Numerical Simulation of Interrelation of Explosive Parameters and Blasting Fragmentation  

作　　者：刘殿书 于滨 谢夫海 

出　　处：《International Journal of Mining Science and Technology》1998年第2期157-161,共5页矿业科学技术学报（英文版）

摘　　要：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.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.

关 键 词：BLASTING FRAGMENTATION EXPLOSIVE PARAMETER DAMAGE model 

分 类 号：TD235[矿业工程—矿井建设]