Grouting stop sheet pre-embedding construction method, grouting stop sheet pre-embedding structure and tunnel

Abstract

The invention discloses a grouting stop piece pre-embedding construction method, a grouting stop piece pre-embedding structure and a tunnel. The grouting stop piece pre-embedding construction method comprises the following steps that lining structure construction is conducted, specifically, an embedding groove is reserved; pre-embedding the grout stopping sheet: embedding the bent grout stopping sheet into the embedding groove; the protective plate is constructed, and the top face of the grout stopping piece is filled with a joint mixture; the protective plate is mounted above the grout stopping sheet; and follow-up construction is conducted, specifically, the protection plate is cut off, the joint mixture is cleaned, and the bent grout stop piece is restored. The grout stop sheet pre-embedded structure is obtained based on the grout stop sheet pre-embedded construction method. The tunnel comprises the plug constructed by the pre-embedding construction method of the grout stopping sheet. According to the pre-embedding construction method for the grout stopping sheet, construction of the grout stopping sheet is combined with construction of other structures, so that the construction of the grout stopping sheet is dispersed into other construction, the construction workload and the construction difficulty are reduced, and the construction period is shortened as much as possible on the basis that the construction quality of the grout stopping sheet is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of grouting plate construction methods, and in particular to a grouting plate pre-embedded construction method, a grouting plate pre-embedded structure and a tunnel. Background Art

[0002] In water conservancy and hydropower projects, diversion tunnels and other tunnels connected to reservoirs require permanent sealing before reservoir filling. Although the sealing work is relatively small, in most cases the deadline is relatively tight, often becoming a key project for progress control before water filling. The sealing is generally made of poured concrete. After pouring, backfill grouting and joint grouting should be carried out in sequence. When pouring the sealing concrete, the grouting pipeline system should be buried according to the grouting area layout. The grouting system for each grouting area should consist of a grouting inlet pipe, a grouting return pipe, grouting and discharging facilities, exhaust facilities, and grouting stoppers.

[0003] There are generally two construction schemes for common grout stoppers, specifically: Option 1 is to carve grooves in the tunnel lining concrete during plugging construction. Embedding grouting plates in the concrete grooves is difficult and has a tight construction schedule.

[0004] The second option is to use adhesive materials such as epoxy mortar to adhere the grouting plate to the cave wall. This method is limited by the flatness of the cave wall, making it difficult to adhere the grouting plate. Furthermore, during grouting, it is prone to problems such as misalignment and holes, which can cause leakage in the grouting area and directly affect the grouting quality. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing grouting plate construction scheme has poor practicality. The purpose is to provide a grouting plate pre-embedded construction method, a grouting plate pre-embedded structure and a tunnel to solve the above problem.

[0006] The present invention is achieved through the following technical solutions: In a first aspect, the present invention provides a method for pre-embedded construction of a grout stopper, comprising the following steps: Lining structure construction: leave a buried groove; Pre-buried grouting piece: the bent grouting piece is buried in the buried groove; pouring concrete: Guard plate construction: Fill the top surface of the stop grout with caulking agent; install the guard plate above the stop grout; Subsequent construction: removing the guard plate, cleaning the caulking agent, and restoring the bent stop plate.

[0007] In one possible design, based on the pre-embedded grouting plate, it includes: The stop plate is bent with its nose as the center, and the stop plate is divided into two sub-segments with its nose as the center; The mortar stopper is buried in the embedding groove, with one sub-section close to the construction joint and the other sub-section suspended in the air; Fill the top of the nose of the stopper with cement; Pour concrete to below the top surface of the grout stop.

[0008] In a possible design, based on pre-embedding of grouting sheets, the method includes: placing one or two grouting sheets into the embedding groove; When two mortar stoppers are placed, the sub-segments of the two mortar stoppers that are close to the construction joints are arranged opposite to each other, and the suspended sub-segments of the two mortar stoppers are arranged in a stacked manner one above the other.

