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WHAT IS JTA

ORGANIZATION

JOURNAL

TUNNELLING DATA

LATEST TUNNELLING TECHNOLOGY

CONFERENCE & EVENT

 

 

 

                                                                                                                             

TUNNELLING DATA IN JAPAN

 

                                                                                                                                                                                       

History of Tunnelling projects in Japan

1974

Foundation of ITA

1975

Foundation of JTA

1978

4th ITA Congress in Tokyo, Japan

1972-1982

Breakthrough of Nakayama Tunnel of Jo-Etsu Shinkansen Super Express Line (First tunnel constructed with the NATM)

1971-1988

Breakthrough of Seikan Tunnel (Longest undersea tunnel in the world)

1986-1990

Kanetsu Road Tunnel (Longest road tunnel in Japan)

1989-1997

Trans-Tokyo Bay Tunnel (Longest undersea road tunnel in the world)

1997-

Kannagawa Underground Pumped Storage Power Station

 

 

 

 

TUNNELLING DATA IN JAPAN