DAMAGE MECHANISMS OF MOUNTAIN TUNNELS IN THE 2007 NIIGATA CHUETSU-OKI EARTHQUAKE: INSIGHT FROM SAR INTERFEROMETRY

• TSUJI Takeshi

  京都大学大学院 工学研究科社会基盤工学専攻

• YAMAMOTO Katsuya

  三菱商事石油開発株式会社

• YAMADA Yasuhiro

  京都大学大学院 工学研究科社会基盤工学専攻

• MATSUOKA Toshifumi

  京都大学大学院 工学研究科社会基盤工学専攻

• ASAKURA Toshihiro

  京都大学大学院 工学研究科社会基盤工学専攻

Bibliographic Information

Other Title

• 干渉ＳＡＲ解析による新潟県中越沖地震に伴う山岳トンネル被害メカニズムの解明

Abstract

  Mountain tunnels damaged in the 2007 Chuetsu-oki earthquake were localized around the Tochikubo anticline, 30km southwest of the epicenter, although the tunnels near the epicenter were not much damaged. To examine a behavior of deformation around the damaged tunnels, we analyzed SAR interferometry and mapped the surface displacements associated with the 2007 earthquake. The estimated surface displacements reveal uplift deformation at the Tochikubo anticline. We interpret that the damages to the mountain tunnels were caused by flexural-slip due to uplift of the Tochikubo anticline or amplification of ground vibration due to earthquake directivity.

Journal

• Doboku Gakkai Ronbunshuu C

  Doboku Gakkai Ronbunshuu C 65 (4), 989-997, 2009

  Japan Society of Civil Engineers

Keywords

• tunnel hazard
• 2007 Chuetsu-oki earthquake
• and SAR interferometry

Details

• CRID: 1390282680229375104
• NII Article ID: 130004943070
• DOI: 10.2208/jscejc.65.989
• ISSN: 1880604X
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed