METHOD OF DESTRUCTION OF ICE COVER Russian patent published in 1998 - IPC

FIELD: ice- breaking equipment. SUBSTANCE: method consists in the fact that several charges are placed under ice, which are blasted in time intervals equal to the time of passage of flexural- gravitational wave from the point of burst of the previous charge to the point of burst of the subsequent charge. Additionally installed on ice are explosive charges that are blasted simultaneously with the blast of the charges installed under the ice cover. Each charge located on the ice cover is installed at a distance from the charge located under the ice cover equal to half the length of flexural- gravitational wave. The description gives the dependence for calculation of flexural-gravitational wavelength. EFFECT: increased amplitude of flexural-gravitational wave, enhanced efficiency of destruction of ice cover by bursts. 2 dwg