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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AI-Extracted 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 i...
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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.

Application Domain

Artificial islandsWaterborne vessels +2

Technology Topic

Negative buoyancyBuoyant flow +3

Image

  • 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(2)

Example Embodiment

[0035] Example 1:
[0036] Such as figure 1 As shown, the inner river deposit floating mounting operation method of the present invention, including the sedential in place, floating mounting barge assembly, deposition loading, deposit floating and deposit pipe mounting.
[0037] In the seating step, the dock is twisted out of the dock to be floated to be floated, moved to the secondary mounting area to be carried out.
[0038] In the floating installation barge assembly step, it includes assembly of two sub-floating installation. Such as figure 2 , image 3As shown, the assembly of each sub-floating mounting is further comprising: sequentially connecting the plurality of sub-truss 101 as the main truss 1, respectively connecting the two floating body 3 on the bottom surface of the two ends in the main direction of the main truss 1, at least one floating The box 4 is connected to the bottom surface of the main truss 1 between the two floats 3. The deck 2 is mounted on the top surface of the main truss 1, and a lifting device for connecting the ductile 5 is mounted on the deck 2.
[0039] In the settlement step, such as Figure 4 As shown, the floating mounting is twisted to the upper tube 5, and the hoisting device is attached to the lifting point 51 on the ductile 5. It should be noted that the lifting device does not apply tension to the lifting point 51, the floating mounting is in an air-loaded state, and the floating mounting is above the buoyancy of the floating body 3 across the deposit tube 5.
[0040] In the indulgence floating step, such as Figure 5 As shown, water is irrily in the floating body 3 until the floating box 4 is attached to the top surface of the duction pipe 5; the water is continued in the floating body 3, while using a lifting device to apply a preload to the hoisting point 51, so that the floating box 4 is pressed The top surface of the duct 5; then the float is then attached to the settlement 5 to the position to be installed. It will be understood that at this time, the top surface of the deposit tube is still exposed, and thus the floating box 4 is not in water. In addition, the number of floating boxes 4, which is mounted for each sub-floating, and all floating boxes 4 are arranged in the vertical plane of the main truss 1 width direction in the width direction of the main truss 1.
[0041] In the depositary installation step, such as Figure 7 As shown, the water in the floating body 3 is first discharged, and the water is applied to the duct 5 until the negative floating force of the duct 5 reaches a predetermined value. At this time, the floating box 4 provides buoyancy; then use the hoisting equipment Deposter 5, the docking mounting of the deposit pipe 5 is performed. Further, the increase in the amount of water supply in the inner pipe 5 increases, the floating mounting is rejected, and the water depth of the floating installation is increased, and the floating box 4 also provides buoyancy. During the installation of the deposition of the sediment, additional buoyancy supplements were provided due to the floating installation to the floating installation, significantly improved the stability of floating installation to the construction process of the deposit. The transportation and mounting equipment of the existing inner river deposit operation is only relying only on both sides of the barge, and the beam between the two-to-bidder does not enter the water, but the beam has a large force, and the equipment The stability during the construction of the sediment is poor. The floating installation in this embodiment has better stability due to the setting of the floating box into water.
[0042] It should be noted that a quick joint is attached to the floating body 3, which can easily quickly and quickly drain water; in accordance with the need for the installation of the deposit pipe, irrigation or drain into the floating body 3 to adjust the floating installation during the deposit. Remove the connection of the ductile 5.
[0043] The above-described illustrative embodiment, through the use of two assembled floating installation, facilitating the construction scheduling and on-site assembly of each component according to the internal river deposit construction requirements; Irrigation and the operation of the preloading force to the lifting point 51, ensuring that the sediment 5 is integrated with the floating installation, and there is no relative movement between the two, thereby achieving the stability of the ductile floating; When deposited, the floating box 4 into the water is used to provide buoyancy, and the floating installation is refuted during the construction process of the sedimentation, and then improves the operation efficiency during construction of the inner river, reducing the construction cost.
[0044] In some embodiments, the ductile 5 is tested to ensure its septality in front of the docking docking docking docking docking dock.
[0045] Such as image 3 As shown in some embodiments, in the floating mounting barge assembly step, each sub-floating mounting is assembled, the number of sub-truss 101 is determined according to the width of the duction 5, and the plurality of sub-truss 101 can be disassembled. Connecting to the primary truss 1, and the spacing of the two floating body 3 is greater than the width of the ductile 5. Further, the main truss 1 width is adjusted according to the width of the ductile pipe; the width of the duct pipe 5 becomes large, and the number of sub-truss 101 increases to increase the length of the main truss 1; in turn, the deposition pipe 5 width becomes small, reducing the sub-truss 101 The quantity to reduce the length of the main truss 1. The schematic embodiment can perform an optimized assembly and assembly application for floating installation retrieval 5 according to the width of different models, facilitating construction scheduling, reducing construction cost, and improving operational efficiency.
[0046] Such as figure 2 , image 3 , Figure 5 , Figure 7 As shown in some embodiments, the lifting apparatus includes a main hanging pulley set 7, and the main hanging pulley set 7 further includes a fixed pulley set 71 and a moving pulley set 72 connected to the depot 5 in the lifting point 51, and the pulley set 71 and the moving pulley set 72 Connecting a hanging cable 61, the hanging cable 61 is also connected to a deposited winch 6 to place the hanging cable 61 by a sinking winch 6. In the duct floating step, the sinking winch 6 applies a preload force by tightening the hanging cable 61; in the deposition step, the sinking winch 6 is deposited by the lower chain cable 61.
[0047] Such as figure 2 , image 3 , Figure 5 , Figure 7 As shown in some embodiments, in the floating mounting barge assembly step, each sub-floating mounting is assembled, the two main hanging pulleys 7 are mounted on the main direction in the main direction in the main direction of the main truss 1. The vertical plane in which the main truss 1 width direction is the reference surface, and the two main hanging pulleys 7 are disposed relative to the reference face, and the two sets of primary hanging pulley groups are adjusted according to the distance of the two lifting points 51 on the deposition pipe 5. The spacing of 7. Further, when the width of the deposit pipe 5 is not large, it is also necessary that the length of the main truss 1 can be changed by moving the position of the two sets of main hanging pulleys 7 to satisfy the lifting of the floating installation and the sediment 5. The schematic embodiment can flexibly adjust the spacing of the two sets of main hanging pulleys 7, improve the intensity of the floating installation, and improve the work efficiency and reduce the construction cost.
[0048] In some embodiments, in the settling loading step, the floating mounting is not connected to the deposit, that is, the floating mounting is in an air-loaded state, the floating box 4 is suspended on the water surface, and the bottom surface is a height of the water surface. It is greater than the height of the water surface to the top of the sink pipe. Further, the two buoy effuses of floating mounting provide the buoyancy required to make the floating box 4 in the water surface of the water space to satisfy the demand for floating installation to refute the ductile 5, so that the floating installation is refuted to self-float. From the end of the length direction of the deposit pipe 5 across the deposit pipe 5, such as Figure 4 Indicated. The schematic embodiment realizes a self-containerizing tube of floating installation, without having to lifting large-scale lifting boats, reducing construction costs.
[0049] Such as Figure 5 , Image 6 As shown in some embodiments, the bottom surface of the floating box 4 is provided with a plurality of blocks 41. In the duct floating step, the plurality of blocks 41 press the top surface of the deposited pipe 4. By the setting of the block 41, the floating box 4 can be reliably compatible with the ductile 5, avoiding the pressure in the upper surface of the pelifier 5 to be uneven or deformed to cause the floating box 4 and the ductile 5. The schematic embodiment ensures that the floating mounting refar of the dispersion is not relatively movement during the depository floating process, and the stability of the ductile floating is achieved.
[0050] Such as figure 2 , Figure 4 , Figure 5 , Figure 7 As shown, in some embodiments, the deck 2 is also mounted having a bocosphere 8, such as four. In the settlement load step, the bocused coulus 8 is attached to the overdoor pipe 5 through the moor cable 81; during the depositary floating process, the bezer cable 81 is twisted by a moor cable 81 Floating is installed to float the duct 5 to the position to be installed. In some embodiments, the deck 2 is also attached to the installation winch 9, such as two. During the installation of the settlement, the installation winch 9 adjusts the plane displacement of the duct 5 by mounting the cable 91 to perform a docking mount of the deposit tube 5; The position of the seating pipe 5. The schematic embodiment is mounted on the deck 2 of the main truss 1, rather than borrowing a measurement tower to achieve a measuring tower, thus reducing the load of the measuring tower, thus reducing the load of the measuring tower. Save the investment and use of large lifting equipment, and reduce construction costs.
[0051] Such as figure 2 , image 3 As shown, in some embodiments, the deck 2 is also attached to the cabinet generator 10, the electrical chamber 11, and the operation chamber 12. The cabinet generator 10 provides electricity for floating installation. The operation room 12 is used to introduce all control cables in the deposit pipe construction into it, facilitate centralized management, maintenance and use of the equipment; and do not need to be operated in the deposit during the depository floating installation, high safety. The electrical chamber 11 is used in the centralized inspection and maintenance of the electrical equipment on the electrical equipment on the industrial equipment. In some embodiments, both the main truss 3 and the outer side of the floating body 3 are mounted to facilitate the downtime of floating installation, avoiding damage.

Example Embodiment

[0052] Example 2:
[0053] Such as Figure 8 , Figure 9 As shown, the present invention also provides an inner river depositary floating mounting operation method, on the basis of the first example, between the two ends of the two main truss 1 in the two main truss 1 in the longitudinal direction of the two sub-floats, respectively The truss 14 is connected between the two connection truss 14, and the connecting truss 14 and the reinforcing truss 15 are connected by a plurality of sub-truss 101.
[0054] It will be appreciated that the length of the connection truss 15 can be adjusted according to the length of the ductile 5, and is achieved by the number of lift truss 101; The lifting point 51 is position, and the length of the connection truss 14 depends on the spacing between the two main truss 1 of the two sub-floats. Further, the length of the reinforcing truss 15 can be adjusted according to the width of the duct 5, and by the number of lift truss 101; more specifically, the length of the reinforcing truss 15 depends on the spacing between the two connection truss 14. Thus, the present embodiment can flexibly perform the optimized assembly and assembly application of floating installation retrieval according to the width and length of different models, facilitating construction scheduling, reducing construction costs.
[0055] The above-described illustrative embodiment, by connecting the truss 14 and the setting of the truss 15, two sub-floating mounting is fitted together, reducing the number of moor winch 8 required for floating installation refarming; for example, an embodiment is applied to sink When the floating installation is installed, two sub-floating installations are required. Each sub-floating installation is adjusted through the four-midden winch 8 to connect to the sediment 5, and thus the total need to be eight parking bars 8; The floating mounting reflections of this Example 2 rejected two sub-floating mounting, and the position can be adjusted to be connected to the duction pipe 5 by four-midden baffle 8, and thus the second embodiment is reduced. The number of winch 8 is easier to adjust the flat displacement of floating installation.
[0056] Combine Figure 1 - Figure 9 Specifically, the step of explaining the inner river deposit floating installation operation method of the present invention:
[0057] 1) Deposit Tester: The depository 5 to be floated is first tested before the dock is docking to ensure the sedential 5 of the seized pipe 5;
[0058] 2) In place in the semi-tube: tweak the dock to the docking pipe 5, moved to the secondary dressing area;
[0059] 3) Floating mounting barge assembly: The floating mounting of the embodiment can be assembled, or the floating installation of the second embodiment is assembled, and the two assembly methods are selected; further explain the following:
[0060]Embodiment 1 Sub-floating mounting of the floating mounting Refuse: Determine the number of sub-truss 101 according to the width of the ductile 5, sequentially detachably connected to the main truss 1; on the top of the main truss 1 The deck 2 is attached to the deck 2, and the main hammer set 7, the main hanging pulley set 7, the mount winch 8, the mounting winch 9, the cabinet generator 10, the electrical chamber 11, the operation chamber 12, etc., the bottom surface of the main truss 1 The middle is mounted, the floating body 3 is mounted on both ends of the bottom surface of the main truss 1. The spacing of the two floating body 3 on each main truss is greater than the width of the deposit pipe 5; it is necessary to assemble two sub-floating installation;
[0061] Embodiment 2 Floating mounting is assembled: On the basis of the two sub-floating mounting retrieves of the Example, determine the connection truss 14 according to the position of the lift 51 on the deposition pipe 5 and the width of the sub-floating mounting. The quantity of the sub-truss 101, sequentially detachably connects the plurality of sub-truss 101 to the connection truss 14; determine the number of sub-truss 101 required to reinforce the truss 15 according to the pitch of the connection truss 14, and sequentially disassemble the plurality of sub-truss 101. Strengthen the truss 15; in turn, two sub-floating installations are distributed together by connecting the truss 14 and the strengthening truss 15;
[0062] It should be noted that those skilled in the < Floating installation is assembled, then towed as a whole to the secondary dress; Complete the assembly of floating installation.
