Submergence of the tunnel terminal which sinking facilities is done with

摘要

PROBLEM TO BE SOLVED: To provide a joint of an immersed tube and a execution method which can easily absorb an error generated when the immersed tube is installed and securely connect the immersed tube at the terminal end of a tunnel and a shaft. SOLUTION: A horizontal form 4 doubly composed of an internal horizontal frame 4a and an external horizontal frame 4b is installed between an immersed tube 1 as the main body of a tunnel, immersed at the terminal end of the tunnel and a shaft 2 forming a connection part to an approach communicating with the ground level, by connecting both ends of the internal and external horizontal frames 4a, 4b to the end of the shaft 2 respectively. Then, cement milk or concrete 5 is filled in between the internal and external horizontal frames 4a, 4b.