Announced details
Large civil engineering structures; coastal facilities and groyne development
Reduced labor requirements, a shorter construction period, more stable block lifting operations, and improved durability and quality against wave and sand-and-gravel impacts
CTI Engineering Co.,Ltd. was responsible for the detailed design of the facility, including studies of the groyne’s shape, planning and design of the groyne structure using precast concrete blocks, and the design of temporary structures for construction.
Facility manager. Other information, including location, representative and business activities, is Not disclosed.
Japan Federation of Construction Contractors Awards 2026, 7th Civil Engineering Award
Japan Federation of Construction Contractors
In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.
Japan Federation of Construction Contractors, “Civil Engineering Award-Winning Projects / Award Recipients 2026”
| Item | Details |
|---|---|
| Names of Products / Services Covered | R3 Seisho Coast Rock-Type Submerged Groyne Construction Project using precast blocks manufactured with a construction 3D printer |
| Counterparty | Keihin River Office, Kanto Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism |
| Counterparty overview | Facility manager. Other information, including location, representative and business activities, is Not disclosed. |
| Relationship with the Company | CTI Engineering Co.,Ltd. was responsible for the detailed design of the facility, including studies of the groyne’s shape, planning and design of the groyne structure using precast concrete blocks, and the design of temporary structures for construction. |
| Applicable area | Large civil engineering structures; coastal facilities and groyne development |
| Award/certification name | Japan Federation of Construction Contractors Awards 2026, 7th Civil Engineering Award |
| Awarding / certifying body | Japan Federation of Construction Contractors |
| Quantitative Effects | Reduced labor requirements, a shorter construction period, more stable block lifting operations, and improved durability and quality against wave and sand-and-gravel impacts |
| Source | Japan Federation of Construction Contractors, “Civil Engineering Award-Winning Projects / Award Recipients 2026” |
Items this document does not state (9)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.The project was recognized for being the first in Japan to use precast blocks manufactured with a construction 3D printer in the transition section at the tip of the groyne, which required a unique three-dimensional shape, thereby reducing labor requirements, shortening the construction period, stabilizing block lifting operations, and improving durability and quality against wave and sand-and-gravel impacts.