Technologies for Widened-Tunnel Renewal and Construction Streamlining
First written in FY2020. 4 of 5 entries say "Advanced", first in FY2021. Latest entry: FY2026.
1 other company's latest entry also says "Advanced".
- FY2026AdvancedAnnual report
「In the fiscal year ending March 2026, the Company developed and improved the measuring instrument. Going forward, it will conduct field measurements toward NETIS registration and aims for early implementation in society.」
The management technology for embankment compaction using electrical properties advanced from developing and improving the measuring instrument to field measurements toward NETIS registration. - FY2025AdvancedAnnual report
「The Company is working to advance the technology developed in the fiscal year ending March 2024 to reduce overbreak in tunnels using AI. It aims to develop a more accurate AI model by using CNN, a deep-learning method, to analyze the correlation between construction conditions and the excavation profile produced by blasting.」
The AI tunnel construction technology has advanced from the developed overbreak-reduction technology to improving model accuracy using CNN. - FY2022AdvancedAnnual report
「The Company improved the protector used to protect general vehicles traveling through the tunnel during construction and filed domestic applications claiming priority in Japan for 2 related patents pending application.」
For its widened tunnel technology, the Company has proceeded to domestic applications claiming priority in Japan for 2 patents related to the improved protector. - FY2021AdvancedAnnual report
「The Company improved the protector to enhance workability during installation and removal and filed 2 related patent applications.」
For its widened tunnel technology, the Company improved the protective protector and filed 2 related patent applications. - FY2020First statedAnnual report
「The Company entered into an agreement with the Public Works Research Institute, a national research and development agency, for joint research on tunnel upgrade technologies and is conducting the joint research over 4 years from April 2017 to March 2021.」
The Company describes the joint research as a new research and development theme, analyzing the actual behavior of widened tunnel construction and studying efficiency measures such as reducing temporary supports.