A prefabricated and assembled retaining wall mold and its usage method

Abstract

The present invention provides a prefabricated and assembled retaining wall mold and a using method thereof, including: The outer mold includes an outer arc-shaped steel plate and an outer stepped plate. The side of the outer arc-shaped steel plate and the side of the outer stepped plate are connected by a first connecting plate. An outer support part is fixedly connected to the outer wall of the outer arc-shaped steel plate, and a hollowing mechanism is fixedly connected to the inner wall of the outer mold; The inner mold includes an inner arc-shaped steel plate and an inner stepped plate. The side wall of the inner arc-shaped steel plate and the side of the inner stepped plate are connected by a second connecting plate. Side templates are fixedly connected to both sides of the inner mold. The side wall of one side template abuts against the inner wall of the outer arc-shaped steel plate, and the other side template abuts against the inner wall of the outer stepped plate. A support mechanism is fixedly connected to the bottom of the side of the inner mold away from the outer mold, and a bottom mold part is arranged at the bottom of the side wall of the inner mold facing the outer mold. The present invention achieves: By using a prefabricated mold to manufacture the retaining wall, the structural strength of the retaining wall is ensured, the weight of the retaining wall is reduced, the produced retaining wall is a split structure, which is convenient to transport the prefabricated retaining wall to the construction site, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of the construction technology of the retaining wall for manually dug piles, and particularly relates to a prefabricated and assembled retaining wall mold and a using method thereof. Background Art

[0002] In recent years, with the continuous improvement of the voltage level of transmission lines and the continuous optimization of basic design, dug foundations such as dug foundations and excavated foundations that make full use of the performance of undisturbed soil and are economical and environmentally friendly have gradually become the main types of transmission line tower foundations. During the construction of manually dug piles, the traditional method is to excavate a section of soil body, pour a section of concrete retaining wall, and remove the formwork to excavate the next section of soil body after the strength reaches the requirements. The intermediate interval time during the construction process is relatively long, and due to the existence of groundwater, the cast-in-place retaining wall is damaged before the strength is formed, which is likely to cause safety accidents such as collapse of the hole. Therefore, the current construction of manually dug piles has problems such as long construction period, poor quality of the retaining wall, and potential safety and quality hazards such as easy collapse of the hole. The prefabricated and assembled retaining wall can avoid this problem. To solve the problems of the prefabricated and assembled retaining wall in the aspects of production and casting forming, it is necessary to propose a prefabricated and assembled retaining wall mold. Summary of the Invention

[0003] The purpose of the present invention is to provide a prefabricated and assembled retaining wall mold and a using method thereof to solve the above problems, achieving the effects that the retaining wall is manufactured through a prefabricated mold by the present invention, ensuring the structural strength of the retaining wall, reducing the weight of the retaining wall, the produced retaining wall is of a split structure, facilitating the transportation of the prefabricated retaining wall to the construction site, and reducing the labor intensity of workers.

[0004] To achieve the above purpose, the present invention provides the following solutions: including: an outer mold, the outer mold includes an outer arc-shaped steel plate and an outer stepped plate, the side of the outer arc-shaped steel plate and the side of the outer stepped plate are connected by a first connecting plate, an outer support part is fixedly connected to the outer wall of the outer arc-shaped steel plate, and a hollowing mechanism is fixedly connected to the inner wall of the outer mold;

[0005] an inner mold, the inner mold includes an inner arc-shaped steel plate and an inner stepped plate, the side wall of the inner arc-shaped steel plate and the side of the inner stepped plate are connected by a second connecting plate, side templates are respectively fixedly connected to both sides of the inner mold, the side wall of one side template abuts against the inner wall of the outer arc-shaped steel plate, the other side template abuts against the inner wall of the outer stepped plate, a support mechanism is fixedly connected to the bottom of the side of the inner mold away from the outer mold, an armrest part is arranged on the side of the side template, and a bottom mold part is arranged at the bottom of the side wall of the inner mold facing the outer mold;

[0006] The outer mold and the inner mold are detachably connected by a fixing component.

[0007] Preferably, the outer stepped plate and the inner stepped plate have the same shape, and the distance between the outer stepped plate and the inner arc-shaped steel plate and the distance between the inner stepped plate and the outer arc-shaped steel plate are half of the distance between the outer arc-shaped steel plate and the inner arc-shaped steel plate.

[0008] Preferably, the outer support portion includes a plurality of vertical steel plates, and the plurality of vertical steel plates are fixedly connected at equal intervals to the side of the outer arc-shaped steel plate away from the inner arc-shaped steel plate.

[0009] Preferably, the hollowing mechanism includes a plurality of protruding square plates, and the plurality of protruding square plates are arranged in two rows up and down, and the plurality of protruding square plates are fixedly connected at equal intervals to the inner wall of the outer arc-shaped steel plate, and the side of the protruding square plate away from the outer arc-shaped steel plate abuts against the inner arc-shaped steel plate.

[0010] Preferably, the support mechanism includes a transverse connecting rod, the transverse connecting rod is fixedly connected to the bottom of the inner arc-shaped steel plate away from the outer arc-shaped steel plate, and one ends of two longitudinal connecting rods are fixedly connected to the circumferential side wall of the transverse connecting rod, and the other ends of the two longitudinal connecting rods are fixedly connected to the bottom of the side wall of the inner arc-shaped steel plate.

[0011] Preferably, the handrail portion includes two handrails, and the two handrails are respectively fixedly connected to the central positions of the side edges of the two side formworks.

[0012] Preferably, the fixing assembly includes a plurality of first bolt holes formed in the outer arc-shaped steel plate and the outer stepped plate and a plurality of second bolt holes formed in the inner arc-shaped steel plate and the inner stepped plate. The plurality of first bolt holes and the plurality of second bolt holes are in one-to-one correspondence in position, and a plurality of bolts penetrate through the first bolt holes and the second bolt holes to detachably connect the outer formwork and the inner formwork.

[0013] Preferably, the bottom formwork portion includes a bottom formwork, one side of the bottom formwork is fixedly connected to the bottom of the side wall of the inner formwork, and the other side of the bottom formwork abuts against the bottom of the side wall of the outer formwork.

[0014] Preferably, a pouring cavity is formed between the outer formwork and the inner formwork, and a steel bar framework is further arranged in the pouring cavity through a support assembly.

[0015] A using method of a prefabricated and assembled retaining wall mold includes the following steps:

[0016] S1. Install the steel bar framework: Place the steel bar framework into the pouring cavity and connect the support assembly and the steel bar framework;

[0017] S2. Install the inner formwork and the outer formwork: Install the fixing assembly on the outer formwork and adjust the fixing assembly to connect the inner formwork;

[0018] S3. Pour concrete: Pour concrete into the pouring cavity and vibrate it.

[0019] S4. Demold: Remove the fixing components for demolding.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects: The outer mold and the inner mold are connected as a whole through the fixing components, and a pouring cavity is formed between the outer mold and the inner mold. The inner cavity width at the positions of the outer stepped plate and the inner stepped plate in the pouring cavity is smaller. The hollowing mechanism in the pouring cavity can make the formed retaining wall present a porous structure, reducing the overall weight of the retaining wall. The outer support part is provided to support the outer arc-shaped steel plate to ensure that the outer arc-shaped steel plate will not be deformed. The support mechanism provided on the inner film is used to place the assembled mold vertically and can make the top opening of the pouring cavity face upward, facilitating pouring. The side formwork and the bottom formwork part are provided to seal the two sides and the bottom of the inner mold and the outer mold, ensuring that the cement slurry poured into the pouring cavity will not flow out from the gap between the inner mold and the outer mold. The handrail part is provided to facilitate the handling of the overall mold. After the production of the retaining wall is completed, the sides of the retaining walls produced by three such molds can be connected by bolts to form a cylindrical retaining wall. The present invention realizes the production of the retaining wall through a prefabricated mold, ensures the structural strength of the retaining wall, reduces the weight of the retaining wall, and the produced retaining wall is a split structure, facilitating the transportation of the prefabricated retaining wall to the construction site and reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0022] Figure 1 It is a schematic structural diagram of a prefabricated and assembled retaining wall mold of the present invention;

