FIELD: ice breaking equipment, particularly means for ice jam damaging and for prevention of floods caused by river ice jams.
SUBSTANCE: method involves moving low-temperature source above ice jam along jam edge in proximity thereto at low speed to provide low-temperature treatment of ice jam edge; generating gravity waves having maximal amplitude by ship translating along jam edge.
EFFECT: increased efficiency of ice jam breaking due to increased brittleness of upper ice layer surfaces.
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| METHOD FOR MAINTENANCE OF SPEED OF HOVERCRAFT FOR RESONANCE BREAK OF ICE COVER | 1988 |
|
RU2111888C1 |
