Concrete module with waterproof structure at horizontal joints and assembly method thereof

Abstract

A concrete module with a waterproof structure at horizontal joints and an assembly method thereof belong to the technical field of prefabricated building modules. In order to solve the problem that the sealing strips of the horizontal joints in traditional prefabricated buildings are exposed to the outside and are easy to fall off as the building is used for a longer time, which seriously affects the safety of the building, the concrete module described in this application includes a top raised plate, a top plate, a rectangular beam frame, four supporting columns and four vertical panels. The top raised plate is arranged at the center of the upper surface of the top plate, and the four supporting columns are respectively arranged at the four corners of the lower surface of the top plate in the vertical direction. Each vertical panel is correspondingly arranged between two adjacent supporting columns. The lower part of the outer side of each vertical panel is provided with an eagle's beak protrusion outward, and the rectangular beam frame is arranged below the vertical panel. This application is mainly used as a concrete splicing module for prefabricated buildings.

Description

Technical Field

[0001] The present invention belongs to the technical field of assembled building modules, and in particular relates to a concrete module with a waterproof structure at a horizontal joint and an assembling method thereof. Background Art

[0002] Modular integrated buildings are an important trend in the industrialization of construction and represent the 4.0 era of prefabricated buildings. The industrial revolution of "factory prefabricated modules + on-site assembly" has also brought new challenges to building performance, especially waterproof performance, which directly affects the life of the building. Existing prefabricated buildings pay more attention to the waterproof treatment of the entire building after assembly, such as painting or attaching waterproof coating on the outer walls of the entire building, and only simple seals are filled at the external joints of the modules, and the seals are all exposed. Compared with the waterproof treatment of the exterior wall, the gap waterproof treatment method is relatively simple and the sealing is relatively weak. In fact, the gaps between the module units are relatively small. Waterproofing is a unique challenge for modular buildings, especially for assembled concrete modules with a pentahedral box structure. Special attention must be paid to waterproofing the horizontal joints when the modules are connected vertically. Traditional joint waterproofing treatment methods cannot meet the waterproofing requirements of such module assembly. Exposed horizontal joint sealing components will gradually fall off under long-term natural conditions such as wind and sun, which poses a huge hidden danger to the building's waterproofness. At the very least, the rooms inside the building will be invaded by rainwater, and at worst, it will directly affect the building's support strength and service life. Therefore, the waterproofing treatment of horizontal joints when building modules are vertically connected should be given special attention. Summary of the Invention

[0003] In order to solve the problem that the sealing strips of the horizontal joints in traditional prefabricated buildings are exposed and easily fall off as the building is used for a long time, seriously affecting the safety of the building, the present invention provides a concrete module with a waterproof structure at the horizontal joints and an assembly method thereof;

[0004] The top of the roof panel is provided with a plurality of support columns, each of which is provided with a plurality of support columns, and the top of the roof panel is provided with a plurality of support columns. The support columns are respectively provided at the four corners of the lower surface of the roof panel in the vertical direction, and the top of each support column is fixedly connected to the lower surface of the roof panel. Each vertical panel is correspondingly provided between two adjacent support columns, and the bottom of each vertical panel is coplanar with the bottom end of the support column. The two ends of each vertical panel are respectively fixedly connected to the side walls of an adjacent support column. The four vertical panels are combined to form a rectangular frame. The rectangular beam frame is provided at the bottom of the rectangular frame, and the upper surface of the rectangular beam frame is fixedly connected to the lower surface of the rectangular frame. The lower part of the outer side of each vertical panel is provided with an eagle's beak convex edge, and the bottom of each eagle's beak convex edge is provided with an extension section extending downward, the length of the extension section is greater than the height of the rectangular beam frame, and a No. 1 sealing gap is provided between the inner ring wall of the rectangular beam frame and the outer ring wall of the top raised plate in the lower concrete module.

[0005] Furthermore, a drip groove is processed on the bottom of the middle extension section of the eagle beak convex edge along the length extension direction of the eagle beak convex edge;

[0006] Furthermore, the two ends of the hawk's beak convex edge located on the long side of the concrete module extend outward to the outside of the adjacent supporting column, and the two ends of the concrete module located on the wide side of the concrete module extend outward to the end of the hawk's beak convex edge adjacent to the long side;

[0007] Furthermore, a No. 1 sealing assembly is provided in the No. 1 sealing gap between the rectangular beam frame and the top raised plate in the lower concrete module, and the No. 1 sealing assembly includes a No. 1 polyethylene sealing rod and a No. 1 waterproof sealing strip. The No. 1 polyethylene sealing rod is arranged at the upper part of the No. 1 sealing gap, and one side of the No. 1 polyethylene sealing rod is in close contact with the inner ring wall of the rectangular beam frame, and the other side of the No. 1 polyethylene sealing rod is in close contact with the outer ring wall of the top raised plate in the lower concrete module. The No. 1 waterproof sealing strip is arranged above the No. 1 polyethylene sealing rod, and the bottom of the No. 1 waterproof sealing strip is bonded and fixed to the top of the No. 1 polyethylene sealing rod, one side of the No. 1 waterproof sealing strip is bonded and fixed to the inner ring wall of the rectangular beam frame, and the other side of the No. 1 waterproof sealing strip is bonded and fixed to the outer ring wall of the top raised plate in the lower concrete module;

[0008] Furthermore, a No. 2 sealing assembly is provided in the No. 2 sealing gap between the support frame and the hawk's beak convex edge in the upper concrete module, and the No. 2 sealing assembly includes a No. 2 polyethylene sealing rod and a No. 2 waterproof sealing strip. The No. 2 polyethylene sealing rod is arranged at the upper part of the No. 2 sealing gap, and one side of the No. 2 polyethylene sealing rod is in close contact with the outer ring wall of the support frame, and the other side of the No. 2 polyethylene sealing rod is in close contact with the inner wall of the hawk's beak convex edge in the upper concrete module. The No. 2 waterproof sealing strip is arranged below the No. 2 polyethylene sealing rod, and the top of the No. 2 waterproof sealing strip is bonded and fixed to the bottom of the No. 2 polyethylene sealing rod, one side of the No. 2 waterproof sealing strip is bonded and fixed to the outer ring wall of the support frame, and the other side of the No. 2 waterproof sealing strip is bonded and fixed to the inner wall of the hawk's beak convex edge in the upper concrete module;

[0009] Furthermore, the rectangular holes formed between each facade panel and the top plate are used to install facade components such as doors and windows;

[0010] A method for assembling concrete modules with a waterproof structure at horizontal joints is achieved by the following steps:

[0011] Step 1: Transport the precast concrete modules produced in the factory to the construction site;

[0012] Step 2: Prepare the foundation of the area where the prefabricated building needs to be arranged according to the pre-designed engineering blueprint;

[0013] Step 3: Stack the multiple concrete modules required to form the prefabricated building one by one according to the construction drawings, and ensure that the rectangular beam frame in the upper concrete module corresponds to the support frame in the lower concrete module, and the position offset does not exceed 3mm;

[0014] Step 4: After stacking two adjacent concrete modules, first place a No. 1 polyethylene sealing rod in the No. 1 sealing gap between the lower concrete module and the upper concrete module. After placing the No. 1 polyethylene sealing rod, bond and secure the No. 1 polyethylene sealing rod to the top raised plate of the lower concrete module and the rectangular beam frame of the upper concrete module using a No. 1 waterproof sealing strip.

[0015] Step 5: After completing the No. 1 sealing gap in step 4, arrange the No. 2 polyethylene sealing rod in the No. 2 sealing gap between the lower concrete module and the upper concrete module. After arranging the No. 2 polyethylene sealing rod, use the No. 2 waterproof sealing strip to bond and fix the No. 2 polyethylene sealing rod to the support frame in the lower concrete module and the extension section of the eagle's beak convex edge in the upper concrete module.

[0016] The beneficial effects of this application compared to the prior art are as follows:

[0017] The present application provides a concrete module with a waterproof structure at horizontal joints; compared with traditional prefabricated concrete modules, an eagle's beak ridge is set at the edge of the module, and the eagle's beak ridge is used to wrap the edge of the rectangular beam frame to provide water-blocking protection at the joint. At the same time, a drip is set at the eagle's beak position to prevent outdoor rainwater from entering the gap and penetrating into the room. In order to further increase the waterproofness of the structure, the structure described in the present application is further provided with two layers of sealing on the basis of the eagle's beak cover. The first layer of sealing protection is set between the rectangular beam frame and the top raised plate. The indoor ground gap is sealed by a polyethylene sealing plate in combination with a sealing strip. The function of the top raised plate is to raise the height of the indoor floor as a whole, so that the indoor floor elevation is higher than the elevation of the joint, further preventing rainwater from entering from the joint. When entering the room, a second layer of sealing protection is set between the rectangular beam frame and the eagle's beak ridge, and the outdoor assembly gap is sealed by a polyethylene sealing plate in combination with a sealing strip to ensure that water flows into the room along the external joints. In summary, this application realizes three-layer waterproofing of assembled buildings by optimizing the module structure and setting a sealing method. First, the eagle's beak ridge keeps water away from the gap between the module splicing, and increases the path for water to flow into the building. The setting of the drip groove further prevents water from entering the assembly gap. Secondly, the indoor and outdoor components are sealed by a double sealing assembly to block the water flow entry path. The lower sealing assembly with the cooperation of the eagle's beak ridge is stably installed and will not be affected by natural conditions such as wind and sun, and its service life is significantly increased. Compared with traditional assembled buildings, the assembled buildings composed of the assembled modules provided by this application are BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an axial schematic diagram of the concrete module described in this application;

[0019] Figure 2 This is a schematic cross-sectional view of the concrete module described in this application;

[0020] Figure 3 This is a schematic diagram of the assembly of the concrete modules described in this application;

[0021] Figure 4 This is a schematic diagram of the joint sealing of the concrete modules described in this application during assembly;

[0022] Figure 5 A schematic diagram of a drip channel in a concrete module described in this application;

[0023] In the figure, 1 is a top raised plate, 2 is a top plate, 3 is a supporting column, 4 is a vertical panel, 5 is an eagle-beak convex edge, 6 is a rectangular beam frame, 7 is a No. 1 polyethylene sealing rod, 8 is a No. 1 waterproof sealing strip, 9 is a No. 2 polyethylene sealing rod, 10 is a No. 2 waterproof sealing strip and 11 is a supporting frame. DETAILED DESCRIPTION

[0024] Specific implementation method 1: Combination Figures 1 to 5 Describe this embodiment. In this embodiment, a concrete module with a waterproof structure at a horizontal joint is provided. The concrete module includes a top raised plate 1, a top plate 2, a rectangular beam frame 6, four supporting columns 3 and four vertical panels 4. The top raised plate 1 is arranged at the center of the upper surface of the top plate 2, and the top raised plate 1 and the top 2 are formed as one piece. The four supporting columns 3 are respectively arranged at the four corners of the lower surface of the top plate 2 in the vertical direction, and the top of each supporting column 3 is fixedly connected to the lower surface of the top plate 2. Each vertical panel 4 is correspondingly arranged between two adjacent supporting columns 3, and each vertical panel 4 has a The bottom is arranged coplanar with the bottom end of the supporting column 3, and the two ends of each vertical panel 4 are respectively fixedly connected to the side walls of an adjacent supporting column 3. The four vertical panels 4 are enclosed into a rectangular frame, and the rectangular beam frame 6 is arranged at the bottom of the rectangular frame, and the upper surface of the rectangular beam frame 6 is fixedly connected to the lower surface of the rectangular frame. An eagle's beak convex edge 5 is provided outwardly at the lower part of the outer side of each vertical panel 4, and an extension section extending downward is provided at the bottom of each eagle's beak convex edge 5. The length of the extension section is greater than the height of the rectangular beam frame 6, and a No. 1 sealing gap is provided between the inner ring wall of the rectangular beam frame 6 and the outer ring wall of the top raised plate 1 in the lower concrete module.

[0025] Specific implementation method 2: Combination Figures 1 to 5 This embodiment differs from the first embodiment in that a support frame 11 is provided circumferentially along the edge of the top surface of the top plate 2. The bottom of the support frame 11 is integrally formed with the top surface of the top plate 2 and corresponds to the rectangular beam frame 6 in the upper concrete module. A second sealing gap is defined between the outer annular wall of the support frame 11 and the inner wall of the extended section of the hawk's beak ridge 5 in the upper concrete module. The remaining components and connection methods are the same as those in the first embodiment.

[0026] In this embodiment, the support frame 11 is mainly used to support the rectangular beam frame 6. On the one hand, it can make up for the height difference between the rectangular beam frame 6 and the top raised plate 1, and on the other hand, it can also increase the stability of the support.

[0027] Specific implementation method three: Combination Figures 1 to 5 This embodiment differs from the second embodiment in that a drip groove 51 is formed at the bottom of the middle extension section of the hawk beak ridge 5 along the longitudinal extension direction of the hawk beak ridge 5. Other components and connection methods are the same as those of the second embodiment.

[0028] In this embodiment, the longitudinal section of the drip groove 51 is a right-angled trapezoid, wherein the hypotenuse is arranged close to the rectangular beam frame 6. When rainwater flows along the outer edge of the eagle's beak to the bottom of the eagle's beak convex edge, it will not enter the assembly joint along the bottom edge, but will drip vertically downward at the position of the drip groove 51 under the influence of the back slope of the hypotenuse, reducing the probability of rainwater entering the assembly joint.

[0029] Specific implementation method four: Combination Figures 1 to 5 This embodiment differs from the third embodiment in that both ends of the hawk's beak ridges 5 on the long sides of the concrete module extend outward to the outside of the adjacent support columns 3, while both ends of the concrete module on the wide sides extend outward to the ends of the hawk's beak ridges 5 adjacent to the long sides. The rest of the components and connection methods are the same as those in the third embodiment.

[0030] So set up, combined with Figure 1 As shown, this arrangement can completely wrap the bottom of the module in the circumferential direction, achieving the purpose of comprehensive waterproofing.

[0031] Specific implementation method five: Combination Figures 1 to 5 This embodiment is described. This embodiment differs from the fourth embodiment in that a first sealing assembly is provided in the first sealing gap between the rectangular beam frame 6 and the top raised plate 1 in the lower concrete module. The first sealing assembly includes a first polyethylene sealing rod 7 and a first waterproof sealing strip 8. The first polyethylene sealing rod 7 is disposed at the upper portion of the first sealing gap, with one side of the first polyethylene sealing rod 7 in close contact with the inner annular wall of the rectangular beam frame 6 and the other side of the first polyethylene sealing rod 7 in close contact with the outer annular wall of the top raised plate 1 in the lower concrete module. The first waterproof sealing strip 8 is disposed above the first polyethylene sealing rod 7, with the bottom of the first waterproof sealing strip 8 bonded and fixed to the top of the first polyethylene sealing rod 7, one side of the first waterproof sealing strip 8 bonded and fixed to the inner annular wall of the rectangular beam frame 6, and the other side of the first waterproof sealing strip 8 bonded and fixed to the outer annular wall of the top raised plate 1 in the lower concrete module. Other components and connection methods are the same as those in the fourth embodiment.

[0032] Specific implementation method six: combination Figures 1 to 5This embodiment is described. This embodiment differs from the fifth embodiment in that a second sealing assembly is provided in the second sealing gap between the support frame 11 and the hawk's beak ridge 5 of the upper concrete module. The second sealing assembly includes a second polyethylene sealing rod 9 and a second waterproof sealing strip 10. The second polyethylene sealing rod 9 is disposed at the upper portion of the second sealing gap, with one side of the second polyethylene sealing rod 9 in close contact with the outer annular wall of the support frame 11, and the other side of the second polyethylene sealing rod 9 in close contact with the inner wall of the hawk's beak ridge 5 of the upper concrete module. The second waterproof sealing strip 10 is disposed below the second polyethylene sealing rod 9, with the top of the second waterproof sealing strip 10 bonded and fixed to the bottom of the second polyethylene sealing rod 9, one side of the second waterproof sealing strip 10 bonded and fixed to the outer annular wall of the support frame 11, and the other side of the second waterproof sealing strip 10 bonded and fixed to the inner wall of the hawk's beak ridge 5 of the upper concrete module. Other components and connection methods are the same as those of the fifth embodiment.

[0033] In combination with the description of specific embodiments five and six, the structure described in the present application is further provided with two layers of sealing on the basis of the eagle's beak cover. The first layer of sealing protection is set between the rectangular beam frame and the top raised plate, and the indoor ground gap is sealed by a polyethylene sealing plate in combination with a sealing strip. The function of the top raised plate is to raise the height of the indoor floor as a whole, so that the indoor ground elevation is higher than the elevation of the joint, further preventing rainwater from entering the room through the joint. A second layer of sealing protection is set between the rectangular beam frame and the eagle's beak raised edge, and the outdoor assembly gap is sealed by a polyethylene sealing plate in combination with a sealing strip, ensuring that water flows into the room along the external joint.

[0034] Specific implementation method seven: combination Figures 1 to 5 This embodiment differs from the sixth embodiment in that the rectangular holes formed between each facade panel 4 and the top panel 2 are used to install facade components such as doors and windows. The other components and connection methods are the same as those of the sixth embodiment.

[0035] Specific implementation method eight: combination Figures 1 to 5 This embodiment provides a method for assembling concrete modules with waterproof structures at horizontal joints, which is implemented by the following steps:

[0036] Step 1: Transport the precast concrete modules produced in the factory to the construction site;

[0037] Step 2: Prepare the foundation of the area where the prefabricated building needs to be arranged according to the pre-designed engineering blueprint;

[0038] Step 3: Stack the multiple concrete modules required to form the prefabricated building one by one according to the construction drawings, and ensure that the rectangular beam frame 6 in the upper concrete module corresponds to the support frame 11 in the lower concrete module, and the position offset does not exceed 3mm;

[0039] Step 4: After stacking two adjacent concrete modules, first arrange the No. 1 polyethylene sealing rod 7 in the No. 1 sealing gap between the lower concrete module and the upper concrete module. After arranging the No. 1 polyethylene sealing rod 7, the No. 1 polyethylene sealing rod 7 is bonded and fixed to the top raised plate 1 of the lower concrete module and the rectangular beam frame 6 of the upper concrete module using the No. 1 waterproof sealing strip 8.

[0040] Step 5: After completing the sealing of the No. 1 gap in step 4, arrange the No. 2 polyethylene sealing rod 9 in the No. 2 sealing gap between the lower concrete module and the upper concrete module. After arranging the No. 2 polyethylene sealing rod 9, the No. 2 polyethylene sealing rod 9 is bonded and fixed to the support frame 11 in the lower concrete module and the extension section of the eagle's beak convex edge 5 in the upper concrete module through the No. 2 waterproof sealing strip 10.

[0041] The present invention has been disclosed as above with reference to preferred embodiments, but this is not intended to limit the present invention. Any technician familiar with the present invention can make slight changes or modifications to equivalent embodiments using the above-disclosed structures and technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A concrete module with a waterproof structure at horizontal joints, characterized by: The concrete module comprises a top raised plate (1), a top plate (2), a rectangular beam frame (6), four supporting columns (3) and four vertical panels (4), wherein the top raised plate (1) is arranged at the center of the upper surface of the top plate (2), and the top raised plate (1) and the top plate (2) are formed integrally, the four supporting columns (3) are respectively arranged at the four corners of the lower surface of the top plate (2) in the vertical direction, and the top of each supporting column (3) is fixedly connected to the lower surface of the top plate (2), each vertical panel (4) is correspondingly arranged between two adjacent supporting columns (3), and the bottom of each vertical panel (4) is coplanar with the bottom end of the supporting column (3). The two ends of each vertical panel (4) are respectively fixedly connected to the side walls of an adjacent supporting column (3), and the four vertical panels (4) are enclosed into a rectangular frame. The rectangular beam frame (6) is arranged at the bottom of the rectangular frame, and the upper surface of the rectangular beam frame (6) is fixedly connected to the lower surface of the rectangular frame. An eagle beak convex edge (5) is provided outwardly at the lower part of the outer side of each vertical panel (4), and an extension section extending downward is provided at the bottom of each eagle beak convex edge (5). The length of the extension section is greater than the height of the rectangular beam frame (6), and a No. 1 sealing gap is provided between the inner ring wall of the rectangular beam frame (6) and the outer ring wall of the top raised plate (1) in the lower concrete module.

2. The concrete module with a waterproof structure at horizontal joints according to claim 1, characterized in that: A support frame (11) is provided along the circumferential direction at the edge of the upper surface of the top plate (2), the bottom of the support frame (11) is integrally formed with the upper surface of the top plate (2), and the support frame (11) is provided corresponding to the rectangular beam frame (6) in the upper concrete module, and a No. 2 sealing gap is provided between the outer ring wall of the support frame (11) and the inner wall of the extension section of the eagle beak convex edge (5) in the upper concrete module.

3. The concrete module with a waterproof structure at horizontal joints according to claim 2, characterized in that: The bottom of the middle extension section of the eagle beak convex edge (5) is processed with a drip groove (51) along the length extension direction of the eagle beak convex edge (5).

4. The concrete module with a waterproof structure at horizontal joints according to claim 3, characterized in that: The two ends of the hawk beak convex edge (5) on the long side of the concrete module extend outward to the outside of the adjacent supporting column (3), and the two ends of the concrete module on the wide side of the concrete module extend outward to the end of the hawk beak convex edge (5) on the adjacent long side.

5. The concrete module with a waterproof structure at horizontal joints according to claim 4, characterized in that: A No. 1 sealing assembly is provided in the No. 1 sealing gap between the rectangular beam frame (6) and the top raised plate (1) in the lower concrete module. The No. 1 sealing assembly includes a No. 1 polyethylene sealing rod (7) and a No. 1 waterproof sealing strip (8). The No. 1 polyethylene sealing rod (7) is arranged at the upper part of the No. 1 sealing gap, and one side of the No. 1 polyethylene sealing rod (7) is in close contact with the inner ring wall of the rectangular beam frame (6), and the other side of the No. 1 polyethylene sealing rod (7) is in close contact with the outer ring wall of the top raised plate (1) in the lower concrete module. The No. 1 waterproof sealing strip (8) is arranged above the No. 1 polyethylene sealing rod (7), and the bottom of the No. 1 waterproof sealing strip (8) is bonded and fixed to the top of the No. 1 polyethylene sealing rod (7). One side of the No. 1 waterproof sealing strip (8) is bonded and fixed to the inner ring wall of the rectangular beam frame (6), and the other side of the No. 1 waterproof sealing strip (8) is bonded and fixed to the outer ring wall of the top raised plate (1) in the lower concrete module.

6. The concrete module with a waterproof structure at horizontal joints according to claim 4, characterized in that: A No. 2 sealing assembly is provided in the No. 2 sealing gap between the support frame (11) and the eagle beak convex edge (5) in the upper concrete module. The No. 2 sealing assembly includes a No. 2 polyethylene sealing rod (9) and a No. 2 waterproof sealing strip (10). The No. 2 polyethylene sealing rod (9) is arranged at the upper part of the No. 2 sealing gap, and one side of the No. 2 polyethylene sealing rod (9) is in close contact with the outer ring wall of the support frame (11), and the other side of the No. 2 polyethylene sealing rod (9) is in close contact with the inner wall of the eagle beak convex edge (5) in the upper concrete module. The No. 2 waterproof sealing strip (10) is arranged below the No. 2 polyethylene sealing rod (9), and the top of the No. 2 waterproof sealing strip (10) is bonded and fixed to the bottom of the No. 2 polyethylene sealing rod (9). One side of the No. 2 waterproof sealing strip (10) is bonded and fixed to the outer ring wall of the support frame (11), and the other side of the No. 2 waterproof sealing strip (10) is bonded and fixed to the inner wall of the eagle beak convex edge (5) in the upper concrete module.

7. The concrete module with a waterproof structure at horizontal joints according to claim 1, characterized in that: The rectangular holes formed between each facade panel (4) and the top plate (2) are used for installing door and window facade components.

8. A method for assembling the concrete module according to any one of claims 1 to 7, the method being implemented by the following steps: Step 1: Transport the precast concrete modules produced in the factory to the construction site; Step 2: Prepare the foundation of the area where the prefabricated building needs to be arranged according to the pre-designed engineering blueprint; Step 3: stack the multiple concrete modules required to form the prefabricated building one by one according to the construction requirements of the construction drawings, and ensure that the rectangular beam frame (6) located in the upper concrete module and the support frame (11) located in the lower concrete module are arranged in a corresponding manner, and the position offset does not exceed 3mm; Step 4: After stacking two adjacent concrete modules, first arrange a No. 1 polyethylene sealing rod (7) in the No. 1 sealing gap between the lower concrete module and the upper concrete module, and after arranging the No. 1 polyethylene sealing rod (7), bond the No. 1 polyethylene sealing rod (7) to the top raised plate (1) in the lower concrete module and the rectangular beam frame (6) in the upper concrete module through a No. 1 waterproof sealing strip (8); Step 5: After the No. 1 sealing gap is completed in step 4, a No. 2 polyethylene sealing rod (9) is arranged in the No. 2 sealing gap between the lower concrete module and the upper concrete module. After the No. 2 polyethylene sealing rod (9) is arranged, the No. 2 polyethylene sealing rod (9) is bonded and fixed to the support frame (11) in the lower concrete module and the extension section of the eagle beak convex edge (5) in the upper concrete module through the No. 2 waterproof sealing strip (10).

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