Japan Geoscience Union Meeting 2023

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[J] Online Poster

S (Solid Earth Sciences ) » S-VC Volcanology

[S-VC32] Mitigation of volcanic disasters - basic and applied researches

Thu. May 25, 2023 3:30 PM - 5:00 PM Online Poster Zoom Room (3) (Online Poster)

convener:Shinji Takarada(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Yasuhiro Ishimine(Mount Fuji Research Institute, Yamanashi Prefectural Government), Tatsuro Chiba(Asia Air Survey Co., Ltd.), Yousuke Miyagi(National Research Institute for Earth Science and Disaster Resilience)

On-site poster schedule(2023/5/26 17:15-18:45)

3:30 PM - 5:00 PM

[SVC32-P04] Experimental Study of Impact Absorption Effect of Overlying Artificial Pumice Layer
for RC Structure with varying thickness

*Tomohiro Kubo1, Mitsuhiro Yoshimoto1, Ryo Honda1, Tatsuji Nishizawa1, Kohei Tateyama2, Hiroyuki Yamada3 (1. Mount Fuji Research Institute, 2.Muroran Institute of Technology, 3.National Defense Academy)

Keywords:Volcanic disaster mitigation, Shelter, Impact resistance

After an amendment of the Act on Special Measures for Active Volcanoes in 2015, the evacuation shelter owners are considering of the reinforcement against about ballistic ejecta. However, it is less of the information of the reinforced method. Therefore, we conduct the experiment of the impact absorption effect of overlying artificial pumice layer for the wooden cabin and RC structure.
In addition to Kubo et al.,(2022), we conducted an experiment with test pieces that are thickness of 220mm and has/not the reinforcing steel bar. As a result, we found the effective of thickness. On the other hand, we found that the test pieces without reinforcing steel bar showed no effect of overlying artificial pumice layer.