INVENTORY PILE-SCREW ABUTMENT OF HORIZONTAL STABILITY OF SINGLE-TRACK COLLAPSIBLE ROAD BRIDGE SARM-M FOR RIVERS WITH HIGH FLOODS Russian patent published in 2025 - IPC E01D19/02 

FIELD: construction of bridges.

SUBSTANCE: invention relates to arrangement of temporary bridges and can be used to ensure horizontal stability of single-track collapsible road bridge SARM-M at action on its abutments and bank floodplain supports of high and intense floods. Inventory pile-screw abutment of single-track collapsible road bridge SARM-M for rivers with high floods includes grillage formed by two interconnected crossbars, in which there are four interfaces with four screw piles, resting on grillage crossbar of upper support with beam trolley attached thereto. Each screw pile is made with two turns, the distance between which along the pile shaft length is one and a half diameters. Piles are screwed into the bank soil at a depth with the arrangement of the piles in the soil below the level of the abutment undercutting.

EFFECT: providing horizontal stability, including its end parts, at formation of washouts of abutments during passage of high, including catastrophic, floods and breakthrough wave.

1 cl, 3 dwg