Pipe-laying barge and pipe-laying method

Abstract

The present application relates to a kind of immersed tube transport sinking barge and immersed tube transport sinking construction method, belong to immersed tube tunnel construction technical field.The immersed tube transport sinking barge includes single hull, pair of cantilever beam, and immersed tube lifting and placing device;Pair of cantilever beam is symmetrically arranged in the width direction of single hull, and cantilever beam is cantilevered out from single hull to the outside of the width direction of single hull;Cantilever beam is at least two pairs and symmetrically arranged relative to the center plane of single hull length direction;Immersed tube lifting and placing device includes the sinking equipment corresponding to cantilever beam one by one, and sinking equipment is installed on cantilever beam, and each sinking equipment is connected to the immersed tube below single hull, to transport immersed tube and control the sinking installation of immersed tube;Wherein, the sinking equipment corresponding to pair of cantilever beam is respectively connected to the both sides of the width direction of immersed tube.The width of the immersed tube transported by the immersed tube transport sinking barge can be close to the upper limit of the width of inland waterway, and the width of inland waterway can be fully utilized.

Description

Technical Field

[0001] The present invention belongs to the technical field of immersed tube tunnel construction, and in particular relates to an immersed tube transport and sinking barge and an immersed tube transport and sinking construction method. Background Art

[0002] Existing specialized engineering vessels used for transporting and laying immersed tubes are typically catamarans. During transport, the tubes are positioned between the catamaran's two buoys, and the vessel's hull width is greater than the width of the tubes being transported. However, in inland river immersed tube tunnel projects, since the construction area for these tunnels is typically located in shallow, narrow inland waterways, the vessel's hull width is limited by the width of the waterway. The number of lanes and traffic volume of an immersed tube tunnel are determined by the width of the tube. The wider the tube, the greater the traffic volume of the completed tunnel. Therefore, when the width of the tube is large, the required vessel's hull width may exceed the width of the inland waterway, making it unnavigable. Therefore, developing an immersed tube transport and laying barge capable of navigating narrow inland waterways and transporting large-width immersed tubes is a pressing technical issue. Summary of the Invention

[0003] In response to the above technical problems, the present invention provides a submerged tube transport and sinking barge and a submerged tube transport and sinking construction method. The width of the submerged tube transport and sinking barge does not need to be greater than the width of the submerged tube it transports. The width of the submerged tube it transports can be close to the upper limit of the inland waterway width, thereby fully utilizing the inland waterway width.

[0004] The present invention provides an immersed tube transport and sinking barge, comprising:

[0005] Single hull;

[0006] Paired cantilever beams are symmetrically arranged on both sides of the monohull in the width direction, and the cantilever beams extend outward from the monohull along the width direction of the monohull; there are at least two pairs of cantilever beams, and they are symmetrically arranged with respect to the center plane of the monohull in the length direction;

[0007] The submerged tube lifting device includes sinking equipment arranged one-to-one corresponding to the cantilever beams. The sinking equipment is installed on the cantilever beams. Each sinking equipment is connected to the submerged tube located under the single hull to transport the submerged tube and control the sinking and installation of the submerged tube; wherein, the sinking equipment corresponding to the cantilever beams arranged in pairs are respectively connected to the two sides of the width direction of the submerged tube.

[0008] In some of the embodiments, a pair of cantilever beams are respectively provided near at least the bow of the monohull and the stern of the monohull.

[0009] In some embodiments, the cantilever beam is detachably connected to the monohull.

[0010] In some embodiments, the cantilever beam is provided with a hoisting opening which passes through the cantilever beam from top to bottom; the sinking equipment includes a sinking winch, a sinking cable and a fixed pulley, the fixed pulley is installed at the hoisting opening, the sinking winch is arranged on the cantilever beam and is located on the side of the hoisting opening close to the single hull, one end of the sinking cable is wrapped around the sinking winch, and the other end passes around the fixed pulley and then extends downward through the hoisting opening to connect to the submerged tube.

[0011] In some embodiments, one end of the cantilever beam close to the single hull is the overlapping end and the other end is the cantilever end. The overlapping end is overlapped on the single hull, the sinking winch is arranged on the overlapping end, and the lifting port is opened at the cantilever end.

[0012] In some embodiments, the overlapping ends are formed with diagonal braces connected to the monohull.

