METHOD FOR TEMPORARY WINTER BRIDGE CONSTRUCTION Russian patent published in 2007 - IPC E01D15/14 

Abstract RU 2308562 C2

FIELD: bridge construction, particularly floating bridges, for example, pontoon bridges.

SUBSTANCE: method involves unloading land-based and river-based pontoon sections on ice, expanding the pontoon sections in temporary bridge location area; sealing pontoons of each pontoon section by means of top and bottom jointing means; moving each pontoon section to temporary bridge construction site over ice; serially jointing pontoon sections with each other along temporary bridge length and breaking ice by blasting charges spaced from bridge axis. Longitudinal grooves are created in ice from each bridge side with the use of ice-cutters so that ice thickness in groove bottom area is not more than 10 cm. After that elongated charges including several detonating fuse strings are laid in the grooves. The grooves are filled with wet snow or water and elongated charges are blasted to break ice in each groove. After that ice under bridge sections is broken by vehicle movement over the bridge.

EFFECT: decreased time and increased safety of temporary bridge construction.

4 dwg

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RU 2 308 562 C2

Authors

Malyshev Aleksandr Alekseevich

Khmeljuk Petr Sergeevich

Dates

2007-10-20Published

2005-12-27Filed