[0023] Figure 2 It is a schematic structural diagram of the steel bar framework in the present invention;

[0024] Figure 3 It is a schematic structural diagram of the retaining wall after installation in the present invention;

[0025] Figure 4 It is a schematic structural diagram of the cement support in the present invention;

[0026] Figure 5 It is a schematic structural diagram of the bottom formwork in the third embodiment of the present invention;

[0027] Among them, 1. Outer arc-shaped steel plate; 2. Outer stepped plate; 3. First connecting plate; 4. First bolt hole; 5. Inner arc-shaped steel plate; 6. Inner stepped plate; 7. Side formwork; 8. Second bolt hole; 9. Bolt; 10. Vertical steel plate; 11. Raised square plate; 12. Transverse connecting rod; 13. Longitudinal connecting rod; 14. Handrail; 15. Bottom formwork; 16. Pouring cavity; 17. Steel bar cage; 18. Cement support; 19. Second connecting plate. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Embodiment 1:

[0031] Referring to Figures 1-3 As shown, the present invention provides a prefabricated and assembled retaining wall mold and its use method, including: an outer mold, the outer mold includes an outer arc-shaped steel plate 1 and an outer stepped plate 2, the side of the outer arc-shaped steel plate 1 and the side of the outer stepped plate 2 are connected by a first connecting plate 3, an outer support portion is fixedly connected to the outer wall of the outer arc-shaped steel plate 1, and a hollowing mechanism is fixedly connected to the inner wall of the outer mold;

[0032] An inner mold, the inner mold includes an inner arc-shaped steel plate 5 and an inner stepped plate 6, the side wall of the inner arc-shaped steel plate 5 and the side of the inner stepped plate 6 are connected by a second connecting plate 19, side formworks 7 are respectively fixedly connected to both sides of the inner mold, the side wall of one side formwork 7 abuts against the inner wall of the outer arc-shaped steel plate 1, the other side formwork 7 abuts against the inner wall of the outer stepped plate 2, a support mechanism is fixedly connected to the bottom of the side of the inner mold away from the outer mold, a handrail portion is provided on the side of the side formwork 7, and a bottom mold portion is provided at the bottom of the side wall of the inner mold facing the outer mold;

[0033] The outer mold and the inner mold are detachably connected by a fixing component.

[0034] The set outer mold and inner mold are connected into a whole through a fixing component, and a pouring cavity 16 is formed between the outer mold and the inner mold. The inner cavity width at the positions of the outer stepped plate 2 and the inner stepped plate 6 in the pouring cavity 16 is smaller. The hollowing mechanism located in the pouring cavity 16 can make the formed retaining wall present a porous structure, reducing the overall weight of the retaining wall. The set outer support part is used to support the outer arc-shaped steel plate 1 to ensure that the outer arc-shaped steel plate 1 will not deform. The support mechanism arranged on the inner membrane is used to place the assembled mold vertically and can make the top opening of the pouring cavity 16 face upward, facilitating pouring. The set side formwork 7 and bottom mold part are used to seal the two sides and the bottom surface of the inner mold and the outer mold, ensuring that the cement slurry poured into the pouring cavity 16 will not flow out from the gap between the inner mold and the outer mold. The set handrail part facilitates the handling of the overall mold. As Figure 3 shown, after the production of the retaining wall is completed, the sides of the retaining walls produced by three such molds can be connected by bolts 9 to form a cylindrical retaining wall. The present invention realizes the production of the retaining wall through a prefabricated mold, ensures the structural strength of the retaining wall, reduces the weight of the retaining wall, and the produced retaining wall is of a split structure, facilitating the transportation of the prefabricated retaining wall to the construction site and reducing the labor intensity of workers.

[0035] In a further optimized scheme, the outer stepped plate 2 and the inner stepped plate 6 have the same shape, and the distance between the outer stepped plate 2 and the inner arc-shaped steel plate 5 and the distance between the inner stepped plate 6 and the outer arc-shaped steel plate 1 are half of the distance between the outer arc-shaped steel plate 1 and the inner arc-shaped steel plate 5.

