Publications / 2020 Proceedings of the 37th ISARC, Kitakyushu, Japan

Development of ROV for visual inspection of Concrete Pier Superstructure

Toshinari Tanaka, Shuji Nogami, Ema Kato and Tsukasa Kita
Pages 954-961 (2020 Proceedings of the 37th ISARC, Kitakyushu, Japan, ISBN 978-952-94-3634-7, ISSN 2413-5844)

Visual inspections of underside of concrete superstructures of piled piers are usually carried out by inspectors on small boat or divers. it is not easy to ensure work safety in such a narrow space because of affection by waves and tides during inspection work. And, inservice facilities require to carry out the inspection work efficiently within a limited amount time and period. Therefore, the authors developed a ROV type inspection device with various support functions that takes images of the underside of the pier superstructure for improving the safety and efficiency of the inspection work. Moreover, we also developed a software to support documentation of the inspection and diagnosis of pier superstructures. In this paper, a developed ROV for visual inspection of concrete pier superstructure and cooperation between various support functions are described.

Keywords: Visual inspection; Concrete pier superstructure; ROV; Work support functions