The strains on different situations of reserved supports were measured to further understand the dynamic transmogrification process and demolition process of the high-large reinforced concrete chimney during collapsing process. The strain-time curves of different testing points were obtained during the blasting process. The stress variation law and demolition law of the reserved supports of the high-large reinforced concrete chimney during collapsing process were obtained by strain analysis.%为了进一步认识高大钢筋混凝土烟囱在倾倒过程中预留支撑部位的动态受力变形过程及其破坏过程,对该部位不同位置的应变进行了测量,获得该部位不同测点在爆破拆除过程中的应变一时间曲线.通过应变分析,得到了高大钢筋混凝土烟囱倾倒过程中预留支撑部位的应力变化规律和破坏规律.
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