地盤防災解析研究分野
Geotechnics, Division of Geohazards
都市域の地盤災害学理の構築と防災性能向上への展開
人間活動が集中する都市域では、地震時の地盤液状化、人工・自然斜面崩壊など、地盤災害の危険性が増しています。当研究室では、これらの地盤災害に対する危険度評価技術の高度化や、地盤・構造物系の耐震性能の向上に向け、非線形有効応力法に基づく数値解析や、遠心力載荷装置を用いた模型実験など、あらゆる角度から取組んでいます。主な研究課題は、以下のとおりです。(より詳しくは、研究室紹介へ!)
Towards advancement and application of geotechnics for hazard mitigation in urban area
The rapid development of urban areas originating from plains and lowlands towards hills in the suburbs poses increasing risks in geo-hazards. The potential geo-hazards include soil liquefaction during earthquakes, collapse of artificial cut-and-fill, and slope instability. A series of strategic measures are required for mitigating these geo-hazards and establishing higher performance of geotechnical works.
Various approaches are adopted for achieving these objectives, such as nonlinear effective stress analysis of soil-structure systems constructed on saturated sandy deposits, global modeling of geo-hazards based on the use of GIS and urban geo-data base, experimental studies through geotechnical centrifuge.
●大地震時における地盤・構造物系の被災程度予測
Liquefaction analysis of a gravity type quay wall during earthquakes
●多重せん断機構の概念に基づく土の構成モデルの改良
Evolution of strain space fabric during macroscopic biaxial shear
●遠心模型実験による長継続時間地震動と津波による地盤-構造物系の変形メカニズムの解明
Results of centrifuge model tests for breakwater subjected to tsunami