A self-supply system of artificial island pipe joints for the relay extension of floating tunnels

Abstract

The invention discloses an artificial island pipe joint self-supply system for the relay extension of a floating tunnel, which includes a pipe joint prefabrication plant and a pipe joint transportation channel arranged in the inner part of the island, and a material supply area arranged in the outer part of the island; the material supply area Including the material wharf, breakwater and harbor basin, the opening of the relay artificial island is the harbor basin gate; the material wharf is located at the inner end of the outer part of the island and on the side of the originating structure of partial jacking; the breakwater is located at the upstream end of the relay artificial island; The pool is the sea area between the rear edge of the breakwater and the front edge of the material wharf. The port basin entrance is set on the side of the jacking receiving structure; the pipe joint prefabrication plant is set on the side of the partial jacking starting structure; the pipe joint transportation channel includes the slope top transfer platform , a turning platform at the bottom of the slope and a transport ramp connected between the transfer platform at the top of the slope and the turning platform at the bottom of the slope and perpendicular to the axis of the floating tunnel in the water. The pipe joint self-supply system of the artificial island of the present invention can greatly improve the installation efficiency of the pipe joints of the floating tunnel, can also save the construction period, and the cost is relatively low.

Description

technical field [0001] The invention relates to an underwater floating tunnel, in particular to a self-supply system for artificial island pipe joints used for the relay extension of the floating tunnel. Background technique [0002] The submerged floating tunnel, the English name is "Submerged Floating Tunnel", referred to as "SFT". Also known as "Archimedes Bridge" in Italy. The difference between floating tunnels in water and traditional buried tunnels or excavated tunnels is that the floating tunnel structure is surrounded by water, neither on the ground nor through the ground, but mainly depends on the gravity of its own structure, the buoyancy and support of the structure The anchoring force of the system is used to keep it in a fixed position. The suspension tunnel is sealed all around, and this structure has all the characteristics of ordinary tunnels, and should be considered as a "tunnel" rather than a "bridge" from the point of view of use. [0003] Although fl...

AI Technical Summary

Problems solved by technology

In addition, as the floating tunnel is extended with multiple spans, the output of a prefabricated factory in the land area is only suitable for the installation of pipe joints for a single-span floating tunnel, and it is difficult to achieve the goal of shortening the construction period by simultaneously constructing multi-span floating tunnels

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