STUDY ON NEW RESTORED TECHNOLOGY FOR LARGE-SCALE SEDIMENT DISASTER

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  • 大規模土砂災害に対応した新しい災害復旧技術に関する研究
  • ダイキボ ドシャ サイガイ ニ タイオウ シタ アタラシイ サイガイ フッキュウ ギジュツ ニ カンスル ケンキュウ

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 Recently, large-scale earth works structures sometimes suffer major damage by earthquakes and other natural disasters.<br> Early recovery from the breakdown of the transportation system which is caused by disasters is desired. At the same time, depending on the situation of disaster area, it is also required to choose the construction method which enable the transportation system to recover efficiently and quickly.<br> According to past documentary records, large sandbags were often chosen for temporary restoration in the disaster site. It is because they can cope with various situation flexibly and be removed easily. However, large sandbags are temporary structures. So they need to be removed after use. This process makes the restoration period longer. If we can reuse them for fully restoration, it is effective for shortening a restoration period and constructing safely.<br> In this research, we confirm the deformation behavior of large sandbags by geotechnical centrifuge test and real scale experimental test. And get the possibility to utilize them as a permanent structure.

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