With the increasing installation cases of underground explosive facilities (e.g., ammunition magazines, hydrogen tanks, etc.) in urban areas in recent years, the risk of internal explosions is also increasing. However, few studies on the measures for reducing damage by the ground vibration have been conducted except for maintaining safety distance. In this study, a method for attenuating the vibration propagated outward by installing a blast-proof panel was numerically and experimentally investigated. Two cubical reinforced concrete structures were manufactured according to the concrete strength and a blast-proof panel was installed on only one side of the structure. Then, acceleration sensors were installed on the external surface to evaluate the propagation of vibration outward depending on the installation of a blast-proof panel. Before a field experiment, a preliminary numerical simulation was performed. The results showed that the acceleration propagated outward could be effectively reduced by installing a blast-proof panel. Even though the performance of a blast-proof panel on vibration reduction was also investigated in the field experiment, significantly larger absolute accelerations were estimated due to the different experimental conditions. Finally, the vibration reduction effect of the blast-proof panel was numerically evaluated according to its thickness and the internal explosion load. A blast-proof panel more effectively reduced the acceleration propagated outward as its thickness increased and the explosion load decreased.

近年来，随着城市地区地下爆炸设施（如弹药库、氢气罐等）安装案例的增多，发生内部爆炸的风险也越来越大。然而，除了保持安全距离外，关于减少地面振动破坏的措施的研究很少。在这项研究中，通过安装防爆板来衰减向外传播的振动的方法进行了数值和实验研究。根据混凝土强度制造了两个立方体钢筋混凝土结构，并且仅在结构的一侧安装了防爆板。然后，加速度传感器安装在外表面上，以根据防爆板的安装来评估振动的向外传播。在现场试验之前，进行了初步的数值模拟。结果表明，安装防爆板可以有效降低向外传播的加速度。尽管在现场实验中也研究了防爆板的减振性能，但由于不同的实验条件，估计出的绝对加速度明显更大。最后，根据防爆板的厚度和内爆载荷对防爆板的减振效果进行数值评价。防爆板随着其厚度的增加和爆炸载荷的降低，更有效地降低了向外传播的加速度。结果表明，安装防爆板可以有效降低向外传播的加速度。尽管在现场实验中也研究了防爆板的减振性能，但由于不同的实验条件，估计出的绝对加速度明显更大。最后，根据防爆板的厚度和内爆载荷对防爆板的减振效果进行数值评价。防爆板随着其厚度的增加和爆炸载荷的降低，更有效地降低了向外传播的加速度。结果表明，安装防爆板可以有效降低向外传播的加速度。尽管在现场实验中也研究了防爆板的减振性能，但由于不同的实验条件，估计出的绝对加速度明显更大。最后，根据防爆板的厚度和内爆载荷对防爆板的减振效果进行数值评价。防爆板随着其厚度的增加和爆炸载荷的降低，更有效地降低了向外传播的加速度。由于不同的实验条件，估计出明显更大的绝对加速度。最后，根据防爆板的厚度和内爆载荷对防爆板的减振效果进行数值评价。防爆板随着其厚度的增加和爆炸载荷的降低，更有效地降低了向外传播的加速度。由于不同的实验条件，估计出明显更大的绝对加速度。最后，根据防爆板的厚度和内爆载荷对防爆板的减振效果进行数值评价。防爆板随着其厚度的增加和爆炸载荷的降低，更有效地降低了向外传播的加速度。