以防护工程中分配层的设计为研究对象，总结分析了分配层的研究现状以及存在的问题，认为理想的分配层应满足安全可靠、经济合理、工艺可行、结构和材料可靠等条件，应具备足够的抗静压强度和一定的抗冲击载荷强度，能够最大程度地削弱入射应力波强度并充分吸收爆炸产生的能量，并且具备抵御二次或多次爆炸冲击的功能。对今后分配层设计中亟待解决的问题及其发展趋势进行了初步探讨，研究表明，今后一段时间内分配层的材料还是以混凝土、普通砂土等为主，分配层结构应采用分层结构和含空壳结构相结合的结构。研究结果为今后防护工程中分配层的研究和设计提供一定的参考。

Aimed at the design of distribution layer in defense works, the status and problems involving distribution research were summarized and analyzed. The perfect distribution layer should be safe, economical, practicable, and reliable, and have enough static compressive strength and good resistance to the impact, which should weaken the stress wave strength and absorb the energy deriving from explosion to the greatest extent under the condition of repeated impact loadings. And some issues that need to be resolved and the development tendency in the design of distribution layer were discussed. The results show that the main materials in the distribution layer are still concrete or soil at the present stage and days to come, and the perfect structure should be the combination of layered structure and cavities-contained structure. All those could give a reference to the design of advanced distribution layer in defense works.