Construction method of internal partition wall of subway building and fabricated internal partition wall

Abstract

The invention discloses an internal partition wall construction method of a subway building and a fabricated internal partition wall. The construction method comprises the steps that the ceiling height of an equipment area is obtained; constructing a core mold framework of the internal partition wall; the wall body below the height of the suspended ceiling of the equipment area is subjected to guniting and plastering; pipeline installation is conducted in partition wall holes of the wall body above the ceiling height of the equipment area; and filling gaps in the partition wall holes with a steel wire mesh, and performing guniting and plastering on the wall body above the height of the suspended ceiling in the equipment area. According to the technical scheme, the pipeline installation procedure is organically fused into the wall forming process, and collaborative operation of the pipeline installation procedure and the wall forming process is achieved; by means of the homogeneous material one-time forming technology, traditional heterogeneous material plugging is fundamentally replaced, the high-place operation difficulty can be reduced, the secondary procedure is avoided, the construction efficiency can be improved, the integrity of the wall is guaranteed, and the hole plugging quality and long-term reliability are fundamentally improved.

Description

Technical Field

[0001] This application relates to the field of construction technology, specifically to a construction method for interior partition walls in subway buildings and a prefabricated interior partition wall. Background Technology

[0002] As subway construction increasingly demands "green, rapid, and prefabricated" construction, the traditional block partition wall construction method, which requires multiple processes such as rebar binding, formwork, pouring, and masonry, has inherent limitations such as poor construction continuity, low efficiency, and difficulty in controlling flatness. Its application in the subway field is becoming increasingly problematic.

[0003] Especially in the complex environment of subway equipment areas where multiple disciplines work together, pipeline openings are densely distributed above the ceiling (e.g., 2.4 meters) and above. The traditional construction method of "pre-reserving openings and sealing them later" involves reserving openings and constructing lintels during wall construction, and then sealing them with dissimilar materials such as rock wool and fireproof boards after pipeline installation. This method not only makes sealing at high altitudes inconvenient and difficult, but also creates a sequential process between wall construction and pipeline sealing, significantly lengthening the construction cycle. Furthermore, the dissimilar material sealing system has poor synergy with the masonry wall, making it difficult to guarantee the durability and integrity of the sealing. If the openings need to be removed or modified later, it will further exacerbate quality and structural risks.

[0004] To address the aforementioned technical challenges, this application proposes a segmented, integrated construction scheme for interior partition walls in subway buildings. Specifically, using the ceiling height of the equipment area as a boundary, after the lower wall is formed, pipelines are pre-installed in the upper wall area. Subsequently, the wall plastering material itself simultaneously seals the holes and applies plaster. This method organically integrates the pipeline installation process into the wall forming process, achieving collaborative operation between the two. Through a one-time molding process using homogeneous materials, it fundamentally replaces the traditional method of sealing with dissimilar materials. This not only helps reduce the difficulty of working at heights and avoid secondary processes but also improves construction efficiency, ensures the integrity of the wall, and fundamentally improves the quality and long-term reliability of hole sealing. Summary of the Invention

[0005] In view of this, in a first aspect, this application proposes a method for constructing interior partition walls in subway buildings, the method comprising: Obtain the ceiling height of the equipment area; Construct the core mold framework for the interior partition walls; The walls below the ceiling height of the equipment area are sprayed with plaster. Pipelines are installed in the partition wall openings above the ceiling height of the equipment area. The gaps in the partition wall holes were filled with wire mesh, and the walls above the ceiling height of the equipment area were sprayed with plaster.

[0006] Preferably, the core mold frame for constructing the interior partition wall includes: Install the top and bottom joists and connectors for the interior partition walls; Assemble the core formwork material of the interior partition wall and assemble the core formwork material into the channel of the top and bottom keel.

[0007] Preferably, before installing pipelines in the partition wall openings above the ceiling height of the equipment area, the method further includes: Cut the core formwork material in the wall above the ceiling height of the equipment area to leave the partition wall opening.

[0008] A further preferred embodiment involves filling the gaps within the partition wall openings with wire mesh, comprising: A first wire mesh is installed around the opening of the partition wall hole, and the first wire mesh includes a first opening. The opening of the first wire mesh faces the inner side of the opening of the partition wall hole, and the first wire mesh is fastened to the periphery of the partition wall hole; The wires in the first wire mesh are tied to the wires in the wall surrounding the partition wall opening to fill the gaps in the partition wall opening.

[0009] More preferably, the pipeline installation is carried out in the partition wall opening above the ceiling height of the equipment area, including: If the current partition wall opening contains multiple pipelines, then confirm whether the spacing between two adjacent pipelines in the current partition wall opening meets the first preset condition; If the first preset condition is met, then the two adjacent pipelines will be installed in the current partition wall opening; If the first preset condition is not met, the two adjacent pipelines will be installed in different partition wall holes.

[0010] More preferably, if the first preset condition is met, the method includes: Confirm whether the spacing between two adjacent pipelines meets the second preset condition; If the second preset condition is met, the gaps in the partition wall holes are filled with the second wire mesh. If the second preset condition is not met, the gaps in the partition wall holes are filled using the inner core mold material of the wall and the second wire mesh.

[0011] Further optimization: The second wire mesh includes: a second opening and a connecting portion; Filling the gaps in the partition wall openings with a second wire mesh includes: A second wire mesh is installed between two adjacent pipelines, with the opening of the second wire mesh facing the inner side of the partition wall opening to be overlapped, and the connecting part of the second wire mesh is located between the two adjacent pipelines. The steel wire in the second opening is tied to the steel wire in the wall surrounding the partition hole.

[0012] Further optimization: The second wire mesh includes: a second opening and a connecting portion; Filling the gaps in the partition wall openings using the inner core mold material and the second wire mesh includes: A second wire mesh is installed between two adjacent pipelines. The opening of the second wire mesh faces the inner side of the partition wall opening to be overlapped. The connecting part of the second wire mesh is located between two adjacent pipelines, and the core material in the wall is extended to the space between the two adjacent pipelines. The wires binding the second opening in the second wire mesh are connected to the wires in the wall surrounding the partition wall opening.

[0013] More preferably, before applying spray plaster to the walls above the ceiling height of the equipment area, the method further includes: A reinforcing mesh is installed around the partition wall opening to reinforce the connection between the first wire mesh and the wires in the wall surrounding the partition wall opening.

[0014] Secondly, this application also provides a prefabricated interior partition wall, which is constructed by the construction method described in the first aspect above.

[0015] This application provides a method for constructing interior partition walls in subway buildings. First, the walls below the equipment area ceiling height are spray-painted. Then, pipelines are installed in the walls above the equipment area ceiling height. Finally, the walls above the equipment area ceiling height are spray-painted again. This is a segmented, integrated construction scheme for subway building interior partition walls. Specifically, using the equipment area ceiling height as a boundary, after the lower wall is formed, pipelines are pre-installed in the upper wall area. Subsequently, the spray-painting material itself simultaneously seals holes and plasters the walls. This method organically integrates the pipeline installation process into the wall forming process, achieving collaborative operation between the two. Through a one-time molding process using homogeneous materials, it fundamentally replaces the traditional method of sealing with heterogeneous materials. This not only helps reduce the difficulty of working at heights and avoid secondary processes but also improves construction efficiency, ensures the integrity of the walls, and fundamentally improves the quality and long-term reliability of hole sealing.

[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application, and the illustrative embodiments and descriptions thereof are used to explain this application. In the drawings: Figure 1 A schematic diagram of a construction method for the interior partition wall of a subway building according to a preferred embodiment of this application; Figure 2 A schematic diagram illustrating the sealing of a pipeline within a partition wall opening, as per a preferred embodiment of this application; Figure 3 This is a schematic diagram of sealing two pipelines inside a partition wall opening, which is a preferred embodiment of this application.

[0018] Reference numerals: 1-Partition wall opening; 2-First wire mesh; 21-First opening; 3-Reinforcing mesh; 4-Second wire mesh; 41-Second opening; 42-Connecting part. Detailed Implementation

[0019] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] In the first aspect, the construction method for interior partition walls in subway buildings described in this application is applied within subway buildings, such as... Figure 1 As shown, the method includes steps 110-150: Step 110: Obtain the ceiling height of the equipment area; Specifically, the required ceiling height for equipment areas typically varies across different application scenarios. For example, some subway stations have a ceiling height of 2.4 meters for their equipment areas, while others with better space conditions have a ceiling height of 2.6 meters. Therefore, this application first determines the required ceiling height for the equipment areas based on the design scenario, and then proceeds with construction in sections according to that ceiling height.

[0021] Step 120: Construct the core mold framework for the interior partition walls; Specifically, this application uses prefabricated interior partition walls as the wall structure. Prefabricated interior partition walls are a type of lightweight wall structure formed in two stages, characterized by their light weight, high strength, and excellent fire resistance and sound insulation.

[0022] Before constructing the core formwork framework for the interior partition wall, measurement and layout are required. Based on the design drawings and on-site layout, determine the installation positions of the top and bottom joists for the interior partition wall. Then, at these positions, install the top and bottom joists and related connectors (such as vertical joist supports, corner connectors, T-connectors, etc.), assemble the core formwork material, and fit it into the grooves of the top and bottom joists. During installation, ensure that the panels are inserted vertically into the grooves, with the bottom tightly fitting against the bottom joist groove and the top embedded in the top joist groove, and the left and right seams aligned. Avoid forced compression that could damage or deform the panels. Panels can be tightly joined using mortise and tenon joints, caulking strips, or connecting clips to improve overall integrity and sealing.

[0023] Step 130: Apply spray plaster to the walls below the ceiling height in the equipment area; Specifically, taking the ceiling height of the equipment area as the boundary, the walls below the ceiling height of the equipment area are first sprayed with plaster, and the mortar on the upper part of the plastered wall is roughened to form a rough surface. When plastering the walls above the ceiling height of the equipment area later, the new mortar is embedded in the pit and will not slide along the old interface after drying shrinkage.

[0024] Step 140: Install pipelines in the partition wall openings above the ceiling height of the equipment area; Specifically, to avoid repeated wall demolition and alteration, this application, when the wall below the equipment area ceiling height has already been plastered, will first install pipelines in the wall above the equipment area ceiling height. Before installation, the opening size of partition wall hole 1 needs to be verified according to the requirements of each discipline. The required disciplines depend on the actual application scenario. For example, in subway construction, it may involve ventilation and air conditioning, water supply and drainage, power lighting, passenger information systems, automatic fire alarm systems, building automation systems, communications, signaling, security doors, and other disciplines. During installation, the core formwork material is cut in the wall above the equipment area ceiling height to leave partition wall hole 1, and then the pipelines are installed in partition wall hole 1.

[0025] This application allows for confirmation of the size and location of the partition wall opening 1 before the wall plastering work, facilitating temporary adjustments to the opening and reducing project waste.

[0026] Step 150: Fill the gaps in the partition wall holes with wire mesh and spray-paint the walls above the ceiling height of the equipment area. Specifically, after the pipelines are installed, the walls above the ceiling height in the equipment area are sprayed with plaster.

[0027] Understandably, after drilling a hole in the partition wall, the hole will generally be slightly larger than the pipe to facilitate installation. Therefore, when plastering around the hole, it is necessary to consider filling the gap between the hole and the pipe.

[0028] Based on this, combined Figure 2-3As shown, this application installs a first wire mesh 2 around the opening 1 of the partition wall. The wires in the first wire mesh 2 are tied to the wires in the wall surrounding the opening 1, thus filling the gap between the partition wall opening 1 and the pipeline. During the overlap, since the core molds inside the wall are different, the corresponding core mold wire mesh size is also different. Therefore, the mesh size of the first wire mesh 2 needs to be consistent with the mesh size of the core mold wire mesh frame in the wall. At the same time, the wire diameter of the first wire mesh can be selected according to the wall height. Finally, the wall above the ceiling height of the equipment area is sprayed with plaster and the gaps are sealed.

[0029] In one embodiment, the first wire mesh 2 includes a first opening 21. The opening of the first opening 21 faces the inner side of the partition wall opening 1, forming a snap-fit ​​connection between the first wire mesh 2 and the periphery of the partition wall opening 1. After snap-fitting, the opening 21 of the first wire mesh 2 overlaps with the wall surrounding the partition wall opening 1. The wires of the first wire mesh 2 are tied to the wires in the wall surrounding the partition wall opening 1 within the overlapping portion. Finally, the wall above the ceiling height of the equipment area is sprayed with plaster to seal the gap between the partition wall opening 1 and the installed pipelines.

[0030] If the partition wall opening 1 is rectangular, there can be four first wire meshes 2, each set on one of the four sides of the opening 1. The cross-section of the first wire mesh 2 is U-shaped, and its bottom surface is the thickness of the wall to be covered. If the partition wall opening 1 is of other shapes, the shape and number of first wire meshes 2 can be designed according to the shape of the partition wall opening 1, which is also within the scope of protection of this application.

[0031] In addition, in practical applications, there may be situations where multiple pipelines are placed in a single partition wall opening, so it is also necessary to consider filling the gaps between these pipelines.

[0032] In one implementation, if the current partition wall opening includes multiple pipelines according to the existing planning design, it is first necessary to confirm whether the design is feasible and whether multiple pipelines can be installed in the current partition wall opening 1. That is, to confirm whether the spacing between two adjacent pipelines meets the first preset condition. If the first preset condition is met, it means that the pipelines that meet the condition can be installed in the current partition wall opening 1; if the first preset condition is not met, it means that these pipelines cannot be installed in one partition wall opening according to the current design, and it is necessary to open another partition wall opening next to the current partition wall opening to install the two adjacent pipelines in different partition wall openings.

[0033] The first preset condition can be set according to parameters such as hole size, pipeline size, and wire diameter. In a specific embodiment, the first preset condition is that the distance between adjacent pipelines is less than the shorter side length of the partition wall hole.

[0034] If it has been confirmed that two adjacent pipelines can be installed in the currently opened partition wall opening 1, then it is also confirmed whether the spacing between the two adjacent pipelines meets the second preset condition in order to implement different filling methods.

[0035] The aforementioned second preset condition can also be set according to parameters such as hole size, pipeline size, and wire diameter. In a specific embodiment, the second preset condition is that the distance between adjacent pipelines is less than 10cm.

[0036] If the second preset condition is met, indicating that the gap between two adjacent pipelines is small, then only the second wire mesh 4 needs to be used to fill the gap in the partition wall opening 1. That is, only the second wire mesh 4 is installed between two adjacent pipelines. The second wire mesh 4 includes not only an opening 41 but also a connecting part 42. The connecting part 42 is located between two adjacent pipelines, and the opening of the opening 41 faces the inner side of the partition wall opening 1 to be overlapped. The wires binding the opening 41 of the second wire mesh and the wires in the surrounding wall of the partition wall opening 1 are then used for shotcreting to fill the hole.

[0037] If the second preset condition is not met, it indicates that the gap between the two adjacent pipelines is too large. It is necessary to simultaneously fill the gap in the partition wall opening 1 using both the wall core material and the second wire mesh 4. That is, not only does the second wire mesh 4 need to be installed between the two adjacent pipelines (as described above), but the core material in the wall also needs to be extended to the space between the two adjacent pipelines. The wires at the second opening 41 of the second wire mesh 4 are tied to the wires in the wall surrounding the partition wall opening 1. In other words, in the existing wall, the core material pre-reserved in the core frame cavity is used as a finishing layer, extending to the space between adjacent pipelines. Simultaneously, the second wire mesh 4 is installed between the adjacent pipelines, the wires are tied, and then plaster is applied. This is equivalent to first filling the large gaps with new wall film material, and then filling the smaller gaps with the second wire mesh 4.

[0038] If the gap between adjacent pipes in a partition wall opening 1 is rectangular, the second connecting part 42 of the second wire mesh 4 can be correspondingly set as a rectangle, the width of which is the width of the gap to be covered. If the gap is of other shapes, the shape of the second connecting part 42 can be set according to the shape of the gap, which is also within the protection scope of this application.

[0039] Based on the above steps, in this application, after preliminary plastering and spraying of the walls below the ceiling height in the equipment area, the internal core frame of the wall is relatively difficult to damage. Therefore, the "lower half" of the inner partition wall can form a protective layer during cross-operations. After the bidding and other procedures for the partition wall openings in the "upper half" wall are completed, the "upper half" wall can be constructed. This method of sealing wall openings is a one-time process with the wall structure, eliminating the need for traditional methods of filling with fireproof boards or using extended methods to seal the openings. The sealing effect and the overall fire resistance of the wall are both better.

[0040] Of course, whether a single pipeline is installed in one partition wall opening 1 or multiple pipelines are installed in one partition wall opening 1, the first wire mesh 2 can be used to overlap around the partition wall opening 1. If a second wire mesh 4 is also installed in the partition wall opening 1, the second wire mesh 4 can be overlapped with the first wire mesh 2.

[0041] Preferably, the overlap width between the first wire mesh 2 and the wall wire mesh shall not be less than 10cm. This length can be consistent with the length set in the second preset condition.

[0042] In addition, to further enhance the strength of the lapped steel wires, this application also provides a reinforcing mesh 3 around the partition wall opening 1 to reinforce the connection between the first steel wire mesh 2 and the steel wires in the wall surrounding the partition wall opening 1.

[0043] After step 130, when it is necessary to fix the inner partition wall to the external structure, including the top slab and bottom surface, the end of the inner partition wall can be fixed to the external structure first using nails, and then the steel bars of the inner partition wall can be inserted into the external structure to form further fixation. In a specific embodiment, the diameter of the inserted steel bars is not less than 6mm, and the insertion depth is not less than 15 times the diameter of the steel bars themselves.

[0044] This application provides a method for constructing interior partition walls in subway buildings. First, the walls below the equipment area ceiling height are spray-painted. Then, pipelines are installed in the walls above the equipment area ceiling height. Finally, the walls above the equipment area ceiling height are spray-painted again. This is a segmented, integrated construction scheme for subway building interior partition walls. Specifically, using the equipment area ceiling height as a boundary, after the lower wall is formed, pipelines are pre-installed in the upper wall area. Subsequently, the spray-painting material itself simultaneously seals holes and plasters the walls. This method organically integrates the pipeline installation process into the wall forming process, achieving collaborative operation between the two. Through a one-time molding process using homogeneous materials, it fundamentally replaces the traditional method of sealing with heterogeneous materials. This not only helps reduce the difficulty of working at heights and avoid secondary processes but also improves construction efficiency, ensures the integrity of the walls, and fundamentally improves the quality and long-term reliability of hole sealing.

[0045] In a second aspect, this application also provides a prefabricated interior partition wall, which is constructed using the interior partition wall construction method of the subway building described in the first aspect above.

[0046] Other preferred embodiments of this application in the second aspect, the technical problems they solve, and the technical effects they achieve are the same as those in the first aspect, and will not be repeated here.

[0047] The preferred embodiments of this application have been described in detail above. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0048] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

[0049] Furthermore, various different embodiments of this application can be combined in any way, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed by this invention.

