwg