Tweet Share

• Send by email

  Send by email

  

  The situation of the railroad shield tunnel design in the latest Japan

  In Japan, Tunnel boring machine (TBM) has been used fluently in soft ground at urban area and these tunnels are called “shield tunnel”. Until 1980, the most of all machine was manual excavate type. However, the ground surface settlement was occurred at many sites. As a result, the earth pressure type and slurry type were developed and These are used mainly. Moreover the original design method “beams-spring model” was also made for shield tunnel. In this study, the trendof railway tunnels which was constructed by shield tunnel methods and the result of parametric study using the original design method were shown.

  Recipient :

  Name ^* :

  E-mail address ^* :

  ^* Required fields

  Send   or  Cancel

• Print