Development and Introduction of a New Shinkansen Tunnel Lining Scanning Car

摘要

In order to accurately and quickly capture the deformed state of tunnel lining surfaces, in 2000 the East Japan Railway Company (JR East) introduced a tunnel lining scanning car (TuLIS) that can record images of the deformed state of tunnel lining surfaces by using a laser measuring device.~(1)) In line with the aging of Shinkansen rolling stock, we have developed and introduced a car that incorporates improvements to the captured-data resolution and measurement speed, as well as new functions for automating crack detection.