FIELD: blasting works.
SUBSTANCE: invention relates to methods intended for killing shock wave in underwater blasting operations. Proposed method consists in setting curtains of air bubbles. Curtain of air bubbles is produced from hollow glass microspheres premixed with fluid in amount of 10% to 30% of its volume for fluid to be weightened to density of 1.2-1.3 g/cm3 and higher. Fluid is used which, after cross-linking, has viscoelastic properties and relaxation period at straining effects equal to at least hydraulic shock wave effect time interval. Then mix is placed into soft container and arranged above explosive charge.
EFFECT: higher safety of blasting works underwater due to reliable localisation of explosion zone.
1 dwg
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| 0 |
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