METHOD OF TEMPORARY ROADWAY LAYING ON SNOW-, WATER-ICE SURFACE AND TOWING DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2019 - IPC E01C9/08 

FIELD: machine building.

SUBSTANCE: method of laying temporary road surface on snow-, water-ice surface and trailing device for its implementation can be used for laying snow-ice road pavement without preparation of soil base on the area, complicated by swept snow swamps, water obstacles, in winter conditions and off-season. Method comprises movement of a head vehicle coupling in the form of amphibious aerosleys and a towing device on the basis of a ski boat, during which a track is formed and destruction of hummocks by the head vehicle owing to the pressure of its housing edge, with subsequent hardening of road bed due to operation of hitch mechanism. Trailed device reduces snow layer above water-ice composition of road bed, then its hardening is expected due to freezing to repeated movement of head vehicle and towing device or to movement of other vehicles. Trailing device comprises a sliding surface elongated in direction of movement with side walls made in the form of a ski boat. There is air supply device with through opening (3) on roadway along width of ski boat, with output of air flow with snow outside due to presence of side holes (7) on outer walls of through opening (3), with axial fan, which blades (4) are able to cover width of opening (3) of ski-boat during rotation and to create direction of air flow to roadway. Opening (3) of the ski boat divides it into positively floating nasal (1) and rear (2) parts.

EFFECT: efficient overcoming of ice, snow and water obstacles, reduction of energy consumption for road surface formation on snow-, water-ice surface by reducing re-grinding of road base and use of its frost effect, as well as by increasing speed of equipment movement.

2 cl, 2 dwg