Two-dimension consolidation under the cylindrical converging shock wave has been studied. The major parameters influenced on the explosive consolidation quality are the specific energy,detonation pressure and specific...Two-dimension consolidation under the cylindrical converging shock wave has been studied. The major parameters influenced on the explosive consolidation quality are the specific energy,detonation pressure and specific impulse.It seems to be favourable to improving con- solidation quality by a lower but slightly higher than critical detonation pressure and a high specific impulse.展开更多
Two-dimension consolidation under the cylindrical converging shock wave has been studied. The major parameters influenced on the explosive consolidation quality are the specific energy,detonation pressure and specific...Two-dimension consolidation under the cylindrical converging shock wave has been studied. The major parameters influenced on the explosive consolidation quality are the specific energy,detonation pressure and specific impulse.It seems to be favourable to improving con- solidation quality by a lower but slightly higher than critical detonation pressure and a high specific impulse.展开更多
Numerical simulation of the process of rock fragmentation by blasting with different kinds of explosives is carried out by using the damage model of rock fragmentation and a finite difference program "SHALE"...Numerical simulation of the process of rock fragmentation by blasting with different kinds of explosives is carried out by using the damage model of rock fragmentation and a finite difference program "SHALE". The research shows that the process and pattern of rock fragmentation by blasting vary with the parameters of explosives in the same kind of rock and under the same conditions, and that the effects of stress wave and the detonated gas change clearly. A new conception about the mechanism of blasting is dealt with,i. e. the mechanism of rock blasting fragmentation is related to the explosive parameters as well as the conditions of blasting. The mechanism and process of rock blasting fragmeutation can be influenced or changed by the changes of blasting parameters and conditions. This theory could be used to guide the practice and parameter design of engineering blasting.展开更多
文摘Two-dimension consolidation under the cylindrical converging shock wave has been studied. The major parameters influenced on the explosive consolidation quality are the specific energy,detonation pressure and specific impulse.It seems to be favourable to improving con- solidation quality by a lower but slightly higher than critical detonation pressure and a high specific impulse.
文摘Two-dimension consolidation under the cylindrical converging shock wave has been studied. The major parameters influenced on the explosive consolidation quality are the specific energy,detonation pressure and specific impulse.It seems to be favourable to improving con- solidation quality by a lower but slightly higher than critical detonation pressure and a high specific impulse.
文摘Numerical simulation of the process of rock fragmentation by blasting with different kinds of explosives is carried out by using the damage model of rock fragmentation and a finite difference program "SHALE". The research shows that the process and pattern of rock fragmentation by blasting vary with the parameters of explosives in the same kind of rock and under the same conditions, and that the effects of stress wave and the detonated gas change clearly. A new conception about the mechanism of blasting is dealt with,i. e. the mechanism of rock blasting fragmentation is related to the explosive parameters as well as the conditions of blasting. The mechanism and process of rock blasting fragmeutation can be influenced or changed by the changes of blasting parameters and conditions. This theory could be used to guide the practice and parameter design of engineering blasting.
