Field study on the damages of a well due to the Great East Japan Earthquake

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  • OHTOSHI Kunio
    Research and Education Faculty, Natural Science Cluster, Agriculture Unit, Kochi University
  • HARA Tadashi
    Research and Education Faculty, Natural Science Cluster, Agriculture Unit, Kochi University
  • KUBO Atsuki
    Research and Education Faculty, Natural Science Cluster, Science Unit, Kochi University
  • UENO Maiko
    Graduate School of Integrated Arts and Sciences, Kochi University
  • IWAHARA Hirohiko
    Shikoku Research Institute Inc.
  • KAWAMURA Kyosuke
    Zeolite Co., Ltd

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  • 東日本大震災における井戸被害についての現地調査
  • ヒガシニホン ダイシンサイ ニ オケル イド ヒガイ ニ ツイテ ノ ゲンチ チョウサ

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Abstract

The prolonged interruption of city water supply caused by the Great East Japan Earthquake had severe influences on the daily life of citizens and the economic activities in the quake-hit area. Thus the necessity for alternative water supply system that can complement the existing city waterworks is being recognized. In this study, field tests were conducted on water wells suffered by the compound forces of vibration and tsunami in order to investigate the ground vibration properties, damage in the well structures, and water pumping ability. As a result, no functional losses of the wells were found. This result suggests the technical possibility of constructing an alternative water supply system that utilizes the groundwater as measures against mega-earthquake disaster.

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