Restoration of sequential sedimentation history in coastal area by means of an integrated soil survey technology

2016 Fiscal Year Final Research Report

• Project/Area Number: 26289157
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Geotechnical engineering
• Research Institution: Hokkaido University (2016); Port and Airport Research Institute (2014-2015)
• Principal Investigator: Watabe Yoichi 北海道大学, 工学(系)研究科(研究院), 教授 (00371758)
• Co-Investigator(Kenkyū-buntansha): 佐々 真志 国立研究開発法人港湾空港技術研究所, 地盤研究領域 動土質研究チーム, チームリーダー (10392979) ; 中條 壮大 熊本大学, 自然科学研究科, 助教 (20590871) ; 椋木 俊文 熊本大学, 自然科学研究科, 准教授 (30423651) ; 金子 崇 国立研究開発法人港湾空港技術研究所, 地盤研究領域 土質研究チーム, 研究官 (90649807) ; 山田 文彦 熊本大学, 自然科学研究科, 教授 (60264280)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 堆積形成史 / 表面波探査 / サンプリング / 潮間帯 / 潮下帯 / 干潟 / 浅場

Outline of Final Research Achievements

In this study, by selectively using geophones for exposed ground and hydrophones for submerged ground, the scope of application of MASW (Multi-channel Analysis of Surface Waves) technology was extended when the subsoils of tidalflat/ shallow sea is surveyed. By combining these technologies and simplified sampling and sounding technologies, an integrated and packaged ground survey method is proposed. Using this method, we successfully restored the sedimentation history of the complex subsoil layers in an estuary or an artificial tidalflat. These results can contribute to the interdisciplinary fields of geophysics, coastal engineering, coastal ecology, and geotechnical engineering.

Free Research Field

地盤工学