NEXCO EAST jointly developed a new “bridge inspection support system” utilizing ICT with the University of Tokyo and Hokkaido University.
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- NEXCO EAST jointly developed a new “bridge inspection support system” utilizing ICT with the University of Tokyo and Hokkaido University.
January 15, 2014
East Nippon Expressway Co., Ltd.
NEXCO EAST (Chiyoda-ku, Tokyo) Developed a new "bridge inspection support system" using ICT in collaboration with the University of Tokyo (Bunkyo-ku, Tokyo) and Hokkaido University (Sapporo, Hokkaido) Did.
Currently, there are about 3,500 bridges on the Expressway managed by our company, and in 2020, about 50% of them will be 30 years after construction. Also, with the expansion of the Expressway network, heavy vehicle traffic has increased, and the total weight of vehicles has also tended to increase, making the use environment for Expressway even more severe than before. On the other hand, it is expected that the number of skilled inspection engineers will decrease in the future, and it will become a major issue in the long term to appropriately respond to the deterioration of the Expressway infrastructure.
In this situation, Efficient and accurate inspection and evaluation of Expressway infrastructure, and more effective training of inspection engineers are important measures to continuously provide safe and secure Expressway space. Has become.
Outline of "Bridge Inspection Support System" *Consists of 2 systems
(1) Evaluation support system [Document 1] [PDF: 686KB] reference
Overview
- When various data such as deformation images acquired during bridge inspection (hereinafter referred to as "inspection data") are registered in the system, Instantly search past inspection data and check for similar cases A system that can. This will allow the inspector to smoothly evaluate the damage content.
- More accurate search by adding not only image data but also textual information such as bridge installation environment and deformation details (*1) can be done. (*1) Patent application filed by the three parties in November 2013
- In the future, we will aim to improve the accuracy of search results by registering a huge amount of inspection data in the system, and in the future we are considering the possibility of using it for infrastructure management other than Expressway I want to come.
Effect: Support for evaluation of changes and training of inspection engineers
- We believe that it will be possible to convert the know-how of a skilled inspection engineer from "tacit knowledge" to "formal knowledge" and level the evaluation of the contents of changes, and to train inspection engineers more effectively.
(2) Input support system [Document 2] [PDF: 431KB] reference
Overview
- By utilizing smartphones and GPS functions, Location information of inspection engineer is automatically acquired And the inspector Check while confirming the contents of past changes, etc. I can.
- Also, regarding the inspection data entered during inspection, Automatically registered in the database Will be done.
Effect: Streamlining inspection work
- Compared with the conventional method that uses paper and a camera, we think that there is a time saving effect of about 30% combined with (1) the effect of the evaluation support system.
We plan to introduce this support system to some site organizations that conduct bridge inspections in the future, and plan to gradually expand it company-wide.
Main problems of bridge inspection and effect of utilizing "bridge inspection support system"
■Smart maintenance highway (SMH)
In order to ensure long-term safety and security of road infrastructure, we will introduce ICT technology and mechanize it, and build a comprehensive maintenance system that integrates these with engineers. As a result, it is expected that the efficiency and sophistication of maintenance and renewal will be improved.
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