Waterproof construction template for side wall of subway station

Abstract

The utility model relates to the technical field of side wall waterproofing, in particular to a construction formwork for subway station side wall waterproofing, which comprises a support formwork and a waterproof coiled material adhered to the support formwork, the support formwork is provided with a separation part for separating the support formwork from the waterproof coiled material, and the waterproof coiled material is separated from the support formwork through the cooperation of the support formwork, the separation part and the waterproof coiled material. And two adjacent supporting templates can be connected more tightly.

Description

Technical Field

[0001] The present application relates to the technical field of waterproofing of subway station side walls, and in particular to a construction template for waterproofing of subway station side walls. Background Art

[0002] In the prior art, waterproofing of the side walls of subway stations can be achieved by using waterproof membranes. However, the waterproof properties of the waterproof membranes easily lead to gaps, bubbles or wrinkles between the waterproof membranes and the concrete.

[0003] In the prior art, a layer of mortar is first laid under the waterproof membrane and the construction process is carried out with care and attention to detail to avoid bubbles forming under the waterproof membrane.

[0004] However, the existing technology requires a lot of effort, and bubbles may still appear due to the carelessness of the construction workers. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this application is to provide a construction template for waterproofing the side walls of subway stations. The template is used to construct the waterproofing of the side walls, which can improve the waterproofing effect and is less likely to cause bubbles.

[0006] The above-mentioned application purpose of the present application is achieved through the following technical solutions: a construction template for waterproofing the side wall of a subway station, comprising a supporting template and a waterproof membrane pasted on the supporting template, the supporting template being provided with a detachment piece for detaching the supporting template from the waterproof membrane, a T-shaped connecting plate extending outward from one side of the supporting template and a connecting groove for embedding the connecting plate on the other side, a connecting gap being provided in the connecting groove when two adjacent supporting templates are connected to the connecting plate through the connecting groove, and an elastic band for tightening the two supporting templates being provided between the two adjacent supporting templates.

[0007] By adopting the above technical solution, the waterproof membrane and the construction formwork are supported, so that the waterproof membrane can be poured together during the construction process, and then the waterproof membrane is separated from the supporting formwork through the separation piece, thereby realizing the adhesion of the waterproof membrane and avoiding the generation of bubbles. Because the waterproof membrane and the water-soluble film are set, if the T-slot is tightly connected to the connecting groove, it is easy for the waterproof membrane and the side of the water-soluble film to cause friction, resulting in loose bonding. At the same time, by reserving a connection gap, the water-soluble film and the waterproof membrane are prevented from generating large friction with each other. The setting of the elastic band can make the connection between two adjacent supporting formworks tighter.

[0008] Furthermore, the separation member includes a water-soluble film adhered to the side of the waterproof membrane close to the supporting formwork, and a separation hole is opened on the construction formwork.

[0009] By adopting the above technical solution, water is injected into the separation hole to dissolve the water-soluble film, thereby achieving separation between the supporting formwork and the waterproof membrane, which is convenient and does not affect the connection between the waterproof membrane and the concrete structure wall.

[0010] Furthermore, a filling block is inserted into the release hole.

[0011] By adopting the above technical solution, the supporting formwork is replaced by the replacement block, avoiding the impact caused by the separation hole when pouring concrete.

[0012] Furthermore, the support template is provided with a limiting piece to prevent the filling block from detaching.

[0013] By adopting the above technical solution, the positioning block is limited due to the setting of the limiting member, thereby preventing the positioning block from being separated.

[0014] Furthermore, the limiting member includes a rotating column fixedly inserted into a side of the supporting formwork away from the waterproof membrane and a limiting rod vertically rotatably connected to the rotating column.

[0015] By adopting the above technical solution, the positioning block can be limited by rotating the limiting rod.

[0016] Furthermore, a blind groove is provided in the filling block, a compression spring is embedded in the blind groove, and the limiting rod abuts against the compression spring.

[0017] By adopting the above technical solution, the compensating block can generate an extrusion force through the extrusion spring, making it more difficult to fall off.

[0018] Furthermore, an extrusion plate is provided between the extrusion spring and the limiting rod.

[0019] By adopting the above technical solution, the extrusion plate can make the force of the extrusion spring more uniform.

[0020] Furthermore, the filling block has a positioning plate extending outward from one side of the waterproof membrane and attached to the supporting formwork.

[0021] By adopting the above technical solution, the setting of the positioning plate can prevent the filling block from generating excessive extrusion force on the concrete side wall due to the setting of the extrusion spring.

[0022] Furthermore, a plurality of the escape holes are provided, and a plurality of the filling blocks are provided in the escape holes.

[0023] By adopting the above technical solution, the provision of multiple release holes can make the water-soluble film dissolve faster and demoulding more convenient.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. Through the support formwork and waterproof membrane, the waterproof membrane and the construction formwork can be poured together during the construction process, and then the waterproof membrane and the support formwork can be separated by the separation piece, so that the waterproof membrane can be pasted and the generation of bubbles can be avoided;

[0026] 2. By injecting water into the separation hole, the water-soluble film is dissolved and the support formwork and the waterproof membrane are separated, which is convenient and does not affect the connection between the waterproof membrane and the concrete structure wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the construction template in Example 1;

[0028] Figure 2 yes Figure 1 Partial structural cross-sectional view in;

[0029] Figure 3 yes Figure 2 A magnified view of part A in FIG;

[0030] Figure 4 This is a diagram of the connection state of the construction template in the embodiment;

[0031] Figure 5 yes Figure 4 Enlarged view of part B in .

[0032] Figure numerals: 1. Support template; 10. Rotating column; 11. Limit rod; 12. Disengagement hole; 13. Connecting plate; 14. Connection gap; 2. Waterproof membrane; 3. Disengagement part; 30. Extrusion spring; 31. Extrusion plate; 32. Filling block; 33. Blind groove; 34. Positioning plate; 4. Water-soluble film; 5. Elastic band. DETAILED DESCRIPTION

[0033] The present application is further described in detail below with reference to the accompanying drawings.

[0034] In an embodiment, a large-formwork waterproofing system for a subway station side wall includes an outer waterproofing structure, an inner waterproofing structure, and a construction formwork for constructing the waterproofing structure. The outer waterproofing structure and the inner waterproofing structure are constructed separately through the construction formwork.

[0035] Waterproofing is required during the construction of the side walls of subway stations. In the prior art, waterproofing is performed by applying waterproof membrane 2 or other waterproof coatings on the outer surface of the side walls after the side walls are constructed, but the waterproofing effect is poor.

[0036] In this embodiment, a better waterproof effect is achieved through the double-layer waterproofing of the inner waterproof structure and the outer waterproof structure.

[0037] The so-called internal waterproof structure is to carry out a layer of waterproofing on the side wall before the wall construction. The specific construction method is:

[0038] First, build a construction template, build it on the outside of the side wall and fix it, then pour mortar concrete between the template and the side wall, remove the template after the mortar concrete solidifies, and then lay the waterproof membrane 2, and then build the template again, put in the steel cage, and then carry out reinforced concrete wall construction, and then remove the template and carry out another waterproof construction.

[0039] Because the waterproof property of the waterproof membrane 2 itself is not suitable for being glued to the concrete wall, a method of waterproofing construction through a side wall formwork is designed in this embodiment, and a construction formwork is designed based on this method.

[0040] Specifically, the construction formwork includes a supporting formwork 1 and a waterproof membrane 2 pasted on the supporting formwork 1. A separation piece 3 is provided between the waterproof membrane 2 and the supporting formwork 1. A water-soluble film 4 is pasted on the waterproof membrane 2. The separation piece 3 separates the waterproof membrane 2 from the supporting formwork 1 by injecting water.

[0041] During the specific construction process, after injecting mortar concrete between the formwork and the side wall, the waterproof membrane 2 is directly poured in during the solidification process of the mortar concrete. The pressure on the construction formwork during the concrete pouring process makes the waterproof membrane 2 more secure. At the same time, since this layer of waterproof membrane 2 only needs to be temporarily fixed and the wall needs to be poured on the outside, the mutual extrusion between the wall and the solidified mortar concrete will make the waterproof membrane 2 more secure.

[0042] The disengagement member 3 includes a disengagement hole 12 opened on the supporting formwork 1, a filling block 32 is inserted into the disengagement hole 12, a blind groove 33 is opened in the filling block 32, an extrusion spring 30 is embedded in the blind groove 33, an extrusion plate 31 is provided at the other end of the extrusion spring 30, and a limiting rod 11 is provided on the other side of the extrusion plate 31. The construction formwork is fixedly inserted into a rotating column 10, and the limiting rod 11 is vertically rotated and connected to the rotating column 10.

[0043] The pop-up of the extrusion plate 31 is limited by the limiting rod 11, and the filling block 32 is squeezed by the extrusion plate 31 and the extrusion spring 30, so that the position of the filling block 32 can be kept flat on the supporting formwork 1, without affecting the influence of the supporting formwork 1 detaching from the hole 12 during the pouring process. The filling block 32 extends outward away from the side of the waterproof membrane 2 and is attached to the supporting formwork 1. A positioning plate 34 is provided for limiting the filling block 32. The extrusion spring 30 is placed to squeeze the filling block 32, causing the filling block 32 to protrude outward on one side of the waterproof membrane 2.

[0044] In order to facilitate the connection between two adjacent construction templates, refer to Figure 4A T-shaped connecting plate 13 extends outward from one side of the supporting template 1, and a connecting groove is opened inward on the other side of the supporting template 1. After the connecting plate 13 is embedded in the connecting groove of another supporting template 1, a connecting gap 14 is provided between the connecting plate 13 and the connecting groove to facilitate the connection between the connecting plate 13 and the connecting groove. At the same time, mainly due to the arrangement of the waterproof membrane 2 and the water-soluble film 4, if the T-shaped groove is tightly connected to the connecting groove, it is easy for the side edges of the waterproof membrane 2 and the water-soluble film 4 to generate friction, resulting in loosening of the bonding. At the same time, by reserving the connecting gap 14, the water-soluble film 4 and the waterproof membrane 2 are prevented from generating large friction with each other.

