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本文以成层式人防工程结构为背景,采用一种由泡沫粘土烧结而成的球形空壳颗粒材料构建分配层,通过大比尺野外化爆试验,对比分析了集中装药载荷下,常规黄沙分配层和空壳颗粒材料分配层的抗爆吸能效果。结果表明,本文使用的空壳颗粒材料兼具多孔材料高效削波吸能和壳体结构强度高的双重特性,不但对爆炸波有很强的衰减作用,且具有经受多次打击的能力。与黄沙相比,空壳颗粒材料构造的分配层对应力波峰值的衰减要高出40%以上,因此可以有效地提高地下防护结构的安全,具有较高的推广价值和广阔的应用前景。
In this paper, based on the layered civil air defense engineering structure, a kind of spherical hollow shell particle material sintered by foam clay was used to construct the distribution layer. Through the explosion test of large scale outdoor field, Antiknock Energy Absorption Effect of Distribution Layer of Sand and Shell Particles. The results show that the hollow shell particles used in this paper have the dual characteristics of highly efficient cutting energy absorption and high shell structure strength of porous materials. They not only have a strong attenuation effect on the explosion wave, but also have the ability to withstand multiple blows. Compared with the yellow sand, the distribution layer of the shell particle material structure can reduce the peak value of stress wave more than 40%, so it can effectively improve the safety of the underground protective structure, which has high popularization value and broad application prospect.