Rigid hanging system for hanging box cofferdam

Abstract

The utility model relates to a rigid hanging system for a hanging box cofferdam, and belongs to the technical field of cofferdam construction. The rigid hanging system for the hanging box cofferdam comprises a carrying pole beam; the anchor box comprises an upper anchor box and a lower anchor box which are located at the ends of the carrying pole beam, the upper anchor box and the lower anchor box are fixed to the carrying pole beam through opposite-pulling anchor rods, the upper anchor box is used for being connected with hoisting equipment, and the lower anchor box is used for being connected with a cofferdam to be lowered. When the anchor boxes are installed on the carrying pole beam, the distance between the anchor boxes on the two sides can be adjusted according to needs, then the anchor boxes are fixed through the opposite-pulling anchor rods, cofferdams of different specifications can be adapted, meanwhile, the lifting point of the lifting equipment and the lifting point of the cofferdams coincide up and down, when the cofferdams are lifted, the end of the carrying pole beam basically does not bear bending moment during lifting, and the lifting efficiency is improved. The cofferdam has the advantages of being simple in design, small in welding amount, convenient to disassemble in structure, high in pouring efficiency and large in lateral rigidity.

Description

Technical Field

[0001] The present application relates to the technical field of cofferdam construction, and in particular to a rigid hanging system for a hanging box cofferdam. Background Art

[0002] When constructing the bridge foundation, especially the high pile foundation, a hanging box cofferdam is required. The cofferdam is supported on the top of the steel casing by setting up a hanging system and does not need to be sunk below the riverbed. Compared with the sunken cofferdam, the hanging box cofferdam significantly reduces the draft of the cofferdam, and is more suitable for construction in deep water and bare rock environments. At the same time, it can reduce the amount of steel used in temporary structures and save manufacturing costs.

[0003] Among the related technologies, a cofferdam hanging system and method with the authorization announcement number CN110606430B relates to the field of cofferdam construction technology. It combines the hoisting and lowering systems, facilitates the conversion of hoisting points, and has high construction efficiency. However, the hanging system has problems such as complex design, large welding volume, inconvenient structural disassembly, low reverse use efficiency, and low lateral stiffness. For example, the hanging system requires welding a lifting lug on the shoulder beam for connecting the lifting equipment. The lifting lug not only affects the adjustment of the installation distance of the anchor beams at both ends, but also requires the anchor beam and the lifting lug to be installed in a staggered manner, resulting in a large bending moment at the end of the shoulder beam during lifting, which increases the risk of cofferdam deformation during lifting.

[0004] Therefore, it is necessary to study and improve the above structure and provide a rigid hanging system for the hanging box cofferdam in order to achieve a more practical purpose. Summary of the invention

[0005] The embodiment of the present application provides a rigid hanging system for a hanging box cofferdam to solve the problems of the hanging system in the related art, such as complex design, large amount of welding, inconvenient structural disassembly, low reverse use efficiency and low lateral stiffness.

[0006] The embodiment of the present application provides a rigid hanging system for a hanging box cofferdam, comprising:

[0007] shoulder pole beam;

[0008] An anchor box, comprising an upper anchor box and a lower anchor box located at the end of the shoulder beam, the upper anchor box and the lower anchor box are fixed to the shoulder beam by tension anchor rods, the upper anchor box is used to connect the lifting equipment, and the lower anchor box is used to connect the cofferdam to be lowered.

[0009] In some embodiments, a support beam is mounted on the steel casing to support the shoulder beam, and the support beam includes a distribution beam located at the top of the steel casing, and reaction seats are arranged at both ends of the distribution beam and abut against the wall of the steel casing.

[0010] In some embodiments, the shoulder beam includes at least two longitudinal beams arranged side by side, and a cross brace connecting two adjacent longitudinal beams, and the anchor box is arranged at both ends of the longitudinal beam.

[0011] In some embodiments, the longitudinal beam is formed by splicing two or more box-section beams side by side, and the cross brace is perpendicular to the longitudinal beam.

[0012] In some embodiments, the upper anchor box includes an anchor box body for connecting the tension anchor rod, and an ear plate disposed on the anchor box body and used for installing a pin shaft, and the upper anchor box and the lower anchor box have the same structure.

[0013] In some embodiments, the upper anchor box and the lower anchor box are arranged symmetrically, the anchor box body is provided with anchor rod holes penetrating from top to bottom, and the ear plate is provided with an annular reinforcement plate.

[0014] In some embodiments, symmetrically arranged limit clamps are provided on both upper and lower sides of the shoulder pole beam, and the limit clamps are used to limit the upper anchor box and the lower anchor box.

[0015] In some embodiments, a sling is connected to the upper anchor box, and the sling includes an upper connecting plate for connecting to a lifting rope on a floating crane, and a lower connecting plate arranged on the upper connecting plate for connecting to the upper anchor box.

[0016] In some embodiments, the upper connecting plates are symmetrically arranged, a stiffening plate is connected between two adjacent upper connecting plates, the lower connecting plates are distributed along the length direction of the upper connecting plates, and annular reinforcement plates are arranged on both the upper connecting plates and the lower connecting plates.

[0017] In some embodiments, the cofferdam is provided with lifting ears, and the cofferdam is connected to the lower anchor box through the lifting ears.

[0018] The beneficial effects of the technical solution provided by this application include:

[0019] An embodiment of the present application provides a rigid hanging system for a hanging box cofferdam. Since the anchor box includes an upper anchor box and a lower anchor box located at the end of a shoulder beam, the upper anchor box and the lower anchor box are fixed to the shoulder beam by tension anchor rods. The upper anchor box is used to connect the lifting equipment, and the lower anchor box is used to connect the cofferdam to be lowered.

[0020] Therefore, when installing the anchor box on the shoulder pole beam, the distance between the anchor boxes on both sides can be adjusted as needed and then fixed by the tension anchor rods, which can adapt to cofferdams of different specifications. Compared with the hanging system in the related art, the shoulder pole beam is not provided with a lifting lug, which will not limit the installation range of the anchor box.

[0021] At the same time, in the present application, the upper anchor box is used to connect the lifting equipment, and the lower anchor box is used to connect the cofferdam to be lowered, so that the lifting point of the lifting equipment and the lifting point of the cofferdam overlap each other, so that when the cofferdam is lifted, the end of the shoulder beam is basically not subjected to bending moment during lifting, reducing the risk of deformation of the cofferdam during lifting;

[0022] Moreover, the anchor box serves as a connecting piece for connecting the upper and lower parts, and when combined with the shoulder pole beam, it has the advantages of simple overall structure and easy replacement. At the same time, it also meets the lateral stiffness during lifting. The hanging system of the present application has the advantages of simple design, small welding amount, easy structural disassembly, high reusability and greater lateral stiffness. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0025] Figure 2 A top view of the structure of an embodiment of the present application;

[0026] Figure 3 This is a schematic structural diagram of a support beam according to an embodiment of the present application;

[0027] Figure 4 This is a schematic structural diagram of an upper anchor box according to an embodiment of the present application;

[0028] Figure 5 This is a schematic diagram of the structure of the tension anchor rod according to an embodiment of the present application;

[0029] Figure 6 This is a schematic diagram of the structure of a limit clamping plate according to an embodiment of the present application;

[0030] Figure 7 A schematic diagram of the structure of the sling according to an embodiment of the present application;

[0031] Figure 8 This is a schematic diagram of the structure of the lifting lug of an embodiment of the present application;

[0032] Fig. 9 This is an implementation example of the present application. Figure 1 ;

[0033] Fig.10 This is an implementation example of the present application. Figure 2 .

