Kobe Port Minatojima Tunnel
HEIGHT: 9.1 m
WIDTH: 34.4 m
TOTAL IMMERSED LENGTH: 520 m
DEPTH AT BOTTOM OF STRUCTURE: 22.6 m
ENVIRONMENTAL CONDITIONS:
Sea bottom is very soft clay. Seismically active area (Hannshinn Earthquake 1995).
“V-block” type of final joing was used (see description for T.102).
FABRICATION METHOD:
Framing fabricated in a shop and assembled in a dry
dock. Concrete placed in the dry dock. High fluidity
concrete was pumped into SCS sections.
WIDTH: 34.4 m
TOTAL IMMERSED LENGTH: 520 m
DEPTH AT BOTTOM OF STRUCTURE: 22.6 m
ENVIRONMENTAL CONDITIONS:
Sea bottom is very soft clay. Seismically active area (Hannshinn Earthquake 1995).
“V-block” type of final joing was used (see description for T.102).
FABRICATION METHOD:
Framing fabricated in a shop and assembled in a dry
dock. Concrete placed in the dry dock. High fluidity
concrete was pumped into SCS sections.
Hyogo,
Japan
88m
520m
22.6m
Project construction
6
Two tubes, 3 lanes each tube
9.1m
34.4m
Five of the six sections will use steel-concrete-steel (SCS) designs. This will eliminate
the need for traveller type formwork. Bids had just been opened on these first sections
when this was written.
the need for traveller type formwork. Bids had just been opened on these first sections
when this was written.
Framing fabricated in a shop and assembled in a dry
dock. Concrete placed in the dry dock. High fluidity
concrete was pumped into SCS sections.
dock. Concrete placed in the dry dock. High fluidity
concrete was pumped into SCS sections.
Sea bottom is very soft clay. Seismically active area (Hannshinn Earthquake 1995).
“V-block” type of final joing was used (see description for T.102).
“V-block” type of final joing was used (see description for T.102).
Supported by pontoons. Ballasting with water into interior ballast tanks.
Flexible joint with Gina gaskets and posttension
cables across joints.
cables across joints.
Steel shell.
Non-segregating cement grout pumped under element.
1.5 m of backfill over 0.1 m concrete protection.