[0036] The set outer stepped plate 2 and inner stepped plate 6 form steps on both sides of the formed retaining wall by changing the wall thickness on both sides of the pouring cavity 16. After the corresponding steps on both sides of the two retaining walls overlap, they can be connected by bolts 9. After the three sides of the retaining walls are connected to each other, a cylindrical retaining wall is formed.

[0037] In a further optimized scheme, the outer support part includes a plurality of vertical steel plates 10, and the plurality of vertical steel plates 10 are fixedly connected to the side of the outer arc-shaped steel plate 1 away from the inner arc-shaped steel plate 5 at equal intervals.

[0038] The set vertical steel plates 10 are fixedly connected to the outer wall of the outer arc-shaped steel plate 1 at equal intervals, ensuring the structural strength of the outer arc-shaped steel plate 1, and the outer arc-shaped steel plate 1 will not deform during the pouring and forming process.

[0039] In a further optimized scheme, the hollowing mechanism includes a plurality of raised square plates 11. The plurality of raised square plates 11 are arranged in two rows up and down, and the plurality of raised square plates 11 are fixedly connected to the inner wall of the outer arc-shaped steel plate 1 at equal intervals. The side of the raised square plate 11 away from the outer arc-shaped steel plate 1 abuts against the inner arc-shaped steel plate 5.

[0040] On the other side of several protruding square plates 11 provided on the inner wall of the outer arc-shaped steel plate 1, they are in contact with the inner mold. Such a setting ensures that there are several through holes in the formed retaining wall. The retaining wall with through holes can reduce the overall weight of the retaining wall while ensuring the structural strength, realizing the lightweight of the retaining wall and facilitating the later installation of the retaining wall by manual labor.

[0041] In a further optimized solution, the support mechanism includes a transverse connecting rod 12. The transverse connecting rod 12 is fixedly connected to the bottom of the inner arc-shaped steel plate 5 on the side away from the outer arc-shaped steel plate 1. One ends of two longitudinal connecting rods 13 are fixedly connected to the circumferential side wall of the transverse connecting rod 12, and the other ends of the two longitudinal connecting rods 13 are fixedly connected to the bottom of the side wall of the inner arc-shaped steel plate 5.

[0042] The provided transverse connecting rod 12 and longitudinal connecting rods 13 are both fixedly connected to the bottom of the side wall of the inner mold. Such a setting can increase the contact area between the overall assembled mold and the ground, ensuring that the mold is not easily toppled when placed vertically. At the same time, it can also make the opening direction of the top surface of the pouring cavity 16 face upward, facilitating the operation of filling the mold with materials. The transverse connecting rod 12 and longitudinal connecting rods 13 provided on the inner mold can also ensure the stiffness of the inner mold to a certain extent and ensure that the inner mold does not deform.

[0043] In a further optimized solution, the handrail part includes two handrails 14, and the two handrails 14 are respectively fixedly connected to the central positions on the side edges of the two side templates 7.

[0044] The provided handrails 14 facilitate the operator to carry the overall mold.

[0045] In a further optimized solution, the fixing component includes several first bolt holes 4 opened on the outer arc-shaped steel plate 1 and the outer stepped plate 2, and several second bolt holes 8 opened on the inner arc-shaped steel plate 5 and the inner stepped plate 6. The positions of the several first bolt holes 4 and the several second bolt holes 8 correspond one by one. Several bolts 9 pass through the first bolt holes 4 and the second bolt holes 8 to detachably connect the outer mold and the inner mold.

[0046] After the several first bolt holes 4 and the several second bolt holes 8 are connected by bolts 9, it can ensure the tightness of the mold connection before pouring, and can form bolt holes on the formed retaining wall, facilitating the connection of the overlapping parts of the formed retaining walls by bolts 9.

[0047] In a further optimized solution, the bottom mold part includes a bottom template 15. One side of the bottom template 15 is fixedly connected to the bottom of the side wall of the inner mold, and the other side of the bottom template 15 is in contact with the bottom of the side wall of the outer mold.