[0013] In some embodiments, the immersed tube transport and laying barge also includes a mooring device, which includes mooring equipment arranged near the four corners of the single hull, and the mooring equipment includes a mooring winch and a mooring cable. The mooring winch is arranged on the single hull, and one end of the mooring cable is wound around the mooring winch, and the other end is used for anchoring on the bottom of the water.

[0014] In some of the embodiments, a pair of cantilever beams arranged near the bow of the monohull and a pair of cantilever beams near the stern of the monohull are respectively arranged in one-to-one correspondence with the mooring equipment arranged at the four corners of the monohull. Among the cantilever beams and mooring equipment arranged in one-to-one correspondence, the cantilever beams are located on the outside of the monohull in the length direction, and the mooring equipment is located on the inside of the monohull in the length direction, and an avoidance opening for the mooring cable to pass through is formed between the diagonal bracing portion of the cantilever beam and the end face of its cantilever end.

[0015] In some of the embodiments, a buffer pad is provided on the bottom of the monohull for buffering collision and friction between the submerged tube and the bottom of the monohull.

[0016] In addition, the present invention also provides a method for transporting and placing immersed tubes, which uses the immersed tube transporting and placing barge of any of the above technical solutions to carry out the transporting and placing of immersed tubes, including the following steps:

[0017] Immersed tube placement: Place the immersed tube on the bottom of a dry dock filled with water;

[0018] Positioning of the immersed tube transport and sinking barge: The immersed tube transport and sinking barge enters the dry dock and is positioned above the immersed tube. When positioning, the direction of the immersed tube transport and sinking barge is adjusted so that the length direction of the single hull is consistent with the length direction of the immersed tube;

[0019] Ship-pipe connection: connect the submerged pipes through the submerged pipe hoisting device, and lift the submerged pipes through the submerged pipe hoisting device so that the submerged pipes fit the bottom of the single hull;

[0020] Transport and placement of immersed tubes: The immersed tubes are transported to the preset placement position by a immersed tube transport and placement barge, and are then placed onto the gravel bed using a immersed tube lifting device.

[0021] Compared with the prior art, the advantages and beneficial effects of the present invention are:

[0022] 1. The immersed tube transport and laying barge provided by the present invention utilizes a single hull. A submerged tube lifting and laying device is mounted on the hull via a cantilever beam cantilevered outward from the side of the hull. This allows the submerged tubes connected to the cantilever beam to fit snugly against the bottom of the hull for transport. The width of the transported submerged tubes can be greater than the combined width of the single hull and its two cantilever beams. This allows the transport of submerged tubes approaching the upper limit of the inland waterway width, maximizing the use of the inland waterway width.

[0023] 2. The immersed tube transportation and sinking construction method provided by the present invention has a simple construction process. In particular, when connecting the ship and the tube, the immersed tube is in a bottom-seated state. The immersed tube is lifted by the immersed tube lifting device, and the immersed tube is fixed to the single hull by utilizing the fit between the immersed tube and the bottom of the single hull. There is no need to accurately locate the position of the ship tube during the ship and tube connection, and the ship and tube connection process is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 A perspective view of an immersed tube transport and submerged barge provided in accordance with one embodiment of the present invention;

[0026] Figure 2 A top view of an immersed tube transport and submerged barge provided in one embodiment of the present invention;

[0027] Figure 3 for Figure 1 A partial enlarged view of point A in the middle;

[0028] Figure 4 A schematic diagram of the structure of an immersed tube transport and submersible barge connected to an immersed tube according to an embodiment of the present invention.

[0029] In the picture:

[0030] 1. Single hull; 2. Cantilever beam; 3. Sinking equipment; 4. Mooring equipment; 5. Buffer pad; 6. Immersed tube;

[0031] 21. Cantilever end; 22. Overlap end; 23. Diagonal bracing part;

[0032] 31. Sinking winch; 32. Sinking cable; 33. Fixed pulley;

[0033] 41. Mooring winch; 42. Mooring line;

[0034] a. Lifting opening; b. Avoidance opening. DETAILED DESCRIPTION

[0035] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0038] As attached Figures 1-4 As shown, in an exemplary embodiment of the submerged tube transport and sinking barge of the present invention, the submerged tube transport and sinking barge includes a single hull 1, paired cantilever beams 2, and a submerged tube hoisting device; the paired cantilever beams 2 are symmetrically arranged on both sides of the single hull 1 in the width direction, and the cantilever beams 2 cantilever from the single hull 1 to the outside of the ship's side along the width direction of the single hull 1; the cantilever beams 2 are at least two pairs, and are symmetrically arranged relative to the center plane of the single hull 1 in the length direction; the submerged tube hoisting device includes sinking equipment 3 arranged in one-to-one correspondence with the cantilever beams 2, and the sinking equipment 3 is installed on the cantilever beams 2, and each sinking equipment 3 is commonly connected to the submerged tube 6 located under the single hull 1 to transport the submerged tube 6 and control the sinking and installation of the submerged tube 6; wherein, the sinking equipment 3 corresponding to the paired cantilever beams 2 are respectively connected to both sides of the width direction of the submerged tube 6.

[0039] The above-mentioned immersed tube transport and laying barge adopts a single hull 1, and is equipped with a immersed tube lifting device through a cantilever beam 2 cantilevered outward from the side of the ship provided on the single hull 1, so that the immersed tube 6 connected to the submerged tube lifting device is fitted against the bottom of the single hull 1 for transportation. The width of the transported immersed tube 6 can be greater than the total width of the single hull 1 and the cantilever beams 2 on both sides thereof, so that the transported immersed tube 6 with a width close to the upper limit of the inland waterway width can be used, thereby maximizing the utilization of the inland waterway width.

[0040] In order to maintain the force balance between the submerged tube 6 and the single hull 1 after connecting the submerged tube 6, as shown in FIG. Figure 1 and Figure 2 As shown, preferably, a pair of cantilever beams 2 are respectively provided near the bow and stern of the monohull 1. When connecting the submerged tube 6, the sinking equipment 3 corresponding to the pair of cantilever beams 2 provided near the bow of the monohull 1 is respectively connected to the two sides of the axial end of the submerged tube 6 near the bow of the monohull 1, and the sinking equipment 3 corresponding to the pair of cantilever beams 2 provided near the stern of the monohull 1 is respectively connected to the two sides of the other axial end of the submerged tube 6 near the stern of the monohull 1, and the top surface of the submerged tube 6 is made to fit the bottom of the monohull 1 to fix the relative position of the submerged tube 6 and the monohull 1, thereby stably transporting the submerged tube 6.

[0041] In order to be suitable for transporting immersed tubes 6 of different widths, preferably, the cantilever beam 2 is detachably connected to the single hull 1, so that a cantilever beam 2 of appropriate length can be selected according to the width of the immersed tube 6 to be transported.

[0042] like Figure 3 As shown, the cantilever beam 2 has a hoisting opening a extending from top to bottom through the cantilever beam 2. The lowering equipment 3 includes a lowering winch 31, a lowering cable 32, and a fixed pulley 33. The fixed pulley 33 is mounted at the hoisting opening a. The lowering winch 31 is mounted on the cantilever beam 2 and is located on the side of the hoisting opening a near the monohull 1. One end of the lowering cable 32 is wound around the lowering winch 31, and the other end passes around the fixed pulley 33 before extending downward through the hoisting opening a to connect to the submerged tube 6. To lower the tube 6, the lowering winch 31 releases the lowering cable 32, allowing the tube 6 to be lowered.

[0043] like Figure 3 As shown, the cantilever beam 2 has one end close to the monohull 1 as a lap joint end 22 and the other end as a cantilever end 21. The lap joint end 22 is lapped onto the monohull 1, and the sinking winch 31 is disposed on the lap joint end 22. A hoisting opening a is provided at the cantilever end 21. In this embodiment, the cantilever beam 2 is overlapped with the monohull 1 via the lap joint end 22, ensuring that the connection strength between the cantilever beam 2 and the monohull 1 meets the stress requirements for connecting the submerged tube 6. Furthermore, the hoisting opening a, for mounting the fixed pulley 33, is disposed at the cantilever end 21 of the cantilever beam 2, maximizing the distance between the two connection points in the width direction of the submerged tube 6, thereby maximizing the width of the submerged tube 6 for transport. Furthermore, the sinking winch 31 is disposed at the lap joint end 22, which helps reduce the stress on the cantilever beam 2.

[0044] like Figure 3 As shown, the overlapped end 22 is formed with a diagonal bracing portion 23 connected to the single hull 1. The diagonal bracing portion 23 can further enhance the connection strength between the overlapped end 22 and the single hull 1.

[0045] Further, such as Figure 1-Figure 3As shown, the submerged tube transport and laying barge also includes a mooring system, which includes mooring equipment 4 located near the four corners of the monohull 1. The mooring equipment 4 includes a mooring winch 41 and a mooring cable 42. The mooring winch 41 is located on the monohull 1. One end of the mooring cable 42 is wound around the mooring winch 41 and the other end is used to anchor to the bottom of the water. The mooring system can fix the position of the submerged tube 6 when it is being laid.

[0046] like Figure 2 and Figure 3 As shown, a pair of cantilever beams 2 located near the bow and a pair of cantilever beams 2 located near the stern of the monohull 1 correspond one-to-one with the mooring devices 4 located at the four corners of the monohull 1. In these corresponding cantilever beams 2 and mooring devices 4, the cantilever beams 2 are located outboard of the monohull 1 in the longitudinal direction, while the mooring devices 4 are located inboard of the monohull 1 in the longitudinal direction. A clearance b is formed between the diagonal bracing portion 23 of the cantilever beams 2 and the end surface of their cantilevered ends 21, allowing the mooring cables 42 to pass through. This arrangement allows the cantilever beams 2 to be placed as close as possible to the bow and stern of the monohull 1, thereby maximizing the distance between the connection points along the longitudinal direction of the submerged tube 6. This helps maintain force balance on the monohull 1 during transport, while also maximizing the length of the submerged tube 6 that can be transported. Furthermore, by providing clearance b in the cantilever beams 2 for the mooring cables 42 to pass through, interference between the mooring cables 42 and the cantilever beams 2 is avoided.

[0047] like Figure 4 As shown, a buffer pad 5 is provided at the bottom of the single hull 1 for buffering collision and friction between the immersed tube 6 and the bottom of the single hull 1 .

[0048] Based on the above-mentioned immersed tube transport and sinking barge, the present invention further provides an immersed tube transport and sinking construction method, which uses the above-mentioned immersed tube transport and sinking barge to carry out immersed tube transport and sinking construction, including the following steps:

[0049] Putting the immersed tube in place: placing the immersed tube 6 on the bottom of a dry dock filled with water. It should be noted that ballast water can be injected into the immersed tube 6 to make it sit on the bottom.

[0050] The immersed tube transport and sinking barge is positioned: the immersed tube transport and sinking barge enters the dry dock and is positioned above the immersed tube 6. When positioned, the direction of the immersed tube transport and sinking barge is adjusted so that the length direction of the single hull 1 is consistent with the length direction of the immersed tube 6;

[0051] Ship pipe connection: The submerged tube 6 is connected by a submerged tube hoisting device, and the submerged tube 6 is hoisted by the submerged tube hoisting device so that the submerged tube 6 is attached to the bottom of the monohull 1. It should be noted that when connecting the submerged tube 6, the submerged cable 32 is lowered by the submerged winch 31, and the submerged cable 32 is connected to the submerged tube 6 underwater. The submerged cable 32 is reeled in by the submerged winch 31 to hoist the submerged tube 6. As the submerged tube 6 is hoisted, the ballast water in the submerged tube 6 is gradually discharged.

[0052] Transport and placement of immersed tube: The immersed tube 6 is transported to the preset placement position by the immersed tube transport and placement barge, and the immersed tube 6 is placed on the gravel base bed by the immersed tube lifting device.

[0053] The above-mentioned immersed tube transportation and sinking construction method has a simple construction process. In particular, when the ship pipe is connected, the immersed tube 6 is in a bottom-seated state. The immersed tube 6 is lifted by the immersed tube lifting device, and the immersed tube 6 is fixed to the single hull 1 by utilizing the fit between the immersed tube 6 and the bottom of the single hull 1. There is no need to accurately locate the position of the ship pipe when connecting the ship pipe, and the ship pipe connection process is simple.

[0054] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the same. Although the present invention has been described in detail with reference to preferred embodiments, persons skilled in the art should understand that the specific implementation methods of the present invention may still be modified or some technical features may be replaced by equivalents without departing from the spirit of the technical solutions of the present invention, and all of these should fall within the scope of the technical solutions claimed for protection by the present invention.

Claims

1. Immersed tube transport and laying barge, characterized by: include: Single hull; cantilever beams arranged in pairs, the cantilever beams arranged in pairs are symmetrically arranged on both sides of the single hull in the width direction, and the cantilever beams extend from the single hull to the outside of the ship's side along the width direction of the single hull; the cantilever beams are at least two pairs and are symmetrically arranged with respect to the center plane of the single hull in the length direction; The submerged tube hoisting device includes sinking equipment arranged one-to-one corresponding to the cantilever beams, and the sinking equipment is installed on the cantilever beams. Each of the sinking equipment is commonly connected to the submerged tube located under the single hull to transport the submerged tube and control the sinking and installation of the submerged tube; wherein the sinking equipment corresponding to the cantilever beams arranged in pairs are respectively connected to both sides of the width direction of the submerged tube.

2. The immersed tube transport and sinking barge according to claim 1, characterized in that: At least a pair of cantilever beams are respectively provided near the bow of the single hull and near the stern of the single hull.

3. The immersed tube transport and laying barge according to claim 1, characterized in that: The cantilever beam is detachably connected to the single hull.

4. The immersed tube transport and sinking barge according to any one of claims 1 to 3, characterized in that: The cantilever beam is provided with a hoisting opening which passes through the cantilever beam from top to bottom; the sinking equipment includes a sinking winch, a sinking cable and a fixed pulley, the fixed pulley is installed at the hoisting opening, the sinking winch is arranged on the cantilever beam and is located on the side of the hoisting opening close to the single hull, one end of the sinking cable is wound around the sinking winch, and the other end passes around the fixed pulley and then extends downward through the hoisting opening to connect to the submerged tube.

5. The immersed tube transport and sinking barge according to claim 4, characterized in that: One end of the cantilever beam close to the single hull is a lap end, and the other end is a cantilever end. The lap end is lapped on the single hull, the sinking winch is arranged on the lap end, and the hoisting port is opened at the cantilever end.

6. The immersed tube transport and sinking barge according to claim 5, characterized in that: The overlapped end is formed with a diagonal bracing portion connected to the single hull.

7. The immersed tube transport and sinking barge according to claim 1 or 6, characterized in that: The immersed tube transport and laying barge also includes a mooring device, which includes mooring equipment arranged near the four corners of the single hull. The mooring equipment includes a mooring winch and a mooring cable. The mooring winch is arranged on the single hull, and one end of the mooring cable is wound around the mooring winch and the other end is used for anchoring on the bottom of the water.

8. The immersed tube transport and sinking barge according to claim 7, characterized in that: A pair of cantilever beams arranged near the bow of the single hull and a pair of cantilever beams arranged near the stern of the single hull are respectively arranged in one-to-one correspondence with the mooring equipment arranged at the four corners of the single hull. Among the cantilever beams and mooring equipment arranged in one-to-one correspondence, the cantilever beams are located on the outside of the length direction of the single hull, and the mooring equipment is located on the inside of the length direction of the single hull, and an avoidance opening for the mooring cable to pass through is formed between the diagonal support part of the cantilever beam and the end face of its cantilever end.

9. The immersed tube transport and sinking barge according to claim 1, characterized in that: The bottom of the single hull is provided with a buffer pad for buffering the collision and friction between the immersed tube and the bottom of the single hull.

10. The immersed tube transportation and sinking construction method is characterized by: The immersed tube transport and sinking construction is carried out using the immersed tube transport and sinking barge according to any one of claims 1 to 9, comprising the following steps: Immersed tube placement: Place the immersed tube on the bottom of a dry dock filled with water; The immersed tube transport and sinking barge is positioned: the immersed tube transport and sinking barge enters the dry dock and is positioned above the immersed tube. When positioned, the direction of the immersed tube transport and sinking barge is adjusted so that the length direction of the single hull is consistent with the length direction of the immersed tube; Ship-pipe connection: connecting the submerged tube by means of the submerged tube hoisting device, and hoisting the submerged tube by means of the submerged tube hoisting device so that the submerged tube fits the bottom of the single hull; Transport and placement of immersed tubes: The immersed tubes are transported to a preset placement position by the immersed tube transport and placement barge, and are placed onto a gravel bed using the immersed tube hoisting device.

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