URUP (Ultra Rapid under Pass) Method the First Implementation in a Public Project

The URUP (Ultra Rapid Under Pass) Method was originally developed to construct an underpass within shorter period and smaller environmental impacts than conventional construction methods. The demonstration work has proved applicability of the URUP method for ordinary shield tunnelling projects. The first project of the URUP method in the world is currently in progress. This paper presents the URUP method, the demonstration work, the outline of the actual tunnel construction by the URUP method.