Toyo Construction Co., Ltd. (President and Representative Director: Kyoji Takezawa) has developed
the “Marine Work Digital Twin System*1” that reflects and displays information such as work
vessel location, stone material acceptance information and weather information, on the BIM/CIM model
in a virtual space in real time.
This system is a system that provides a unitary display of the real-time data collected at the site on the
BIM/CIM model, as well as enables the collaboration with ICT tools. Now, we conducted a trial operation
at the “Embankment & construction foundation work for new sediment disposal facility in Nagoya port”
ordered by Chubu Regional Development Bureau, MLIT, and put it into a practical use.
Screenshot of the digital twin system
Offshore marine works are generally conducted in a vast sea area near the port, which means that
there is no place for overviewing the allocation of work vessels. For this reason, the integrated
management is usually conducted by human observation, in which each operator takes each vessel
and uses phones, radio contact and several ICT systems. This system is easy to understand and use
intuitively due to the reproducibility of marine work status in a virtual space and the integrated display
of information in real time, which allows the proper construction management. We are planning to expand
the function according to the information obtained from various ICT systems.
Also, for an quantity acceptance work conducted prior to the stone material throw-in by a sand carrier
with grab bucket*2, it was necessary to take pictures and conduct calculations using measurement rods
and surveying poles by several people, therefore, there was a challenge that it took a lot of care and
time before the reflection of data. This system displays on the digital twin system the acceptance data
uploaded to the cloud from the “Measuring sand carrier with grab bucket (M.SOFT Co., Ltd.)”, an automatic
volume computation application applied with AR imaging technology, and also automatically outputs the data
to the administration table. This has saved the labor for data input operation, and also by the data sharing
through the cloud, it has become possible to manage the data in real time by the BIM/CIM in distant places
such as sites or branch offices.
Acceptance of stone material by the “Measuring sand carrier with grab bucket”
Overview of the Marine Work Digital Twin System
The Company has expanded the construction simulation technology of the BIM/CIM for the meticulous
construction plan formation (Toyo Virtual Construction) and the ICT technology for productivity
improvement at construction sites. Similarly, in the “Marine Work Digital Twin System”, the work saving
of construction management has been realized by intetrating the BIM/CIM with the ICT technology.
The Company will continuously make efforts to promote the comprehensive DX, from the construction
planning to construction site management, and will improve our construction technologies and productivity.
Digital twin*1: a technology to reproduce on the virtual space the data collected from the real space
Sand carrier with grab bucket*2: a work vessel to transport and throw in stone material, etc.