Shorter construction periods, lower costs and expanded adoption through a proprietary construction method
First written in FY2017. 2 of 8 entries say "Advanced", first in FY2018. Latest entry: FY2024.
1 other company's latest entry also says "Restated".
- FY2024RestatedAnnual report
「In fiscal 2021, the company revised the quality verification testing method conducted during factory fabrication, renewed the certification and responded to customer needs. It will continue to use the method for technical proposals and to reduce construction costs.」
The company continues to revise the SEW method's quality verification testing method, renew its certification and use it for technical proposals and cost reductions. - FY2023Annual adoptions of the SEW method declined.Annual report
「In fiscal 2022, the method was adopted in 7 projects, including road and water and sewer tunnels.」
Annual adoptions of the SEW method declined from 8 in the previous fiscal year to 7. The company continues to use it for technical proposals and to reduce construction costs. - FY2022AdvancedAnnual report
「In fiscal 2021, the company revised the quality verification testing method conducted during factory fabrication, renewed the certification and responded to customer needs. In fiscal 2021, the method was adopted in 8 projects, including road and water and sewer tunnels.」
The SEW method's quality verification testing method was revised and its certification renewed, and the method was adopted in 8 projects in fiscal 2021. - FY2021Annual adoptions of the SEW method declined.Annual report
「In fiscal 2020, the method was adopted in 7 projects, including road and water and sewer tunnels. The company will continue to use it for technical proposals and to reduce construction costs.」
Annual adoptions of the SEW method declined from 16 in the previous fiscal year to 7, but adoption for road and water and sewer tunnels and its use for cost reductions continue. - FY2020Annual adoptions of the SEW method declined to 16.Annual report
「In fiscal 2019, the method was adopted in 16 projects, including road and water and sewer tunnels. The company will continue to use it for technical proposals and to reduce construction costs.」
Annual adoptions of the SEW method declined from 17 in the previous fiscal year to 16, but adoption for road and water and sewer tunnels and its use for technical proposals and cost reductions continue. - FY2019Annual adoptions of the SEW method declined, while continued adoption was confirmed.Annual report
「In fiscal 2018, the method was adopted in 17 projects, including road and water and sewer tunnels. The company will continue to use it for technical proposals and to reduce construction costs.」
The SEW method was adopted in 17 projects in fiscal 2018. Although the number declined from the 29 projects disclosed for the previous fiscal year, the company continues to use it for technical proposals and cost reductions. - FY2018AdvancedAnnual report
「In fiscal 2017, the company worked to improve the method, including through strength testing of field joints, and it was adopted in 29 projects, including road and water and sewer tunnels.」
Adoptions of the SEW method increased from 22 in the previous fiscal year to 29, while improvements, including strength testing of field joints, also progressed. - FY2017First statedAnnual report
「In fiscal 2016, the method was adopted in 22 projects, including shield tunneling work for the Fukuoka City subway and large-diameter shield shaft work for road tunnels. The company will continue to actively use it for technical proposals and to reduce construction costs.」
For the SEW method, the company disclosed 22 adoptions in fiscal 2016 as a technology enabling rationalization, shorter construction periods and lower costs.