Experimental Study on Stability of Gabion Retaining Wall Under the Influence of Earthquake and Rainfall – Verification of Tenacity of Gabion Retaining Wall –
アイテムタイプ
紀要論文 / Departmental Bulletin Paper
言語
日本語
キーワード
蛇籠, 擁壁, 地震, 降雨, 模型実験, 残留変形
Keyword
Gabion, Retaining wall, Earthquake, Rainfall, Model test, Residual deformation
In this study, based on the damage survey in Nepal, shake table tests and rainfall experiments using a typical gabion retaining wall model in Nepal and concrete retaining wall were conducted to investigate the influence on earthquake and rainfall. In the model test, the same two retaining wall models with slope model grounds behind the retaining wall models were constructed in rigid soil container. Then, the model tests containing shake table test after preceding rainfall and rainfall test after shaking were simultaneously performed to confirm difference of the damage aspects caused by these patterns. The same tendency on deformation mode of gabion retaining wall was confirmed regardless of the order by rainfall and earthquake. As for the collapse of the retaining wall, though the concrete retaining wall collapsed suddenly during shaking, the gabion retaining wall collapsed after shaking for a while in case of shake test after the preceding rainfall, and exhibited so-called tenacity.
雑誌名
防災科学技術研究所研究資料
雑誌名(英)
Technical Note of the National Research Institute for Earth Science and Disaster Resilience