List of products by author: A. Kojima

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  Connecting Shield Tunnels to Deep Undersea Caisson Arrival Shaft

  Abstract: In a thermal power plant renewal project, seawater intake shield tunnels were connected to a seawater intake structure built by the pneumatic caisson method. The shield machine bored a tunnel to a point at the bottom of the seawater intake structure (caisson) doubling as arrival shaft. Due to high water pressure (0.34 MPa) at the shield machine arrival point, there was concern regarding sludge...

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