Recent Trends in Design Technology of Cut and Cover Tunnels for Railways

摘要

Cut and cover tunnels for railways in Japan are designed according to the Design Standards for Railway Structures and Commentary (Cut and Cover Tunnels). The standard was published about 15 years ago. Subsequently, the design of railway structures, except tunnels, shifted to a performance-based design system. Therefore, a committee was established to revise the Design Standards for Railway Structures and Commentary (Cut and Cover Tunnels) in 2014. The committee completed a draft new set of standards in 2017. This paper discusses recent trends in the design technology of cut and cover tunnels for railways, with a focus on the contents of the committee's revised draft.