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. Shoulder pole beam; 11. Longitudinal beam; 12. Horizontal brace; 13. Cofferdam side plate; 14. Steel casing; 2. Anchor box; 21. Anchor box; 22. Ear plate; 23. Pin shaft; 24. Anchor rod hole; 3. Tension anchor rod; 4. Limiting clamp plate; 5. Lifting ear; 6. Lifting device; 61. Upper connecting plate; 62. Lower connecting plate; 63. Stiffening plate; 64. Floating crane; 65. Lifting rope; 7. Support beam; 71. Distribution beam; 72. Reaction seat; 8. Bottom sealing concrete. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] The embodiment of the present application provides a rigid hanging system for a hanging box cofferdam, which can solve the problems of the hanging system in the related art, such as complex design, large amount of welding, inconvenient structural disassembly, low reverse use efficiency and low lateral stiffness.

[0038] See also Figures 1 to 10 As shown, the embodiment of the present application provides a rigid hanging system for a hanging box cofferdam, comprising:

[0039] Shoulder pole beam 1;

[0040] The anchor box 2 includes an upper anchor box and a lower anchor box located at the end of the shoulder beam 1. The upper anchor box and the lower anchor box are fixed to the shoulder beam 1 by tension anchor rods 3. The upper anchor box is used to connect the lifting equipment, and the lower anchor box is used to connect the cofferdam to be lowered.

[0041] An anchor box 2 is provided on the shoulder beam 1 of the rigid hanging system for the hanging box cofferdam in the embodiment of the present application for connecting the lifting equipment and the cofferdam to be lowered. Specifically, the anchor box 2 includes an upper anchor box and a lower anchor box located at the end of the shoulder beam 1, and the upper anchor box and the lower anchor box are fixed to the shoulder beam 1 by tension anchor rods 3. The upper anchor box is used to connect the lifting equipment, and the lower anchor box is used to connect the cofferdam to be lowered.

[0042] In the hoisting preparation stage, when installing the anchor box 2 on the shoulder pole beam 1, the distance between the anchor boxes 2 on both sides can be adjusted as needed and then fixed by the tension anchor rods 3, which can adapt to cofferdams of different specifications. Compared with the hanging system in the related art, the shoulder pole beam 1 does not need to be welded with the lifting lug 5, which will not limit the installation range of the anchor box 2;

[0043] At the same time, in the present application, the upper anchor box is used to connect the lifting equipment, and the lower anchor box is used to connect the cofferdam to be lowered, so that the lifting point of the lifting equipment and the lifting point of the cofferdam overlap up and down, so that when the cofferdam is lifted, the end of the shoulder beam 1 is basically not subjected to bending moment during lifting, reducing the risk of deformation of the cofferdam during lifting;

[0044] Moreover, the anchor box 2 serves as a connecting piece for connecting the upper and lower parts, and when combined with the shoulder pole beam 1, has the advantages of simple overall structure and easy replacement. At the same time, it also meets the lateral stiffness during lifting, so that the hanging system of the present application has the advantages of simple design, small welding amount, easy structural disassembly, high reusability and greater lateral stiffness.

[0045] In some alternative embodiments: See Figure 3 As shown, an embodiment of the present application provides a rigid hanging system for a hanging box cofferdam, the rigid hanging system for a hanging box cofferdam also includes a support beam 7 mounted on a steel casing 14 for supporting a shoulder beam 1, the support beam 7 includes a distribution beam 71 located at the top of the steel casing 14, and reaction seats 72 arranged at both ends of the distribution beam 71 and abutting against the wall of the steel casing 14.

[0046] The support beam 7 of the embodiment of the present application is welded by a distribution beam 71 and a reaction seat 72. The distribution beam 71 is a box-section beam welded by steel plates or steel sections, which directly bears the load transmitted by the shoulder beam 1. The reaction seat 72 is a bracket structure welded by steel plates, which is welded on the wall surface of the steel casing 14 to ensure that the load on the distribution beam 71 is evenly transmitted to the steel casing 14.

[0047] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a rigid hanging system for a hanging box cofferdam, wherein the shoulder beam 1 of the rigid hanging system for the hanging box cofferdam comprises at least two longitudinal beams 11 arranged side by side, and a cross brace 12 connecting two adjacent longitudinal beams 11, and the anchor boxes 2 are arranged at both ends of the longitudinal beams 11.

[0048] The shoulder pole beam 1 of the embodiment of the present application is mainly composed of two welded parts, a longitudinal beam 11 and a cross brace 12, wherein the longitudinal beam 11 is a box-section beam welded from steel sections, and its span corresponds to the spacing between the cofferdam side plates 13, and its end is connected to the cofferdam side plates 13 by setting an anchor box 2 to transfer the vertical component of the cofferdam load, and its plane position corresponds to the top surface of the steel casing 14, and the overall structure of the shoulder pole beam 1 is supported by the support beam 7 erected on the top of the steel casing 14.

[0049] In addition, the cross braces 12 are arranged in pairs between two adjacent longitudinal beams 11. The cross braces 12 are support structures formed by welding steel pipes. Their main function is to withstand the lateral force generated during the lifting process to avoid deformation of the cofferdam during the lifting process.

[0050] During the cofferdam hoisting stage, the shoulder pole beam 1 serves as the internal support of the distribution beam 71 and the cofferdam side plate 13 for hoisting, so that the cofferdam side plate 13 is subjected to balanced force as a whole and the deformation of the cofferdam side plate 13 is reduced. When the cofferdam hoisting is completed, the shoulder pole beam 1 is used to transfer the load of the entire cofferdam to ensure the safety of subsequent construction.

[0051] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a rigid hanging system for a hanging box cofferdam, wherein the longitudinal beam 11 of the rigid hanging system for a hanging box cofferdam is formed by splicing two or more box-section beams side by side, and the cross brace 12 is perpendicular to the longitudinal beam 11.

[0052] The longitudinal beam 11 of the embodiment of the present application is formed by two or more box-section beams spliced ​​side by side, which can improve the overall bearing capacity. The cross brace 12 is perpendicular to the longitudinal beam 11, ensuring that the cross brace 12 can stably withstand the lateral component generated during the lifting process and avoid deformation of the cofferdam during the lifting process. It should be noted that the shoulder beam 1, as the main load-bearing component, can change the bearing capacity of the suspension system in the transverse direction by modularly increasing or decreasing the number of box-section beams or replacing the cross-sectional height of the box-section beams.

[0053] In some alternative embodiments: See Figure 4 and Figure 5 As shown, the embodiment of the present application provides a rigid hanging system for a hanging box cofferdam, wherein the upper anchor box of the rigid hanging system for the hanging box cofferdam comprises an anchor box body 21 for connecting the tension anchor rod 3, and an ear plate 22 arranged on the anchor box body 21 and used for installing the pin shaft 23, and the upper anchor box and the lower anchor box have the same structure;

[0054] The upper anchor box and the lower anchor box are arranged symmetrically. An anchor rod hole 24 penetrating from top to bottom is arranged on the anchor box body 21 , and an annular reinforcement plate is arranged on the ear plate 22 .

[0055] The upper anchor box and the lower anchor box of the embodiment of the present application have the same structure. The upper anchor box includes an anchor box body 21 and an ear plate 22 welded to the anchor box body 21, and a pin shaft 23 is installed on the ear plate 22. The anchor box body 21 is a multi-box section beam welded by steel sections, and an anchor rod hole 24 is opened on its flange for inserting the tension anchor rod 3. Its main function is to bear and disperse the tension transmitted by the ear plate 22 and the pressure transmitted by the tension anchor rod 3.

[0056] Pin holes are provided on the ear plates 22 and annular reinforcing plates are welded at the pin holes. The ear plates 22 on the upper anchor box mainly function to connect the slings 6, and the ear plates 22 on the lower anchor box mainly function to connect the slings 6 to transfer the vertical load of the cofferdam.

[0057] The pin 23 is a cylindrical structure made of alloy steel. When the ear plate 22 is connected to the lifting ear 5 or the ear plate 22 is connected to the hanger 6, the pin 23 serves as the main force transmission component. After the construction is completed, the connection between the cofferdam side plate 13 and the rigid hanging system can be quickly released by disassembling the pin 23.

[0058] In addition, the tension anchor rod 3 connecting the upper anchor box and the lower anchor box is made of finely rolled threaded steel. When in use, it is passed through the anchor rod holes 24 of the upper anchor box and the lower anchor box, and the upper anchor box and the lower anchor box are fixed to the ends of the shoulder pole beam 1 by tensioning. The main function of the tension anchor rod 3 is to stably fix the upper anchor box and the lower anchor box on the shoulder pole beam 1 by pre-stressing, so as to ensure that the load is effectively transferred to the shoulder pole beam 1.

[0059] In some alternative embodiments: See Figure 5 and Figure 6 As shown, an embodiment of the present application provides a rigid hanging system for a hanging box cofferdam, wherein the shoulder beam 1 of the rigid hanging system for a hanging box cofferdam is provided with symmetrically arranged limit plates 4 on the upper and lower sides, and the limit plates 4 are used to limit the upper anchor box and the lower anchor box.

[0060] The limiting card plate 4 in the embodiment of the present application is a triangular structure welded by steel plates. The limiting card plate 4 is welded to the end of the shoulder beam 1 and is used to determine the positions of the upper anchor box and the lower anchor box. The limiting card plate 4 can withstand the horizontal load transmitted by the anchor box 2, and play a limiting role on the overall structure of the anchor box 2, thereby avoiding shear damage to the tension anchor rod 3.

[0061] In some alternative embodiments: See Figure 7 As shown, the embodiment of the present application provides a rigid hanging system for a hanging box cofferdam, wherein a hanging device 6 is connected to an upper anchor box of the rigid hanging system for a hanging box cofferdam, and the hanging device 6 comprises an upper connecting plate 61 for connecting a lifting rope 65 on a floating crane 64, and a lower connecting plate 62 arranged on the upper connecting plate 61 for connecting the upper anchor box;

[0062] The upper connecting plates 61 are symmetrically arranged, and a stiffening plate 63 is connected between two adjacent upper connecting plates 61 . The lower connecting plates 62 are distributed along the length direction of the upper connecting plates 61 , and an annular reinforcing plate is arranged on both the upper connecting plates 61 and the lower connecting plates 62 .

[0063] The sling 6 of the embodiment of the present application is mainly composed of three welded parts: an upper connecting plate 61, a lower connecting plate 62 and a stiffening plate 63. The upper connecting plate 61 and the lower connecting plate 62 are both welded by a steel plate with pin holes and an annular reinforcement plate; wherein the pin holes on the upper connecting plate 61 can be used to connect the lifting rope 65 of the floating crane 64, and the pin holes on the lower connecting plate 62 are used to connect the ear plate 22 on the upper anchor box.

[0064] During the cofferdam hoisting process, the hoisting device 6 connects the lifting rope 65 and the anchor box 2 to transfer the load of the cofferdam hoisting to the floating crane 64. When the hoisting process is completed, the lifting rope 65 of the floating crane 64 is removed and the hoisting device 6 can be stopped.

[0065] In some alternative embodiments: See Figure 8 As shown, an embodiment of the present application provides a rigid hanging system for a hanging box cofferdam, wherein the rigid hanging system for a hanging box cofferdam is provided with a lifting lug 5 on the cofferdam, and the cofferdam is connected to a lower anchor box via the lifting lug 5 .

[0066] The lifting lug 5 of the embodiment of the present application is a structure composed of a steel plate welded on the cofferdam side plate 13, and the lifting lug 5 mainly serves to connect the lifting lug 5 on the lower anchor box and distribute the load to the cofferdam side plate 13. Specifically, the lug plate 22 can be manufactured together with the cofferdam side plate 13 structure, and its setting position is determined according to the position of the shoulder beam 1.

