Dismantling Method of Tube Joints in Immersed Tube Tunnel
A technology for immersed tunnels and pipe sections, which is applied in water conservancy projects, artificial islands, underwater structures, etc., can solve the problems of low construction efficiency, unfavorable energy conservation and environmental protection, and high risks, and achieve the effect of safe demolition.
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[0022] The present invention will be further described below in conjunction with specific embodiments.
[0023] The overall construction idea of immersed tube tunnel joints is introduced as follows. When dismantling immersed tube joints, the first joints (that is, the joints at both ends of the tunnel) shall be removed first, and then the normal joints (except the two ends) shall be removed. section) removal. The dismantling of the pipe joint adopts the integral floating construction method, which can completely float the pipe joint from the seabed and haul it to the designated area. The floating of the pipe joint is to install the air bag or buoyant material in the pipe gallery of the immersed pipe, and provide buoyancy by inflating to realize the buoyancy aid construction. The dry string of the pipe joint is adjusted to 0.1-0.3m and then fixed with the square barge. The immersed tube is dragged to the designated location by tugboat, and then the pipe joint is lowered to ...
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