The shield tunneling method is a construction technique for building tunnels by excavating underground with a cylindrical tunneling machine (shield). Because it enables safe construction while minimizing impact on the ground surface, it is widely used as an essential technology for infrastructure development.
TAC is involved in a wide range of activities, from the development of materials and equipment required for shield tunnel construction to consulting services, providing solutions to diverse on-site challenges.
We independently develop and supply a wide range of materials tailored to ground conditions during excavation and to securing the stability of structures. By selecting the optimal materials for each site and application, we help ensure safe and reliable construction.
We develop in-house the dedicated equipment used for material injection and monitoring, and provide it in specifications suited to each construction site. Designed with operability, efficiency, and safety in mind, our equipment is available both for purchase and rental.
Our specialist engineers visit construction sites to provide direct guidance on the use of materials, operation of equipment, and site management. They respond flexibly to on-site issues and troubles, supporting stable shield tunneling progress.
To minimize impact on surrounding ground and structures, we study and propose countermeasures against ground settlement and construction plans. From design through on-site support, we provide comprehensive, expert assistance to enhance the reliability of each project.
We independently develop materials, equipment, and systems. By reflecting feedback from construction sites, we continually pursue practicality and reliability.
Our extensive track record built over the years underpins TAC's technological capabilities and the trust placed in us by our customers.
In addition to ensuring safety and improving quality during construction, we also contribute to addressing environmental issues such as ground settlement and wastewater management.
TEL：+81-869-84-2069
Phone Hours:：Weekdays 9:00–17:00 (JST)
FAX：+81-869-84-3288