[0067] See also Figures 1 to 10 As shown, the embodiment of the present application also provides a construction method for a rigid hanging system for a hanging box cofferdam, and the construction method comprises the following steps:

[0068] S1. Process and manufacture the shoulder beam 1, anchor box 2, tension anchor rod 3, limit clamp plate 4, lifting lug 5, sling 6, support beam 7 and other structures in the factory. Among them, the lifting lug 5 needs to be processed and manufactured together with the cofferdam side plate 13. Then, the shoulder beam 1 with the limit clamp plate 4 welded at the end is connected to the anchor box 2 as a whole through the tension anchor rod 3. After the cofferdam side plate 13 is processed, it is connected to the lifting lug 5 with a pin 23 to complete the installation of the rigid hanging system. At the same time, it is necessary to install the support beam 7 on the steel casing 14 at the construction site, and install the sling 6 on the lifting cable 65 of the floating crane 64.

[0069] S2, connect the sling 6 connected to the floating crane 64 with the anchor box 2 on the rigid hanging system through the pin shaft 23. After the preparation work is completed, the cofferdam structure installed with the rigid hanging system is hoisted as a whole by the floating crane 64, and the cofferdam structure is transported to the vicinity of the steel casing 14, and the cofferdam is slowly lowered along the steel casing 14 at the designed position, and finally the shoulder beam 1 is supported on the support beam 7 installed on the top of the steel casing 14, and the cofferdam hoisting process is completed.

[0070] S3, release the connection between the lifting device 6 and the anchor box 2 or the lifting cable 65, the floating crane 64 quits work, and the construction of the foundation begins. At this time, the cofferdam is completely loaded by the rigid hanging system to the steel casing 14. After the bottom sealing concrete 8 is poured, the connection between the anchor box 2 and the lifting lug 5 on the cofferdam side plate 13 is released, and the support system composed of the shoulder beam 1 and the anchor box 2 is removed to complete the construction of the hanging box cofferdam.

[0071] The rigid hanging system of the embodiment of the present application has the following advantages:

[0072] 1. Integrated design of the cofferdam hoisting structure and the cofferdam hanging system. Large-sized box cofferdams used in bridge projects often require the design of a separate hoisting structure to avoid deformation of the structure during hoisting. The present invention innovatively adopts an anchor box structure, which can easily transform the cofferdam hoisting state into the cofferdam supporting state; at the same time, the shoulder beam 1 in the support system is used as a hoisting structure to effectively support the cofferdam side plate 13 and avoid its deformation, so that the force during the cofferdam hoisting process is more uniform. The integrated design saves the amount of steel used in the temporary structure and simplifies the design of the temporary structure.

[0073] 2. The anchor box 2 and the tension anchor rod 3 are used as the main connection structure, making the structure easy to disassemble. As a separate module, the anchor box 2 is connected to the shoulder beam 1 by the tension anchor rod 3, which reduces the amount of welding on the construction site. Compared with welding, this connection method can facilitate the adjustment of the number and cross-sectional height of the shoulder beam 1, reduce the generation of waste, and improve the utilization efficiency of materials. At the same time, the anchor box 2 structure of the support system can be moved and adjusted along the axis direction of the shoulder beam 1 to meet the needs of cofferdams of different sizes, expanding the scope of application of the rigid hanging system.

[0074] 3. The connection between the rigid hanging system and the floating crane 64 and the cofferdam is flexible and highly efficient. The hanging device 6 of the floating crane 64 and the anchor box 2 are connected by a pin 23. After the hanging is in place, the connection between the floating crane 64 and the hanging system can be released by pulling out the pin 23, which is convenient for the floating crane 64 to carry out the construction and hanging of the next cofferdam. Similarly, after the foundation is poured, the connection between the cofferdam and the hanging system can be released by pulling out the pin 23, which is convenient for the shoulder beam 1, anchor box 2, support beam 7 and other structures to be used in the construction of the next hanging box cofferdam.

