EVALUATION OF PIPING PROGRESSION IN RIVER LEVEES BASED ON SUFACE GEOMETRIC INFORMATION

• OKAMURA Mitsu

  愛媛大学 大学院理工学研究科

Bibliographic Information

Other Title

• 堤体表面形状変化に基づく河川堤防のパイピング進行度評価

Abstract

This paper describes results of centrifuge tests aiming at modeling subsidence of levee slope surface where backward erosion piping undergoes during flooding events. The shape and size of the subsided trough is successfully correlated with location and size of piping in the levee or foundation soil. This model is applied to predict the location of piping in a levee where sand volcanos appeared during recent flooding events. DEM of the levee was obtained and troughs on the slope were detected near the sand volcanos. The predicted pipes were confirmed by penetration tests which directly detected loosend soil locations.

Journal

• Intelligence, Informatics and Infrastructure

  Intelligence, Informatics and Infrastructure 1 (J1), 429-436, 2020-11-11

  Japan Society of Civil Engineers

Keywords

• Used case
• river levee
• backward erosion piping
• maintenance
• DEM

Details

• CRID: 1391693801406899584
• NII Article ID: 130007940759
• DOI: 10.11532/jsceiii.1.j1_429
• ISSN: 24359262
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed