Construction method for underwater turning of a dock gate

Abstract

The present application relates to the field of dock gate preparation, in particular to a construction method for underwater turning of a dock gate, comprising a dock gate structure at a storage point, wherein one side of the dock gate structure is provided with a connecting part, and the connecting part comprises a first connecting part and a second connecting part; the construction method is as follows: S1, floating the dock gate structure from the storage point to a destination; S2, subsequently erecting a hoisting device, wherein the hoisting device is connected with the first connecting part and the second connecting part respectively; S3, hoisting the second connecting part to make the dock gate structure overturn, and the hoisting device synchronously tightens the first connecting part and the second connecting part; and S4, completing underwater turning of the dock gate structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dock gate manufacturing, in particular to a construction method for underwater turning of a dock gate. BACKGROUND

[0002] In the application of docks and dry docks, the dock gate is a key structural component that ensures the internal water level and dry state. In order to enhance the stability and durability of the dock gate, concrete pouring is usually required inside the dock gate, which helps to increase the weight and impact resistance of the dock gate.

[0003] In the traditional transportation process of the dock gate, the dock gate is usually transported to the destination by floating method in the state of not pouring concrete. Although this method makes the dock gate more portable and easy to operate during transportation, due to the large volume and heavy weight of the dock gate, when the dock gate is transported to the destination, it will usually lie on the water surface. In this state, the internal space of the dock gate is not easy to access, and it is difficult to pour concrete. Due to the large volume and complex internal structure of the dock gate, the concrete pouring is difficult to proceed smoothly, and the operation space of the operator is limited. SUMMARY

[0004] The purpose of the present application is to overcome the problem that the dock gate usually lies on the water surface after floating, which makes it difficult to access the internal space and pour concrete, and increases the difficulty of operation for the construction personnel. The present application provides a construction method for underwater turning of a dock gate.

[0005] In the first aspect, the present application provides a construction method for underwater turning of a dock gate, including a dock gate structure located at a storage point, one side of the dock gate structure is provided with a connecting part, the connecting part includes a first connecting part and a second connecting part, and the construction method is as follows:

[0006] S1, floating the dock gate structure from the storage point to the destination;

[0007] S2, then erecting a hoisting device, the hoisting device is connected with the first connecting part and the second connecting part respectively;

[0008] S3, hoisting the second connecting part to overturn the dock gate structure, and the hoisting device synchronously tightens the first connecting part and the second connecting part;

[0009] S4, completing the underwater turning of the dock gate structure.

[0010] The application provides a construction method for underwater turning of a dock gate, a first connecting part and a second connecting part of the dock gate structure are connected by a hoisting device respectively, and a pulling force is applied, so that the turning process of the dock gate can be effectively controlled. Due to the accuracy and controllability of the pulling force, the dock gate can remain stable during the turning process and will not tilt or lose control unexpectedly. This control force not only improves the safety of the construction, but also ensures the smooth completion of the turning, accurately controls the turning of the dock gate, reduces the time for adjustment and correction operations, makes the entire construction process more efficient, and enables the construction personnel to complete the underwater turning of the dock gate and subsequent construction steps in a shorter time, thereby improving the overall construction efficiency.

[0011] Preferably, the dock gate structure is a sealed box body, a plurality of cabins are arranged in the dock gate structure, and a fender is arranged on one side of the dock gate structure,

[0012] When step S1 is performed, the following steps are specifically included:

[0013] S21, analyze and calculate the transportation water level and detect the obstacle situation of the transportation path;

[0014] S22, after ensuring normal navigation, the dock gate structure located at the storage point is moved to the water surface by using an air bag;

[0015] S23, ensure that the fender is located on the side far away from the water surface, and connect a transportation device on the dock gate structure;

[0016] S24, transport the dock gate structure to the destination by the transportation device.

[0017] The safety of the dock gate during transportation is ensured, and the risk of accidents during transportation is reduced, so that the dock gate can safely arrive at the destination.

[0018] Preferably, the transportation device includes a main tug, the main tug is connected with the dock gate structure, and the main tug is used to drag the dock gate structure to walk, the transportation device further includes an auxiliary tug, the auxiliary tug is arranged in parallel with the dock gate structure, and the auxiliary tug is connected with the dock gate structure, and the auxiliary tug is used to prevent the dock gate structure from shaking when walking.

[0019] The main tug and the auxiliary tug jointly act to balance the load applied to the dock gate structure during transportation, and prevent structural problems caused by uneven stress. The existence of the auxiliary tug helps to disperse the stress generated during transportation, further improving the safety of transportation.

[0020] Preferably, the hoisting device includes a first hoisting wheel, a first connecting cable is arranged on the first hoisting wheel, the hoisting device further includes a second hoisting wheel, a second connecting cable is arranged on the second hoisting wheel,

[0021] In the execution step S2, the following steps are included:

[0022] S31, after the dock gate structure is transported to the destination;

[0023] S32, the first connecting cable is connected with the first connecting part, and the second connecting cable is connected with the second connecting part;

[0024] S33, after the connection is completed, the connection between the dock gate structure and the transportation device is released.

[0025] After the dock gate structure reaches the destination, the lifting device is used for connection, which ensures that the dock gate can reduce shaking and deviation through the crane under the condition of releasing the transportation device, and prepares for the subsequent dock gate turning.

[0026] Preferably, the second lifting wheel and the first lifting wheel can work independently,

[0027] In the execution step S3, the following steps are included:

[0028] S41, the second lifting wheel applies upward tension to the second connecting part;

[0029] S42, after the second connecting part is stressed, the dock gate structure is gradually turned over;

[0030] S43, when the second connecting part moves to the top, the first lifting wheel synchronously tightens the first connecting part;

[0031] S44, the second lifting wheel and the first lifting wheel synchronously apply force to the second connecting part and the first connecting part until the dock gate structure stops moving.

[0032] Through the first lifting wheel and the second lifting wheel respectively pulling the connecting part of the dock gate, the dock gate is subjected to the tension transmitted by the lifting wheel through the connecting cable, so that the dock gate structure starts to turn over.

[0033] Preferably, the lifting device body is a crane ship.

[0034] Preferably, in step S44, after the dock gate structure stops moving, the cabin is started to be partitioned and poured, and after pouring is completed, secondary turning is performed.

[0035] Through the second turning, another side fender is installed for the dock gate structure

[0036] Preferably, the secondary turning method of the dock gate structure is as follows:

[0037] S61, a float is arranged at one end of the dock gate structure in contact with the water surface;

[0038] S62, subsequently, the first hoisting wheel releases the first connecting cable, and the second hoisting wheel is stationary;

[0039] S63, the force acting on the gate structure causes the gate structure to flip over;

[0040] S64, after the gate structure flips over, the second hoisting wheel starts to release the work;

[0041] S65, after the gate structure provided with the first fender on one side is in full contact with the water surface, the second hoisting wheel stops working with the first hoisting wheel.

[0042] By arranging the float on the end of the gate structure in contact with the water surface, the buoyancy helps the balance and stability of the gate structure, and also provides a support point for the flipping of the gate structure, making it easier to flip over. Through the cooperation of the pulling force exerted by the hoisting wheel and the float, the precise flipping and stability of the gate structure are realized. During the flipping process, the control force of the hoisting device and the auxiliary force of the float work together to ensure that the gate structure completes the second flip smoothly and safely.

[0043] Preferably, the float is in abutment with the end of the gate structure away from the first connecting part.

[0044] Preferably, in step S65, when the gate structure flips over, a second fender is arranged on the side of the gate structure away from the water surface.

[0045] Compared with the prior art, the beneficial effects of the present application are:

[0046] 1. The present application provides a construction method for underwater flipping of a gate, which connects the first connecting part and the second connecting part of the gate structure by a hoisting device and exerts a pulling force, which can effectively control the flipping process of the gate. Due to the accuracy and controllability of the pulling force, the gate can remain stable during the flipping process and will not tilt or lose control unexpectedly. This control force not only improves the safety of the construction, but also ensures the smooth completion of the flipping, precisely controls the flipping of the gate, reduces the time for adjustment and correction operations, and makes the entire construction process more efficient. The construction personnel can complete the underwater flipping of the gate and the subsequent construction steps in a shorter time, thereby improving the overall construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 is a schematic diagram of the connection of the gate structure of the present application with the hoisting device;