[0063] 4) Depribes loading: The bocused coil 8 divides the floating mounting to the longitudinal direction of the duct 51 by the mortary cable 81 to cross the duct 5, and make the floating mounting to the inlet pipe 5 Two-pair of lifting point 51; part of the main hanging pulley set 7 in the floating mounting rejection is connected to the lifting point 51 on the deposited pipe 5; at this time, the main hanging pulley set 7 does not apply pull force to the lifting point 51, and the floating installation is in an air-load state. The floating mounting is above the buoyancy of the two floats 3 from the overdoor pipe 5;
[0064] It should be noted that after the floating tube 5 is installed, the installation of the tower of the tower of the tower of the caliber 5 is then performed; the measurement of the tower can be installed, each tower control Can be controlled within 5T, so it is not necessary to use large lifting equipment, reduce construction costs; installation of the top equipment is well known to those skilled in the art, and will not be described herein;
[0065] 5) After the settlement floating: Floating mounting is connected to the deposit pipe 5, the water is irridated to the floating body 3, so that the floating box 4 is dropped until the top surface of the industrial pipe 5; continues to irry in the floating body 3, and placed the winch 6 A certain preload force is applied to each of the hoisting point 51 by tightening the hanging cable 61, so that the block 41 of the floating box 4 is pressed toward the top surface of the dispensing pipe 5, and the floating box 4 is generated between the floating box 4 Friction, ensuring that the floating installation is not generated between the duct 5; the burst floating is installed to float the deposit 5 to the position to be installed;
[0066] 6) Depriba installation: First discharge the water in the floating mounting damper 3, then press the water to the deposited pipe 5 until the negative floating force generated by the ductile 5 reaches a predetermined value, at which time the floating box 4 In-water; then the sinking the winch 6 is placed in the lower tube 5 to perform a docking mount of the deposit pipe 5; the deposition pipe 5 is completed after the installation is completed.
[0067] It will be appreciated that the measurement and control system of the tower during the deposit operation process is measured, and the sinking winch 6 is controlled by the lower chains 5, and the control mounting winch 9 adjusts the plane displacement of the caliber 5 by mounting the cable 91. The control-based berth wrapper 8 adjusts the flat displacement of floating installation through the moor cable 81 to ensure the completion of the inner river deposit and floating installation operation; the specific steps are well known to those skilled in the art, not described herein.
[0068] By explaining a plurality of embodiments of the inner river deposit floating mounting operation method of the present invention, it can be seen that the present invention has at least one or more advantages:
[0069] 1. By the use of assembled floating installation, the structural optimization of floating installation is achieved, and the modular design and application of floating installation refutes is achieved, which is convenient for the construction of floating installation and installation. Dispatching and on-site assembly, solving the problem of overall scheduling equipment for the transportation installation equipment of the existing inner river deposit;
[0070] 2. By using the floating body 3 in the deposit and the operation of the preload force to the lifting point 51, it is ensured that the floating mounting and the ductile 5 does not take relative movement during the deposit. The stability of the indulgence of the sediment 5;
[0071] 3, by providing buoyancy, the operation of the floating tube is supplied with the floating force, and the transportation and mounting equipment of the existing inner river deposit is poorly stabilized during the construction of the inner tube. The mounting of the stability is refuted in the construction process of the deposit, which in turn increases the stability of the inner river deposit, and improve the efficiency of the inner river deposit.
[0072] 4, by using the deck 2 of the main truss 1 in the main truss 2, reduce the load weight of the measurement tower, saving the investment and use of the equipment, reducing construction cost; by using all control systems, control cable and electrical equipment, etc. On the deck 2 of the main truss 1, it is convenient for centralized management, maintenance and use;
[0073] 5. Inner river deposit floating mounting operation method of the present invention, its operation is simple, high flexible, good general, improve floating installation to refute the stability during the construction process of deposit management, and increase work efficiency, reduce construction costs .

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