Integrated barge for gravel bed leveling and immersed tube sinking and mounting, and immersed tube tunnel construction method

Abstract

The present application belongs to the technical field of immersed tube tunnel construction. Disclosed are an integrated barge for gravel bed leveling and immersed tube sinking and mounting, and an immersed tube tunnel construction method. The integrated barge comprises a hull, a leveling device and an immersed-tube hoisting and lowering device, wherein the hull comprises two floating bodies and two cross beams; a space located below the cross beams and between the two floating bodies is configured to contain immersed tubes; a hollowed-out area enclosed by the two floating bodies and the two cross beams forms a moon pool; the leveling device comprises a traveling mechanism, a traveling trolley and a leveling actuation mechanism; the traveling trolley is flipped in a vertical plane relative to the traveling mechanism, such that the leveling actuation mechanism is switched between an operating state and a non-operating state; and the immersed-tube hoisting and lowering device is configured to be connected to the immersed tubes, which are located in the space below the cross beams, and to control the immersed tubes to be sunk and mounted. The integrated barge integrates the functions of gravel bed leveling and immersed tube sinking and mounting, and can thus effectively reduce the ship configuration on an immersed tube tunnel construction site, thereby improving the construction efficiency and reducing the construction cost.

Description

Integrated barge for gravel bed leveling and immersed tube sinking and installation and immersed tube tunnel construction method

[0001] This application claims that on June 29, 2023, the application number is 202310782179.X, and the application name is “A barge for leveling the gravel bed and sinking the immersed tube and installing the immersed tube tunnel and construction method”; the application number is 202310782667.0, and the application name is “A method for assembling a combined immersed tube sinking barge”; the application number is 202310780464.8, and the application name is “A method for turning over a turning leveling device”; the application number is 202310801680.6, and the application name is “A stone-dumping leveling ship and a gravel bed leveling device”. The present application claims priority from Chinese patent applications No. 202310782189.3, entitled “Combined submerged tube barge and assembly method thereof”; No. 202310782705.2, entitled “Turning-over leveling device, leveling vessel and leveling construction method thereof”; No. 202321686974.0, entitled “Combined immersed tube submerged barge”; and No. 202321690930.5, entitled “Turning-over leveling device and leveling vessel comprising the same”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application belongs to the technical field of immersed tube tunnel construction, and in particular relates to a barge for gravel base bed leveling and immersed tube sinking and installation, and an immersed tube tunnel construction method. Background Art

[0003] As a large-scale underwater tunnel project, immersed tube tunnels have the characteristics of a wide range of tunnel cross-sectional shapes, low foundation requirements, shallow burial depth that can effectively shorten the route length, and parallel construction of pipe sections. They are particularly suitable for engineering sites such as soft foundations, riverbeds or seabeds where foundation trench excavation is easy to carry out using water dredging facilities, and are widely used in cross-sea, cross-river and cross-river projects.

[0004] Gravel base bed leveling and immersed tube installation are two important processes in immersed tube tunnel construction, which directly affect the construction quality and safety of immersed tube sections. Currently, the gravel bed leveling operation for immersed tubes requires the use of a dedicated platform-type leveling vessel (see patent CN103924597A) or a floating leveling vessel (see patent CN109898514A), while the immersed tube installation operation requires a separate sinking barge or a self-propelled floating installation vessel (see patent CN106516021A). Both construction processes require a large amount of construction equipment and can only be carried out at sea or in first- and second-class waterways with high navigability. In limited construction waters, such as fourth-class waterways (navigable up to 500 tons, with a water depth of 2.5 to 3.2 meters and a bottom width of 40 to 45 meters), the use of these construction vessels for both gravel bed leveling and immersed tube installation is insufficiently navigable and cannot be towed to the site. Furthermore, in limited construction waters, cable arrangements and the working surface are significantly disrupted, resulting in high construction risks and low efficiency. In order to reduce the requirements for channel depth and width, a combined immersed tube transport and installation barge has been developed (see patent CN110053720A) for immersed tube sinking and installation. However, this still cannot solve the problems of multiple construction equipment configurations, cable arrangement and interference with the working surface in the two construction processes of gravel base leveling and immersed tube sinking and installation.

[0005] Therefore, how to reduce the number of ships deployed at the immersed tube tunnel construction site to adapt to the limited construction waters is a technical problem that needs to be solved urgently.

[0006] Summary of the Invention

[0007] In response to the above technical problems, the present application provides an integrated barge for gravel base bed leveling and immersed tube sinking and installation, as well as an immersed tube tunnel construction method.

[0008] In a first aspect, the present application provides a barge for gravel bed leveling and immersed tube sinking and installation, comprising:

[0009] The hull comprises:

[0010] The two floating bodies are arranged side by side in the transverse direction, with the length direction of the floating bodies as the longitudinal direction;

[0011] Two cross beams, both cross beams are erected in a transverse direction between the two floating bodies, and the two cross beams are respectively located at the longitudinal ends of the floating bodies;

[0012] The space below the crossbeam and between the two floating bodies is used to accommodate the submerged tube, and the hollow area surrounded by the two floating bodies and the two crossbeams constitutes the moon pool.

[0013] A leveling device comprising:

[0014] A traveling trolley is erected transversely between the two floating bodies and located above the moon pool. The traveling trolley moves longitudinally between the two cross beams relative to the floating bodies.

[0015] A traveling trolley is connected to the traveling trolley, and the traveling trolley moves along the traveling trolley and flips in a vertical plane relative to the traveling trolley;

[0016] A leveling actuator is used to level the base bed. It is installed on the traveling trolley and can be raised and lowered relative to the traveling trolley.

[0017] The leveling actuator is flipped in the vertical plane relative to the traveling carriage by the traveling trolley, so that the leveling actuator is switched between the working state and the non-working state; in the working state, the leveling actuator is set vertically to perform the leveling operation; in the non-working state, the leveling actuator is flipped to the top of the moon pool;

[0018] The immersed tube hanging device is arranged on two cross beams and is used to connect the immersed tubes in the space below the cross beams and control the sinking and installation of the immersed tubes.

[0019] A second aspect of the present application further provides a method for constructing an immersed tube tunnel, which is constructed using the above-mentioned integrated barge for leveling the gravel bed and sinking and installing the immersed tube. The construction method includes the construction of leveling the gravel bed and sinking and installing the immersed tube.

[0020] The gravel bed leveling construction includes: the leveling actuator is turned over by the traveling trolley relative to the traveling carriage to switch to the working state; the traveling carriage moves longitudinally relative to the floating body and the traveling trolley moves along the traveling carriage to adjust the working position of the leveling actuator to level the gravel bed;

[0021] The installation and placement of the immersed tube includes: the leveling actuator is flipped relative to the traveling trolley by the traveling trolley to switch to a non-working state; the immersed tube to be sunk is connected to the space below the beam and between the two floating bodies by the immersed tube hoisting device; the immersed tube is sunk by the immersed tube hoisting device and the position and angle of the immersed tube are adjusted to complete the installation of the immersed tube.

[0022] Compared with the prior art, the advantages and positive effects of this application are:

[0023] 1. The integrated gravel bed leveling and immersed tube sinking and installation barge provided in this application integrates the functions of gravel bed leveling and immersed tube sinking and installation, and can complete both the gravel bed leveling and immersed tube sinking and installation construction processes. This greatly reduces the number of vessels deployed at the immersed tube tunnel construction site and effectively avoids the problems of cable arrangement and interference with the working surface caused by the multiple vessel deployments.

[0024] 2. In the integrated barge for gravel bed leveling and immersed tube sinking and installation provided by the present application, the traveling carriage of the leveling device is provided with a first turning position above the moon pool and a second turning position outside the moon pool. The leveling actuator is turned over in the first turning position and the second turning position to enter the working state, thereby achieving leveling construction of the base bed below the range surrounded by the moon pool and leveling construction of the small range of the base bed outside the range surrounded by the moon pool, respectively, greatly improving the leveling efficiency and leveling range. Moreover, the leveling actuator is turned over in the second turning position to enter the working state, so that leveling construction can be carried out in construction areas that the leveling vessel cannot enter, and has a wide range of applications.

[0025] 3. The barge for gravel bed leveling and immersed tube placement and installation provided in this application adopts an assembled hull structure, which reduces the requirements for water depth, channel width, and clearance height in the construction area. It can be constructed in limited construction waters and can meet the requirements for construction in the fourth-class inland waterway area, and has a wide range of applications.

[0026] 4. The immersed tube tunnel construction method provided in this application is characterized in that both the gravel base bed leveling construction and the immersed tube sinking and installation construction are completed by an integrated gravel base bed leveling and immersed tube sinking and installation barge. By switching the leveling actuator from the working state to the non-working state, the immersed tube sinking and installation construction can be carried out directly after the gravel base bed leveling construction is completed, which has high construction efficiency, short cycle and low construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] FIG1 is a schematic structural diagram of a barge integrated with gravel bed leveling and immersed tube sinking and installation provided by one embodiment of the present application;

[0029] FIG2 is a perspective view of the leveling device in one embodiment of the present application when the leveling actuator is located in the first flip position and in a working state;

[0030] FIG3 is a perspective view of a leveling actuator and a traveling carriage in one embodiment of the present application;

[0031] FIG4 is a side view of the leveling device in one embodiment of the present application when the leveling actuator is located in the first flip position and in a working state;

[0032] FIG5 is a partial enlarged view of point B in FIG4 ;

[0033] FIG6 is a side view of the leveling device in one embodiment of the present application when the leveling actuator is in the first flip position and in a non-working state;

[0034] FIG7 is a partial enlarged view of point C in FIG6;

[0035] FIG8 is a partial enlarged view of point A in FIG2;

[0036] FIG9 is a perspective view of the leveling device in one embodiment of the present application when the leveling actuator is located in the second flip position and in a working state;

[0037] FIG10 is a partial enlarged view of point D in FIG9 ;

[0038] FIG11 is a side view of the leveling device in one embodiment of the present application when the leveling actuator is in the second flip position and in working state;

[0039] FIG12 is a side view of the leveling device in one embodiment of the present application when the leveling actuator is in the second flip position and in a non-working state;

[0040] FIG13 is a perspective view of a hull according to an embodiment of the present application;

[0041] FIG14 is a partial enlarged view of point F in FIG13;

[0042] FIG15 is a top view of a hull according to an embodiment of the present application;

[0043] FIG16 is a side view of a hull according to an embodiment of the present application;

[0044] FIG17 is a partial enlarged view of point E in FIG15 ;

[0045] FIG18 is a top view of the assembly according to one embodiment of the present application;

[0046] FIG19 is a front view of an assembly according to an embodiment of the present application;

[0047] FIG20 is a top view of the assembly supported at one longitudinal end of the floating body in one embodiment of the present application;

[0048] FIG21 is a front view of an embodiment of the present application in which the assembly is supported at one longitudinal end of the floating body;

[0049] FIG22 is a top view of a crossbeam moving toward the other longitudinal end of the floating body in one embodiment of the present application;

[0050] FIG23 is a front view of a crossbeam moving toward the other longitudinal end of the floating body in one embodiment of the present application;

[0051] FIG24 is a top view of an assembled integrated barge according to one embodiment of the present application;

[0052] FIG25 is a front view of an assembled integrated barge according to one embodiment of the present application;

[0053] FIG26 is a flow chart of an immersed tube tunnel construction method provided by one embodiment of the present application;

[0054] FIG27 is a flowchart of a flipping method provided in one embodiment of the present application.

[0055] In the figure: 1. Leveling device; 2. Hull; 201. Space; 202. Moon pool; 3. Immersed tube hoisting device; 4. Mooring device; 5. First connecting member; 6. Second connecting member; 7. Adjusting device; 8. Immersed tube; 11. Traveling trolley; 1101. First turning position; 1102. Second turning position; 12. Traveling trolley; 13. Leveling actuator; 14. Driving mechanism; 111. Track beam; 1111. First track; 112. Trolley track wheel; 113. Limiting assembly; 1131. Limiting rod; 114. Cover plate; 115. Lifting member; 121. Trolley track wheel; 1211. First trolley track wheel; 1212. Second trolley track wheel; 1212; 131. Slide tube; 132. Leveling head; 133. Lifting assembly; 1331. Second winch; 1332. Lifting rope; 141. First hoist; 142. First traction rope; 143. Reaction frame; 1431. Frame; 1432. Reaction frame track wheel; 144. First traction wheel; 20. Assembly; 21. Floating body; 2101. First end of the floating body; 2102. Second end of the floating body; 211. Crossbeam connecting portion; 212. Support portion; 213. Second track; 214. Third track; 215. Crossbeam moving support; 22. Crossbeam; 22a. First crossbeam; 22b. Second crossbeam; 221. Overlapping portion; 222. Stopper; 223. Cavity; 23. Crossbeam moving mechanism; 231. Second traction wheel; 232. Crossbeam moving winch; 233. Second traction rope; 31. Lowering winch; 32. Installation winch; 41. Mooring winch; 42. Mooring line; 71. Adjust the winch; 72. Adjust the cable; a. Notch. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0057] In the description of this application, it should be understood that the terms "horizontal", "longitudinal", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 this application.

[0058] The terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," or "third" may explicitly or implicitly include one or more of such features.

[0059] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0060] In the description of this application, terms such as "winch", "lifting part", "sinking winch", "installation winch", "mooring winch" and other equipment are all existing equipment. Their specific structural composition and working mode can be referred to the existing technology and will not be described in detail in this application.

[0061] As shown in Figures 1 to 7 , in an illustrative embodiment of the integrated gravel bed leveling and immersed tube sinking and installation barge of the present application, the integrated gravel bed leveling and immersed tube sinking and installation barge includes a hull 2 ​​, a leveling device 1 and a immersed tube hoisting device 3 . The hull 2 ​​includes two buoys 21 and two cross beams 22. The length direction of the buoys 21 is the longitudinal direction. The two buoys 21 are arranged side by side in the transverse direction. The two cross beams 22 are both erected transversely between the two buoys 21. The two cross beams 22 are respectively located at the longitudinal ends of the buoys 21. Among them, the space 201 below the cross beam 22 and between the two buoys 21 is used to accommodate the submerged tube. The hollow area surrounded by the two buoys 21 and the two cross beams 22 constitutes the moon pool 202. The leveling device 1 includes a walking trolley 11, a walking trolley 12 and a leveling actuator 13. The walking trolley 11 is erected transversely between the two buoys 21 and located above the moon pool 202. The walking trolley 11 moves longitudinally between the two cross beams 22 relative to the buoys 21. The walking trolley 12 is connected to the walking trolley and the leveling actuator 13. Car 11, the traveling trolley 12 moves along the traveling trolley 11 and flips in the vertical plane relative to the traveling trolley 11, the leveling actuator 13 is used to level the base bed, is installed on the traveling trolley 12 and can be raised and lowered relative to the traveling trolley 12; wherein, the leveling actuator 13 flips in the vertical plane relative to the traveling trolley 11 through the traveling trolley 12, so that the leveling actuator 13 can be switched between a working state and a non-working state. When in the working state, the leveling actuator 13 is vertically arranged to perform the leveling operation. When in the non-working state, the leveling actuator 13 flips to the top of the moon pool 202, for example, it can be placed horizontally; the immersed tube hanging device 3 is arranged on two cross beams 22, for connecting the immersed tubes in the space 201 below the cross beams 22, and controlling the sinking and installation of the immersed tubes.

[0062] The above-mentioned integrated gravel bed leveling and immersed tube sinking and installation barge can be used to perform gravel bed leveling operations by flipping the leveling actuator 13 to a vertical working position. By flipping the leveling actuator 13 to a non-working position above the moonpool 202 of the hull 2, the space 201 below the crossbeam 22 of the hull 2 ​​and between the two buoys 21 can be used to accommodate the immersed tubes. The immersed tube sinking and installation construction can then be carried out using the immersed tube hoisting device 3 carried by the hull 2. This barge integrates the functions of gravel bed leveling and immersed tube sinking and installation, and can complete both gravel bed leveling and immersed tube sinking and installation construction processes. This greatly reduces the number of ships required at the immersed tube tunnel construction site and effectively avoids the problems of cable arrangement and work surface interference caused by multiple ship configurations. Furthermore, the above-mentioned integrated gravel bed leveling and immersed tube sinking and installation barge integrates the functions of gravel bed leveling and immersed tube sinking and installation. After completing the gravel bed leveling construction, immersed tube sinking and installation can be carried out directly. This simplifies ship scheduling, significantly improves construction efficiency, and reduces construction costs. In addition, the above-mentioned integrated barge for gravel base bed leveling and immersed tube sinking installation has a lower overall height when the leveling actuator 13 is flipped to the non-working state above the hull 2 ​​moon pool 202, which reduces the requirements for the water depth and clearance height of the construction area, and can be used for construction in limited construction waters, with a wide range of applications.

[0063] As shown in Figures 2, 4, and 6, in this embodiment, the traveling trolley 11 is provided with a first flipping position 1101 in the portion directly above the moonpool 202. The leveling actuator 13 is flipped relative to the traveling trolley 11 at the first flipping position 1101 by the traveling trolley 12. When the leveling actuator 13 is switched to the operating state at the first flipping position 1101, the leveling actuator 13 passes through the moonpool 202 to perform leveling operations on the bed within the range surrounded by the moonpool 202. By restricting the traveling trolley 12 from flipping at the first flipping position 1101, the leveling actuator 13 is ensured to pass through the moonpool 202 after flipping, thereby facilitating leveling operations on the bed within the range surrounded by the moonpool 202. It should be noted that the first flipping position 1101 is preferably located in the middle of the traveling trolley 11 to prevent the floating body 21 of the hull 2 ​​from interfering with the flipping of the leveling actuator 13.

[0064] In order to facilitate the leveling operation on the portion outside the encirclement of the moon pool 202, as shown in Figures 8, 9, 11 and 12, one end of the walking trolley 11 extends outside the moon pool 202, and the portion of the walking trolley 11 extending outside the moon pool 202 is provided with a second flipping position 1102, and the leveling actuator 13 is flipped relative to the walking trolley 11 at the second flipping position 1102 through the walking trolley 12; when the leveling actuator 13 is switched to the working state at the second flipping position 1102, the leveling actuator 13 is located outside the moon pool 202 to perform leveling operations on the base bed outside the encirclement of the moon pool 202. By setting a second flipping position 1102 outside the moon pool 202, the leveling actuator 13 is flipped outside the moon pool 202 to enter the working state, which is coordinated with the leveling actuator 13 flipping into the working state at the first flipping position 1101 above the moon pool 202. It can not only level the base bed below the encirclement of the moon pool 202, but also level the small base bed outside the encirclement of the moon pool 202, which greatly improves the leveling efficiency and leveling range. Moreover, by flipping the leveling actuator 13 into the working state at the second flipping position 1102, it can perform leveling construction in the construction area where the leveling ship cannot enter (such as the gravel base bed in the prefabricated dock), and has a wide range of applications.

[0065] The specific flipping method of the traveling trolley 12 relative to the traveling trolley 11 is described below:

[0066] As shown in Figures 2 to 7, the walking trolley 11 includes two track beams 111 arranged opposite to each other, and the opposite sides of the two track beams 111 are each provided with a first track 1111 extending in the transverse direction; both sides of the walking trolley 12 are respectively provided with a trolley track wheel 121 rollingly connected to the two first tracks 1111, and there are two trolley track wheels 121 rollingly connected to each first track 1111, namely a first trolley track wheel 1211 and a second trolley track wheel 1212; each track beam 111 is detachably connected to a first flip position 1101. The first trolley track wheel 1211 is limited by the limiting component 113 in the first flipping position 1101. Each track beam 111 is also provided with a gap a corresponding to the first flipping position 1101 for the second trolley track wheel 1212 to flip out of the first track 1111. The gap a is located above the first track 1111 and is connected to the first track 1111. When the traveling trolley 12 flips, the wheel axle of the first trolley track wheel 1211 limited by the limiting component 113 is used as the axis, and the unrestricted second trolley track wheel 1212 passes through the gap a when the traveling trolley 12 flips. In this embodiment, by cooperating with the first rails 1111 of the two rail beams 111 of the walking trolley 11 by the trolley track wheels 121 provided on both sides of the walking trolley 12, the walking trolley 12 can be moved along the walking trolley 11 on the one hand, and the walking trolley 12 can be flipped relative to the walking trolley 11 with the wheel axle of one of the trolley track wheels 121 as the axis on the other hand; at the same time, by limiting the position of the first trolley track wheel 1211 through the provided limit assembly 113, the walking trolley 12 can be limited to the flipping position, and the second trolley track wheel 1212 can flip out of the first rail 1111 through the provided notch a when the walking trolley 12 flips, thereby achieving the flipping of the walking trolley 12 under the premise of ensuring the stability of the movement of the walking trolley 12 along the walking trolley 11 by utilizing the movement of the two trolley track wheels 121 along the first rail 1111, and the flipping structure is simple. Similarly, as shown in FIG8 , a limit assembly 113 and a notch a are also provided at the second flipping position 1102 to achieve the same flipping method. It should be noted that the walking trolley 12 can drive the trolley track wheel 121 to rotate through its own power equipment, so that the walking trolley 12 drives the leveling actuator 13 to move along the walking trolley 11; when the walking trolley 12 is not equipped with a power device or the power is insufficient, the walking trolley 12 and the leveling actuator 13 can also be pulled along the walking trolley 11 by another power equipment.It can be understood that the limit assembly 113 is set to be detachable. During the movement of the trolley track wheel 121 along the first track 1111, the limit assembly 113 can be removed to avoid obstruction to the movement of the trolley track wheel 121. When the first trolley track wheel 1211 moves to the required limit position, the limit assembly 113 is installed on the track beam 111 to limit the trolley track wheel 1211; when it is necessary to release the limiting effect on the first trolley track wheel 1211, the limit assembly 113 can be removed.

[0067] Specifically, as shown in FIG5 , in this embodiment, the limiting assembly 113 specifically includes a pair of limiting rods 1131. When limiting the position of the trolley track wheel 121, the pair of limiting rods 1131 are respectively located on both sides of the trolley track wheel 121 and respectively abut against both sides of the trolley track wheel 121. By using the pair of limiting rods 1131 as the limiting assembly 113, the trolley 12 can be limited to the first flip position 1101 or the second flip position 1102 by limiting the trolley track wheel 121 between the two limiting rods 1131. This has a simple structure and is easy to operate.

[0068] Furthermore, as shown in FIG5 , a cover plate 114 is provided at the gap a for opening or covering the gap a. The cover plate 114 is detachably connected to the gap a. The cover plate 114 allows the gap a to be opened when the trolley 12 needs to be turned over. While the trolley 12 moves along the traveling carriage 11, the cover plate 114 covers the gap a, thereby keeping the top of the first track 1111 closed and preventing debris from falling into the first track 1111 and affecting the movement of the trolley 12.

[0069] It should also be noted that, in order to facilitate the flipping of the leveling actuator 13 relative to the traveling trolley 11, as shown in Figures 2 and 9, in this embodiment, the traveling trolley 11 is provided with a drive mechanism 14 for driving the flipping of the leveling actuator 13. The drive mechanism 14 includes a first hoist 141 disposed on the traveling trolley 11 and a first traction rope 142 connected between the first hoist 141 and the top of the leveling actuator 13. The first hoist 141 drives the leveling actuator 13 and the traveling trolley 12 to flip in a vertical plane relative to the traveling trolley 11 about the axle of the trolley track wheel 121 by retracting and extending the first traction rope 142, thereby switching the leveling actuator 13 between an operating state and a non-operating state. The drive mechanism 14 using the first hoist 141 and the first traction rope 142 is simple in structure, facilitates the flipping control of the leveling actuator 13, and does not require a large flipping force. It should be noted that, in this embodiment, as shown in FIG2 , the first hoist 141 is provided at one end of the traveling trolley 11 away from the second flipping position 1102. It should also be noted that when the leveling actuator 13 flips, the leveling actuator 13 needs to flip downward from the side away from the first hoist 141. Therefore, before driving the leveling actuator 13 to flip, it is necessary to ensure that the weight of the portion of the leveling actuator 13 located below the traveling trolley 12 in the working state (that is, the portion of the leveling actuator 13 located on the side of the traveling trolley 12 away from the first hoist 141 in the non-working state) is greater than the weight of the portion of the leveling actuator 13 located above the traveling trolley 12 (that is, the portion of the leveling actuator 13 located on the side of the traveling trolley 12 close to the first hoist 141 in the non-working state), thereby preventing the leveling actuator 13 from flipping from the side close to the first hoist 141.

[0070] Specifically, as shown in FIG3 , the leveling actuator 13 includes a slide 131, a leveling head 132, and a lifting assembly 133. The slide 131 passes through the trolley 12 and can be raised and lowered relative to the trolley 12. The leveling head 132 is connected to the bottom of the slide 131. The lifting assembly 133 includes a second hoist 1331 fixedly mounted on the trolley 12 and a suspension rope 1332 connected between the slide 131 and the second hoist 1331. Because the leveling head 132 is mounted at the bottom of the slide 131, the suspension rope 1332 can be retracted and extended by the second hoist 1331 to position the trolley 12 in the middle of the slide 131, thereby ensuring that the weight of the leveling actuator 13 below the trolley 12 is greater than the weight of the leveling actuator 13 above the trolley 12 during operation.

[0071] Furthermore, as shown in Figures 2 and 9, the driving mechanism 14 also includes a reaction frame 143 connected to the traveling trolley 11. The reaction frame 143 moves along the traveling trolley 11, and the first traction rope 142 passes around the reaction frame 143 from below. When the leveling actuator 13 is flipped in the first flipping position 1101, the reaction frame 143 is restricted to a position close to the first hoist 141. When the leveling actuator 13 is flipped in the second flipping position 1102, the reaction frame 143 is restricted to the first flipping position 1101. By applying a reaction force to the first traction rope 142 by the provided reaction frame 143, the force required by the first hoist 141 to pull the leveling actuator 13 to flip can be reduced. It should be noted that when the leveling actuator 13 is flipped in the second flip position 1102, the reaction frame 143 is restricted to the first flip position 1101, which enables the first traction rope 142 to form a more suitable angle between the parts on both sides of the reaction frame 143, thereby achieving a more labor-saving state. It should also be noted that when the leveling actuator 13 and the traveling trolley 12 are moved to the second flip position 1102, the reaction frame 143 is connected to the top of the leveling actuator 13 using a locking piece (such as a locking wire rope), which enables the reaction frame 143 to follow the traveling trolley 12 and the leveling actuator 13 to move to the first flip position 1101, without the need to set up a separate drive structure to drive the reaction frame 143 to move.

[0072] Specifically, as shown in FIG10 , in this embodiment, the reaction frame 143 specifically includes reaction frame track wheels 1432 that are respectively connected to the two first tracks 1111 in a rolling manner, and a frame body 1431 connected between the two reaction frame track wheels 1432. The first traction rope 142 passes around the frame body 1431. When the leveling actuator 13 is turned over in the first turning position 1101, the reaction frame 143 is connected to the first winch 141 via a locking member. When the leveling actuator 13 is turned over in the second turning position 1102, the reaction frame track wheels 1432 of the reaction frame 143 are restricted to the first turning position 1101 by the limiting assembly 113. The reaction frame 143 with the above structure can be limited by the limiting assembly 113 at the first turning position 1101 without the need for additional limiting structures.

[0073] As shown in Figures 2 and 8, the driving mechanism 14 is also used to drive the leveling actuator 13 to move from the first flip position 1101 to the second flip position 1102. The driving mechanism 14 also includes a first traction wheel 144 arranged at the lateral end of the walking trolley 11 near the second flip position 1102. When the driving mechanism 14 is used to drive the leveling actuator 13 to move, the end of the first traction rope 142 away from the first winch 141 passes around the first traction wheel 144 and is connected to the side of the walking trolley 12 away from the first winch 141. The first winch 141 drives the leveling actuator 13 and the walking trolley 12 to move from the first flip position 1101 to the second flip position 1102 along the walking trolley 11 by winding up the first traction rope 142.

[0074] To further expand the applicability of the above-mentioned integrated gravel bed leveling and immersed tube sinking and installation barge, as shown in Figures 13-25 , in this embodiment, the float 21 and the crossbeam 22 are detachably connected. When the float 21 and the crossbeam 22 are detached, the leveling device 1 and the two crossbeams 22 are detachably connected to form an assembly 20. In the assembly 20, the leveling device 1 is located between the two crossbeams 22, and the leveling actuator 13 in the leveling device 1 is flipped to a non-operating state. By providing a detachable connection between the float 21 and the crossbeam 22 of the hull 2, the float 21 and the assembly 20 consisting of the crossbeam 22 and the leveling device 1 can be transported separately to the construction site for assembly, further reducing the requirements for waterway depth and width, thereby meeting the requirements for construction within the Class IV inland waterway area.

[0075] It should be noted that, as shown in FIG19 , in the assembly 20, a first connecting member 5 is provided on both sides of the traveling trolley 11, and a second connecting member 6 opposite to the first connecting member 5 is provided on the sides of the two cross beams 22 facing the traveling trolley 11. The first connecting member 5 and the second connecting member 6 arranged opposite to each other are detachably connected. The assembly 20 is assembled by the detachable connection of the first connecting member 5 and the second connecting member 6. Specifically, in this embodiment, the first connecting member 5 is a connecting seat, and the second connecting member 6 is a connecting plate, which is inserted into the connecting seat and connected to the connecting seat by bolts. This detachable connection structure in which the connecting seat, the connecting plate and the bolts cooperate is simple in structure and convenient for assembly and disassembly of the assembly.

[0076] In order to facilitate the assembly of the above-mentioned integrated barge for gravel bed leveling and immersed tube sinking and installation, as shown in Figures 13 to 16, 22 and 23, the floating body 21 includes a beam connecting portion 211 located at both ends in the longitudinal direction, and a support portion 212 connected between the two beam connecting portions 211; both ends of the beam 22 are provided with overlapping portions 221 for overlapping with the two beam connecting portions 211 at the corresponding ends of the two floating bodies 21, and the overlapping portions 221 are detachably connected to the beam connecting portions 211; the support portion 212 is provided with a second track 213 and a third track 214 extending in the longitudinal direction, and a beam moving support 215 is slidably connected to the second track 213; the beam moving support 215 of the two floating bodies 21 is used to move between the beam 22 When the overlapping portion 221 is not overlapped with the beam connecting portion 211 of the floating body 21, it supports the beam 22 and moves the supported beam 22 in the longitudinal direction (that is, the beam moving support members 215 of the two floating bodies 21 are used to support the overlapping portions 221 at both ends of one beam 22 in the combination 20 when the overlapping portions 221 at both ends of the other beam 22 are overlapped on the two beam connecting portions 211 at the corresponding ends of the two floating bodies 21, and transport the supported beam 22 after the supported beam 22 is separated from the leveling device 1); as shown in Figure 19, the bottom of the traveling trolley 11 is provided with a trolley track wheel 112 matching the third track 214, and the trolley track wheel 112 is connected to the bottom of the traveling trolley 11 through a lifting member 115.

[0077] The assembly process of the hull 2 ​​is as follows: as shown in Figures 18 and 19, the leveling device 1 in a non-working state is connected between the two beams 22 to form a combination 20, so that the combination 20 and the two floating bodies 21 are moved above the area to be constructed, wherein one beam 22 is the first beam 22a and the other beam 22 is the second beam 22b; as shown in Figures 20 and 21, the two floating bodies 21 are controlled to sink, and the two floating bodies 21 are respectively moved to below the two ends of the combination 20, and the two floating bodies 21 are controlled to float up, so that the overlapping parts 221 at both ends of the first beam 22a in the combination are respectively overlapped on the beam connecting parts 211 at one longitudinal end of the two floating bodies 21, and the overlapping parts 221 at both ends of the second beam 22b are respectively supported on the two The traveling trolley 11 of the leveling device 1 is mounted on the beam moving support 215 of the floating body 21, so that the lap joint 221 and the beam connecting portion 211 are connected; as shown in Figures 22 and 23, the connection between the second beam 22b and the leveling device 1 is disconnected, and the second beam 22b is moved to the longitudinal end of the floating body 21 away from the first beam 22a through the beam moving support 215; as shown in Figures 24 and 25, the lap joints 221 at both ends of the second beam 22b are respectively overlapped on the beam connecting portions 211 of the two floating bodies 21, the lap joints 221 and the beam connecting portion 211 are connected, the connection between the leveling device 1 and the first beam 22a is disconnected, and the assembly of the integrated barge is completed. In this embodiment, the assembly is completed by supporting the combination 20 between the same longitudinal ends of the two floats 21, and then by moving the provided beam moving support 215 along the second track 213, so that one of the beams 22 is moved to the other longitudinal end of the float 21. The assembly process is simple, and the rapid assembly of the integrated barge can be achieved with high assembly efficiency and short cycle. It should be noted that the lifting member 115 is extended to lower the trolley track wheel 112 so that the trolley track wheel 112 falls on the third rail 214, thereby allowing the traveling trolley 11 to be erected between the two floating bodies 21; after the traveling trolley 11 is detached from the first crossbeam 22a and the second crossbeam 22b, the lifting member 115 is retracted to lower the traveling trolley 11, thereby preventing the lifting member 115 from being in a jacking state; when the integrated barge is disassembled after construction is completed, the lifting member 115 is extended to jack up the traveling trolley 11, thereby facilitating adjustment of the height of the traveling trolley 11 so that the first connecting member 5 and the second connecting member 6 are aligned, thereby facilitating bolt connection of the first connecting member 5 and the second connecting member 6, thereby reconnecting the traveling trolley 11 and the two crossbeams 22 to form a combined unit 20. It should also be noted that, as shown in FIG15 , the second rail 213 and the third rail 214 both extend from the crossbeam connecting portion 211 at one longitudinal end of the floating body 21 to the crossbeam connecting portion 211 at the other longitudinal end. In addition, it should be noted that the overlapping portion 221 and the beam connecting portion 211 are detachably connected via a third connecting member (such as a bolt, etc.).

[0078] Furthermore, as shown in Figures 16 and 17, both ends of the crossbeam 22 are provided with stoppers 222 for contacting the side of the floating body 21 to limit the relative position of the crossbeam 22 and the floating body 21. A cavity 223 is formed below the overlap portion 221 to accommodate the crossbeam connecting portion 211 of the floating body 21. The stoppers 222 are disposed on the cavity wall of the cavity 223 facing the crossbeam connecting portion 211. By providing the cavity 223 below the overlap portion 221 of the crossbeam 22, the cavity 223 cooperates with the crossbeam connecting portion 211 of the floating body 21 to achieve rapid positioning between the overlap portion 221 and the crossbeam connecting portion 211. Furthermore, by limiting the position of the crossbeam connecting portion 211 within the cavity 223, collision between the crossbeam connecting portion 211 of the floating body 21 and the sidewall of the cavity 223 can be avoided. To facilitate the installation of the limiter 222, as shown in Figure 17, the upper part of the cavity wall of the cavity 223 facing the beam connection part 211 is a vertical surface, and the lower part is an inclined surface inclined away from the beam connection part 211, and the limiter 222 is set on the inclined surface.

[0079] To facilitate the movement of the crossbeams 22, as shown in FIG13 , the barge further includes a mooring device 4 comprising a plurality of mooring winches 41 disposed on the two crossbeams 22. Each crossbeam 22 is provided with a mooring winch 41 near both ends, and each mooring winch 41 is connected to a mooring cable 42. As shown in FIG22 , when the crossbeam 22 is moved, the mooring cables 42 are twisted by the mooring winches 41, thereby achieving movement of the crossbeam 22.

[0080] The longitudinal ends of the two floats 21 are respectively the first end 2101 and the second end 2102 of the float 21 . The two beams 22 are close to the first end 2101 of the float 21 and the second beam 22b are close to the second end 2102 of the float 21 . In other embodiments, as shown in Figures 13 and 14, the integrated barge also includes a beam moving mechanism 23, which is used to move the second beam 22b to the second end 2102 of the floating body 21 after the combination 20 is supported between the first ends 2101 of the two floating bodies 21 and the combination is detached (that is, after the first beam 22a, the leveling device 1 and the second beam 22b are detached); a group of beam moving mechanisms 23 is respectively provided between the second ends 2102 of the two floating bodies 21 and the second beam 22b, and each group of beam moving mechanisms 23 includes a second traction wheel 231, a beam moving winch 232 and a second traction rope 233, the second traction wheel 231 is arranged at the second end 2102 of the floating body 21, the beam moving winch 232 is arranged on the second beam 22b, one end of the second traction rope 233 is connected to the beam moving winch 232, and the other end of the second traction rope 233 passes around the second traction wheel 231 and is connected to the second beam 22b.

[0081] The above-mentioned integrated barge, by providing a detachable connection between the float 21 and the crossbeam 22 of the hull 2, enables the float 21 and the assembly 20 consisting of the crossbeam 22 and the leveling device 1 to be transported separately to the construction site for assembly. During assembly, the assembly 20 is supported between the same longitudinal ends of the two floats 21, and then one crossbeam 22 in the assembly 20 is moved to the other longitudinal end of the float 21 via the provided crossbeam moving mechanism 23, thereby completing the assembly process. This simplifies the assembly process, improves efficiency, and shortens the assembly cycle. Furthermore, the above-mentioned integrated barge uses the crossbeam moving mechanism 23, which cooperates with the second traction wheel 231, the crossbeam moving winch 232, and the second traction rope 233, to move the crossbeam 22, eliminating the need for laying additional ropes to move the crossbeam 22. Furthermore, the cooperation between the second traction wheel 231 and the second traction rope 233 guides the movement of the crossbeam 22, allowing the crossbeam 22 to be quickly moved into position, resulting in high assembly efficiency.

[0082] In order to control the moving direction of the beam 22 following the beam moving support 215, as shown in Figures 22 and 23, the combined immersed tube sinking barge also includes an adjusting device 7 for regulating the moving direction of the beam 22 following the beam moving support 215. The adjusting device 7 is arranged between the corresponding ends of the two beams 22. There are two adjusting devices 7, and the two adjusting devices 7 are respectively close to the two ends of the two beams 22; the adjusting device 7 includes two adjusting winches 71 respectively arranged at the same end of the two beams 22, and an adjusting cable 72 connected between the two adjusting winches 71. Before moving the second beam 22b, an adjusting cable 72 is connected between the adjusting winches 71 at the corresponding ends of the two beams 22 to assemble two adjusting devices 7 between the two ends of the beam 22; when moving the second beam 22b, the adjusting winch 71 located on the first beam 22a in the adjusting device 7 releases the adjusting cable 72, and the adjusting winch 71 located on the second beam 22b reels the adjusting cable 72. The moving direction of the second beam 22b is controlled by adjusting the speed at which the adjusting winches 71 in the two adjusting devices 7 release or reel in the adjusting cable 72.

[0083] In addition, it should be noted that, as shown in Figure 13, the immersed tube hoisting device 3 includes a plurality of sinking winches 31 and a plurality of installation winches 32 arranged on two cross beams 22. The sinking winches 31 are connected to sinking cables for sinking the immersed tubes, and the installation winches 32 are connected to installation cables for adjusting the position and angle of the immersed tubes.

[0084] Based on the above-mentioned integrated barge for gravel bed leveling and immersed tube sinking and installation, the present application further provides an immersed tube tunnel construction method, which uses the integrated barge for gravel bed leveling and immersed tube sinking and installation of any of the above-mentioned embodiments for construction. As shown in FIG26 , the construction method includes gravel bed leveling construction S1 and immersed tube sinking and installation construction S2.

[0085] S1 gravel bed leveling construction includes: the leveling actuator 13 is turned over by the traveling trolley 12 relative to the traveling carriage 11 to switch to the working state, and the traveling carriage 11 moves longitudinally relative to the floating body 21 and the traveling trolley 12 moves along the traveling carriage 11 to adjust the working position of the leveling actuator 13 to level the gravel bed;

[0086] The S2 immersed tube laying and installation construction includes: the leveling actuator 13 is flipped relative to the traveling trolley 11 through the traveling trolley 12 to switch to a non-working state, the immersed tube to be laid is connected to the space 201 below the beam 22 and between the two floating bodies 21 through the immersed tube lifting device 3, the immersed tube is sunk through the immersed tube lifting device 3 and the position and angle of the immersed tube are adjusted to complete the sinking and installation of the immersed tube.

[0087] In the above-mentioned immersed tube tunnel construction method, both the gravel bed leveling construction and the immersed tube placement and installation construction are completed by integrating the gravel bed leveling and immersed tube placement and installation. By switching the leveling actuator 13 from the working state to the non-working state, the immersed tube placement and installation construction can be directly carried out after the gravel bed leveling construction is completed, which has high construction efficiency, short construction cycle, and low construction cost. It is understood that the focus of the construction method provided in this application is the improvement of the construction method after the gravel bed leveling and immersed tube placement and installation functions are integrated into one. The specific methods of gravel bed leveling and immersed tube placement and installation are beyond the scope of this application and can be implemented by reference to the existing technology.

[0088] Furthermore, as shown in FIG18 to FIG25 and FIG26 , the immersed tube tunnel construction method further includes an S0 integrated barge assembly step, which includes:

[0089] S01 Assembly and transportation steps of the assembly: connect the leveling device 1 in a non-working state between two beams 22 to form an assembly 20, and move the assembly 20 and the two floats 21 above the area to be constructed; wherein, one beam 22 is the first beam 22a, and the other beam 22 is the second beam 22b.

[0090] In this step, it should be noted that the floating body 21 and the assembly 20 can be floated to the top of the area to be constructed by a tugboat, or can be transported to the top of the area to be constructed by a transport ship.

[0091] S02 Floating body positioning step: controlling the two floating bodies 21 to sink, and moving the two floating bodies 21 to below the two ends of the assembly 20 respectively.

[0092] S03 Assembly Support Step: Control the two floating bodies 21 to float upward, so that the overlapping portions 221 at both ends of the first crossbeam 22a in the assembly 20 are respectively overlapped on the crossbeam connecting portions 211 at one longitudinal end of the two floating bodies 21, and the overlapping portions 221 at both ends of the second crossbeam 22b are respectively supported on the crossbeam movable supports 215 of the two floating bodies 21, so that the traveling trolley 11 of the leveling device 1 is set between the two floating bodies 21, connecting the overlapping overlapping portions 221 and the crossbeam connecting portions 211;

[0093] It should be noted that, before controlling the two floating bodies 21 to float upward, the process further includes adjusting the position of the beam movable support 215 (S031) so that the beam movable support 215 is located directly below the overlapped portion 221 of the second beam 22b. When controlling the two floating bodies 21 to float upward in step S03, the floating bodies 21 are first floated until the top of the beam connecting portion 211 at one longitudinal end of the floating body 21 contacts the bottom of the overlapped portion 221 of the first beam 22a in the assembly 20, and the top of the beam movable support 215 of the floating body 21 contacts the bottom of the overlapped portion 221 of the second beam 22b, preliminarily connecting the overlapped portion 221 of the first beam 22a to the beam connecting portions 211 of the two floating bodies 21. The two floating bodies 21 are then controlled to continue floating upward so that the assembly is supported on the two floating bodies 21. When the two floating bodies 21 are controlled to float upward, the beam connecting portion 211 of the floating body 21 enters the cavity of the first beam 22 a , and the position of the beam connecting portion 211 in the cavity is limited by the limiting member 222 .

[0094] S04 Steps for deforming and assembling the integrated barge by combining the body: disconnect the second beam 22b from the leveling device 1, move the second beam 22b to the longitudinal end of the floating body 21 away from the first beam 22a through the beam moving support 215, and make the overlapping parts 221 at both ends of the second beam 22b overlap the beam connecting parts 211 at the same end of the two floating bodies 21 respectively, connect the overlapping parts 221 and the beam connecting parts 211, disconnect the connection between the leveling device 1 and the first beam 22a, and complete the assembly of the integrated barge.

[0095] In this step, it should be noted that the movement of the second crossbeam 22b is achieved by twisting the mooring cable 42 through the mooring winch 41 provided on the second crossbeam 22b. It should also be noted that before moving the second crossbeam 22b, an adjustment cable 72 is connected between the adjustment winches 71 at the corresponding ends of the two crossbeams 22, so that two adjustment devices 7 are assembled between the two ends of the crossbeam 22; when moving the second crossbeam 22b, the adjustment winch 71 located on the first crossbeam 22a of the adjustment device 7 releases the adjustment cable 72, and the adjustment winch 71 located on the second crossbeam 22b reels the adjustment cable 72. The movement direction of the second crossbeam 22b is controlled by adjusting the speed at which the adjustment winches 71 in the two adjustment devices 7 release or reel in the adjustment cable 72.

[0096] In some embodiments, the gravel base bed leveling construction S1 includes a leveling construction step S11 of the base bed within the encirclement of the moon pool 202: the walking trolley 12 drives the leveling actuator 13 in a non-working state to move to the first flipping position 1101, and the leveling actuator 13 is flipped relative to the walking trolley 11 at the first flipping position 1101 by the walking trolley 12 to switch to the working state. The working position of the leveling actuator 13 is adjusted by the longitudinal movement of the walking trolley 11 relative to the hull 2 ​​and the movement of the walking trolley 12 along the walking trolley 11 to perform leveling operations on the base bed within the encirclement of the moon pool 202.

[0097] In some embodiments, the gravel base bed leveling construction S1 also includes a leveling construction step S12 for the base bed outside the encirclement of the moon pool 202: the walking trolley 12 drives the leveling actuator 13 in a non-working state to move to the second flipping position 1102, and the leveling actuator 13 is flipped relative to the walking trolley 11 at the second flipping position 1102 by the walking trolley 12 to switch to the working state. The working position of the leveling actuator 13 is adjusted by the longitudinal movement of the walking trolley 11 relative to the hull 2 ​​to perform leveling operations on the base bed outside the encirclement of the moon pool 202.

[0098] In some embodiments, the immersed tunnel construction method further includes a flipping method S3 of the leveling mechanism 13 , wherein the flipping method S3 includes: a flipping method S31 of flipping the leveling mechanism 13 from a non-working state to a working state, and a flipping method S32 of flipping the leveling mechanism 13 from a working state to a non-working state, wherein:

[0099] The flipping method S31 for flipping from the non-operating state to the operating state includes the following steps: the first hoist 141 releases the first traction rope 142, and under the action of the gravity of the leveling actuator 13, the leveling actuator 13 and the traveling trolley 12 flip in a vertical plane relative to the traveling trolley 11 with the wheel axle of the trolley track wheel 121 as the axis until the leveling actuator 13 is vertical and enters the operating state;

[0100] The flipping method S21 from the working state to the non-working state includes the following steps: the first winch 141 reels the first traction rope 142, and under the tension of the first traction rope 142, the leveling actuator 13 and the walking trolley 12 flip in the vertical plane relative to the walking trolley 11 with the axle of the trolley track wheel 121 as the axis, until the leveling actuator 13 flips to above the moon pool 202 and enters the non-working state.

[0101] In some embodiments, the leveling construction step S11 of the base bed within the range surrounded by the moon pool 202 specifically includes: the walking trolley 12 drives the leveling actuator 13 in the non-working state to move to the first flipping position 1101, and connects the end of the first traction rope 142 away from the first hoist 141 to the top of the leveling actuator 13; the first hoist 141 releases the first traction rope 142, and under the action of the gravity of the leveling actuator 13, the leveling actuator 13 drives the walking trolley 12 to flip in the vertical plane relative to the walking trolley 11 at the first flipping position 1101 until the leveling actuator 13 is leveled. The mechanism 13 is vertical and enters the working state; the working position of the leveling actuator 13 is adjusted by the longitudinal movement of the traveling trolley 11 relative to the hull 2 ​​and the movement of the traveling trolley 12 along the traveling trolley 11 to level the base bed within the range surrounded by the moon pool 202; after the leveling operation, the first winch 141 reels the first traction rope 142, and under the tension of the first traction rope 142, the leveling actuator 13 drives the traveling trolley 12 to flip in the vertical plane relative to the traveling trolley 11 until the leveling actuator 13 flips to above the moon pool 202 and enters the non-working state.

[0102] In some embodiments, the leveling construction step S12 of the base bed outside the range surrounded by the moon pool 202 specifically includes: passing the end of the first traction rope 142 away from the first winch 141 around the first traction wheel 144 and connecting it to the side of the walking trolley 12 away from the first winch 141, the first winch 141 reels the first traction rope 142 to pull the walking trolley 12 to drive the leveling actuator 13 in the non-working state to move along the walking trolley 11 to the second flipping position 1102, and connecting the end of the first traction rope 142 away from the first winch 141 to the top of the leveling actuator 13; the first winch 141 releases the first traction rope 142, and under the gravity of the leveling actuator 13 Under the action of the first winch 141, the first traction rope 142 is wound up, and the leveling actuator 13 drives the trolley 12 to flip in the vertical plane relative to the walking trolley 11 at the second flipping position 1102 until the leveling actuator 13 is vertical and enters the working state. By moving the walking trolley 11 longitudinally relative to the hull 2, the working position of the leveling actuator 13 is adjusted to level the base bed outside the encirclement of the moon pool 202. After the leveling operation, the first winch 141 reels in the first traction rope 142, and under the action of the tension of the first traction rope 142, the leveling actuator 13 drives the trolley 12 to flip in the vertical plane relative to the walking trolley 11 until the leveling actuator 13 flips to above the moon pool 202 and enters the non-working state.

[0103] Through the description of multiple embodiments of the integrated gravel bed leveling and immersed tube sinking and installation barge and immersed tube tunnel construction method of the present application, it can be seen that the embodiments of the integrated gravel bed leveling and immersed tube sinking and installation barge and immersed tube tunnel construction method of the present application have at least one or more of the following advantages:

[0104] 1. The integrated gravel bed leveling and immersed tube sinking and installation barge provided in this application integrates the functions of gravel bed leveling and immersed tube sinking and installation, and can complete both the gravel bed leveling and immersed tube sinking and installation construction processes. This greatly reduces the number of vessels deployed at the immersed tube tunnel construction site and effectively avoids the problems of cable arrangement and interference with the working surface caused by the multiple vessel deployments.

[0105] 2. In the integrated barge for gravel bed leveling and immersed tube sinking provided by the present application, the traveling trolley 11 of the leveling device 1 is provided with a first turning position above the moon pool and a second turning position outside the moon pool. The leveling actuator 13 is turned over in the first turning position and the second turning position to enter the working state, thereby achieving leveling construction of the base bed below the range surrounded by the moon pool and leveling construction of the small range of the base bed outside the range surrounded by the moon pool, respectively, greatly improving the leveling efficiency and leveling range. Moreover, the leveling actuator 13 is turned over in the second turning position to enter the working state, so that leveling construction can be carried out in construction areas that cannot be entered by the leveling vessel, and has a wide range of applications.

[0106] 3. The barge for gravel bed leveling and immersed tube sinking and installation provided by this application has an assembled hull 2, which reduces the requirements for water depth, width, and clearance height in the construction area. It can be constructed in limited construction waters and can meet the requirements for construction in the fourth-class inland waterway area, and has a wide range of applications.

[0107] 4. The immersed tube tunnel construction method provided by the present application is a method in which the gravel base bed leveling construction and the immersed tube sinking and installation construction are both completed by the gravel base bed leveling and immersed tube sinking and installation in one barge. By switching the leveling actuator 13 from the working state to the non-working state, the immersed tube sinking and installation construction can be directly carried out after the gravel base bed leveling construction is completed, which has high construction efficiency, short cycle and low construction cost.

[0108] 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.

[0109] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the same. Although the present application has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solutions of the present application. They should all be included in the scope of the technical solutions for which protection is requested in the present application.

Claims

1. A barge with integrated gravel bed leveling and immersed tube installation, characterized in that: include: The hull comprises: Two floating bodies, with the length direction of the floating body as the longitudinal direction, and the two floating bodies are arranged side by side in the transverse direction; Two cross beams, both of which are transversely erected between the two floating bodies, and are respectively located at two longitudinal ends of the floating bodies; Wherein, the space below the cross beam and between the two floating bodies is used to accommodate the submerged tube, and the hollow area surrounded by the two floating bodies and the two cross beams constitutes a moon pool; A leveling device comprising: A walking trolley is erected between the two floating bodies in the transverse direction and is located above the moon pool. The walking trolley moves longitudinally between the two cross beams relative to the floating bodies. A traveling trolley connected to the traveling trolley, wherein the traveling trolley moves along the traveling trolley and flips in a vertical plane relative to the traveling trolley; A leveling actuator, used for leveling the base bed, which is installed on the traveling trolley and can be raised and lowered relative to the traveling trolley; The leveling actuator is flipped in a vertical plane relative to the walking trolley by the walking trolley, so that the leveling actuator is switched between a working state and a non-working state; in the working state, the leveling actuator is vertically arranged to perform the leveling operation; in the non-working state, the leveling actuator is flipped to above the moon pool; The immersed tube hanging device is arranged on the two cross beams, and is used to connect the immersed tube in the space below the cross beams and control the sinking and installation of the immersed tube.

2. The integrated barge for gravel bed leveling and immersed tube installation according to claim 1 is characterized in that: The walking trolley is provided with a first flipping position at the part directly above the moon pool, and the leveling actuator is flipped relative to the walking trolley at the first flipping position through the walking trolley; when the leveling actuator is switched to the working state at the first flipping position, the leveling actuator passes through the moon pool to perform leveling operations on the base bed within the encirclement of the moon pool.

3. The integrated barge for gravel bed leveling and immersed tube installation according to claim 2 is characterized in that: One end of the walking trolley extends outside the moon pool, and the part of the walking trolley extending outside the moon pool is provided with a second flipping position, and the leveling actuator is flipped relative to the walking trolley at the second flipping position through the walking trolley; when the leveling actuator is converted to the working state at the second flipping position, the leveling actuator is located outside the moon pool to perform leveling operations on the base bed outside the enclosed range of the moon pool.

4. The integrated barge for gravel bed leveling and immersed tube installation according to claim 2 or 3, characterized in that: The walking trolley includes two track beams arranged opposite to each other, and the opposite sides of the two track beams are provided with first tracks extending in the transverse direction; trolley track wheels rollingly connected to the two first tracks are provided on both sides of the walking trolley, and the number of trolley track wheels rollingly connected to each of the first tracks is two, namely, a first trolley track wheel and a second trolley track wheel; each of the track beams corresponding to the first flipping position and / or the second flipping position is detachably connected with a limiting component for limiting the first trolley track wheel to the first flipping position or the second flipping position, and each of the track beams corresponding to the first flipping position and / or the second flipping position is also provided with a notch for the second trolley track wheel to flip out of the first track, and the notch is located above the first track and is connected to the first track; when the walking trolley flips, the wheel axle of the first trolley track wheel limited by the limiting component is used as the axis, and the unrestricted second trolley track wheel passes through the notch when the walking trolley flips.

5. The integrated barge for gravel bed leveling and immersed tube sinking and installation according to claim 4 is characterized in that: It also includes a driving mechanism for driving the leveling actuator to flip, and the driving mechanism includes a first winch arranged on the traveling trolley and a first traction rope connected between the first winch and the top of the leveling actuator; wherein the first winch drives the leveling actuator and the traveling trolley to flip by retracting and releasing the first traction rope, so that the leveling actuator can be switched between a working state and a non-working state.

6. The integrated barge for gravel bed leveling and immersed tube installation according to claim 5 is characterized in that: The driving mechanism also includes a reaction frame connected to the traveling trolley, and the first traction rope passes around the reaction frame from below the reaction frame.

7. The integrated barge for gravel bed leveling and immersed tube installation according to claim 6 is characterized in that: The first winch is arranged at one end of the traveling trolley away from the second flipping position, and the reaction frame can move along the traveling trolley. When the leveling actuator flips in the first flipping position, the reaction frame is restricted to the vicinity of the first winch; when the leveling actuator flips in the second flipping position, the reaction frame is restricted to the first flipping position.

8. The integrated barge for gravel bed leveling and immersed tube installation according to claim 5 is characterized in that: The mechanism driving mechanism is also used to drive the leveling actuator to move from the first flip position to the second flip position. The driving mechanism also includes a first traction wheel arranged at the lateral end of the walking trolley close to the second flip position. When the driving mechanism is used to drive the leveling actuator to move, the end of the first traction rope away from the first winch bypasses the first traction wheel and is connected to the side of the walking trolley away from the first winch. The first winch drives the leveling actuator and the walking trolley to move from the first flip position to the second flip position along the walking trolley by winding up the first traction rope.

9. The integrated barge for gravel bed leveling and immersed tube installation according to claim 1 is characterized in that: The floating body is detachably connected to the cross beam; when the floating body is detached from the cross beam, the leveling device is detachably connected to the two cross beams to form a combination, in which the leveling device is located between the two cross beams, and in the leveling device, the leveling actuator is flipped to a non-working state.

10. The integrated barge for gravel bed leveling and immersed tube installation according to claim 9, characterized in that: The floating body includes beam connecting parts located at both ends in the longitudinal direction, and a supporting part connected between the two beam connecting parts; overlapping parts are provided at both ends of the beam for overlapping with the two beam connecting parts at the corresponding ends of the two floating bodies respectively, and the overlapping parts are detachably connected to the beam connecting parts; the supporting part is provided with a second track and a third track extending in the longitudinal direction, and a beam moving support is slidably connected to the second track; the beam moving support members of the two floating bodies are used to support the beam when the overlapping parts of the beam are not overlapped with the beam connecting parts of the floating body, and to move the supported beam in the longitudinal direction; the bottom of the traveling trolley is provided with a trolley track wheel matching the third track, and the trolley track wheel is connected to the bottom of the traveling trolley through a lifting member.

11. The integrated barge for gravel bed leveling and immersed tube installation according to claim 9 is characterized in that: It also includes a beam moving mechanism, the two longitudinal ends of the two floating bodies are respectively a first end and a second end, the two beams close to the first end of the floating body are the first beam, and the beams close to the second end of the floating body are the second beam, the beam moving mechanism is used to move the second beam to the second end of the floating body after the combination is detached when the combination is supported between the first ends of the two floating bodies; a group of beam moving mechanisms is respectively arranged between the second ends of the two floating bodies and the second beam, each group of beam moving mechanisms includes: a second traction wheel, a beam moving winch and a second traction rope, the second traction wheel is arranged at the second end of the floating body, the beam moving winch is arranged on the second beam, one end of the second traction rope is connected to the beam moving winch, and the other end of the second traction rope passes around the second traction wheel and is connected to the second beam.

12. The integrated barge for gravel bed leveling and immersed tube installation according to claim 1, characterized in that: The immersed tube hoisting device includes a plurality of sinking winches and a plurality of installation winches arranged on the two cross beams, the sinking winches are connected to sinking cables for sinking the immersed tubes, and the installation winches are connected to installation cables for adjusting the positions and angles of the immersed tubes.

13. A method for constructing an immersed tube tunnel, characterized in that: The construction is carried out by using the integrated barge for leveling the gravel bed and sinking and installing the immersed tube as described in any one of claims 1 to 12, and the construction method includes: leveling the gravel bed and sinking and installing the immersed tube; The gravel bed leveling construction includes: the leveling actuator is turned over by the walking trolley relative to the walking trolley to switch to the working state, and the working position of the leveling actuator is adjusted by the walking trolley moving longitudinally relative to the floating body and the walking trolley moving along the walking trolley to level the gravel bed; The submerged tube laying and installation construction includes: the leveling actuator is flipped relative to the traveling trolley by the traveling trolley to be converted to the non-working state, the submerged tube to be laid is connected to the space below the beam and between the two floating bodies by the submerged tube hanging device, the submerged tube is sunk by the submerged tube hanging device and the position and angle of the submerged tube are adjusted to complete the sinking and installation of the submerged tube.

14. The immersed tube tunnel construction method according to claim 13, characterized in that: The walking vehicle is provided with a first turning position at the part directly above the moon pool. The gravel bed leveling construction includes the following steps of leveling the bed within the range surrounded by the moon pool: The walking trolley drives the leveling actuator in the non-working state to move to the first flipping position. The leveling actuator is flipped relative to the walking trolley at the first flipping position by the walking trolley to switch to the working state. The working position of the leveling actuator is adjusted by the longitudinal movement of the walking trolley relative to the hull and the movement of the walking trolley along the walking trolley to perform leveling operations on the base bed within the enclosed range of the moon pool.

15. The immersed tube tunnel construction method according to claim 14, characterized in that: One end of the walking trolley extends outside the moon pool, and the part of the walking trolley extending outside the moon pool is provided with a second turning position. The gravel bed leveling construction also includes the step of leveling the bed outside the encirclement of the moon pool: The walking trolley drives the leveling actuator in the non-working state to move to the second flipping position. The leveling actuator is flipped relative to the walking trolley at the second flipping position by the walking trolley to switch to the working state. The working position of the leveling actuator is adjusted by the longitudinal movement of the walking trolley relative to the hull to perform leveling operations on the base bed outside the enclosed range of the moon pool.

16. The immersed tunnel construction method according to claim 13, characterized in that: In the integrated barge for gravel bed leveling and immersed tube sinking installation, the traveling trolley includes two track beams arranged opposite to each other, and first tracks extending in the transverse direction are provided on opposite sides of the two track beams, and trolley track wheels rollingly connected to the two first tracks are provided on both sides of the traveling trolley; the integrated barge for gravel bed leveling and immersed tube sinking installation also includes a driving mechanism for driving the leveling actuator to flip, and the driving mechanism includes a first winch arranged on the traveling trolley and a first traction rope connected between the first winch and the top of the leveling actuator; The construction method also includes a flipping method of the leveling mechanism, and the flipping method includes: a flipping method of the leveling mechanism from a non-working state to a working state and a flipping method of the leveling mechanism from a working state to a non-working state, wherein middle: The flipping method from the non-working state to the working state comprises the following steps: the first hoist releases the first traction rope, and under the gravity of the leveling actuator, the leveling actuator and the traveling trolley flip in a vertical plane relative to the traveling trolley with the wheel axle of the trolley track wheel as the axis, until the leveling actuator is vertical and enters the working state; The flipping method from a working state to a non-working state comprises the following steps: the first winch reels in the first traction rope, and under the tension of the first traction rope, the leveling actuator and the walking trolley flip in a vertical plane relative to the walking trolley with the axle of the trolley track wheel as the axis, until the leveling actuator flips to above the moon pool and enters the non-working state.

17. The immersed tube tunnel construction method according to claim 13, characterized in that: In the integrated barge for gravel bed leveling and immersed tube sinking and installation, the floating body is detachably connected to the cross beam; when the floating body is detached from the cross beam, the leveling device is detachably connected to the two cross beams to form a combination, in which the leveling device is located between the two cross beams, and in the leveling device, the leveling actuator is flipped to a non-working state; the floating body includes cross beam connecting parts located at both ends in the longitudinal direction, and a supporting part connected between the two cross beam connecting parts; two ends of the cross beam are provided with two cross beams for respectively connecting to the corresponding ends of the two floating bodies The connecting parts overlap each other, and the overlapping part is detachably connected to the beam connecting part; the supporting part is provided with a second track and a third track extending in the longitudinal direction, and a beam moving support is slidably connected to the second track; the beam moving support of the two floating bodies is used to support the beam when the overlapping part of the beam is not overlapped with the beam connecting part of the floating body, and to move the supported beam in the longitudinal direction; the bottom of the traveling trolley is provided with a trolley track wheel matching the third track, and the trolley track wheel is connected to the bottom of the traveling trolley through a lifting member; The immersed tube tunnel construction method further includes an integrated barge assembly step, wherein the integrated barge assembly step includes: The leveling device in a non-working state is connected between the two beams to form the combination, and the combination and the two floating bodies are moved above the area to be constructed; wherein one beam is a first beam and the other beam is a second beam; Controlling the two floating bodies to sink, and moving the two floating bodies to below the two ends of the assembly respectively; Control the two floating bodies to float up, so that the overlapping parts at both ends of the first beam in the combination are overlapped on the beam connecting parts at one longitudinal end of the two floating bodies, and the overlapping parts at both ends of the second beam are supported on the beam moving supports of the two floating bodies, so that the walking trolley of the leveling device is set between the two floating bodies to connect the overlapping overlapping parts and the beam connecting parts; Disconnect the connection between the second beam and the leveling device, move the second beam to the longitudinal end of the floating body away from the first beam through the beam moving support, and make the overlapping parts at both ends of the second beam overlap the beam connecting parts at the two ends of the two floating bodies respectively, connect the overlapping parts and the beam connecting parts, disconnect the connection between the leveling device and the first beam, and complete the assembly of the integrated barge.

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