“…The anti-blast design of buildings should first obtain blast loads of buildings, in the past, scholars pay more attention to spherical charges 4 , 5 and the blast loads of flat plates 6 , 7 , the widely used empirical formulas were proposed by Kingery and Bulmash 8 , which were also written into design manuals 9 and numerical programs 10 , however, these empirical formulas differ significantly in the near-field blasts, which is often attributed to the variability of blast waves due to the physical mechanism for this phenomenon is not clearly understood 11 , 12 . However, the representation method of scaled distance in the empirical formula defaults to the blast waves as spherical waves, For the real scene of bomb attacks, the blast waves in near-field blasts which poses a great threat to buildings are usually non-spherical 13 , owing to the shape of charges, even spherical charges are difficult to detonate symmetrically in actual tests 14 .…”