Modular sinking barge and method of assembling the same

Abstract

The present application relates to a combined sinking barge and its assembling method, belonging to the technical field of immersed tunnel construction. The combined sinking barge comprises a hull and a beam moving mechanism. The hull comprises two floats and two beams, the beams are detachably connected with the floats, and the two beams are detachably connected to form a combination. The beam moving mechanism is used to move the second beam to the longitudinal second end of the float after the first beam and the second beam are detached when the combination is supported between the longitudinal first ends of the two floats. A set of beam moving mechanisms is respectively arranged between the longitudinal second end of each float and the second beam. Each set of beam moving mechanisms comprises a traction wheel arranged at the longitudinal second end of the float, a traction winch arranged at the second beam, and a traction rope with one end connected to the traction winch. When the second beam is moved, the end of the traction rope away from the traction winch is wound around the traction wheel and connected to the second beam. The combined sinking barge can be quickly assembled with high efficiency and short cycle.

Description

Technical Field

[0001] This invention belongs to the field of immersed tunnel construction technology, and particularly relates to a combined immersed barge and its assembly method. Background Technology

[0002] Immersed tunnels, as a type of large-scale underwater tunnel engineering, have the advantages of a wide range of tunnel cross-sectional shapes, low requirements for foundations, shallow burial depth which can effectively shorten the route length, and parallel operation of pipe section construction procedures. They are particularly suitable for engineering sites such as soft foundations, riverbeds, or seabeds where it is easy to excavate the foundation trench using water dredging facilities, and are widely used in cross-sea, cross-river, and cross-river projects.

[0003] Immersion tunnel installation is a crucial step in the construction of immersed tunnels. Currently, immersion barges or self-propelled floating installation vessels (see patent CN106516021A) are commonly used for this operation. However, existing immersion barges or self-propelled floating installation vessels typically have large drafts, limiting their operation to the open sea or navigable Class I and II waterways. In limited construction areas, such as Class IV waterways (navigable to 500-ton vessels, with a depth of 2.5-3.2m and a bottom width of 40-45m), the dimensions of existing immersion barges or self-propelled floating installation vessels are insufficient to meet navigation requirements, making it impossible to tow them into the site. To reduce the requirements for channel depth and width, a modular immersed tunnel transport and installation barge (see patent CN110053720A) has been developed for immersed tunnel installation. However, this existing modular immersed tunnel transport and installation barge usually requires the separate transport of two crossbeams during assembly, and the two crossbeams need to be positioned and moved separately. The assembly process is cumbersome and the construction efficiency is low.

[0004] Therefore, how to provide a modular immersed tube placement barge that is easier to assemble is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a modular submersible barge and its assembly method, which enables rapid assembly with high efficiency and a short cycle.

[0006] This invention provides a combined submersible barge, comprising:

[0007] The hull includes:

[0008] Two floating bodies are arranged side by side in the transverse direction, with the length of the floating bodies as the longitudinal direction.

[0009] Two crossbeams are installed horizontally between two floats, with each crossbeam located at one of the two ends of the float in the longitudinal direction. The crossbeams are detachably connected to the floats. When the crossbeams are separated from the floats, the two crossbeams can be detachably connected to form a combined structure. The crossbeam closer to the first end of the float in the longitudinal direction is the first crossbeam, and the crossbeam closer to the second end of the float in the longitudinal direction is the second crossbeam.

[0010] A beam moving mechanism is used to move the second beam to the second longitudinal end of the float after the first beam and the second beam are separated when the assembly is supported between the first longitudinal ends of the two floats; a set of beam moving mechanisms is provided between the second longitudinal ends of the two floats and the second beam, and each set of beam moving mechanisms includes:

[0011] A traction wheel is located at the second longitudinal end of the float.

[0012] The traction winch is mounted on the second crossbeam;

[0013] The traction rope, one end of which is connected to the traction winch, is used to move the second crossbeam. The end of the traction rope away from the traction winch passes over the traction wheel and is connected to the second crossbeam.

[0014] In some embodiments, the beam moving mechanism further includes a beam moving support for supporting the lateral end of the second beam, the beam moving support being slidably connected to the float and moving longitudinally relative to the float.

[0015] In some embodiments, the float includes crossbeam connecting portions located at both longitudinal ends and a support portion connected between the two crossbeam connecting portions. The support portion is provided with a track extending longitudinally, and the crossbeam movable support is slidably connected to the track. Each end of the crossbeam is provided with an overlapping portion. When the two crossbeams are connected to the two floats to form a hull, the two overlapping portions of the crossbeams overlap with the two crossbeam connecting portions at the same longitudinal end of the two floats, respectively. When the assembly is supported on the first longitudinal end of the two floats, the two overlapping portions of the first crossbeam overlap with the two crossbeam connecting portions at the first longitudinal end of the two floats, respectively, and the two overlapping portions of the second crossbeam are supported on the crossbeam movable support of the two floats, respectively.

[0016] In some embodiments, the bottom surface of the overlapping portion of the second crossbeam is provided with a slider, the top surface of the crossbeam moving support is provided with a first groove extending longitudinally, and the top surface of the crossbeam connecting portion at the second longitudinal end of the float is provided with a second groove extending longitudinally; when the overlapping portion of the second crossbeam is supported by the crossbeam moving support, the slider slides into the first groove; when the overlapping portion of the second crossbeam overlaps with the crossbeam connecting portion at the second longitudinal end of the float, the slider slides into the second groove.

[0017] In some embodiments, the overlap and the beam connection are detachably connected via a first connector.

[0018] In some embodiments, the two ends of the crossbeam are also provided with limiting members for abutting against the side of the float to limit the relative position of the crossbeam and the float, and a cavity for accommodating the crossbeam connection portion of the float is formed below the overlapping portion, and the limiting members are provided on the cavity wall on the side of the cavity facing the crossbeam connection portion.

[0019] In some embodiments, in the assembly, the two crossbeams have opposing second and third connectors on opposite sides, and the opposing second and third connectors are detachably connected.

[0020] In some embodiments, the combined sinking barge also includes a tube lifting mechanism, which is mounted on two crossbeams and is used to connect the tube located below the crossbeams and in the space between the two crossbeams when the crossbeams are connected to the floats to form the hull, and to control the sinking of the tube.

[0021] In addition, the present invention also provides a method for assembling a modular submersible barge, comprising the following steps:

[0022] Transportation: Connect the two crossbeams to form a combined structure, and transport the two floats and the combined structure to the area to be constructed.

[0023] Combined body support: Control the two floats to sink, move the two floats to the lower sides of the combined body respectively, and make the two floats parallel; control the two floats to float up, so as to support the combined body through the two floats. When supporting, the combined body is located between the first longitudinal ends of the two floats.

[0024] Assemble the hull by deforming the combined structure: The traction ropes in the two beam moving mechanisms are respectively passed around the traction wheels set at the second longitudinal end of the two floats and connected to the second beam; the connection between the first beam and the second beam is disconnected, and the traction winches in the two beam moving mechanisms are used to simultaneously wind up the traction ropes to pull the second beam towards the second longitudinal end of the float, until the second beam moves to the second longitudinal end of the float; the first beam and the second beam are respectively connected to the two floats to complete the assembly.

[0025] In some embodiments, during the assembly support step, when the floats support the assembly, the overlapping portions at both ends of the first crossbeam overlap onto the crossbeam connecting portions at the first longitudinal ends of the two floats, and the overlapping portions at both ends of the second crossbeam are supported on the crossbeam moving supports of the two floats, respectively. During the assembly deformation and hull assembly step, when the traction winch winds up the traction rope, the second crossbeam moves to a position close to the second longitudinal end of the float by moving the crossbeam moving support along the track set on the float. The traction winch continues to wind up the traction rope so that the overlapping portion of the second crossbeam disengages from the crossbeam moving support and moves to the crossbeam connecting portion at the second longitudinal end of the float.

[0026] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0027] 1. The modular sinking barge provided by the present invention, by setting the hull floats and crossbeams of the hull to be detachably connected, allows the floats and the assembly composed of crossbeams to be transported to the construction site for assembly. During assembly, the assembly is completed by supporting the assembly between the same longitudinal end of the two floats and then moving one of the crossbeams in the assembly to the other longitudinal end of the floats through the set crossbeam moving mechanism. The assembly process is simple, efficient and has a short cycle.