[0045] Reference Figure 5 In order to ensure that the reserved gap does not affect the tightness between the two adjacent support templates 1, an elastic member is connected to the rotating column 10 on the side where the two support templates 1 are close to each other. After the two support templates 1 are connected, the two support templates 1 are connected through the elastic member. In this embodiment, the elastic member is an elastic belt 5.

[0046] The specific construction steps of the construction method of the large formwork waterproofing system of the subway station side wall include: S1: assembling the construction formwork, pasting the waterproof membrane 2 on the supporting formwork 1, inserting the filling block 32 into the disengagement hole 12, and then rotating the limit rod 11 to squeeze the limit rod 11 on the extrusion plate 31 for limiting.

[0047] S2: Build the formwork at one time. The construction formwork is built on the outside of the side wall and fixed. At this time, a space is formed between the construction formwork and the side wall.

[0048] S3: One-time grouting, injecting mortar concrete between the formwork and the wall, waiting for the mortar concrete to solidify, at this time the mortar concrete and the waterproof membrane 2 are poured together.

[0049] S4: The supporting formwork 1 and the waterproof membrane 2 are separated by the separation member 3. The specific separation method is to rotate the limiting rod 11, and then take out the extrusion plate 31, the limiting spring and the filling block 32 from the separation hole 12, and then inject water into the separation hole 12. Since the water-soluble film 4 is bonded between the waterproof membrane 2 and the supporting formwork 1, when the water-soluble film 4 melts, the supporting formwork 1 and the waterproof membrane 2 are separated to achieve demolding.

[0050] S5: Assemble the construction formwork again, the same as step S1; S6: Build the formwork for the second time, build the construction formwork on the outside of the solidified mortar concrete; S7: Place the steel cage and pour concrete; S8: Demould again using the steps of S4, and separate the supporting formwork 1 and the waterproof membrane 2 through the separation piece 3.

[0051] At this time, the entire side wall was waterproofed twice. The waterproofing effect of this waterproofing system is better. At the same time, the construction method of this waterproofing system can make the connection between the waterproof membrane 2 and the concrete tighter and the demoulding more convenient. On the one hand, there will be no wrinkles during the pouring of concrete due to the lack of tight adhesion between the waterproof membrane 2 and the supporting formwork 1, and the demoulding process will not affect the waterproof membrane 2 due to the excessive tight adhesion between the waterproof membrane 2 and the supporting formwork 1, resulting in separation or partial separation between the waterproof membrane 2 and the concrete.

[0052] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A construction template for waterproofing the side wall of a subway station, characterized by: The invention comprises a supporting template (1) and a waterproof coiled material (2) adhered to the supporting template (1); a detaching member (3) for detaching the supporting template (1) from the waterproof coiled material (2) is provided on the supporting template (1); a T-shaped connecting plate (13) is extended outwardly from one side of the supporting template (1); a connecting groove for embedding the connecting plate (13) is provided on the other side; when two adjacent supporting templates (1) are connected to the connecting plate (13) through the connecting groove, a connecting gap (14) is provided in the connecting groove; and an elastic band (5) for tightening the two supporting templates (1) is provided between the two adjacent supporting templates (1).

2. The waterproof construction template for subway station side walls according to claim 1 is characterized in that: The detachment member (3) comprises a water-soluble film (4) adhered to the side of the waterproof coiled material (2) close to the supporting formwork (1), and a detachment hole (12) is opened on the construction formwork.

3. The waterproof construction template for subway station side wall according to claim 1 is characterized in that: A filling block (32) is inserted into the disengagement hole (12).

4. The waterproof construction template for subway station side walls according to claim 3 is characterized in that: The supporting template (1) is provided with a limiting piece for preventing the filling block (32) from detaching.

5. The waterproof construction template for subway station side walls according to claim 4 is characterized in that: The limiting member comprises a rotating column (10) fixedly inserted into a side of the supporting template (1) away from the waterproofing coiled material (2), and a limiting rod (11) vertically rotatably connected to the rotating column (10).

6. The waterproof construction template for subway station side walls according to claim 5, characterized in that: A blind groove (33) is provided in the positioning block (32), a pressing spring (30) is embedded in the blind groove (33), and the limiting rod (11) contacts the pressing spring (30).

7. The waterproof construction template for subway station side walls according to claim 6, characterized in that: An extrusion plate (31) is provided between the extrusion spring (30) and the limiting rod (11).

8. The waterproof construction template for subway station side walls according to claim 3 is characterized in that: The positioning block (32) is provided with a positioning plate (34) extending outwardly from one side of the waterproof coiled material (2) and attached to the supporting formwork (1).

9. The waterproof construction template for subway station side walls according to claim 8, characterized in that: A plurality of the disengagement holes (12) are provided, and a plurality of the filling blocks (32) are provided in the disengagement holes (12).

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