[0048] Figure 2 is an enlarged schematic diagram of A of the present application; Figure 1

[0049] Figure 3 ​Fig. 2 is a schematic view of the invention's dock gate structure turning over to a vertical state;

[0050] Figure 4 Fig. 3 is a schematic view of the invention's dock gate structure turning over again;

[0051] Figure 5 Fig. 4 is a schematic view of the invention's dock gate structure turning over 180°;

[0052] Figure 6 Fig. 5 is a schematic view of the invention's dock gate structure connecting with a transport device.

[0053] Fig. 1: 1-dock gate structure; 11-first fender; 12-second fender; 2-connection part; 21-first connection part; 22-second connection part; 3-lifting device; 31-first lifting wheel; 311-first connecting cable; 32-second lifting wheel; 321-second connecting cable; 4-transport device; 41-main towing wheel; 42-assistant towing wheel; 5-floating object. DETAILED DESCRIPTION

[0054] The invention will be further described in details below with reference to specific examples. However, it should not be understood that the above-mentioned subject matter of the invention is limited to the following examples only, and any technology realized based on the content of the invention falls within the scope of the invention.

[0055] In the description of the specific embodiments of the invention, the terms indicating the orientation or position relationship of "up", "down", "left", "right", "center", "inner", "outer", etc. are expressed based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / device / apparatus of the invention is usually used. These terms of orientation or position relationship are only for the convenience of describing the invention or simplifying the description in the specific embodiments, and for the convenience of the technical personnel to quickly understand the scheme, and do not indicate or imply that the specific device / part / element must have a specific orientation or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the invention.

[0056] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but that it can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0057] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing between identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0058] Furthermore, in the description of the embodiments of the present invention, "several", "more than", and "a number of" represent at least two. The number can be any number, such as 2, 3, 4, 5, 6, 7, 8, or 9, and can even exceed nine.

[0059] Furthermore, in the description of the technical solution of this invention, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0060] Example 1

[0061] like Figures 1 to 3 As shown, a construction method for underwater overturning of a dock gate is described. This method includes a dock gate structure 1 located at a temporary storage point. Before overturning, operators need to move the entire dock gate structure 1 from the storage point to the destination. The dock gate structure 1 has a connecting part 2 on one side, which includes a first connecting part 21 and a second connecting part 22 arranged side-by-side. When the dock gate structure 1 is launched into the water, the first connecting part 21 is closer to the side of the dock gate structure 1 that is not in contact with the water surface, while the second connecting part 22 is closer to the side of the dock gate structure 1 that is in contact with the water surface. The specific overturning method is as follows:

[0062] S1, the dock gate structure 1 is prepared for transportation from its storage point and is transported to the designated destination;

[0063] S2, after arriving at the destination, the hoisting device 3 is erected and installed. The hoisting device 3 should include a first lifting wheel 31 and a second lifting wheel 32, the first lifting wheel 31 is connected with the first connecting part 21, and the second lifting wheel 32 is connected with the second connecting part 22;

[0064] By connecting the two controllable lifting wheels on the same side of the dock gate structure 1, so that the two lifting wheels exert different pulling forces on the dock gate structure 1, the turning over of the dock gate structure 1 can be ensured.

[0065] S3, the second connecting part 22 is first lifted by the second lifting wheel 32, the hoisting device 3 is started, the second connecting part 22 is gradually lifted, and an upward pulling force is exerted on the dock gate structure 1 through the second connecting part 22, so that the dock gate structure 1 starts to turn over, and at the same time, the first lifting wheel 31 does not exert force on the dock gate structure 1 during the turning over of the dock gate structure 1;

[0066] S4, when the dock gate structure 1 is turned from a horizontal state to a vertical state, the first lifting wheel 31 and the second lifting wheel 32 are simultaneously tensioned, an upward pulling force is exerted on the first connecting part 21 through the first lifting wheel 31, and an upward pulling force is exerted on the second connecting part 22 through the second lifting wheel 32, and the two pulling forces are the same in size, which makes the dock gate structure 1 always keep vertical, facilitating the later operation of the operator to pour the dock gate;

[0067] Further, the turning over force process of the dock gate structure 1 is as follows: when the second lifting wheel 32 rises, an upward pulling force is exerted on the second connecting part 22 through the second lifting wheel 32, since the second connecting part 22 is located in the lower area of the first connecting part 21, the pulling force generated by the second lifting wheel 32 will generate a turning moment on the dock gate structure 1, so that the dock gate structure 1 starts to gradually turn over from the horizontal state;

[0068] Further, in the process of turning over of the dock gate structure 1, the first lifting wheel 31 is always connected with the first connecting part 21, but the first lifting wheel 31 does not exert force on the first connecting part 21, until the dock gate structure 1 is completely turned over to a vertical state, the first lifting wheel 31 starts to exert an upward pulling force on the first connecting part, and the pulling force is consistent with the pulling force exerted by the second lifting wheel 32, achieving force balance and ensuring the stability of the dock gate device.

[0069] In one or more embodiments, the first lifting wheel 31 is provided with a first connecting cable 311, the first lifting wheel 31 is connected with the first connecting part 21 through the first connecting cable 311, and the first lifting wheel 31 can control the lifting and lowering of the first connecting cable 311; the second lifting wheel 32 is provided with a second connecting cable 321, the second lifting wheel 32 is connected with the second connecting part 22 through the second connecting cable 321, and the second lifting wheel 32 can control the lifting and lowering of the second connecting cable 321;

[0070] Further, in the process of turning over the dock gate structure 1, the second connecting cable 321 is always in a tight state, and the first connecting cable 311 is not stressed in the process of turning over the dock gate structure 1, and is in a relaxed state, as shown in Figure 2 and Figure 3 .

[0071] Embodiment 2

[0072] As shown in Figure 1 and Figure 6 , this embodiment 2 is a detailed transportation method of the dock gate structure 1 in step S1 of embodiment 1. In embodiment 1, it is mentioned that the dock gate structure 1 needs to be transported from the storage point to the destination before turning over, and the dock gate structure 1 is provided with a first fender 11 on one side.

[0073] A construction method for underwater turning over of a dock gate, in embodiment 1, it is mentioned that the dock gate structure 1 needs to be transported from the storage point to the destination before turning over, and the specific transportation method is as follows

[0074] S21, before transporting the dock gate structure 1, the operator needs to calculate and analyze the water level of the specified route, and calculate whether the obstacles in the route will affect the transportation of the dock gate structure 1, to ensure that the dock gate structure 1 can be safely and stably transported to the destination;

[0075] S22, after ensuring that the dock gate structure 1 can be normally transported, the air bag water entry method is used to transport the dock gate structure 1 from the storage point to the water;

[0076] S23, ensure that the side of the dock gate structure 1 provided with the first fender 11 is upward when the dock gate structure 1 enters the water, and the operator connects the transportation device 4 on the dock gate structure 1 after the dock gate structure 1 enters the water, and provides power for the transportation of the dock gate structure 1 through the transportation device 4, to ensure that the dock gate structure 1 moves according to the specified route.

[0077] In one or more embodiments, the calculation and analysis of the water level in step S21 mainly includes: measuring the water level during the low tide period in the route, and calculating the height difference between the water surface during the low tide period and the obstacle in the channel; and comparing the height difference with the draft of the dock gate structure 1;

[0078] The water level during the rising tide is measured, and the height difference between the water surface during the rising tide and the waterway obstacle is calculated. The height difference is compared with the draft of the dock gate structure 1 to determine whether the dock gate structure 1 can normally navigate on the route.

[0079] In one or more embodiments, the dock gate structure 1 is erected at the storage point by a pier. In step S22, the main steps of the air bag launching method are as follows:

[0080] S221, setting an anchor at the storage point and installing a winch on the anchor to pull the dock gate structure 1 through the winch;

[0081] S222, placing air bags on the left and right sides and the bottom of the dock gate structure 1, uniformly inflating each air bag, and lifting the dock gate structure 1 through the air bags. When the dock gate structure 1 is not connected to the pier, the operator starts to knock the pier.

[0082] S223, after the pier is cleaned, the dock gate structure is moved to the launching site using the air bags under the traction of the winch, and the tide is waited;

[0083] S224, after moving to the launching site, recheck the angles and air pressures of all air bags, and adjust the arrangement in time to keep the left and right air bags synchronized to ensure smooth launching.

[0084] In one or more embodiments, the transportation device 4 in step S23 includes a main tug 41 connected to the dock gate structure 1, which is used to guide the dock gate structure 1 to navigate according to the planned route and provide power for the transportation of the dock gate structure 1. The transportation device 4 also includes an auxiliary tug 42 arranged in parallel with the dock gate structure 1, which is used to avoid shaking of the dock gate structure 1 during transportation, causing bumps, as shown in Figure 6 .

[0085] Example 3

[0086] As shown in Figures 4 to 5 , this embodiment 3 is a method of turning over the dock gate structure 1 again after pouring in embodiment 1, and the second turning over is used for installing the second fender 12.

[0087] When the dock gate structure 1 is transported, the operator only installs the first fender 11 on the side of the dock gate structure 1 that does not contact the water surface. Such a setting is because if the fender is located on the side of the dock gate structure 1 that contacts the water surface, the water flow will generate resistance to the fender when the dock gate structure 1 moves, causing the fender to peel off from the dock gate structure 1.

[0088] A construction method for underwater turning over of a dock gate, the specific method being as follows:

[0089] S31, when the dock gate structure 1 is turned to the vertical state, the operator places the float 5 at the end of the dock gate structure 1 in contact with the water surface;

[0090] The float 5 supports one end of the dock gate structure 1 by buoyancy, reduces the degree of sinking into the water, and makes the other end more easily overturned. This helps to adjust the center of gravity of the dock gate structure 1;

[0091] S32, the first connecting cable 311 is lowered through the first lifting wheel 31, and the state of the second lifting wheel 32 is kept unchanged. At this time, the length of the first connecting cable 311 increases, and the stress state of the dock gate structure 1 changes;

[0092] Lowering the first connecting cable 311 reduces the tension applied by the first lifting wheel 31, and the dock gate structure 1 adjusts the stress state under the action of the second lifting wheel 32, thereby pushing the dock gate structure 1 to overturn. At this time, the dock gate structure 1 is jointly affected by the buoyancy of the float 5 and the tension of the second lifting wheel 32;

[0093] S33, after the dock gate structure 1 is overturned, the second lifting wheel 32 is started to lower, so that the tension applied to the second connecting part 22 is reduced, and the second connecting cable 321 is not stressed at this time;

[0094] S34, when the first fender 11 of the dock gate structure 1 is completely in contact with the water surface, the operation of the second lifting wheel 32 and the first lifting wheel 31 is stopped;

[0095] After the dock gate structure 1 is completely overturned, the operation of the lifting wheel is stopped, and the dock gate structure 1 is fixed in the new position. At this time, the dock gate structure 1 should be stably in the target position, ready for the subsequent installation of the second fender 12.

[0096] The present application adjusts the center of gravity of the dock gate structure 1 by setting the float 5, which is convenient for the operator to install the second fender 12. By placing the float 5 at the end of the dock gate structure 1 in contact with the water surface, the buoyancy of the float 5 supports one end of the dock gate structure 1, thereby reducing the degree of sinking into the water and making the other end more easily overturned. This adjustment effectively changes the center of gravity of the dock gate, which helps to stabilize and control the turning process. Then, through the cooperation of the first connecting cable 311 and the second connecting cable 321, the second turning of the dock gate structure 1 is completed, so that the operator can directly work on the side where the second fender 12 needs to be installed, improving the safety and efficiency of the construction.

[0097] In one or more embodiments, during the overturning process of the dock gate structure 1, the float 5 automatically separates from the dock gate structure 1 due to its own buoyancy when the dock gate structure 1 is overturned, as shown in Figure 5 .

