| 講演要旨(和文) | | 地下に存在する可能性が高い元寇防塁の追跡調査を目的として，九州大学箱崎キャンパス内で地中レーダ探査を実施した．その結果，埋設管や旧地表面を含む多くの反射応答を確認することができた．これらの反射応答から，その分布や形状に条件を付けて異常箇所の選別を行なった結果，各測線で1または2箇所に絞り込むことができた．この最終的に選別した異常箇所を結んで，元寇防塁の延長線を推定した． |
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| | 講演要旨(英文) | | The Genko Borui was a defensive stone wall constructed along Hakata Bay in Japan to prepare for an attack by Mongol forces of the Yuan dynasty after the first attack of 1274. In order to prove the existence of Genko Borui and to delineate its location, ground penetrating radar survey was carried out at Hakozaki Campus of Kyushu University, Fukuoka, Japan. As the result of GPR survey, a lot of anomalies due to buried objects were detected. GPR anomalies due to Genko Borui were selected by using the criteria of depth, thickness and width of anomalous reflections. Finally continuous wall line was estimated. |
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