[0075] 4. The components of the rigid hanging system are simple to manufacture, highly versatile, and easy to design in a modular manner. The cofferdam support system with different bearing capacity requirements can be adjusted by changing the cross-sectional height of the shoulder beam 1, or by using anchor boxes 2 of different widths and different numbers of longitudinal beams 11. After the commonly used support system components are made into standard parts, the construction personnel can determine the number of each component of the support system by looking up the table, which is convenient for on-site construction.

[0076] 5. The rigid hanging system and the cofferdam are connected by a pin 23, which increases the lateral rigidity of the support system. Compared with the traditional method of directly using a precision-rolled threaded steel hanger rod, the pin 23 connection can provide greater lateral rigidity and help the cofferdam side plate 13 withstand greater horizontal loads.

[0077] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0078] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0079] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A rigid hanging system for a hanging box cofferdam, characterized in that: include: Shoulder pole beam (1); An anchor box (2), the anchor box (2) comprising an upper anchor box and a lower anchor box located at the end of the shoulder beam (1), the upper anchor box and the lower anchor box being fixed to the shoulder beam (1) via tension anchor rods (3), the upper anchor box being used to connect to a lifting device, and the lower anchor box being used to connect to a cofferdam to be lowered.

2. The rigid hanging system for a hanging box cofferdam according to claim 1, characterized in that: It also includes a support beam (7) mounted on the steel casing (14) for supporting the shoulder beam (1), wherein the support beam (7) includes a distribution beam (71) located at the top of the steel casing (14), and reaction seats (72) arranged at both ends of the distribution beam (71) and abutting against the wall surface of the steel casing (14).

3. The rigid hanging system for a hanging box cofferdam according to claim 1, characterized in that: The shoulder beam (1) comprises at least two longitudinal beams (11) arranged side by side, and a cross brace (12) connecting two adjacent longitudinal beams (11), and the anchor box (2) is arranged at both ends of the longitudinal beam (11).

4. The rigid hanging system for a hanging box cofferdam according to claim 3, characterized in that: The longitudinal beam (11) is formed by splicing two or more box-section beams side by side, and the cross brace (12) is perpendicular to the longitudinal beam (11).

5. The rigid hanging system for a hanging box cofferdam according to claim 1, characterized in that: The upper anchor box comprises an anchor box body (21) for connecting the tension anchor rod (3), and an ear plate (22) arranged on the anchor box body (21) and used for installing a pin shaft (23). The upper anchor box and the lower anchor box have the same structure.

6. The rigid hanging system for a hanging box cofferdam according to claim 5, characterized in that: The upper anchor box and the lower anchor box are arranged symmetrically, the anchor box body (21) is provided with anchor rod holes (24) penetrating vertically, and the ear plate (22) is provided with an annular reinforcement plate.

7. The rigid hanging system for a hanging box cofferdam according to claim 1, characterized in that: The upper and lower sides of the shoulder pole beam (1) are both provided with symmetrically arranged limiting clamping plates (4), and the limiting clamping plates (4) are used to limit the positions of the upper anchor box and the lower anchor box.

8. The rigid hanging system for a hanging box cofferdam according to claim 1, characterized in that: The upper anchor box is connected to a sling (6), and the sling (6) comprises an upper connecting plate (61) for connecting to a lifting rope (65) on a floating crane (64), and a lower connecting plate (62) arranged on the upper connecting plate (61) for connecting to the upper anchor box.

9. The rigid hanging system for a hanging box cofferdam according to claim 8, characterized in that: The upper connecting plates (61) are symmetrically arranged, a stiffening plate (63) is connected between two adjacent upper connecting plates (61), the lower connecting plates (62) are distributed along the length direction of the upper connecting plates (61), and an annular reinforcing plate is arranged on both the upper connecting plates (61) and the lower connecting plates (62).

10. The rigid hanging system for a hanging box cofferdam according to claim 1, characterized in that: A lifting lug (5) is provided on the cofferdam, and the cofferdam is connected to the lower anchor box via the lifting lug (5).

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