2016年
Tunnel deformation mode and loading magnitude during large earthquake
ITA-AITES World Tunnel Congress 2016, WTC 2016
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- ,
- 巻
- 2
- 号
- 開始ページ
- 893
- 終了ページ
- 901
- 記述言語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
Rock tunnels suffered severe damage from recent large earthquakes in Japan, despite the empirical knowledge that tunnels tolerate earthquakes better than surface structures. Seismic design for rock tunnels have therefore become a fascinating subject for many tunnel engineers. However, even basic behavior, including deformation mode and loading magnitude for hard-rock TBM tunnels and conventional ones during earthquake, has not been fully understood due to lack of actual seismic data; while EPB and slurry TBM tunnels take account of seismic design in Japan if needed. This study conducted a dynamic measurement in an actual road tunnel constructed in rock. The strongest aftershock of "the 2011 off the Pacific coast of Tohoku Earthquake" (M =7.1) occurred during the measurement, providing precious data to examine deformation mode of the tunnel. Considering the acquired data, numerical analysis was also performed to calculate loading magnitude to cause fatal fracture of tunnel lining during earthquake. w
- リンク情報
- ID情報
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- SCOPUS ID : 84976443409