Claims

1. A method for constructing an interior partition wall of a subway building, applied to the subway building, characterized in that, The construction method comprises: acquiring a height of a suspended ceiling of a device area; constructing a core mold framework of an inner partition wall; performing gunning and plastering on a wall below the height of the suspended ceiling of the device area; performing pipeline installation in a partition hole (1) of the wall above the height of the suspended ceiling of the device area; filling a gap in the partition hole (1) with a steel mesh and performing gunning and plastering on the wall above the height of the suspended ceiling of the device area.

2. The construction method according to claim 1, characterized in that, The core mold framework of the inner partition wall comprises: installing a top-and-bottom batten and a connecting piece of the inner partition wall; assembling a core mold plate in a channel of the top-and-bottom batten.

3. The construction method according to claim 1, characterized in that, Before the pipeline installation in the partition hole (1) of the wall above the height of the suspended ceiling of the device area, the method further comprises: cutting the core mold plate in the wall above the height of the suspended ceiling of the device area to leave the partition hole (1).

4. The construction method according to claim 1, characterized in that, The filling of the gap in the partition hole (1) with the steel mesh comprises: arranging a first steel mesh (2) around an opening of the partition hole (1), the first steel mesh (2) comprising a first opening part (21); the opening direction of the first steel mesh (2) being toward an inner side of the opening of the partition hole (1), the first steel mesh (2) being connected to the wall around the partition hole (1) in a snap-fit manner; binding the steel wires of the first steel mesh (2) to the steel wires of the wall around the partition hole (1) to fill the gap in the partition hole (1).

5. The construction method according to claim 4, characterized in that, The pipeline installation in the partition hole (1) of the wall above the height of the suspended ceiling of the device area comprises: if the current partition hole (1) comprises multiple pipelines, determining whether the interval between two adjacent pipelines in the current partition hole (1) meets a first preset condition; if the first preset condition is met, installing the two adjacent pipelines in the current partition hole (1); if the first preset condition is not met, installing the two adjacent pipelines in different partition holes (1).

6. The construction method according to claim 5, characterized in that If the first preset condition is met, the method further comprises: determining whether the interval between the two adjacent pipelines meets a second preset condition; if the second preset condition is met, filling the gap in the partition hole (1) with a second steel mesh (4); if the second preset condition is not met, filling the gap in the partition hole (1) with a core mold material in the wall and the second steel mesh (4).

7. The construction method according to claim 6, wherein: the second steel mesh (4) comprises a second opening part (41) and a connecting part (42); the filling of the gap in the partition hole (1) with the second steel mesh (4) comprises: arranging the second steel mesh (4) between the two adjacent pipelines, the opening direction of the second steel mesh (4) being toward the inner side of the opening of the partition hole (1) that needs to be overlapped, and the connecting part (42) of the second steel mesh being arranged between the two adjacent pipelines; binding the steel wires of the second opening part (41) to the steel wires of the wall around the partition hole (1).

8. The construction method according to claim 6, wherein: The second wire mesh (4) comprises a second opening part (41) and a connecting part (42); The gap in the partition hole (1) is filled with a core mold material and the second wire mesh (4), comprising: A second wire mesh (4) is arranged between two adjacent pipelines, the opening direction of the second wire mesh (4) is towards the inner side of the partition hole (1) opening which needs to be overlapped, the connecting part (42) of the second wire mesh is arranged between the two adjacent pipelines, and the core mold material in the wall is extended to between the two adjacent pipelines; The steel wires of the second opening part (41) of the second wire mesh (4) are bound with the steel wires in the wall around the partition hole (1).

9. The construction method according to any one of claims 1 to 8, characterized in that, Before the wall above the equipment area is sprayed and plastered, the method further comprises: A reinforcing mesh (3) is arranged around the partition hole (1) to reinforce and connect the first wire mesh (2) and the steel wires in the wall around the partition hole (1).

10. A fabricated interior partition, characterized by The prefabricated interior partition wall is built by the construction method according to any one of the preceding claims 1-9.

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