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[Foundation Strategies]

Technological Strategy

[Foundation Strategies]

Technological Strategy

Technological Strategy

Technical research and development and to realize Vision 2030

Technical research and development and to realize Vision 2030

To become carbon neutral by 2050 and create a sustainable society, we promote the acceleration of changes in technical research and development, and plan, apply, analyze, expand, (and improve) new technical research and development, based on the basic policies for the Medium-term Management Plan 2019–2021. We reorganized the Technical & Engineering Service Division in April 2021 to promote technical research and development that meets the needs of on-site work in a flexible and speedy manner. We have established a Sustainability Promotion Group and GX* Promotion Group to help address climate change risks and create a sustainable society such as renewable energy. We have also proceeded with a plan for constructing a new research facility for the purpose of improving and expanding the testing function of the R&D Center.

  • * GX (Green Transformation): shifting to green energy that does not emit greenhouse gases enables to reform the industrial structure, society and economy, contributing to growth.

To Realize Vision 2030

We will promote the enhancement of technology to develop SMile Construction System (Japanese only) and peripheral services, aiming to become a construction company that globally supports and connects people and communities with new value.

(1) Technical research and development to develop SMile Construction System

Development of DX-related technologies including 3D design/construction plan based on BIM/CIM and the next-generation construction system with ICT

(2) Development of unique sustainable technologies and services

Development of sustainability transformation (SX)-related technologies including sustainable technologies that help create a sustainable society from the three aspects of the environment, society and economy, such as the use of environmentally friendly materials and construction methods and the long operating life of structures

(3) Strengthening of foundations for technical research and development

Strengthening of the marketing function and the promotion of management and effective use of intellectual property

Major technical research and development achievements in fiscal 2020 and major efforts in fiscal 2021

Major achievements in fiscal 2020

(1) Technical research and development to develop SMile Construction System

Real-time automatic system to inspect complete reinforcing bar shapes
Real-time automatic system
to inspect complete reinforcing bar shapes
EnKen, a remote inspection system
EnKen™, a remote inspection system
SMC-Tunneling series “Automatic de Lining”
SMC-Tunneling series “Automatic de Lining”
GENESIS/FHQ, a ground behavior monitoring system
GENESIS/FHQ, a ground behavior monitoring system

(2) Technical research and development of unique sustainable technologies and services

Dura-Bridge, a high-durable bridge
Dura-Bridge®, a high-durable bridge
Sustain-Joint
"Sustain-Joint®"

(3) Other technical research and development

Floor slab construction machine
Floor slab construction machine
Damage control type truss beam construction method RAIJIN
Damage control type truss beam construction method RAIJIN™

Major efforts in fiscal 2021

(1) Technical research and development to develop SMile Construction System

  • Construction management and quality control technology using ICT
  • Technology for mechanization and automation of construction, helping improve productivity
  • BIM and CIM technologies related to design, manufacturing and construction
  • Management technology in the production process

(2) Technical research and development of unique sustainable technologies and services

  • Technology to improve building sustainability
  • Technology for renewable energy applications
  • Technology related to low carbon
  • Technology related to the value creation of new materials
  • Technology for disassembly of structures
  • Technology related to resilience of structures

(Reference) You can find more information on our technology (available in English) by clicking here.

Applications of technical research and development

Dura-Bridge®, a high-durable bridge

Dura-Bridge® (Japanese only), a high-durable bridge, is a PC bridge that uses ultra-high strength fiber-reinforced concrete and corrosion-resistant aramid FRP rods for tension materials Since 2010, we have jointly researched* into the development of high-durable bridge using new corrosion-resistant tension materials in place of reinforcing bar and PC steel materials. This technology will prevent damage to a third party due to falling pieces of concrete caused by corrosion of materials such as reinforcing bar and PC steel materials. The technology is also intended to improve durability, allowing a reduction in the human and economic burden on future maintenance and management.

  • * Co-research with West Nippon Expressway Company Limited
Dura-Bridge, a high-durable bridge

We have verified structural performance by conducting different types of testing such as element testing on materials and the structure and driving testing with actual wheel loads. We have also constructed a demonstration bridge and verified workability and safety using the demonstration bridge as a road for construction work for two years. Based on such verification results, Dura-Bridge® was adopted for a newly constructed bridge structure.

Shear strength testing of joints
Shear strength testing of joints
Driving testing with wheel loads on floor slabs
Driving testing with wheel loads on floor slabs
Crane load testing on the demonstration bridge
Crane load testing on the demonstration bridge

Structure with Dura-Bridge®
Dura-Bridge®, a high-durable bridge, was adopted for the Bessodani Bridge, part of the project to add a lane launched on the Tokushima Expressway (between the Donari exit and Wakimachi exit). We manufactured several precast segments at a factory, transported them to the site, and constructed the bridge.

Bridge structure
Bridge structure
Construction of precast segments
Construction of precast segments
Completion
Completion