東北地方太平洋沖地震における利根川流域の液状化被害

• 先名 重樹

  防災科学技術研究所、社会防災システム研究領域

• 長谷川 信介

  防災科学技術研究所、社会防災システム研究領域

• 前田 宜浩

  防災科学技術研究所、社会防災システム研究領域

• 藤原 広行

  防災科学技術研究所、社会防災システム研究領域

書誌事項

タイトル別名

• Liquefaction Damage of The Tonegawa Basin Caused by The 2011 off the Pacific coast of Tohoku Earthquake

抄録

Significant liquefaction affected the Tonegawa basin as well as the Tokyo-bay area during the 2011 Tohoku-oki earthquake. This liquefaction caused undermining many house foundations and destroying infrastructure around these areas. In this report, we focus on the pattern of liquefaction in the Tonegawa basin and the probability of liquefaction occurrence in Kanto district during the 2011 Tohoku-oki earthquake. First we revealed the liquefaction pattern in the Tonegawa basin based on the field survey at 29 municipalities in Chiba and Ibaraki prefectures. The evidences of liquefaction were mainly found in the artificial ground created from the sea, pond, and river. Second we calculate the probability of liquefaction occurrence during the 2011 Tohoku-oki earthquake for each geomorphologic classification unit in whole Kanto district according to a variety of survey results including our own. The liquefaction probabilities of the 2011 Tohoku-oki earthquake are much larger than those of past earthquakes caused liquefaction.

収録刊行物

• 日本地震工学会論文集

  日本地震工学会論文集 12 (5), 5_143-5_162, 2012

  公益社団法人 日本地震工学会

キーワード

• 液状化被害
• 利根川流域
• 微地形区分
• 人工改変地
• 液状化発生確率

詳細情報

• CRID: 1390282680334127104
• NII論文ID: 130002152989
• DOI: 10.5610/jaee.12.5_143
• ISSN: 18846246
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可