[0048] The provided bottom template 15 is used to seal the bottom surface of the pouring cavity 16, ensuring that the cement slurry poured into the pouring cavity 16 will not flow out from the bottom of the pouring cavity 16.

[0049] For a further optimized solution, a casting cavity 16 is formed between the outer mold and the inner mold, and a steel bar framework 17 is also arranged in the casting cavity 16 through a support assembly.

[0050] The steel bar framework 17 is arranged in the formed casting cavity 16 through a support assembly, and the steel bar framework 17 ensures sufficient structural strength after the formation of the retaining wall.

[0051] A method for using a prefabricated and assembled retaining wall mold includes the following steps:

[0052] S1. Install the steel bar framework 17: Place the steel bar framework 17 into the casting cavity 16 and connect the support assembly and the steel bar framework 17.

[0053] S2. Install the inner mold and the outer mold: Install the fixing components on the outer mold and adjust the fixing components to connect the inner mold.

[0054] S3. Pour concrete: Pour concrete into the casting cavity 16 and vibrate it.

[0055] S4. Demold: Remove the fixing components to demold.

[0056] The specific usage steps are as follows:

[0057] S1. Hold the handrail 14 of the prefabricated and assembled retaining wall mold and place the prefabricated and assembled retaining wall mold on a flat area of the site.

[0058] S2. Stand the outer mold of the prefabricated and assembled retaining wall mold flat on the ground and install the steel bar framework 17 above the raised square steel plate inside the outer mold.

[0059] S3. Stand the inner mold of the prefabricated and assembled retaining wall mold flat on the ground and initially align the inner mold and the outer mold.

[0060] S4. Prepare the assembly bolts 9 in advance and pass the bolts 9 through the first bolt holes 4 and the second bolt holes 8 reserved in the inner mold and the outer mold.

[0061] S5. After all the bolts 9 pass through the reserved bolt holes and are installed, check whether there are any gaps in the prefabricated and assembled retaining wall mold.

[0062] S6. Pour the concrete to be poured into the prefabricated and assembled retaining wall mold and vibrate it with a vibrating rod.

[0063] S7. Cure the prefabricated and assembled retaining wall mold with the poured concrete.

[0064] S8. After the prefabricated and assembled retaining wall is basically formed, demold the prefabricated and assembled retaining wall mold.

[0065] Embodiment 2:

[0066] AsFigure 4 As shown, the support component for supporting the steel bar framework 17 is a cement support 18, which includes legs and a top surface groove. The groove is provided to accommodate the steel bars used in the steel bar framework 17. The legs of the cement support 18 are placed at the center of the top surface of the raised square plate 11. The two sides of the cement support 18 are in contact with the two opposite inner walls of the pouring cavity 16 to limit the position of the steel bar framework 17. A cavity is left between the two legs at the bottom of the support component, facilitating the entry of cement slurry into the cavity during the pouring process to fix the support to the retaining wall.

[0067] Embodiment 3:

[0068] As Figure 5 shown, the bottom mold part is an independent square bottom plate. The size of the top surface of the bottom plate is larger than the bottom area of the pouring cavity 16. The outer mold and the inner mold are connected to the bottom plate by bolts 9, which can seal the bottom surface of the pouring cavity 16 and enhance the overall anti - overturning ability of the mold.

[0069] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, 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. Therefore, it should not be construed as a limitation to the present invention.

