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Tomei Meishin Expressway Project

Supplier: Elastoplastic Concrete
19 October, 2009

The Tomei Meishin Expressway is the largest motorway scheme in the Japan roads programme with a total route length of 502km. The workis being undertaken for the Japan Highway Board.

Tomei Meishin Expressway Project

The Tomei Meishin Expressway is the largest motorway scheme in the Japan roads programme with a total route length of 502km.

The workis being undertaken for the Japan Highway Board.

The New Tomei Expressway is a 330km long highway connectingTokyo and Nagoya, and the New Meishin Expressway is 174 km which connects Nagoya and Kobe.

It is anticipated that the new expresswaywill be able to provide a mutually supplementary function to the existing expressway, especially at times of road works and emergencies, and so preserve traffic capacity on the Tokyo-Kobe route.

The whole expressway is scheduled to be completed between 2007and 2009.

Tunnels on route:

The route of the new expressway passes through considerably moremountainous terrain than the existing expressway.

A total of 167 tunnels are planned with a combined length of 224 km, which is 25% of the total length of the new expressway carriages.

Tunnels on the New Tomei Expressway will accommodate wide space 3-lane carriageways for improved road drivability and safety, and have a very large excavated cross section of approximately 190 m2.

1  Shimizu No 4 Tunnel - Tomei Expressway

  • Date: September and October 2004
  • Use: Secondary Lining
  • Dose: 3 kg / m3 (0.3%)
  • Fibre: Barchip 4350 48 mm
  • Volume: 2,725 m3
  • Location: Shizuoka Prefecture
  • Contractor: Obayashi JV

Twin tubes, 1,120 m-long each 15 m-wide with three 3.75 m-widelanes plus 2.5 and 1.25 m-wide shoulders. Pilot tunnel driven by 5m-diameter TBM prior to drill/blast enlargement. Excavated cross section of about 200 sq m.

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