[0028] 2. The combined immersed tube sinking barge provided by the present invention moves the crossbeam through a crossbeam moving mechanism that cooperates with traction wheels, traction winches and traction ropes. There is no need to lay out additional ropes to move the crossbeam. Moreover, the cooperation of traction wheels and traction ropes can guide the movement of the crossbeam, so that the crossbeam can be quickly moved into place and the assembly efficiency is high.

[0029] 3. The combined immersed tube launching barge provided by the present invention supports the transverse ends of the crossbeam by a crossbeam moving support member set on two floats, and then moves the crossbeam relative to the floats in the longitudinal direction by the crossbeam moving support member, so as to realize the rapid movement of the crossbeam, which is beneficial to improving the assembly efficiency. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0031] Figure 1 This is a perspective view of a combined immersed tube placement barge in one embodiment of the present invention;

[0032] Figure 2 This is a top view of a combined immersed tube placement barge in one embodiment of the present invention;

[0033] Figure 3 for Figure 1 A magnified view of a section at point A in the middle;

[0034] Figure 4 This is a side view of a combined immersed tube placement barge in one embodiment of the present invention;

[0035] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0036] Figure 6 This is a top view of the assembly in one embodiment of the present invention;

[0037] Figure 7 This is a front view of the assembly in one embodiment of the present invention;

[0038] Figure 8This is a top view of the assembly supported on the longitudinal first end of the float in one embodiment of the present invention;

[0039] Figure 9 This is a front view of the assembly supported on the longitudinal first end of the float in one embodiment of the present invention;

[0040] Figure 10 This is a top view of the second crossbeam moving longitudinally towards the second end of the float in one embodiment of the present invention;

[0041] Figure 11 This is a front view of the second crossbeam moving longitudinally towards the second end of the float in one embodiment of the present invention;

[0042] Figure 12 This is a top view of the assembled combined immersed tube launching barge in one embodiment of the present invention;

[0043] Figure 13 This is a front view of the assembled combined immersed tube launching barge in one embodiment of the present invention.

[0044] In the picture:

[0045] 1. Hull; 2. Immersed tube lifting mechanism; 3. Crossbeam moving mechanism;

[0046] 11. Float; 111. Crossbeam connecting part; 1111. Second slide; 112. Support part; 113. Track; 12. Crossbeam; 12a. First crossbeam; 12b. Second crossbeam; 121. Overlapping part; 1211. Slider; 122. Limiting member; 13. Second connecting member; 14. Third connecting member;

[0047] 21. Lowering the winch; 22. Installing the winch;

[0048] 31. Traction wheel; 32. Traction winch; 33. Traction rope; 34. Crossbeam moving support; 341. First chute. Detailed Implementation

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0050] In the description of this invention, it should be understood that the terms "lateral", "longitudinal", "up", "down", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0051] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0052] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] As attached Figures 1-13 As shown in the schematic embodiment of the modular submersible barge of the present invention, the modular submersible barge includes a hull 1 and a beam moving mechanism 3; the hull 1 includes two floats 11 and two beams 12, with the length direction of the floats 11 as the longitudinal direction, the two floats 11 are arranged side by side in the transverse direction, and the two beams 12 are both erected in the transverse direction between the two floats 11, and the two beams 12 are respectively located at the longitudinal ends of the floats 11; the beams 12 are detachably connected to the floats 11, and when the beams 12 are detached from the floats 11, the two beams 12 are detachably connected to form a modular assembly; wherein, the beam closer to the first longitudinal end of the float 11 is the first beam 12a, and the beam closer to the second longitudinal end of the float 11 is the second beam 12b; the beam moving mechanism 3 is used to... When the assembly is supported between the first longitudinal ends of the two floats 11, after the first crossbeam 12a and the second crossbeam 12b are separated, the second crossbeam 12b is moved to the second longitudinal end of the float 11. A set of crossbeam moving mechanisms 3 is provided between the second longitudinal ends of the two floats 11 and the second crossbeam 12b. Each set of crossbeam moving mechanisms 3 includes a traction wheel 31, a traction winch 32 and a traction rope 33. The traction wheel 31 is located at the second longitudinal end of the float 11, the traction winch 32 is located on the second crossbeam 12b, and one end of the traction rope 33 is connected to the traction winch 32. When moving the second crossbeam 12b, the end of the traction rope 33 away from the traction winch 32 passes around the traction wheel 31 and is connected to the second crossbeam 12b.

[0054] like Figures 6-13As shown, the assembly process of the above-mentioned combined sinking barge is as follows: During transportation, the two crossbeams 12 are connected to form a combined body, and the two floats 11 and the combined body are transported to the area above the construction site; then, the two floats 11 are controlled to sink, and the two floats 11 are moved to the lower side of the horizontal ends of the combined body, and the two floats 11 are made parallel. The two floats 11 are controlled to float upward, so as to support the combined body through the two floats 11. During support, the combined body is located between the first longitudinal ends of the two floats 11; the traction ropes 33 in the two crossbeam moving mechanism 3 are... The traction wheels 31, which are located at the second longitudinal ends of the two floats 11, are respectively connected to the second crossbeam 12b. The connection between the first crossbeam 12a and the second crossbeam 12b is disconnected. The traction winches 32 in the two crossbeam moving mechanisms 3 simultaneously wind up the traction ropes 33 to pull the second crossbeam 12b towards the second longitudinal end of the float 11 until the second crossbeam 12b moves to the second longitudinal end of the float 11. The first crossbeam 12a and the second crossbeam 12b are then connected to the two floats 11 to complete the assembly.

[0055] The aforementioned modular submersible barge, by making the floats 11 and crossbeams 12 of the hull 1 detachably connected, allows the floats 11 and the assembly composed of crossbeams 12 to be transported separately to the construction site for assembly. During assembly, the assembly is supported between the same longitudinal end of the two floats 11, and then one crossbeam 12 in the assembly is moved to the other longitudinal end of the float 11 by the crossbeam moving mechanism 3, thus completing the assembly. The assembly process is simple, efficient, and has a short cycle. Moreover, the aforementioned modular submersible barge moves the crossbeams 12 through the crossbeam moving mechanism 3, which uses traction wheels 31, traction winches 32, and traction ropes 33, eliminating the need for additional ropes to move the crossbeams 12. Furthermore, the cooperation of traction wheels 31 and traction ropes 33 guides the movement of the crossbeams 12, enabling them to move quickly into place, resulting in high assembly efficiency. In addition, the above-mentioned combined immersed tube barge adopts a combined structure for its hull 1, which can reduce the requirements for water depth and width of the channel and meet the requirements for construction in the Class IV inland waterway area.

[0056] To facilitate the movement of the crossbeam 12 during assembly, such as Figure 1 , Figure 9 and Figure 10 As shown, the beam moving mechanism 3 also includes a beam moving support 34 for supporting the lateral ends of the second beam 12b. The beam moving support 34 is slidably connected to the float 11 and moves longitudinally relative to the float 11. When moving the second beam 12b, the lateral ends of the second beam 12b are supported by the beam moving support 34 provided on the two floats 11, and the second beam 12b is moved longitudinally relative to the float 11 by the beam moving support 34, realizing the rapid movement of the second beam 12b, which is beneficial to improving assembly efficiency.

[0057] Specifically, in this embodiment, as Figure 1 , Figures 8-11 As shown, the floating body 11 includes crossbeam connecting portions 111 located at both longitudinal ends and a support portion 112 connecting the two crossbeam connecting portions 111. The support portion 112 is provided with a track 113 extending longitudinally, and the crossbeam moving support member 34 is slidably connected to the track 113. The two ends of the crossbeam 12 are respectively provided with overlapping portions 121. When the two crossbeams 12 are connected to the two floating bodies 11 to form the hull 1, the two overlapping portions 121 of the crossbeam 12 overlap with the two crossbeam connecting portions 111 at the same longitudinal end of the two floating bodies 11. When the assembly is supported at the first longitudinal end of the two floating bodies 11, the two overlapping portions 121 of the first crossbeam 12a overlap with the two crossbeam connecting portions 111 at the first longitudinal end of the two floating bodies 11, and the two overlapping portions 121 of the second crossbeam 12b are respectively supported on the crossbeam moving support member 34 of the two floating bodies 11. Figures 8-13 As shown, during the assembly process, when the assembly is supported by the float 11, the overlapping portions 121 at both ends of the first crossbeam 12a overlap onto the crossbeam connecting portions 111 at the first longitudinal end of the two floats 11, and the overlapping portions 121 at both ends of the second crossbeam 12b are supported on the crossbeam moving support members 34 of the two floats 11, respectively. When the traction winch 32 winds up the traction rope 33, the second crossbeam 12b moves to the second longitudinal end of the float 11 by moving the crossbeam moving support member 34 along the track 113 set on the float 11. The traction winch 32 continues to wind up the traction rope 33 so that the overlapping portions 121 of the second crossbeam 12b disengage from the crossbeam moving support member 34 and move to the crossbeam connecting portions 111 at the second longitudinal end of the float 11. In this embodiment, the crossbeam connecting part 111 and the crossbeam moving support 34 provided on the float 11 cooperate with the overlapping part 121 provided on the crossbeam 12, so that the assembly is supported between the same longitudinal end of the two floats 11. Then, by moving the crossbeam moving support 34 along the track 113, one of the crossbeams 12 moves to the other longitudinal end of the float 11. The assembly process is simple, efficient, and has a short cycle. It should be noted that, as Figure 2 As shown, the track 113 extends from the crossbeam connection 111 at one longitudinal end of the float 11 to the crossbeam connection 111 at the other longitudinal end. It should also be noted that the overlapping part 121 and the crossbeam connection 111 are detachably connected by a first connector (e.g., a connecting bolt).

[0058] like Figure 3 and Figure 8As shown, in this embodiment, the bottom surface of the overlapping portion 121 of the second crossbeam 12b is provided with a slider 1211, the top surface of the crossbeam moving support 34 is provided with a first groove 341 extending longitudinally, and the top surface of the crossbeam connecting portion 111 at the second longitudinal end of the float 11 is provided with a second groove 1111 extending longitudinally. When the overlapping portion 121 of the second crossbeam 12b is supported by the crossbeam moving support 34, the slider 1211 slides into the first groove 341. When the overlapping portion 121 of the second crossbeam 12b overlaps with the crossbeam connecting portion 111 at the second longitudinal end of the float 11, the slider 1211 slides into the second groove 1111. The slider 1211, located on the bottom surface of the overlapping portion 121 of the second crossbeam 12b, engages with the first groove 341 on the top surface of the crossbeam moving support 34. This prevents the second crossbeam 12b from detaching from the crossbeam moving support 34 during movement. Simultaneously, the slider 1211, located on the bottom surface of the overlapping portion 121 of the second crossbeam 12b, engages with the second groove 1111 on the top surface of the crossbeam connecting portion 111 of the float 11, facilitating the movement of the second crossbeam 12b from the crossbeam moving support 34 to the crossbeam connecting portion 111 of the float 11. It should be noted that the first groove 341 and the second groove 1111 are on the same straight line.

[0059] Furthermore, such as Figure 4 and Figure 5 As shown, both ends of the crossbeam 12 are also provided with limiting members 122 for abutting against the sides of the float 11 to limit the relative position of the crossbeam 12 and the float 11. A cavity is formed below the overlapping portion 121 to accommodate the crossbeam connecting portion 111 of the float 11. The limiting member 122 is disposed on the cavity wall facing the crossbeam connecting portion 111. By providing a cavity below the overlapping portion 121 of the crossbeam 12, which cooperates with the crossbeam connecting portion 111 of the float 11, rapid positioning between the overlapping portion 121 and the crossbeam connecting portion 111 can be achieved. Simultaneously, by limiting the position of the crossbeam connecting portion 111 in the cavity through the limiting member 122, collision between the crossbeam connecting portion 111 of the float 11 and the side wall of the cavity can be avoided. To facilitate the installation of the limiting member 122, such as... Figure 5 As shown, the upper part of the cavity wall facing the crossbeam connection 111 is a vertical surface, and the lower part is an inclined surface that slopes away from the crossbeam connection 111. The limiting member 122 is provided on the inclined surface.

[0060] To facilitate the assembly of the two crossbeams 12 into a combined unit, such as Figure 7As shown, in the assembly, two crossbeams 12 have opposing second connectors 13 and third connectors 14 on opposite sides, which are detachably connected. The assembly is achieved through the detachable connection of the second connectors 13 and third connectors 14. Specifically, in this embodiment, the second connector 13 is a connecting seat, and the third connector 14 is a connecting plate. The connecting plate is inserted into the connecting seat and hinged to it with bolts. This detachable connection structure, with the connecting seat, connecting plate, and bolts working together, is simple in structure and facilitates the assembly and disassembly of the assembly.

[0061] In addition, it should be noted that, such as Figure 1 As shown, the combined sinking barge also includes a pipe-laying mechanism 2, which is mounted on two crossbeams 12. This mechanism connects the pipe located below the crossbeams 12 and between the two crossbeams 11, in the state where the crossbeams 12 and the floating bodies 11 form the hull 1, and controls the sinking of the pipe. Specifically, the pipe-laying mechanism 2 includes multiple sinking winches 21 and multiple installation winches 22 arranged on the two crossbeams 12. The sinking winches 21 are connected to sinking cables for sinking the pipe, and the installation winches 22 are connected to installation cables for adjusting the position and angle of the pipe.

[0062] Based on the above-described modular submersible barge, the present invention also provides a method for assembling the modular submersible barge, comprising the following steps:

[0063] S1 Transportation: Connect the two crossbeams 12 to form a combined body, and transport the two floats 11 and the combined body to the area above the construction area;

[0064] S2 Assembly Support: Control the two floats 11 to sink, move the two floats 11 to the lower side of the lateral ends of the assembly, and make the two floats 11 parallel; control the two floats 11 to float up, so as to support the assembly through the two floats 11. When supporting, the assembly is located between the first longitudinal ends of the two floats 11.

[0065] S3 Assembly Deformation Assembly Hull 1: The traction ropes 33 in the two beam moving mechanisms 3 are respectively passed around the traction wheels 31 set at the second longitudinal end of the two floats 11 and connected to the second beam 12b; the connection between the first beam 12a and the second beam 12b is disconnected, and the traction winches 32 in the two beam moving mechanisms 3 are used to simultaneously wind up the traction ropes 33 to pull the second beam 12b towards the second longitudinal end of the float 11 until the second beam 12b moves to the second longitudinal end of the float 11; the first beam 12a and the second beam 12b are respectively connected to the two floats 11 to complete the assembly.

[0066] The above-mentioned assembly method for the combined submerged barge involves connecting two crossbeams 12 to form a combined body, and transporting the floats 11 and the combined body to the construction site for assembly. During assembly, the combined body is supported between the first longitudinal ends of the two floats 11, and then one of the crossbeams 12 in the combined body is moved along the floats 11 to the second longitudinal end of the floats 11 by the crossbeam moving mechanism 3, thus completing the assembly. The assembly process is simple, efficient, and has a short cycle.

[0067] In some embodiments, such as Figure 8 and Figure 9 As shown, in the assembly support step, when the float 11 supports the assembly, the overlapping portions 121 at both ends of the first crossbeam 12a overlap with the crossbeam connecting portions 111 at the first longitudinal ends of the two floats 11, and the overlapping portions 121 at both ends of the second crossbeam 12b are respectively supported on the crossbeam moving support members 34 of the two floats 11; as Figures 10-13 As shown, in the first step of the combined assembly of the hull, when the traction winch 32 winds up the traction rope 33, the second crossbeam 12b moves to the longitudinal second end near the float 11 by the movement of the crossbeam moving support 34 along the track 113 set on the float 11. The traction winch 32 continues to wind up the traction rope 33 so that the overlapping part 121 of the second crossbeam 12b disengages from the crossbeam moving support 34 and moves to the crossbeam connecting part 111 at the longitudinal second end of the float 11. In this embodiment, the crossbeam connecting part 111 and the crossbeam moving support 34 set on the float 11 cooperate with the overlapping part 121 set on the crossbeam 12, so that the combined assembly is supported between the longitudinal first ends of the two floats 11. Then, by the movement of the crossbeam moving support 34 along the track 113, the second crossbeam 12b moves to the longitudinal second end of the float 11. The assembly process is simple, efficient, and has a short cycle.

[0068] It should be noted that, in the assembly support step, before controlling the two floats 11 to float, there is also a step of adjusting the position of the crossbeam moving support 34 so that the crossbeam moving support 34 is located directly below the overlap 121 of the second crossbeam 12b.

[0069] It should also be noted that during the assembly support step, when controlling the two floats 11 to float upwards, the floats 11 are first made to float until the top of the crossbeam connection 111 at the first end of the float 11 contacts the bottom of the overlapping part 121 of the first crossbeam 12a in the assembly, and the top of the crossbeam moving support 34 contacts the bottom of the overlapping part 121 of the second crossbeam 12b. The overlapping part 121 of the first crossbeam 12a is initially connected to the crossbeam connection 111 at the first longitudinal end of the two floats 11. Then, the two floats 11 are controlled to continue to float upwards so that the assembly is supported on the first longitudinal end of the two floats 11. This step-by-step floating method, compared to floating in one step, can avoid the assembly from slipping off the longitudinal end of the float 11 when the floats 11 float upwards to lift the assembly, greatly reducing the construction risk.

[0070] Through the description of several embodiments of the combined submerged barge and its assembly method of the present invention, it can be seen that the embodiments of the combined submerged barge and its assembly method of the present invention have at least one or more of the following advantages:

[0071] 1. The combined sinking barge provided in this embodiment of the invention, by setting the floats 11 and crossbeams 12 of the hull 1 to be detachably connected, enables the floats 11 and the assembly composed of crossbeams 12 to be transported to the construction site for assembly. During assembly, the assembly is supported between the same longitudinal end of the two floats 11, and then the crossbeam moving mechanism 3 is set to move one of the crossbeams 12 in the assembly to the other longitudinal end of the float 11, thus completing the assembly. The assembly process is simple, efficient and has a short cycle.

[0072] 2. The combined immersed tube sinking barge provided in this embodiment of the invention moves the crossbeam 12 through the crossbeam moving mechanism 3, which is composed of traction wheel 31, traction winch 32 and traction rope 33. There is no need to lay out ropes to move the crossbeam 12. Moreover, the cooperation of traction wheel 31 and traction rope 33 can guide the movement of the crossbeam 12, so that the crossbeam 12 can be moved into place quickly, and the assembly efficiency is high.

[0073] 3. The combined immersed tube launching barge provided in this embodiment of the invention supports the two ends of the crossbeam 12 by the crossbeam moving support member 34 set on the two floats 11. Then, the crossbeam 12 is moved in the longitudinal direction relative to the floats 11 by the crossbeam moving support member 34, so as to realize the rapid movement of the crossbeam 12, which is beneficial to improving the assembly efficiency.

[0074] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0075] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A modular sinking barge, characterized in that, include: The hull includes: Two floats are arranged side by side in the transverse direction, with the length direction of the floats as the longitudinal direction. Two crossbeams are provided, both of which are horizontally mounted between the two floats and located at the longitudinal ends of the floats. The crossbeams are detachably connected to the floats, and when the crossbeams are separated from the floats, the two crossbeams are detachably connected to form a combined assembly. The crossbeam closer to the first longitudinal end of the float is the first crossbeam, and the crossbeam closer to the second longitudinal end of the float is the second crossbeam. A beam moving mechanism is used to move the second beam to the longitudinal second end of the float after the first beam and the second beam are separated when the assembly is supported between the longitudinal first ends of the two floats; a set of beam moving mechanisms is respectively provided between the longitudinal second ends of the two floats and the second beam, and each set of beam moving mechanisms includes: A traction wheel is disposed at the second longitudinal end of the float; A traction winch is mounted on the second crossbeam; A traction rope, one end of which is connected to the traction winch, when used to move the second crossbeam, has its end away from the traction winch pass over the traction wheel and connect to the second crossbeam.

2. The combined submersible barge according to claim 1, characterized in that, The beam moving mechanism further includes a beam moving support for supporting the lateral end of the second beam, the beam moving support being slidably connected to the float and moving longitudinally relative to the float.

