Analysis of collapse factors of stone wall of Komine Castle by exploration of ground surface, elastic wave and ground penetrating radar

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  • 表面波・弾性波・地中レーダ探査による小峰城石垣の崩壊原因の分析
  • ヒョウメンハ ・ ダンセイハ ・ チチュウ レーダ タンサ ニ ヨル コミネジョウ イシガキ ノ ホウカイ ゲンイン ノ ブンセキ

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The Komine Castle is located in Shirakawa City in Fukushima Prefecture. Its stone walls collapsed at nine sites be-cause of the Main shock of the 2011 Great East Japan Earthquake. In addition, deformation such as bulging occurred at six sites. Moreover, one more stone wall fell down because of the aftershock. In particular, the damage on the south side of Honmaru (the main of a castle) was the most serious. Although it was restored as before, the reasons why it collapsed had not been revealed. In this study, three explorations were conduct-ed in order to clarify the causes of the damage: (1) Surface wave exploration,(2) Elastic wave exploration, and (3) Ground penetrating radar.

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