Abstract

Development of Mobile Inspection Robot for Concrete Wall Surface and Strength Estimation Considering Coarse Aggregate by Small Diameter Drill Momoe Terata, Fumihiro Inoue Pages 1319-1322 (2024 Proceedings of the 41st ISARC, Lille, France, ISBN 978-0-6458322-1-1, ISSN 2413-5844) Abstract: In order to estimate the strength of concrete members such as bridge piers and tunnel walls easily at the actual site, we developed a small-diameter abrasive drill and proposed a method to estimate the strength of concrete from the change in drilling speed. In drilling with a 5 mm-diameter drill, the drilling speed changes due to the influence of coarse aggregate mixed in the concrete. Therefore, the drilling speed due to coarse aggregate was found from the analysis of the drilling speed, and the relationship between the average drilling speed excluding the effect of coarse aggregate and concrete strength was found. Next, a mobile inspection robot equipped with a drill drilling mechanism was developed to simplify this inspection method. The inspection robot is equipped with a high-powered duct fan that easily presses the drill. The robot is roller-driven, movable up and down, and lightweight, and thus has potential for practical use. Keywords: Small-diameter drill, Concrete strength estimation, Inspection robot, Roller drive, Duct fan thrust DOI: https://doi.org/10.22260/ISARC2024/0173 Download fulltext Download BibTex Download Endnote (RIS) TeX Import to Mendeley