A History and Research Objects of Design Method for Shield Tunnel Lining in Japan

Abstract

Recently, it has often become necessary to construct tunnels under more severe conditions and to develop new techniques in Japan. However, present design techniques cannot appropriately reflect the construction techniques; and thus, traditional methods are still often used. On account of the well-balanced progress between construction and design in shield tunneling method, an innovation of design technique is required. This paper shows a history of the design method for shield tunnel lining in Japan and discusses objects of research for it.