[0098] The above merely describes preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A construction method for underwater turning of a caisson door, characterized in that, The application relates to a construction method of a dock gate structure (1) located at a storage point, wherein the dock gate structure (1) is provided with a connecting part (2) on one side, the connecting part (2) comprises a first connecting part (21) and a second connecting part (22) arranged side by side, the first connecting part (21) is close to the side of the dock gate structure (1) not in contact with the water surface when the dock gate structure (1) is launched, and the second connecting part (22) is close to the side of the dock gate structure (1) in contact with the water surface. S1, the dock gate structure (1) is floated from the storage point to the destination; S2, then a hoisting device (3) is erected, the hoisting device (3) is connected with the first connecting part (21) and the second connecting part (22) respectively; S3, the second connecting part (22) is hoisted to overturn the dock gate structure (1), and the hoisting device (3) synchronously tightens the first connecting part (21) and the second connecting part (22); S4, the underwater turning of the dock gate structure (1) is completed; The dock gate structure (1) is a sealed box body, a plurality of cabins are arranged in the dock gate structure (1), a first fender (11) is arranged on one side of the dock gate structure (1), When the step S1 is performed, the following steps are specifically included: S21, analyzing and calculating the transportation water level condition and detecting the obstacle condition of the transportation path; S22, after ensuring normal navigation, the dock gate structure (1) located at the storage point is moved to the water surface by using an air bag; S23, the first fender (11) is ensured to be located on the side far away from the water surface, and a transportation device (4) is connected on the dock gate structure (1); S24, the dock gate structure (1) is transported to the destination by the transportation device (4); The hoisting device (3) comprises a first hoisting wheel (31), the first hoisting wheel (31) is provided with a first connecting cable (311), the hoisting device (3) further comprises a second hoisting wheel (32), and the second hoisting wheel (32) is provided with a second connecting cable (321), When the step S2 is performed, the following steps are included: S41, after the dock gate structure (1) is transported to the destination; S42, the first connecting cable (311) is connected with the first connecting part (21), and the second connecting cable (321) is connected with the second connecting part (22); S43, after the connection is completed, the connection between the dock gate structure (1) and the transportation device (4) is released.

2. The construction method of underwater turning of a caisson gate according to claim 1, wherein, The transportation device (4) comprises a main towing wheel (41), the main towing wheel (41) is connected with the dock gate structure (1) and is used for towing the dock gate structure (1) to walk, and the transportation device (4) further comprises an auxiliary towing wheel (42), the auxiliary towing wheel (42) is arranged in parallel with the dock gate structure (1) and is connected with the dock gate structure (1), and the auxiliary towing wheel (42) is used for preventing the dock gate structure (1) from shaking when walking.

3. The method of claim 1, wherein, The hoisting device (3) is a hoisting ship.

4. The method of claim 1, wherein, The second hoisting wheel (32) and the first hoisting wheel (31) can independently work, When the step S3 is performed, the following steps are included: S61, the second lifting wheel (32) exerts upward pulling force on the second connecting part (22); S62, after the second connecting part (22) is stressed, the gate structure (1) is gradually turned over; S63, when the second connecting part (22) moves to the top, the first lifting wheel (31) synchronously tightens the first connecting part (21); S64, the second lifting wheel (32) and the first lifting wheel (31) synchronously stress the second connecting part (22) and the first connecting part (21), until the gate structure (1) stops moving.

5. The method of claim 4, wherein, In step S44, after the gate structure (1) stops moving, the cabin is divided for pouring, and after pouring is completed, secondary turning over is performed.

6. The construction method of underwater turning of a caisson gate according to claim 5, wherein, The secondary turning over method of the gate structure (1) is as follows: S81, a floating object (5) is arranged at the end of the gate structure (1) in contact with the water surface; S82, subsequently, the first lifting wheel (31) lowers the first connecting cable (311), and the second lifting wheel (32) is stationary; S83, the gate structure (1) is stressed to turn over; S84, after the gate structure (1) is turned over, the second lifting wheel (32) starts to lower; S85, after the side of the gate structure (1) provided with the first fender (11) is completely in contact with the water surface, the second lifting wheel (32) and the first lifting wheel (31) stop working.

7. The method of claim 6, wherein, In step S81, the floating object (5) is in abutment with the end of the gate structure (1) away from the first connecting part (21).

8. The construction method of claim 7, wherein, In step S85, when the gate structure (1) is turned over, a second fender (12) is arranged on the side of the gate structure (1) away from the water surface.

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