The experimental results of the zoned phenomenon and the initial patterns for the fire in the long narrow and combinatory confined spaces are introduced in this paper.

• 主要介绍地下狭长与组合受限空间油料介质火灾分区现象、初期火灾主要模式模拟实验研究结果与讨论;地下组合受限空间火灾呈现出特殊的分区现象。