ABSTRACT
Shield tunnelling method has been used since 1920 in Japan. Due to the innovation of closed type shield technology around 1970 ‘s, more than 4000 shield tunnels have been constructed in Japan and maintenance work for aged shield tunnels has increased recently. To carry out the maintenance work efficiently, the construction data as well as the maintenance data after its completion are necessary. Therefore, JSCE established the technical committee on shield tunnel database in 2007. The TC carried out the questionnaire survey on the shield tunnel database. Then it was found that the maintenance data have been well updated by the owners, but the detail construction data have become lost with time. Therefore, the TC discussed the methodology to establish the shield tunnel database on construction data. This paper introduces the shield tunnel database by JSCE, based on the report by the TC.
