土介质炸点痕迹反演爆源特征的研究

Reversed analysis of the characteristic features of the explosive sources based on the crater in the soil

论述了土介质炸点痕迹特征参量及其控制影响因素,通过对国内外现有研究成果的再分析和有效利用,得到爆源特征与炸点痕迹特征参量之间的关系。在此基础上,建立利用土介质上的炸点痕迹反演爆源特征的方法,并实现编程计算。通过实例分析说明了该方法的可行性。

The paper would like to present our analysis results of the characteristic features of the explosive sources based on the crater the explosion has resulted in the ground.To our first impression,the most common trace on the site of explosion is the crater in the ground whose shape is often like a cone.The parameters typical of the crater caused by the explosion are quite visible and real in depth,in diameter,in a shape of compressed radius,and so on.More profound analysis let us know many more factors influencing the crater shape,including the physical features of the soil,the location of the explosion devices,the weight of the charge and the explosive types.More specifically speaking,the relationship between the quantity of charge and the location of the explosive sources are the two essential factors for the backlash analysis of the characteristic features of the explosion source in the explosion case study.Based on the experimental and theoretical study,we have established the quantitative relationship of all such typical parameters.Furthermore,we have also brought about the inversion algorithm for the above characteristic features in this regard.Thus,we have divided the whole backlash analysis into two levels in this paper.The primary level of the analysis is oriented to the quantity of the explosive used and the location of the explosion source to be chosen respectively,whereas the second is focused on the weight of explosive to be used actually in closely related to the conic shape of the crater.Truly speaking,the two levels are independent by nature.For the secondary level,the analysis can be done simultaneously with the quantity of the explosives and the location of the explosion source.That is to say,the backlash analysis algorithm can be coded to a calculation program.Through the analysis of the real case,we can find that the result from the backlash analysis is reasonable in the regard to the investigation of explosion cases.That is to say,the backlash analysis method we are discussing here involves a new favorable way for study of the explosion sites.With the accumulation of data on the crater shape formed by the explosion in the soil,it can be concluded that it is possible to further improve the precision of the backlash algorithm.