文章根据高能量密度爆炸的辐射流体动力学计算与TNT装药爆炸计算的结果，对二类爆炸波系的形成发展，爆炸近区、远区的物理特征和爆炸作用物理模拟问题进行了研究，得出了对防护工程比较重要的几点结论。同时对于同两类爆炸引起的次生洪水波灾害进行了探讨，阐明了系统开展洪水波防护研究的重要意义。

Based on results of radiate-hydrodynamic and TNT charge hydrodynamic blast wave calculations, the physical characteristic in close- in and distance regions of two kinds of explosions and the development of different blast wave systems are studied. Some important conclusions for protection engineering are obtained. Also, flood wave disasters due to two kind explosions are discussed and great meaning of protection engineering for flood wave are described.