METHOD OF INCREASING CARRYING CAPACITY OF ICE COVER Russian patent published in 2018 - IPC E01D15/14 

FIELD: construction.

SUBSTANCE: carrying capacity of the crossing ice cover is increased by means of steel pipes lowered vertically to the basin bottom via through openings formed in the ice cover along both edges of the crossing along its entire length. The bottom end of the pipe is made welded, and its upper end projects above the ice surface. The pipes are made in the form of telescopic supports. The connection section of the mobile element of the telescopic support with the fixed one is equipped with a fragment of a coaxial cylinder freely rotating about the vertical symmetry axis of the movable element, the length of which must be not less than the maximum difference in the water level in the basin. On its surface, a screw stud in the form of a two-thread screw is installed. The diameter of the pipes of the mobile, i.e. upper, element must be larger than the fixed, i.e. lower, element, and the ends of the two-thread screws are equipped with cutters.

EFFECT: increasing the carrying capacity.

2 dwg