Gravel Movement on a Sand-Gravel Mixed Beach Based on RFID technique

• IYAGAWA Ryuichi

  The University of Tokyo

• TAKAGAWA Tomohiro

  Port and Airport Research Institute

• SATO Shinji

  The University of Tokyo

• NAGASAKA Yosuke

  The University of Tokyo

• YAMANAKA Yusuke

  The University of Tokyo

Bibliographic Information

Other Title

• RFIDを用いた砂礫混合海浜における礫の移動機構の解明

Abstract

Gravel movement on sand-gravel mixed beaches was investigated by using RFID technique which detects individual gravel tagged with a passive IC tag. At the same time, variation of the foreshore beach topography was recorded by RTK-GPS. Gravel movement mechanism and the corresponding beach face change were studied on the basis of seven field surveys performed in the period from January to February 2012. On the target beach, storm waves tended to transport many gravels onshore and develop a steep beach face. In contrast, downwash motion by moderate waves moved gravels offshore although a small amount of gravels was exchanged across the shoreline simultaneously. The movement of gravels on the foreshore appeared to be influenced by the presence of submerged breakwaters.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 68 (2), I_491-I_495, 2012

  Japan Society of Civil Engineers

Keywords

• RFID
• sand-gravel mixed beach
• sediment transport

Details

• CRID: 1390001205321614976
• NII Article ID: 130004550825
• DOI: 10.2208/kaigan.68.i_491
• ISSN: 18838944
• ISSN: 18842399
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed