Underground continuous wall steel box and socket-type steel mesh joint processing platform and method

Abstract

The present invention provides a processing platform for underground continuous wall steel boxes and socket-type steel mesh joints. The processing platform includes a plurality of supports arranged in parallel, limit plates fixed on both sides of the supports, and a roller structure fixed to the supports. The limit plates include a first limit plate and a second limit plate. The processing platform is divided into a steel box structure extension area and a steel mesh processing area along the support arrangement direction. The first limit plate is located in the steel box structure extension area, and the second limit plate is located in the steel mesh processing area. The height of the top of the first limit plate is greater than the height of the top of the roller structure, and the height of the top of the second limit plate is equal to or less than the height of the top of the roller structure. The roller structure supports the steel box and enables it to slide along the support arrangement direction. The first limit plates on both sides of the support limit the steel box, and the steel mesh passes through the top of the second limit plate. The processing platform of the present invention has high processing precision, low manufacturing cost, and high processing efficiency, which is conducive to improving the overall quality of the continuous wall.

Description

Technical Field

[0001] The present invention relates to the field of underground continuous wall joints, in particular to a platform and method for processing underground continuous wall steel box and socket-type steel mesh joints. Background Art

[0002] Diaphragm walls, due to their high rigidity, excellent impermeability, and strong adaptability to ground conditions, are widely used in deep foundation pit retaining structures and hydraulic anti-seepage systems. With the advancement of construction technology, diaphragm walls are increasingly becoming permanent structures. These permanent structures place high demands on the mechanical properties of diaphragm walls, and conventional joints are no longer sufficient for construction projects. Joints must demonstrate excellent bending and shear resistance. For ultra-deep and special-shaped retaining structures, a new type of joint combining steel boxes and socket mesh has emerged.

[0003] Traditional steel box processing platforms require a crane to turn the structure over when welding steel plates, resulting in a complex process. The steel box must be machined before the steel mesh is welded, resulting in low precision. Due to the depth of the underground diaphragm wall during construction, the lifting height of the steel box and steel cage is limited. This typically requires a crawler crane and gantry crane to perform segmented lifting operations. Each segment is hoisted into the slot and temporarily secured. The next segment is then hoisted and connected to the previous one before being lowered as a whole. This makes the crawler crane and gantry crane difficult to maneuver, resulting in slow processing efficiency. The on-site machining and welding between segments also hinders effective guarantee of steel box structure precision. This can cause damage to the socket-type steel mesh during the lowering of the second-phase steel cage, making it difficult to lower the cage. Furthermore, problems with the socket-type steel mesh joints are difficult to resolve, seriously impacting the quality of underground diaphragm wall construction. Furthermore, in some complex underground diaphragm wall structures, the steel box joints are coupled to the steel mesh, placing higher demands on processing. At present, there is no dedicated processing platform for underground continuous wall steel boxes and socket-type steel mesh joints. Therefore, it is urgent to develop a high-precision processing platform for underground continuous wall joint boxes, which can integrate steel mesh processing while realizing high-precision processing of joint boxes to improve processing efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a processing platform and method for underground continuous wall steel box and socket-type steel mesh joints. The processing platform can improve the processing accuracy of the steel box and socket-type steel mesh joints, has a simple structure, low manufacturing cost, and high processing efficiency, which is conducive to improving the overall quality of the continuous wall.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an underground continuous wall steel box and socket-type steel mesh joint processing platform, characterized in that the processing platform includes a plurality of supports arranged in parallel in a row, limit plates fixed on both sides of the supports, and a roller structure fixed on the supports, the limit plates include a first limit plate and a second limit plate, and the processing platform is divided into a steel box structure extension area and a steel mesh processing area along the support arrangement direction, the first limit plate is located in the steel box structure extension area, and the second limit plate is located in the steel mesh processing area, the height of the top of the first limit plate is greater than the height of the top of the roller structure, and the height of the top of the second limit plate is equal to or less than the height of the top of the roller structure, the roller structure supports the steel box and enables the steel box to slide on the roller structure along the support arrangement direction, the first limit plates on both sides of the support limit the steel box, and the steel mesh passes through the top of the second limit plate.

[0006] Furthermore, a plurality of support beams perpendicular to the sliding direction of the steel box are provided on the outer side of the second limiting plate, a vertical upward positioning rod is fixed on the support beam, and one or more rulers for positioning the steel mesh are installed on the positioning rod, the ruler is perpendicular to the positioning rod, and the ruler can slide along the length direction of the positioning rod and can rotate on the horizontal plane.

[0007] Furthermore, the ruler includes a support plate which is rotatably connected to the positioning rod at one end and is arranged horizontally, and a positioning plate which is vertically arranged on the support plate. The positioning plate is slidably connected to the support plate. The support plate is used to place the steel mesh, and the positioning plate positions the steel mesh.

[0008] Furthermore, the positioning rod is provided with a second scale along the length direction of the positioning rod, and the second scale is used for vertical positioning. The support plate of the ruler is provided with a first scale along the length direction of the support plate, and the first scale is used for horizontal positioning.

[0009] Furthermore, the positioning plate is mounted on the support plate via a frame. The frame is sleeved on the support plate and can slide along the length direction of the support plate and is fixed by a fixing piece.

[0010] Furthermore, the support beam is located at the connection between the second limiting plate and the support, and the distances between adjacent support beams are equal.

[0011] The method for processing the joint of underground continuous wall steel box and socket-type steel mesh comprises the following steps:

[0012] Hoist the first section of steel box to the hoisting station, and move the first section of steel box to the lengthening station;

[0013] Hoist the second section of steel box to the hoisting station, splice it with the first section of steel box to lengthen it, and move the first section of steel box to the steel mesh processing station;

[0014] Welding the anti-circulation iron sheet and steel mesh of the first section of the steel box;

[0015] Move the first section of steel box, and the second section of steel box enters the steel mesh processing station to weld the anti-circulation iron sheet and steel mesh of the second section of steel box.

[0016] In one embodiment, the welding step of the steel mesh includes: adjusting the support plates and positioning plates of all the rulers to preset positions according to the first scale and the second scale, and placing the steel mesh on the support plates for welding.

[0017] In another embodiment, the welding steps of the steel mesh include: adjusting all the support plates of the ruler to a preset position according to the second scale, placing the longitudinal steel bars on the support plates from the inside to the outside according to the first scale, placing multiple U-head steel bars on the longitudinal steel bars, welding the U-head steel bars to the steel box, and welding the longitudinal steel bars to the U-head steel bars.

[0018] Furthermore, after the steel mesh is welded, the anti-circumvention iron sheet on the side of the steel box close to the roller structure is welded.

[0019] Beneficial effects of the present invention:

[0020] 1. The height of the limit plate in the steel mesh processing area of ​​the present invention is only the height of the roller. When the steel box is pushed to the position, it does not affect the installation of the steel mesh. The steel box structure extension and the steel mesh installation are completed on this platform, which improves the processing accuracy and convenience, and has high processing efficiency.

[0021] 2. The present invention utilizes a limiting plate to limit the steel box structure, thereby ensuring the verticality of the steel box structure during processing and avoiding large assembly errors.

[0022] 3. The present invention uses a ruler to position the steel mesh, thereby improving the processing accuracy of the socket-type steel mesh. The second-phase steel cage is not prone to collision damage when lowering, and is easy to lower, thereby improving the overall construction quality and efficiency of the underground continuous wall.

[0023] 4. The processing platform of the present invention is composed of standardized steel legs, steel beams, limit plates and roller structures. The dimensional deviation of each component is small, the structural rigidity is large, and the processing platform is simple to manufacture.

[0024] 5. The present invention installs rollers on the support to make the steel box slide on the processing platform, eliminating the need for frequent lifting during processing, thereby greatly improving construction convenience.

[0025] 6. The present invention can directly process the joint to the required length and then hoist it as a whole without the need for on-site processing and welding, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic diagram of the present invention in use;

[0027] Figure 2 It is a structural schematic diagram of the roller structure and the support of the present invention;

[0028] Figure 3 This is a structural diagram of the steel mesh processing area of ​​the present invention;

[0029] Figure 4 This is a schematic structural diagram of a ruler and a positioning rod of the present invention;

[0030] Figure 5 A three-dimensional diagram of the underground continuous wall steel box and the socket-type steel mesh joint

[0031] Figure 6 This is a cross-sectional view of the underground continuous wall steel box and the socket-and-spigot steel mesh joint;

[0032] Figure 7 Layout drawing of the steel mesh for the underground diaphragm wall steel box and the socket-and-spigot steel mesh joints;

[0033] Figure 8 This is a structural diagram of the underground continuous wall steel box and the socket-type steel mesh joint used in the T-shaped groove;

[0034] Figure numerals: support leg 1, beam 2, roller seat 3, roller 4, roller 5, steel box structure extension area 6, steel mesh processing area 7, first limit plate 8, second limit plate 9, positioning rod 10, ruler 11, steel box 12, steel mesh 13, flange 14, web 15, fixing sleeve 16, shear nail 17, rib 18, U-head steel bar 19, longitudinal steel bar 20, anti-circulation iron sheet 21, support beam 22, positioning plate 23, support plate 24, frame 25, fixing part 26, first scale 27, second scale 28. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] This processing platform is mainly used for processing underground continuous wall steel boxes and socket-type steel mesh joints, such as Figure 4 As shown in FIG. 1 , the structure of the underground continuous wall steel box and the socket-and-spigot type steel mesh joint in this embodiment is shown. The joint is composed of a multi-section steel box 12 and a socket-and-spigot type steel mesh 13 .

[0037] The steel box 12 is a "double-joined I-shaped" structure formed by welding steel plates. The length of the segment is determined according to specific needs. The standard segment length is 6m. Figure 5As shown, the steel box 12 includes two parallel long plate-like flanges 14 and two parallel long plate-like webs 15. The two webs 15 are located between the two flanges 14 and are perpendicular to the flanges 14. The webs 15 and the flanges 14 are fixed together by welding. A fixing sleeve 16 is provided on the outer surface of the flange 14. A reinforcing steel plate is provided in the area surrounded by the two flanges 14 and the two webs 15 to increase the overall rigidity of the steel box 12. A plurality of rows of shear studs 17 and a plurality of ribs 18 are welded along the length direction of each web 15. In this embodiment, three rows of shear studs 17 and two ribs 18 are provided. The ribs 18 are located between two adjacent rows of shear studs 17.

[0038] like Figure 6 As shown, the steel mesh 13 is symmetrically arranged on both sides of the steel box 12 and is located between the two flanges 14. Multiple layers are arranged on each side. In this embodiment, four layers are arranged. The middle two layers are welded to the two ribs 18 respectively, and the outer two layers are welded to the inner sides of the two flanges 14 respectively. Each row of steel mesh 13 is composed of a plurality of U-shaped head steel bars 19 and a plurality of longitudinal steel bars 20 welded to the U-shaped head steel bars 19. The U-shaped head steel bars 19 and the longitudinal steel bars 20 are both parallel to the flanges 14. The U-shaped head steel bars 19 form a U-shaped structure by two straight segments and one curved segment, and the opening of the U-shaped structure faces the steel box 12. The two straight segments are welded to the ribs 18 or the flanges 14. The longitudinal steel bars 20 are perpendicular to the straight segments of the U-shaped head steel bars 19. The U-shaped head steel bars 19 can enhance the bending resistance of the joint; the outer side of the flange 14 is provided with an anti-circulation iron sheet 21 along the edge in the longitudinal direction. The anti-circulation iron sheet 21 can prevent the concrete from bypassing the steel box 12 and flowing to the adjacent trough section during pouring, thereby affecting the construction quality of the ground-connected wall. The steel box 12 is also provided with a lifting lug, through which a steel wire rope can be passed, and the steel box 12 is pulled to move by a winch through the steel wire rope.

[0039] like Figure 8 As shown in FIG, it is a structural diagram of the joint used in the T-shaped slot section. There are three joints, which are respectively located at the three ends of the T-shape. The position where the joint is located is the leading slot section, which is constructed first. The remaining positions are the trailing slot sections. After the construction of the joint is completed, the lower steel cage is moved to the trailing slot section. If the processing accuracy of the joint in the leading slot section is not high and the verticality is not enough, the lower steel cage will collide with the steel mesh 13 during the process, thereby causing damage to the steel mesh 13, seriously affecting the construction quality and progress of the underground continuous wall.

[0040] Example 1: Figure 1 As shown, it is a processing platform for underground continuous wall steel box and socket-type steel mesh joints, which includes supports arranged in parallel, limit plates fixed on both sides of the supports, roller structures fixed on the supports, and a ruler 11 for determining the welding position of the longitudinal steel bars 20.

[0041] like Figure 2As shown, the support includes two steel legs 1 and a steel beam 2 fixed on the legs 1. The roller structure includes two roller seats 3, a roller 4 arranged on the roller seat 3, and a roller 5 sleeved on the roller 4. The two roller seats 3 are fixed at both ends of the beam 2.

[0042] The processing platform is divided into a steel box structure extension area 6 and a steel mesh processing area 7 along the support arrangement direction. The limit plate includes a first limit plate 8 and a second limit plate 9 connected end to end. The first limit plate 8 and the second limit plate 9 are both steel plates. The first limit plate 8 is located in the steel box structure extension area 6, and the second limit plate 9 is located in the steel mesh processing area 7. The height of the top of the first limit plate 8 is greater than the height of the top of the roller structure, and the height of the top of the second limit plate 9 is equal to or less than the height of the top of the roller structure. The two sides of the support The first limiting plate 8 limits the steel box 12, and the steel mesh 13 passes through the top of the second limiting plate 9. In this embodiment, the height of the first limiting plate 8 extends to above the middle of the steel box 12, and the top of the second limiting plate 9 is flush with the top of the roller 5. When the steel box 12 is processed, the steel box 12 lies flat on the processing platform, that is, the flange 14 is placed on the roller 5. The length direction of the steel box 12 is the arrangement direction of the support. The distance between the limiting plates on both sides of the support is slightly larger than the width of the steel box 12, that is, larger than the width of the flange 14 of the steel box 12.

[0043] The outer side of the limit plate 8 of the steel mesh processing area 7 is also welded with a support beam 22. Figure 3 As shown, the support beam 22 is located at the connection between the second limit plate 9 and the support, and the adjacent support beams 22 are spaced equally apart. A vertically upward positioning rod 10 is welded on the support beam 22, and the positioning rod 10 is a round steel bar. A straightedge 11 is installed on the positioning rod 10, and the straightedge 11 can slide along the length direction of the positioning rod 10 and can rotate relative to the positioning rod 10. The positioning rod 10 is provided with a second scale 28 along the length direction of the positioning rod 10, which is used to accurately locate the vertical position of the straightedge 11, thereby locating the vertical position of the longitudinal steel bars 20 in the steel mesh 13.

[0044] like Figure 4 As shown, the ruler 11 includes a circular ring rotatably connected to the positioning rod 10, a support plate 24 horizontally arranged at one end connected to the circular ring, and a positioning plate 23 perpendicular to the support plate 24. The positioning plate 23 is installed on the support plate 24 through a frame 25. The frame 25 is sleeved on the support plate 24 and can slide along the length direction of the support plate 24 and is fixed by a fixing member 26. In this embodiment, the fixing member 26 is a rotating fixing buckle, which can fix and release the positioning plate 23 by rotation. The support plate 24 is also provided with a first scale 27 along the length direction of the support plate 24, which is used to locate the horizontal position of the longitudinal steel bars 20 in the steel mesh 13. One ruler 11 or multiple rulers 11 can be set on each positioning rod 10. In this embodiment, one ruler 11 is set.

[0045] The standard segment length of the steel box 12 is 6m. It is welded outside the processing platform and should be processed into different lengths according to actual conditions.

[0046] The processing method of underground continuous wall steel box and socket-type steel mesh joint includes the following steps:

[0047] Hoist the first section of the steel box 12 to the hoisting station, which is located in the steel box structure extension area 6. Pass the steel wire rope through the lifting lugs on the steel box 12, and use the winch to pull the first section of the steel box 12 on the roller 5 to the extension station in the steel box structure extension area 6.

[0048] Hoist the second steel box 12 to the hoisting station, weld the second steel box 12 to the first steel box 12 end to end, and pull the first steel box 12 to move to the steel mesh processing station, which is located in the steel mesh processing area 7;

[0049] After the first section of the steel box 12 is moved to the steel mesh processing station, the anti-circulation iron sheet 21 of the first section of the steel box 12 is welded, and then the steel mesh 13 is welded;

[0050] The first section of the steel box 12 is moved to drive the second section of the steel box 12 to move to the steel mesh processing area 7, and the steel mesh 13 of the second section of the steel box 12 is processed.

[0051] The welding of the steel mesh 13 is specifically as follows: the steel mesh 13 is welded layer by layer by adjusting the position of the ruler 11 in the vertical direction, and welding can be performed from top to bottom or from bottom to top; taking welding from bottom to top as an example: first weld the first layer, that is, the bottom layer, the initial state of the ruler 11 is parallel to the moving direction of the steel box 12, and according to the second scale 28 on the positioning rod 10, adjust the vertical position of all the rulers 11 to the preset welding position of the bottom layer of the steel mesh 13, and then rotate all the rulers 11 so that the support plate 24 of the ruler 11 is perpendicular to the moving direction of the steel box 12, and then loosen the fixing piece 26, according to the The first scale 27 on the support plate 24 moves the positioning plate 23 to the preset welding position of the longitudinal steel bar 20 closest to the web 15, and places the longitudinal steel bar 20 on the support plate 24 of the ruler 11 along the moving direction of the steel box 12, and close to the positioning plate 23, and then moves the positioning plate 23 in sequence to complete the placement of other longitudinal steel bars 20, and finally places multiple U-head steel bars 19 on the longitudinal steel bars 20 along the length direction of the longitudinal steel bars 20, welds the U-head steel bars 19 to the inner side of the flange 14 of the steel box 12, and welds the longitudinal steel bars 20 to the U-head steel bars 19 to complete the welding of the first layer of steel mesh 13.

[0052] Similarly, the second, third and fourth layers of steel mesh 13 are welded according to the above method.

[0053] Example 2: Compared with Example 1, the only difference in Example 2 is the number of rulers 11 provided on each positioning rod 10. In this embodiment, four rulers 11 are provided on each positioning rod 10 to position the four layers of steel mesh 13 respectively. The welding of the steel mesh 13 is specifically as follows: the ruler 11 is initially parallel to the moving direction of the steel box 12. According to the second scale 28 on the positioning rod 10, the vertical position of all the rulers 11 is adjusted to the preset welding position of each layer of steel mesh 13. The four rulers 11 correspond to the welding positions of the four layers of steel mesh 13 respectively. Then, the first layer of ruler 11, i.e., the bottom layer of ruler 11, is rotated so that the support plate 24 of the ruler 11 is perpendicular to the moving direction of the steel box 12. Then, the fixing piece 26 is loosened. According to the first scale 27 on the support plate 24, the positioning plate 23 is moved to the preset welding position of the longitudinal steel bar 20 closest to the web 15, and the longitudinal steel bar 20 is placed on the support plate 24 of the ruler 11 along the moving direction of the steel box 12, and close to the positioning plate 23, and then the positioning plate 23 is moved in sequence to complete the placement of other longitudinal steel bars 20. Finally, multiple U-head steel bars 19 are placed on the longitudinal steel bars 20 along the length direction of the longitudinal steel bars 20, and the U-head steel bars 19 are welded to the inner side of the flange 14 of the steel box 12. The longitudinal steel bars 20 are welded to the U-head steel bars 19 to complete the welding of the bottom layer of steel mesh 13.

[0054] To weld the second, third and fourth layers of steel mesh 13, it is only necessary to rotate the ruler 11 at the corresponding position so that the support plate 24 of the ruler 11 is perpendicular to the moving direction of the steel box 12, and then weld according to the above method.

[0055] Example 3: Compared to Example 1, Example 3 differs only in the specific method of welding the steel mesh 13. The steel mesh 13 is welded as follows: After all structures of the steel mesh 13 except the outermost longitudinal steel bars 20 are processed outside the processing platform, the entire structure is hoisted onto the ruler 11 and positioned. The U-shaped head steel bars 19 are then welded to the steel box 12, and the outermost longitudinal steel bars 20 are also welded.

[0056] Example 4: Compared with Example 1, Example 4 differs only in the welding order of the bypass iron sheet 21. In this example, the bypass iron sheet 21 on the side of the steel box 12 close to the roller 5 can be welded after the steel mesh 13 is welded.

[0057] The welding method of the steel mesh 13 is not limited to the above-mentioned processing method of the steel mesh 13. The main function of the steel mesh processing area 7 is to ensure the accuracy of the overall position of the steel mesh 13 through the ruler 11.

[0058] The above illustrates and describes the basic principles and main structural features of the present invention. The present invention is not limited to the above examples. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. Underground continuous wall steel box and socket type steel mesh joint processing platform, characterized by: The processing platform includes a plurality of supports arranged in parallel in a row, limit plates fixed on both sides of the supports, and a roller structure fixed on the supports, the limit plates include a first limit plate (8) and a second limit plate (9), and the processing platform is divided into a steel box structure extension area (6) and a steel mesh processing area (7) along the support arrangement direction, the first limit plate (8) is located in the steel box structure extension area (6), the second limit plate (9) is located in the steel mesh processing area (7), the height of the top of the first limit plate (8) is greater than the height of the top of the roller structure, and the height of the top of the second limit plate (9) is equal to or less than the height of the top of the roller structure, the roller structure supports the steel box (12) and enables the steel box (12) to slide on the roller structure along the support arrangement direction, the first limit plates (8) on both sides of the support limit the steel box (12), and the steel mesh (13) passes through the top of the second limit plate (9); A plurality of support beams (22) perpendicular to the sliding direction of the steel box (12) are provided on the outer side of the second limiting plate (9), a vertically upward positioning rod (10) is fixed on the support beam (22), and one or more straightedges (11) for positioning the steel mesh (13) are installed on the positioning rod (10), the straightedges (11) are perpendicular to the positioning rod (10), and the straightedges (11) can slide along the length direction of the positioning rod (10) and can rotate on a horizontal plane; The ruler (11) includes a support plate (24) rotatably connected to the positioning rod (10) at one end and arranged horizontally, and a positioning plate (23) vertically arranged on the support plate (24), wherein the positioning plate (23) is slidably connected to the support plate (24), the support plate (24) is used to place the steel mesh (13), and the positioning plate (23) positions the steel mesh (13); The positioning rod (10) is provided with a second scale (28) along the length direction of the positioning rod (10), and the second scale (28) is used for vertical positioning. The support plate (24) of the ruler (11) is provided with a first scale (27) along the length direction of the support plate (24), and the first scale (27) is used for horizontal positioning.

2. The underground continuous wall steel box and socket-type steel mesh joint processing platform according to claim 1, characterized in that: The positioning plate (23) is installed on the support plate (24) through a frame (25). The frame (25) is sleeved on the support plate (24) and can slide along the length direction of the support plate (24) and is fixed by a fixing member (26).

3. The underground continuous wall steel box and socket-type steel mesh joint processing platform according to claim 1, characterized in that: The support beams (22) are located at the connection between the second limiting plate (9) and the support, and the spacing between adjacent support beams (22) is equal.

4. A method for processing underground continuous wall steel box and socket-and-spigot steel mesh joints using the underground continuous wall steel box and socket-and-spigot steel mesh joint processing platform according to any one of claims 1 to 3, characterized in that: The following steps are involved: Hoisting the first section of the steel box (12) to the hoisting station, and moving the first section of the steel box (12) to the lengthening station; Hoisting the second steel box (12) to the hoisting station, splicing it with the first steel box (12) to lengthen it, and moving the first steel box (12) to the steel mesh processing station; Welding the anti-circumvention iron sheet (21) and the steel mesh (13) of the first section steel box (12); The first steel box (12) is moved, and the second steel box (12) enters the steel mesh processing station to weld the anti-circumvention iron sheet (21) and the steel mesh (13) of the second steel box (12).

5. The method for processing the underground continuous wall steel box and the socket-and-spigot steel mesh joint according to claim 4, characterized in that: The welding steps of the steel mesh (13) include: adjusting the support plates (24) and positioning plates (23) of all the rulers (11) to preset positions according to the first scale (27) and the second scale (28), and placing the steel mesh (13) on the support plates (24) for welding.

6. The method for processing the underground continuous wall steel box and the socket-and-spigot steel mesh joint according to claim 5, characterized in that: The welding steps of the steel mesh (13) include: adjusting the support plates (24) of all the rulers (11) to a preset position according to the second scale (28), placing longitudinal steel bars (20) on the support plates (24) from the inside to the outside according to the first scale (27), placing a plurality of U-shaped head steel bars (19) on the longitudinal steel bars (20), welding the U-shaped head steel bars (19) to the steel box (12), and welding the longitudinal steel bars (20) to the U-shaped head steel bars (19).

7. The method for processing the underground continuous wall steel box and the socket-and-spigot steel mesh joint according to claim 4, characterized in that: After the steel mesh (13) is welded, the bypass prevention iron sheet (21) on the side of the steel box (12) close to the roller structure is welded.

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