2011年東北地方太平洋沖地震における斜面に関わる道路構造物の被害分析  [in Japanese] DAMAGE ASSESSMENT ON ROAD STRUCTURES DUE TO THE SLOPE FAILURES IN THE 2011 OFF THE PACIFIC COAST OF TOHOKU EARTHQUAKE  [in Japanese]

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Abstract

2011年東北地方太平洋沖地震では道路構造物に甚大な被害が発生したが,それらの要因としては津波による作用だけでなく斜面災害に随伴した被害も数多く報告されている.本研究では,東北地方太平洋沖地震の際の道路構造物の被災情報を基に,地震動による被災データから斜面に関わる道路構造物の被害を抽出し,それらと<i>PGA</i>,<i>PGV</i>,及び計測震度との関係について明らかにした.また,先行研究で示された2008年岩手・宮城内陸地震時の斜面に関わる道路構造物の被害関数と比較し,本調査データとの関係について論じた.

 This paper describes the damage assessment on road structures due to the slope failures in the 2011 off the Pacific coast of Tohoku Earthquake. We classified the failure modes for the 43 database on the damage of road structures due to the slope failures and analyzed them from the view point of the peak ground acceleration, the peak ground velocity and the seismic intencity. In addition, damage functions on the failures of the road structures due to the slope failures in the 2008 Iwate-Miyagi Nairiku Earthquake are verified by comparing the derived results from this study with the values from the functions.

Journal

  • Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

    Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 68(4), I_1315-I_1325, 2012

    Japan Society of Civil Engineers

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