Author(s): Yoshitaka Hirotsugu; Jin Kashiwada; Takashi Inoue; Yasuo Nihei

Linked Author(s): Jin Kashiwada, Yasuo Nihei

Keywords: River Bridge; Pier; Local scour; Three-dimensional flow structure; Flood; ADCP

Abstract: River bridges were mainly damaged by local scouring around the piers due to flood flow. However, the flow structure and local scour around piers in flood condition remain unknown. In this study, we developed a new monitoring system to measure flow and scour around piers based on a radio-controlled boat with an ADCP and a position identification method. We applied the present system to the field measurement at the Noda Bridge in the Edo River. As a result, the present system can efficiently identify the ADCP position and measure the riverbed height around piers and part of the complex three-dimensional flow structure.

DOI: https://doi.org/10.3850/978-90-833476-1-5_iahr40wc-p1065-cd

Year: 2023