Large Cross-section Tunnel Research Articles

Study on design and construction method for the New Tomei–Meishin expressway tunnels

The New Tomei-Meishin expressway has a high-speed highway facility with six lanes (three lanes for each direction) throughout its total length of 502 km. The expressway is planned to form a new transportation backbone for Japan in the 21st century by connecting between Tokyo and Kobe. This expressway plays a supplemental expressway of the existing Tomei and Meishin expressways. The tunnels on the New Tomei-Meishin expressway have a very large, flattened cross-section of approximately 190 m2 excavation area, while the excavation width is approximately 18 m. There is no previous example of such a huge cross-section in the world. Thus, there are various problems regarding the technical configuration and the support structure in terms of construction such as how to excavate a large group of tunnels safely and efficiently. This paper describes the study and investigation related to design and construction method for large cross-section tunnels located in various ground conditions. (A)

Large cross section tunnels in soft ground : Proc 1989 Rapid Excavation and Tunnelling Conference, Los Angeles, 11–14 June 1989 P94–109. Publ Littleton: SME, 1989

Large cross section tunnels in soft ground : Proc 1989 Rapid Excavation and Tunnelling Conference, Los Angeles, 11–14 June 1989 P94–109. Publ Littleton: SME, 1989

Excavation of large cross section tunnels in accordance with the basic principles of the ‘New Austrian tunnelling method’ (NATM) with particular regard for the use of boom-type tunnelling machines (in german and English) : Will, M World tunnlgspecial edition, P51-55. (paper to the 2nd international tunnelling symposium, Munich, 12 April 1989)

Excavation of large cross section tunnels in accordance with the basic principles of the ‘New Austrian tunnelling method’ (NATM) with particular regard for the use of boom-type tunnelling machines (in german and English) : Will, M World tunnlgspecial edition, P51-55. (paper to the 2nd international tunnelling symposium, Munich, 12 April 1989)