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Inland river immersed tube floating transportation and installation operation method

An immersed pipe and inland river technology, applied to the field of floating installation of inland river immersed pipes, can solve the problems of inconvenient scheduling, large force on beams, poor stability, etc., and achieve the effects of improving operation efficiency, reducing construction costs and improving stability.

Pending Publication Date: 2022-04-12
CCCC FIRST HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, inland rivers often have narrow channels and shallow water depths, and it is difficult to float and sink immersed tubes. At present, there are few transportation and installation equipment for inland river immersed tube operations, and most of them are in the form of a beam connecting barges on both sides. The overall towing to the site is inconvenient; in addition, during the construction of the immersed tube, the existing transportation and installation equipment only relies on the barges on both sides to provide buoyancy, and the beam between the two barges does not enter the water, so the force on the beam is relatively large. The stability of the equipment during the immersed tube construction process is poor, and the operation efficiency during the inland river immersed tube construction is low

Method used

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  • Inland river immersed tube floating transportation and installation operation method
  • Inland river immersed tube floating transportation and installation operation method
  • Inland river immersed tube floating transportation and installation operation method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] like figure 1 As shown, the inland river immersed tube floating installation operation method of the present invention includes the steps of placing the immersed tube in place, assembling the floating installation barge, loading the immersed tube, floating the immersed tube, and installing the immersed tube.

[0037] In the step of putting the immersed tube in place, the 5 strands of the immersed tube to be installed by floating are removed from the dock and moved to the secondary outfitting area for secondary outfitting.

[0038] In the step of assembling the floating installation barge, the assembly of two sub-floating installation barges is included. like figure 2 , image 3As shown, the assembly of each sub-floating installation barge further includes: connecting a plurality of sub-trusses 101 to the main truss 1 in sequence, connecting two floating bodies 3 to the bottom surfaces of both ends of the main truss 1 in the length direction, and connecting at least o...

Embodiment 2

[0053] Such as Figure 8 , Figure 9 As shown, the present invention also provides a method for floating installation of immersed pipes in inland rivers. On the basis of Embodiment 1, two ends of the two main trusses 1 in the length direction of the two sub-floating installation barges are respectively connected to each other. The connecting trusses 14 connect the reinforcing trusses 15 between the two connecting trusses 14 , and the connecting trusses 14 and the reinforcing trusses 15 are formed by detachable connection of a plurality of sub-trusses 101 .

[0054] It can be understood that the length of the connecting truss 15 can be adjusted according to the length of the immersed tube 5 by increasing or decreasing the number of sub-trusses 101; The position of the lifting point 51, and the length of the connecting truss 14 depends on the distance between the two main trusses 1 of the two sub-floating installation barges. In addition, the length of the reinforcing truss 15...

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Abstract

The invention belongs to the technical field of immersed tube tunnels, and particularly relates to an inland river immersed tube floating transportation and installation operation method. The operation method comprises the steps that the immersed tube to be subjected to floating transportation and installation is moved out of a dock; assembling a floating transportation installation barge; the floating transportation installation barge winch is moved to cross over the immersed tube and is connected with the immersed tube; the floating body is filled with water, pre-tightening force is applied to the hanging point, so that the floating box presses the top face of the immersed tube, and the floating transportation installation barge is twisted and moved to transport the immersed tube to the position to be installed in a floating mode; water in the floating body is discharged, the immersed tube is pressurized to carry water until the negative buoyancy reaches a preset value, and at the moment, the floating box enters the water to provide buoyancy; and then the immersed tube is immersed for butt joint installation. The problems that existing transportation and installation equipment for inland river pipe sinking operation is inconvenient to dispatch and the stability of the equipment is poor in the pipe sinking construction process due to the fact that a cross beam does not enter water are solved, construction dispatching and on-site assembly are facilitated through use of the fabricated floating transportation and installation barge, the stability of the floating transportation and installation barge in the pipe sinking construction process is improved, and the construction efficiency is improved. The operation efficiency is improved, and the construction cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of immersed tube tunnels, and in particular relates to an installation operation method for floating transport of immersed tubes in inland rivers. Background technique [0002] Immersed tube tunnels are currently the most commonly used structural forms for sea-crossing and river-crossing tunnels. For urban inland river tunnels, the connection between immersed tube tunnels and roads on both sides of the water area is more flexible, which can greatly save urban land resources and is of great significance for promotion. However, inland rivers often have narrow channels and shallow water depths, and it is difficult to float and sink immersed tubes. At present, there are few transportation and installation equipment for inland river immersed tube operations, and most of them are in the form of a beam connecting barges on both sides. The overall towing to the site is inconvenient; in addition, during the construc...

Claims

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Application Information

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IPC IPC(8): E02D29/073B63B35/00
Inventor 潘伟刘德进张乃受苏长玺鞠鹏冯甲鑫王翔徐善忠王明玉王传鹏岳远征管泽旭
Owner CCCC FIRST HARBOR ENG
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