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3D model data of digital twin in seismic emergency inspection of road bridges

Version 2 2025-01-10, 08:56
Version 1 2024-12-17, 01:33
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posted on 2025-01-10, 08:56 authored by Naomichi KATAYAMA, Pang-jo ChunPang-jo Chun

After an earthquake, it is crucial to judge the necessity of traffic regulation and implement emergency measures based on load-bearing capacity and drivability to facilitate early road clearance. The diagnose on road bridges has traditionally relied on past earthquake damage and recovery response record as a reference, however, inconsistencies in diagnostic results have become an issue. Additionally, considering the shortage of engineers during disasters and the need of lightening their workload, it is urgent to develop emergency inspection methods that enable them to diagnose remotely. Therefore, we examined a remote diagnostic system using digital twins as a new emergency inspection method. 

Totally 5 bridges were scanned after earthquake, the 2024 Noto Peninsula Earthquake 1st January, by portable LiDAR Scanner Matterport Pro3. This dataset includes the 3d data of the 5 Bridges (A~E). The 3d data of the bridges were saved separately as e57 file, named as Bridge A~E. The E57 file is data format of LiDAR Point Cloud data file. 

Funding

A New AI Method for Bridge Inspection and Diagnosis that Combines CNN with Highly Accurate Damage Detection and Expertises

Japan Society for the Promotion of Science

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Remedial measures for river levees against piping-induced breach

Japan Society for the Promotion of Science

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Development of cooperative operation control method for construction machinery using group decision theory

Japan Society for the Promotion of Science

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Public Works Research Institute

History

Corresponding author email address

n-katayama@daiichi-c.co.jp

Title (in Japanese)

道路橋の地震時緊急点検におけるデジタルツイン活用に関する3Dモデルデータ

Description (in Japanese)

地震発生後は,早期の道路啓開に向けて耐荷性・走行性から交通規制の要否診断及び応急対策を行う必要がある.橋梁の診断においては,過去の地震被害及び復旧状況を参考に実施しているが,診断結果のばらつきなどが課題となっている.また,被災時の技術者不足や技術者の負担軽減などの観点から,遠隔診断が可能な緊急点検手法の構築が急務である. そこで,新たな緊急点検手法として,デジタル ツインを用いた遠隔診断システムについて検証を行ない,デジタルツインを用いた緊急点検による効果と実践するための解決すべき課題を整理された. このデータセットでは上述の研究の目的で、2024 年 1 月 1 日に発生した能登半島地震の地震後に、ポータブル LiDAR スキャナー Matterport Pro3 によって五つの橋梁をスキャンした。スキャンした3Dデータはe57ファイルに保存している.ファイル名はそれぞれ5つの橋, A~E橋に対応している.E57ファイルは、LiDAR点群データファイルのデータ形式である.

Manuscript title (in Japanese)

道路橋の地震時緊急点検におけるデジタルツイン活用の可能性

Authors (in Japanese)

片山直道, 全邦釘

Copyright

© 2024 Japan Society of Civil Engineering

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