A method for constructing a pile-holding structure

Abstract

The present application belongs to the technical field of large floating dock pile-holding structure construction, and specifically discloses a pile-holding structure construction method, which effectively solves the problem of high overall manufacturing cost of the current pile-holding structure. The method comprises the following steps: (1) constructing a pile-holding support and a pile-holding gate respectively; the pile-holding support is constructed in a reverse state, reverse state boring is performed, and the ear plate shaft hole of the pile-holding support structure is machined after welding; the pile-holding gate is constructed in a normal state, the ear plate shaft hole of the pile-holding gate is machined after the ear plate is cut and the upper panel and the lower panel of the gate are spliced, and finally the pile-holding gate structure is assembled and welded; (2) rotating and testing the pile-holding support and the pile-holding gate and assembling them into a whole. Through the function analysis of the working characteristics of the pile-holding equipment and the pile-holding structure form, the construction process of the pile-holding support and the pile-holding gate is reasonably arranged, which is beneficial to guarantee the construction quality of the pile-holding structure, reduce the construction cost of the pile-holding structure, and improve the economic benefits of the shipyard.

Description

Technical Field

[0001] This invention belongs to the field of construction technology of large floating dock pile structure, and particularly relates to a construction method of pile structure. Background Technology

[0002] Piling system (such as) Figure 1 A buoy mooring system is a specialized stabilization system used to secure large floating docks to the pier. Typically, one buoy mooring system is installed at each end of a floating dock. A buoy mooring system usually includes a buoy (1), a buoy base (2), and a buoy structure. The buoy is usually a hydraulic structure installed and fixed at the pier; the buoy base is constructed along with the main hull of the floating dock; the buoy structure includes a buoy support (3), a buoy gate (4), and a pivot shaft. The buoy support (3) and the buoy gate (4) are connected by two pivot shafts.

[0003] Normally, the pile support 3 and the pile gate 4 are built and assembled and tested in the shipyard. After being transported to the shipowner's dock in the floating dock, the pile support 3 is installed on the pile base 2 according to the actual spacing of the piles 1 in the bow and stern directions, so as to ensure that the spacing of the pile structure in the bow and stern directions matches the spacing of the piles 1 in the bow and stern directions.

[0004] The pile-holding bracket 3 and the pile-holding gate 4 are connected by a rotating shaft. The inner holes of the pile-holding bracket 3, the pile-holding gate 4, and the rotating shaft need to be machined to ensure manufacturing accuracy. Both the pile-holding bracket 3 and the pile-holding gate 4 are structural components welded from thick plates. They are large in size and require high manufacturing accuracy, making them difficult to manufacture.

[0005] The specific difficulties in constructing the current pile-holding structure are as follows: (1) The two rotating shafts are mechanically assembled with the upper / lower panels of the pile-holding bracket 3 and the pile-holding gate 4, and the precision of the mechanisms affects each other, requiring high overall construction quality and precision control. (2) The pile-holding bracket 3 and the pile-holding gate 4 have high precision requirements, are difficult to weld, have high machining requirements, have many process steps, and have high difficulty in quality control during construction. (3) The machining requirements of the pile-holding bracket 3 and the pile-holding gate 4 are high, and the machining process is very important. If both adopt the method of integral machining after structural welding, the machining cost will be high, affecting the economic benefits of the shipyard. Summary of the Invention

[0006] The purpose of this invention is to provide a method for constructing a pile-supported structure, which effectively solves the problem of high overall manufacturing costs of current pile-supported structures.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] A method for constructing a pile-holding structure, the pile-holding structure including a pile-holding support and a pile-holding gate, includes the following steps: S1, constructing the pile-holding support and the pile-holding gate respectively.

[0009] The pile-holding support is constructed in reverse state, and the reverse state boring is performed. After welding, the ear plate pivot hole of the pile-holding support structure is machined as a whole.

[0010] The normal construction of the sluice gate involves cutting and preparing the ear plates of the sluice gate, then assembling the upper and lower panels of the gate, machining the pivot holes in the ear plates, and finally welding the sluice gate structure.

[0011] S2. Rotate the pile support and pile gate and assemble them into a whole.

[0012] Furthermore, in step S1, the construction process of the pile clamping bracket is as follows: plate cutting and blanking, structural welding, integral machining of the ear plate pivot hole, and painting of the pile clamping bracket.

[0013] Furthermore, the construction process of the pile clamping support specifically includes the following steps: A1. Determine the details of the loose components of the pile clamping support based on the installation space requirements of the post-weld boring equipment.

[0014] A2. According to the cutting and blanking drawing of the pile clamping bracket, complete the cutting and blanking of each part of the pile clamping bracket, and process the transition bevel and the X-shaped bevel of the ear plate of the pile clamping bracket. At the same time, make the powder spraying lines of the center line and the cross center line of the ear plate pivot hole on the upper panel and the lower panel of the bracket. Leave the ear plate of the pile clamping bracket with the machining allowance.

[0015] A3. The upper and lower panels of the bracket are assembled based on the powder spraying line, and the hole spacing is checked. If there is any deviation, it is corrected, and shape-preserving reinforcement is added between the ear plates.

[0016] The upper panel of the support is assembled on the ground jig, and the lower panel of the support is assembled on a matching jig.

[0017] A4. The upper panel of the support is welded to the ground frame. According to the deformation of the panel corners, the panels should be flipped over and welded in time. After the welding of the upper panel of the support is completed, the levelness of the panel is checked. If it exceeds the tolerance, it is corrected.

[0018] A5. The lower panel of the bracket is welded to the mating joint on the matching angle bracket, and the panel is sealed firmly with a board. Depending on the deformation of the panel corners, the panel should be flipped over and welded in time.

[0019] After flipping it over, reattach the corner bracket and secure the panel firmly with the support plate. After the panel joint under the bracket is welded, check the corner angle of the panel. If it exceeds the tolerance, correct it.

[0020] A6. Install the bracket partition between the upper panel and the lower panel of the bracket onto the lower panel assembly of the bracket to form the lower panel assembly of the bracket.

[0021] A7. Assemble the lower panel of the support and install it onto the upper panel of the support, and install the bulk elbow plate assembly located below the lower panel of the support to form the pile-holding support assembly.

[0022] A8. Erect and transport the pile support to the boring machine site to complete the boring machine of the ear plate shaft hole.

[0023] A9. Installing bulk components of the welded pile support.

[0024] A10. Deliver the pile support to the painting site to complete the painting work.

[0025] Furthermore, in step S1, the construction process of the sluice gate is as follows: cutting and blanking the plate, assembling the upper and lower panels of the gate, boring and machining the ear plate pivot holes of the upper and lower panels of the gate, structural welding, and painting the sluice gate.

[0026] Furthermore, the construction process of the pile-holding gate specifically includes the following steps: B1. According to the cutting and blanking drawing of the pile-holding gate, complete the cutting and blanking of each part of the pile-holding gate, and process the transition bevel and the X-shaped bevel of the butt joint of the pile-holding gate ear plate. At the same time, make the powder spraying lines of the center line and the cross center line of the ear plate pivot hole on the upper panel and the lower panel of the gate. Leave machining allowance for the ear plate of the pile-holding gate.

[0027] B2. The upper and lower panels of the gate are assembled based on the powder coating line, and the hole spacing is checked. If there is any deviation, it is corrected. The upper and lower panels of the gate are assembled on the ground jig.

[0028] B3. The upper and lower panels of the gate are welded together on the ground support frame. Depending on the deformation of the panel corners, the panels are flipped over and welded in a timely manner. After the panel joints are welded, the panel level is checked. If there is any deviation, it is corrected.

[0029] B4. Install the gate partition between the upper and lower gate panels onto the upper gate panel assembly to form the upper gate panel assembly.

[0030] B5. Fabrication of dummy shaft fixtures for sluice gates.

[0031] B6. Assemble the upper panel of the gate into the lower panel of the gate. During the installation and welding of the pile-holding gate structure, insert a dummy shaft tool into each of the two sets of ear plate pivot holes. Monitor the rotation of the dummy shaft tool during the welding process. If the rotation is not smooth, correct it in time to ensure the accuracy requirements of the ear plate pivot holes and complete the fabrication of the pile-holding gate structure.

[0032] B7. Transport the sluice gate to the painting site to complete the painting work.

[0033] Further, step S2 includes: C1, placing the pile-holding structure assembly support piers according to the pile-holding structure assembly support diagram.

[0034] C2. After the pile clamp is painted, it is sent to the assembly site. With the help of the first crane, it is turned 180° and placed in a normal position on the assembly support pier. After being temporarily sealed, the first crane releases its hook.

[0035] C3. After the sluice gate is painted, it is sent to the assembly site. With the help of the first crane, the sluice gate is sent to the installation position. After the sluice gate support is tightened, the first crane releases the hook.

