SUBMERSIBLE RIBBON BRIDGE Russian patent published in 2020 - IPC E01D15/14 

FIELD: construction.

SUBSTANCE: ribbon bridge submerged along length is made composite from coastal and river parts, pontoons of river part are equipped with system of immersion and ascent, consisting of inlet and outlet valves and system of compressed air supply, at the point of docking of river floating and coastal parts there are guide beams of double-tee section fixed vertically by one end at transition part and second one are immersed into bottom of water reservoir, and on extreme pontoons of river surfacing part by roller blocks. For submersion of bridge part of ribbon bridge, deck and bottom coupling devices are opened and river part is kept at axle of axle at that time due to vertical guides, in external water-filled casing due to opening of inlet (for ballast water) and outlet (for air bleeding) valves is supplied ballast water and river part, retained and moving along guide beams, submerged under water, submersion of river part of bridge continues to required and (or possible depth). Surfacing of river part of bridge is performed in the following sequence: discharge (for air bleeding) valves are closed, from system of compressed air supply to external water-filled housing air is supplied, through open inlet (for ballast water) valves water is removed, buoyancy of pontoons is increased, and moving the roller units along the guides, the river part floats to the surface, the deck and bottom coupling devices lock the pontoons of the shore and river part of the bridge due to the closing mechanism.

EFFECT: proposed is a floating bridge used to pass railway rolling stock, wheeled and caterpillar equipment at destruction or reconstruction of capital bridges through wide and deep water obstacles.

1 cl, 9 dwg