Development of a New Scour Detector that Enables Monitoring of Pier Soundness

JR East is constantly monitoring inclination angle of piers at risk of scour under flood conditions using scour detectors. Once that inclination exceeds a predetermined value, train operation control such as stopping trains and limiting speed is conducted. Scour can, however, gradually proceed without inclination of piers, with inclination suddenly occurring at a certain point, so constant monitoring of the soundness of piers is desirable. In light of that, the authors are working in this research and development (R&D) project to develop a new scour detector that has a monitoring function for pier soundness based on indicators such as train-induced vibration in addition to the inclination detection function. The authors have completed verification of the inclination detection function, and verification is currently underway on a method of assessing soundness of piers using train-induced vibration and microtremors under flood conditions based on measurement data. A new practical scour detection system based on the results of this research has been deployed from fiscal 2013.

• Record URL:
  https://www.jreast.co.jp/e/development/tech/pdf_27/Tec-27-53-58eng.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/51815943
• Supplemental Notes:
  • Abstract used with permission of the East Japan Railway Company.
• Authors:
  • Keyaki, Takenori
  • Suzuki, Osamu
• Publication Date: 2013

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 53-58
• Serial:
  • JR East Technical Review
  • Issue Number: 27
  • Publisher: East Japan Railway Culture Foundation
  • ISSN: 1347-8907
  • Serial URL: https://www.jreast.co.jp/e/development/tech/

Subject/Index Terms

• TRT Terms: Bridge piers; Detectors; Floods; Foundations; Monitoring; Scour; Train operations; Vibration
• Subject Areas: Bridges and other structures; Hydraulics and Hydrology; Railroads; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 01554655
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 26 2015 9:53AM