| 摘要 |
FIELD: blasting operations. ^ SUBSTANCE: method involves supply of gas-air mixture under lower surface of ice cover, and its explosion. At that, gas-air mixture is supplied to a groove made from lower surface of ice cover. Besides, a float with detonator with wireless control is installed in the above groove. ^ EFFECT: improving destruction efficiency of solid ice cover, surface area of ice cover, on which explosion of gas-air mixture acts. ^ 1 dwg |