[0036] C4. With the assistance of the second crane, one of the shafts is hoisted to the installation position and the shaft is inserted into the shaft hole of the ear plate;

[0037] The first crane re-hooks, and with the assistance of the second crane, rotates the pile-holding gate to complete the rotation test of the shaft; similarly, with the assistance of the first and second cranes, the rotation test of the other shaft is completed.

[0038] C5. After the rotation test of the two shafts is completed, install the two shafts in place to complete the assembly of the pile-holding structure.

[0039] Compared with the prior art, the beneficial technical effects of the present invention are:

[0040] (1) This invention analyzes the working characteristics and structural form of the pile clamping equipment, and rationally arranges the construction process of the pile clamping support and the pile clamping gate. This not only helps to ensure the construction quality of the pile clamping structure, but also reduces the construction cost of the pile clamping structure and improves the economic benefits of the shipyard.

[0041] (2) The construction method of the pile gate provided by the present invention realizes the forward movement of the pile gate machining process by making a dummy shaft tooling for the pile gate, thereby reducing the construction cost of the pile gate; by passing the dummy shaft tooling through the shaft hole, welding deformation can be effectively monitored and corrected in time, thus ensuring the construction accuracy of the pile gate. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the floating dock's buoyancy system.

[0043] Figure 2 This is a schematic diagram of the assembly and division of the pile-holding support in Example 1.

[0044] Figure 3 This is a schematic diagram of the assembly and division of the sluice gate in Example 1.

[0045] Figure 4 This is a schematic diagram (top) of the loose components of the pile-holding support in Example 1.

[0046] Figure 5This is a schematic diagram (bottom) of the loose components of the pile-holding support in Example 1.

[0047] Figure 6 This is a schematic diagram of the powder spraying lines on the upper / lower panels of the bracket in Example 1.

[0048] Figure 7 This is a schematic diagram of the upper / lower panel assembly of the bracket in Embodiment 1.

[0049] Figure 8 This is a schematic diagram of the angled frame of the lower panel of the bracket in Example 1 (structural surface facing down).

[0050] Figure 9 This is a schematic diagram of the angled frame of the lower panel of the bracket in Example 1 (structural surface facing up).

[0051] Figure 10 This is a schematic diagram of the assembly and fabrication of the lower panel of the bracket in Embodiment 1.

[0052] Figure 11 This is a schematic diagram of the powder spraying lines on the upper / lower panel of the gate in Example 1.

[0053] Figure 12 This is a schematic diagram of the assembly and fabrication of the upper panel of the gate in Embodiment 1.

[0054] Figure 13 This is a schematic diagram of the dummy shaft tooling structure of the shovel gate in Example 1.

[0055] Figure 14 This is a top view of the pile-holding bracket and pile-holding gate assembly support in Example 1.

[0056] Figure 15 This is a side view of the pile-holding bracket and pile-holding gate assembly support in Example 1.

[0057] Explanation of reference numerals in the attached drawings: 1. Pile-holding column; 2. Pile-holding base; 3. Pile-holding bracket; 4. Pile-holding gate; 5. Bracket upper panel assembly; 6. Bracket lower panel middle assembly; 7. Elbow plate assembly; 8. Gate upper panel middle assembly; 9. Gate lower panel assembly; 10. Ear plate pivot hole; 11. Bulk elbow plate; 12. Bulk round pipe; 13. Bulk component; 14. Powder spraying line; 15. Shape-preserving reinforcement; 16. Round pipe; 17. Sleeve; 18. Support. Detailed Implementation

[0058] Example 1: The pile-holding structure includes a pile-holding support 3 and a pile-holding gate 4. By analyzing the working characteristics of the pile-holding equipment and the form of the pile-holding structure, the internal assembly of the pile-holding support 3 and the pile-holding gate 4 is reasonably divided, thereby reducing the construction difficulty of the pile-holding support 3 and the pile-holding gate 4.

[0059] Among them, the three groups of pile-holding supports are divided as follows: Figure 2As shown, the assembly is divided into three parts: the upper panel assembly 5, the lower panel assembly 6, and the bulk elbow plate assembly 7 located below the lower panel. The lower panel assembly 6, consisting of the partition plate between the upper and lower panels, is formed by the lower panel assembly. The assembly of the 4-piece sluice gate is as follows. Figure 3 As shown, the gate is divided into an upper panel assembly 8 and a lower panel assembly 9. The gate partition between the upper and lower panels and the upper panel together form the upper panel assembly 8. In this embodiment, the ear plates of the pile-holding bracket 3 and the pile-holding gate 4 are both 100mm thick and made of Q690E steel. The inner diameter of the machined ear plate pivot hole 10 is 206mm.

[0060] The construction method of the pile-holding structure includes the following steps: S1, the structural bodies of the pile-holding support 3 and the pile-holding gate 4 of the pile-holding structure are constructed separately.

[0061] The pile-holding bracket 3 is constructed using a reverse-state method, and the reverse-state boring process is followed by overall machining of the ear plate pivot hole 10 after the structure of the pile-holding bracket 3 is welded. The construction process of the pile-holding bracket 3 is as follows: plate cutting and blanking, structural assembly and welding, overall machining of the ear plate pivot hole 10, and painting of the pile-holding bracket 3.

[0062] The piling gate 4 is constructed in a normal manner. After the ear plates of the piling gate 4 are cut and prepared, the upper and lower panels of the gate are assembled first, then the ear plate pivot holes 10 are machined, and finally the structure of the piling gate 4 is welded. The construction process of the piling gate 4 is as follows: cutting and preparing sheet metal, assembling the upper and lower panels of the gate, boring and machining the pivot holes 10 of the ear plates of the upper and lower panels of the gate, structural welding, and painting of the piling gate.

[0063] S2. Rotate the pile support 3 and the pile gate 4 for testing and assemble them into a whole.

[0064] In this embodiment, the construction method of the pile clamping bracket 3 includes the following steps: (1) Determine the details of the loose components of the pile clamping bracket 3 according to the installation space requirements of the post-weld boring equipment of the pile clamping bracket 3. For example Figure 4 and Figure 5 As shown, the bulk components include a bulk elbow plate 11, a bulk round tube 12, and a bulk component 13.

[0065] (2) According to the cutting and blanking drawing of the pile clamping bracket 3, complete the cutting and blanking of each part of the pile clamping bracket 3, and process the transition bevel of the ear plate and the X-shaped bevel of the butt joint of the pile clamping bracket 3. At the same time, make the powder spraying lines 14 (such as the center line and the cross center line of the shaft hole) on the upper panel and the lower panel of the bracket. Figure 6 (As shown). The ear plates of the pile-holding bracket 3 have a machining allowance.

[0066] (3) The upper and lower panels of the bracket are assembled based on the powder spraying line 14, and the hole spacing is checked. If there is a deviation, it is corrected, and a shape-retaining reinforcement 15 is added between the ear plates (e.g. Figure 7 (As shown).

[0067] The upper panel of the support is assembled on the ground jig, and the lower panel of the support is assembled on a jig that is compatible with it.

[0068] (4) The upper panel of the support is welded on the ground frame. According to the deformation of the panel corner, it is turned over and welded in time. After the welding of the upper panel of the support is completed, the level of the panel is checked. If it exceeds the tolerance, it is corrected.

[0069] (5) The lower panel of the bracket is fitted with a folding bracket (see...). Figure 8 Weld the joints on the panels and secure them firmly with a board. Depending on the deformation of the panel corners, flip the panels over and weld them as needed.

[0070] After flipping it over, put the corner bracket back on (see) Figure 9 After securing the panel with the support plate again, and after the butt joint of the panel under the bracket is welded, check the angle of the panel bend. If it exceeds the tolerance, correct it.

[0071] (6) Install the bracket partition between the upper and lower panels of the bracket onto the lower panel assembly to form the lower panel assembly 6 (see Figure 10 The fender supports on both the bow and stern sides will not be installed yet; they will be installed after the pile-holding brackets are welded.

[0072] (7) Install the middle assembly 6 of the lower panel of the support to the upper panel assembly 5 of the support, and install the bulk elbow plate assembly 7 located below the lower panel of the support to form the pile-holding support assembly.

[0073] (8) Assemble and transport the pile support to the boring processing site to complete the boring processing of the ear plate shaft hole.

[0074] (9) Install the bulk components of the welded pile support.

[0075] (10) Send the pile support to the painting site to complete the painting work.

[0076] In this embodiment, the construction method of the pile-supported gate includes the following steps:

[0077] (1) According to the cutting and blanking drawing of the pile-holding gate 4, complete the cutting and blanking of each part of the pile-holding gate 4, and process the transition bevel of the ear plate and the X-shaped bevel of the butt joint of the pile-holding gate 4. At the same time, make the powder spraying lines 14 on the center line and the cross center line of the ear plate shaft hole on the upper panel and the lower panel of the gate, such as Figure 11 As shown. The lugs of the sluice gate 4 have a machining allowance.

[0078] (2) The upper and lower panels of the gate are assembled based on the powder spraying line 14, and the hole spacing is checked. If there is any deviation, it is corrected. The upper and lower panels of the gate are assembled on the ground frame.

[0079] (3) The upper panel and the lower panel of the gate are welded together on the ground frame. According to the deformation of the panel corners, the panels are flipped over and welded in time. After the panel joints are welded, the panel level is checked. If there is any deviation, it is corrected.

[0080] (4) Install the gate partition between the upper and lower gate panels onto the upper gate panel assembly to form assembly 8 in the upper gate panel, such as... Figure 12 As shown.

[0081] (5) Fabricate a dummy shaft fixture for the sluice gate 4, such as Figure 13 As shown, the dummy shaft fixture consists of a circular tube 16 with an outer diameter of 168 mm and sleeves 17 with an outer diameter of approximately 206 mm welded to both ends of the circular tube 16. By fabricating the dummy shaft fixture for the pile-holding gate 4, the machining process of the pile-holding gate 4 is moved forward, reducing the construction cost of the pile-holding gate 4.

[0082] (6) Install the upper panel assembly 8 of the gate to the lower panel assembly 9 of the gate. During the installation and welding of the pile gate 4 structure, insert a dummy shaft tool into each of the two sets of ear plate rotating shaft holes. Monitor the rotation of the dummy shaft tool during the welding process. If the rotation is not smooth, correct it in time to ensure the accuracy requirements of the ear plate rotating shaft hole and complete the construction of the pile gate 4 structure.

[0083] (7) Send the sluice gate 4 to the painting site to complete the painting work.

[0084] In this embodiment, the specific method for rotating and assembling the pile-holding bracket 3 and the pile-holding gate 4 into a whole is as follows: (1) Place the pile-holding structure assembly support pier 18 according to the pile-holding structure assembly support diagram, such as... Figure 14 and Figure 15 As shown.

[0085] (2) After the pile support 3 is painted, it is sent to the assembly site. With the help of the first crane, it is turned 180° and stored in a normal position on the assembly support pier 18. After being temporarily sealed, the first crane is released.

[0086] (3) After the painting of the pile gate 4 is completed, it is sent to the assembly site. With the cooperation of the first crane, the pile gate 4 is sent to the installation position. After the support of the pile gate 4 is tightened, the first crane releases the hook.

[0087] (4) With the help of the second crane, one of the shafts is hoisted to the installation position and the shaft is inserted into the shaft hole of the ear plate.

[0088] The first crane re-hooks, and with the assistance of the second crane, rotates the pile-holding gate 4 to complete the rotation test of the shaft; similarly, with the assistance of the first and second cranes, the rotation test of the other shaft is completed.

[0089] (5) After the rotation test of the two shafts is completed, the two shafts are installed in place to complete the assembly of the pile-holding structure.

[0090] This embodiment, through the rational arrangement of the material cutting, machining, and welding processes of the pile-holding bracket 3 and the pile-holding gate 4, can both meet the precision requirements of the pile-holding structure and reduce the overall manufacturing cost of the pile-holding structure. This reduces shipyard construction costs and improves the shipyard's economic efficiency.

[0091] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A method for constructing a pile-holding structure, the pile-holding structure comprising a pile-holding support and a pile-holding gate, characterized in that, Includes the following steps: S1. Construct pile-holding supports and pile-holding gates respectively; The pile-holding support is constructed using reverse-state construction and reverse-state boring. After welding, the ear plate pivot holes of the pile-holding support structure are machined as a whole. The normal construction of the sluice gate involves cutting and preparing the ear plates of the sluice gate, then assembling the upper and lower panels of the gate, machining the pivot holes in the ear plates, and finally welding the sluice gate structure. S2. Rotate the pile clamping bracket and pile clamping gate and assemble them into a whole; In step S1, the construction process of the pile-holding support is as follows: A1. Determine the list of bulk components of the pile gripper based on the installation space requirements of the post-weld boring equipment for the pile gripper. A2. According to the cutting and blanking drawing of the pile clamping bracket, complete the cutting and blanking of each part of the pile clamping bracket, and process the transition bevel and the X-shaped bevel of the ear plate of the pile clamping bracket. At the same time, make the powder spraying lines of the center line and the cross center line of the ear plate shaft hole on the upper panel and the lower panel of the bracket. Leave the ear plate of the pile clamping bracket with the machining allowance. A3. The upper and lower panels of the bracket are assembled based on the powder spraying line, and the hole spacing is checked. If there is a deviation, it is corrected, and shape-preserving reinforcement is added between the ear plates. The upper panel of the support is assembled on the ground jig, and the lower panel of the support is assembled on a matching jig. A4. The upper panel of the support is welded to the ground frame. According to the deformation of the panel corners, the panels should be flipped over and welded in time. After the welding of the upper panel of the support is completed, the levelness of the panel is checked. If it exceeds the tolerance, it is corrected. A5. The lower panel of the bracket is welded to the mating angle bracket, and the panel is sealed firmly with a board. The panel is flipped over and welded in time according to the deformation of the panel corner. After flipping it over, put the corner bracket back on and secure the panel with the bracket again. After the panel under the bracket is welded, check the corner angle of the panel. If it is out of tolerance, correct it. A6. Install the bracket partition between the upper panel and the lower panel of the bracket onto the lower panel assembly of the bracket to form the lower panel assembly of the bracket. A7. Assemble the lower panel of the support and install it onto the upper panel of the support, and install the bulk elbow plate located below the lower panel of the support to form the pile-holding support assembly. A8. Erect and transport the pile support to the boring and machining site to complete the boring and machining of the ear plate pivot hole; A9. Installing bulk components of the welded pile support; A10. Deliver the pile support to the painting site to complete the painting work.

2. The method for constructing a pile-supported structure according to claim 1, characterized in that, In step S1, the construction process of the sluice gate is as follows: cutting and blanking the plate, assembling the upper and lower panels of the gate, boring and machining the ear plate pivot holes of the upper and lower panels of the gate, structural welding, and painting the sluice gate.

3. The method for constructing a pile-supported structure according to claim 2, characterized in that, The construction process of a sluice gate with a pile driver includes the following steps: B1. According to the cutting and blanking drawing of the sluice gate, complete the cutting and blanking of each part of the sluice gate, and process the transition bevel and the X-shaped bevel of the butt joint of the sluice gate ear plate. At the same time, make the powder spraying lines of the center line and the cross center line of the ear plate shaft hole on the upper panel and the lower panel of the gate. Leave the machining allowance for the ear plate of the sluice gate. B2. The upper and lower panels of the gate are assembled based on the powder coating line, and the hole spacing is checked. If there is any deviation, it is corrected. The upper and lower panels of the gate are assembled on the ground jig. B3. The upper and lower panels of the gate are welded together on the ground support frame. Depending on the deformation of the panel corners, the panels are flipped over and welded in time. After the panel joints are welded, the panel level is checked. If there is any deviation, it is corrected. B4. Install the gate partition between the upper and lower gate panels onto the upper gate panel assembly to form the upper gate panel assembly. B5. Fabrication of dummy shaft fixtures for sluice gates with piles; B6. Assemble the upper panel of the gate to the lower panel of the gate. During the installation and welding of the pile gate structure, insert a dummy shaft tool into each of the two sets of ear plate pivot holes. Monitor the rotation of the dummy shaft tool during the welding process. If the rotation is not smooth, correct it in time to ensure the accuracy requirements of the ear plate pivot holes and complete the fabrication of the pile gate structure. B7. Transport the sluice gate to the painting site to complete the painting work.

4. The method for constructing a pile-supported structure according to claim 3, characterized in that, Step S2 includes: C1. Place the pile-support assembly piers according to the pile-support assembly diagram. C2. After the pile clamp is painted, it is sent to the assembly site. With the help of the first crane, it is turned 180° and placed in a normal position on the assembly support pier. After being temporarily sealed, the first crane is released. C3. After the piling gate is painted, it is sent to the assembly site. With the help of the first crane, the piling gate is sent to the installation position. After the piling gate support is tightened, the first crane releases the hook. C4. With the assistance of the second crane, one of the shafts is hoisted to the installation position and the shaft is inserted into the shaft hole of the ear plate; The first crane re-hooks, and with the assistance of the second crane, rotates the pile-holding gate to complete the rotation test of the shaft; similarly, with the assistance of the first and second cranes, the rotation test of the other shaft is completed. C5. After the rotation test of the two shafts is completed, install the two shafts in place to complete the assembly of the pile-holding structure.

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