ABSTRACT
In recent years, with the development of IoT and ICT technologies, an environment has been created in which digital data related to construction can be easily obtained. In this paper, we have developed a system based on the concept of digital twin, which integrates digital data and numerical simulation technology. First, the system reproduces in a virtual space the “water inflow rate at the face” and “results of the geological survey at the time of construction,” which are acquired during tunnel excavation. Next, the system updates this information on time. Finally, the system uses numerical simulations to constantly predict signs (water inflow and geological changes) that will occur in the near future. The information predicted by this system can be disseminated on time in a form that can be easily understood by anyone. Therefore, this system is a technology that can contribute to safe and secure construction