[0070] The above - described embodiments are only descriptions of the preferred modes of the present invention, not limitations on the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A prefabricated and assembled retaining wall mold for producing assembled retaining walls, characterized in that, Comprising: An outer mold, the outer mold includes an outer arc-shaped steel plate (1) and an outer stepped plate (2), the side of the outer arc-shaped steel plate (1) and the side of the outer stepped plate (2) are connected by a first connecting plate (3), an outer support part is fixedly connected to the outer wall of the outer arc-shaped steel plate (1), and a hollowing mechanism is fixedly connected to the inner wall of the outer mold; An inner mold, the inner mold includes an inner arc-shaped steel plate (5) and an inner stepped plate (6), the side wall of the inner arc-shaped steel plate (5) and the side of the inner stepped plate (6) are connected by a second connecting plate (19), side templates (7) are respectively fixedly connected to both sides of the inner mold, the side wall of one side template (7) abuts against the inner wall of the outer arc-shaped steel plate (1), the other side template (7) abuts against the inner wall of the outer stepped plate (2), a support mechanism is fixedly connected to the bottom of the side of the inner mold away from the outer mold, an armrest part is arranged on the side of the side template (7), and a bottom mold part is arranged at the bottom of the side wall of the inner mold facing the outer mold; The outer mold and the inner mold are detachably connected by a fixing component; The outer stepped plate (2) and the inner stepped plate (6) have the same shape, and the distance between the outer stepped plate (2) and the inner arc-shaped steel plate (5) and the distance between the inner stepped plate (6) and the outer arc-shaped steel plate (1) are half of the distance between the outer arc-shaped steel plate (1) and the inner arc-shaped steel plate (5); The outer support part includes a plurality of vertical steel plates (10), and the plurality of vertical steel plates (10) are fixedly connected at equal intervals on the side of the outer arc-shaped steel plate (1) away from the inner arc-shaped steel plate (5); The hollowing mechanism includes a plurality of raised square plates (11), the plurality of raised square plates (11) are arranged in two rows up and down, and the plurality of raised square plates (11) are fixedly connected at equal intervals on the inner wall of the outer arc-shaped steel plate (1), and the side of the raised square plate (11) away from the outer arc-shaped steel plate (1) abuts against the inner arc-shaped steel plate (5).

2. The prefabricated and assembled retaining wall mold according to claim 1, characterized in that: The support mechanism includes a transverse connecting rod (12), the transverse connecting rod (12) is fixedly connected to the bottom of the side of the inner arc-shaped steel plate (5) away from the outer arc-shaped steel plate (1), one ends of two longitudinal connecting rods (13) are fixedly connected to the circumferential side wall of the transverse connecting rod (12), and the other ends of the two longitudinal connecting rods (13) are fixedly connected to the bottom of the side wall of the inner arc-shaped steel plate (5).

3. The prefabricated and assembled retaining wall mold according to claim 1, wherein: The armrest part includes two armrests (14), and the two armrests (14) are respectively fixedly connected to the central positions on the sides of the two side templates (7).

4. The prefabricated and assembled retaining wall mold according to claim 1, characterized in that: The fixing component includes a plurality of first bolt holes (4) opened on the outer arc-shaped steel plate (1) and the outer stepped plate (2) and a plurality of second bolt holes (8) opened on the inner arc-shaped steel plate (5) and the inner stepped plate (6), the positions of the plurality of first bolt holes (4) correspond to the positions of the plurality of second bolt holes (8) one by one, and a plurality of bolts (9) penetrate through the first bolt holes (4) and the second bolt holes (8) to detachably connect the outer mold and the inner mold.

5. A prefabricated and assembled retaining wall mold according to claim 1, characterized in that: The bottom die part includes a bottom die plate (15), one side of the bottom die plate (15) is fixedly connected to the bottom of the inner die side wall, and the other side of the bottom die plate (15) abuts against the bottom of the outer die side wall.

6. A prefabricated and assembled retaining wall mold according to claim 1, characterized in that: A pouring cavity (16) is formed between the outer die and the inner die, and a steel bar framework (17) is further arranged in the pouring cavity (16) through a support assembly.

7. A method for using a prefabricated and assembled retaining wall mold, the prefabricated and assembled retaining wall mold according to claim 6, characterized in that, It includes the following steps: S1. Install the steel bar framework: Place the steel bar framework into the pouring cavity and connect the support assembly and the steel bar framework; S2. Install the inner die and the outer die: Install a fixing assembly on the outer die and adjust the fixing assembly to connect the inner die; S3. Pour concrete: Pour concrete into the pouring cavity and vibrate it; S4. Demold: Remove the fixing assembly for demolding.

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