Numerical Simulation and Experimental Study on Single Point Blasting of Ice Jam of Heilongjiang River Based on ANSYS/LSDYNA

Based on the thickness of common ice layer in Heilongjiang Basin, explosions featuring different methods firing, thicknesses layer, and distances between explosive are hereby simulated using ANSYS/LSDYNA software. The most suitable blasting scheme after field test verification is obtained, it concluded through comparison that central ignition produces best effect largest volume radius when explosion fired under ice. A larger indicates a worse effect, number packs should be used reasonably to achieve effect. An blast does not finish at once, but experiences energy transfer form waves. case distance about L = 150 cm. shallower depth river is, more powerful becomes obvious becomes. blasted maximum temperature day stable positive, which texture sheet maintains its hardness high efficiency.