柔性与刚性分配层防护机理的动光弹试验分析

Dynamic Photoelastic Investigations on Protective Mechanism of Flexible and Rigid Distributed Layer

用动态光弹性模拟试验和分析方法,观察和分析了材料不同的分配层对应力波在结构中传播的影响,比较分析了冲击荷载产生的应力波在洞室结构顶部的传播及相互作用过程,得到指定点处的应力-时间关系曲线,为结构震塌机理的进一步研究和防护结构改进提供参考。

The effect of stress waves with different cushion layers were researched with the dynamic photoelasticity, and propagation and interaction of stress waves in structure were compared under shock load, and stress vs time curves of appointed points were obtained. The experimental results can provide reference to further research on structural spallation and improvement on protective construction.