Efficient and effective bridge maintenance management data collection and development of bridge inspection/diagnostic training simulators

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K04565
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 25020:Safety engineering-related
• Research Institution: University of the Ryukyus
• Principal Investigator: Tai Masayuki 琉球大学, 工学部, 准教授 (70646596)
• Co-Investigator(Kenkyū-buntansha): 下里 哲弘 琉球大学, 工学部, 教授 (90452961)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 3次元モデル / 点検診断 / 技術者育成 / 維持管理 / 野帳

Outline of Final Research Achievements

A bridge inspection simulator was constructed by integrating models created using a 3D imaging laser scanner with models created using Structure from Motion, utilizing the ICP method, and displaying them on a head-mounted display. This simulator enables movement on and around the bridge. Furthermore, a digital field notebook was developed for use on tablets, which facilitates on-site storage and review of inspection and diagnosis records, historical results, and cases of similar bridge damage. The effectiveness of this notebook was evaluated through implementation tests, demonstrating its efficacy in preventing the oversight of cracks and coating fractures and in improving the efficiency of office tasks.

Free Research Field

維持管理

Academic Significance and Societal Importance of the Research Achievements

道路構造物の維持管理において，5年に1度の近接目視による点検が義務付けられ，日本国内全ての橋梁に対して適切な点検・診断を行い，安全・安心を確保するためにも，優秀な点検・診断技術者の確保と効率的な点検・診断の実施が必要である．
本研究成果は，橋梁諸元の効率的な収集だけでなく，現場に近い環境での点検学習が可能となり，維持管理が必要な橋梁ストックの増大と人口減少社会において，優秀な点検診断員の確保につながると考える．また，開発したデジタル野帳は点検のデジタル化と信頼性向上につながり，橋梁の長寿命化の一助になると考えている．