3. The combined sinking barge according to claim 2, characterized in that, The float includes crossbeam connecting portions located at both longitudinal ends and a support portion connecting the two crossbeam connecting portions. The support portion is provided with a longitudinally extending track, and the crossbeam movable support is slidably connected to the track. Each end of the crossbeam is provided with an overlapping portion. When the two crossbeams and the two floats are connected to form the hull, the two overlapping portions of the crossbeam overlap with the two crossbeam connecting portions at the same longitudinal end of the two floats, respectively. When the assembly is supported on the first longitudinal end of the two floats, the two overlapping portions of the first crossbeam overlap with the two crossbeam connecting portions at the first longitudinal end of the two floats, respectively, and the two overlapping portions of the second crossbeam are supported on the crossbeam movable support of the two floats, respectively.

4. The combined sinking barge according to claim 3, characterized in that, The bottom surface of the overlapping portion of the second crossbeam is provided with a slider, the top surface of the crossbeam moving support is provided with a first groove extending longitudinally, and the top surface of the crossbeam connecting portion at the second longitudinal end of the float is provided with a second groove extending longitudinally; when the overlapping portion of the second crossbeam is supported by the crossbeam moving support, the slider slides into the first groove; when the overlapping portion of the second crossbeam overlaps with the crossbeam connecting portion at the second longitudinal end of the float, the slider slides into the second groove.

5. The combined submersible barge according to claim 3, characterized in that, The overlapping part and the crossbeam connection part are detachably connected by a first connector.

6. The combined sinking barge according to claim 3, characterized in that, Both ends of the crossbeam are provided with limiting members for abutting against the side of the float to limit the relative position of the crossbeam and the float. A cavity is formed below the overlapping part for accommodating the crossbeam connecting part of the float. The limiting member is disposed on the cavity wall of the cavity facing the crossbeam connecting part.

7. The combined submersible barge according to claim 1, characterized in that, In the assembly, the two crossbeams are provided with a second connector and a third connector on opposite sides, and the second connector and the third connector are detachably connected.

8. The combined submersible barge according to claim 1, characterized in that, The combined sinking barge also includes a sinking tube lifting mechanism, which is mounted on the two crossbeams and is used to connect the sinking tube located below the crossbeams and in the space between the two crossbeams when the crossbeams are connected to the floats to form the hull, and to control the sinking of the sinking tube.

9. The assembly method of the combined submersible barge according to any one of claims 1-8, characterized in that, Includes the following steps: Transportation: Connect the two crossbeams to form a combined body, and transport the two floats and the combined body to the area to be constructed; Combined body support: control the two floats to sink, move the two floats to the lower sides of the combined body respectively, and make the two floats parallel; control the two floats to float up, so as to support the combined body through the two floats, and when supporting, the combined body is located between the first longitudinal ends of the two floats; Assemble the hull by deforming the combined structure: The traction ropes of the two beam moving mechanisms are respectively passed around the traction wheels located at the second longitudinal ends of the two floats and connected to the second beam; the connection between the first beam and the second beam is disconnected, and the traction winches in the two beam moving mechanisms simultaneously wind up the traction ropes to pull the second beam towards the second longitudinal end of the float, until the second beam moves to the second longitudinal end of the float; the first beam and the second beam are then connected to the two floats respectively, completing the assembly.

10. The assembly method of the combined submersible barge according to claim 9, characterized in that, The beam moving mechanism further includes a beam moving support for supporting the lateral end of the second beam. The beam moving support is slidably connected to the float and moves longitudinally relative to the float. The float includes beam connecting portions located at both longitudinal ends and a support portion connected between the two beam connecting portions. The support portion is provided with a track extending longitudinally, and the beam moving support is slidably connected to the track. The two ends of the beam are respectively provided with overlapping portions. In the assembly support step, when the float supports the assembly, the overlapping portions at both ends of the first crossbeam overlap with the crossbeam connecting portions at the longitudinal first ends of the two floats, and the overlapping portions at both ends of the second crossbeam are supported on the crossbeam moving supports of the two floats, respectively. In the assembly deformation and hull assembly step, when the traction winch winds up the traction rope, the second crossbeam moves to a position close to the longitudinal second end of the float by moving the crossbeam moving support along the track set on the float. The traction winch continues to wind up the traction rope so that the overlapping portion of the second crossbeam disengages from the crossbeam moving support and moves to the crossbeam connecting portion at the longitudinal second end of the float.

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