[0009] In a possible design, based on bending the stop plate with the nose of the stop plate as the center, the intersection angle between the two sub-segments is 90°±3°; Accordingly, when the mortar stop plate pre-embedded construction method is used in a tunnel, when the mortar stop plate is buried in the embedding groove, one of the two sub-segments is a vertical segment perpendicular to the overflow surface of the tunnel, and the other is a horizontal segment parallel to the overflow surface of the tunnel.

[0010] In a possible design, when the mortar stop plate pre-embedding construction method is used in a tunnel, based on the mortar stop plate pre-embedding, it includes: the burial depth of the mortar stop plate is not less than 10 cm.

[0011] In one possible design, based on the sheathing construction, it includes: When the concrete begins to set, fill the top surface of the grouting plate with caulking agent; A guard plate is installed, the top surface of which is flush with the surface of the initially constructed lining structure, and the side surface of the guard plate is welded to the reinforcement cage of the lining structure.

[0012] In one possible design, polyurethane foam filler is used as the caulking agent, and 36a channel steel is used as the guard plate.

[0013] In one possible design, based on the guard plate removal, it includes: guard plate removal, cleaning of caulking agent, restoration of bent stop plate, and subsequent construction work.

[0014] In a second aspect, the present invention provides a grout-stopping plate embedded structure, which is obtained based on the grout-stopping plate embedded construction method.

[0015] In a third aspect, the present invention provides a tunnel, including a plug for constructing the tunnel based on the pre-embedded construction method of the grouting plate.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: The pre-embedded construction method of the grouting plate combines the construction of the grouting plate with the construction of the remaining structures, thereby dispersing the construction of the grouting plate to the remaining construction to reduce the construction workload and construction difficulty, and to save construction time as much as possible while ensuring the construction quality of the grouting plate.

[0017] Compared to existing groove embedding methods, the pre-embedded grouting plate construction method replaces groove embedding with pre-reserved embedding grooves, effectively reducing the construction difficulty and time required, effectively resolving the tight construction schedule caused by the high construction difficulty. Compared to gluing grouting plates, there are no restrictions on wall flatness, and there is no need to worry about grout leakage during grouting, thus ensuring the construction quality of the grouting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings: Figure 1 The present invention is a flow chart of a method for pre-embedded construction of grouting plates.

[0019] Figure 2 This is a structural schematic diagram of a pre-buried structure of a slurry stopper.

[0020] Markings and corresponding parts names in the accompanying drawings: 1. Lining structure layer; 101. Concrete layer; 102. Anchor reinforcement; 2. Grout stopper; 3. Sealant layer; 4. Guard plate. DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0022] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that these specific details are not necessarily required to practice the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not described in detail to avoid obscuring the present invention.

[0023] Throughout this specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present invention. Therefore, appearances of the phrases "one embodiment," "an embodiment," "an example," or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combinations and / or subcombinations. Furthermore, it will be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes only and are not necessarily drawn to scale. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0024] In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0025] Example: like Figure 1 and Figure 2 As shown, in a first aspect, the present invention provides a method for pre-embedded construction of a grouting plate, comprising the following steps: S100 lining structure construction: leave a buried groove; S200 mortar stopper 2 pre-buried: the bent mortar stopper 2 is buried in the buried groove; pouring concrete: S300 guard plate 4 construction: fill the top surface of the stop grout plate 2 with caulking agent; install the guard plate 4 above the stop grout plate 2; S400 subsequent construction: the guard plate 4 is removed, the sealant is cleaned, and the bent stop plate 2 is restored.

[0026] Taking tunnel construction as an example, the tunnel will first undergo lining construction, followed by plugging, including: In step S100 , the lining structure is constructed according to the engineering design, and an embedding groove is reserved at the position where the mortar stopper 2 is embedded.

[0027] In step S200, the mortar stop piece 2 is pre-buried in the reserved embedding groove. In this step, first, attention should be paid to bending the mortar stop piece 2 to reduce the space occupied by the mortar stop piece 2 and ensure that the mortar stop piece 2 can be placed in the embedding groove; second, attention should be paid to avoiding the pre-buried space of the mortar stop piece 2 from interfering with the stress-bearing steel bars of the lining structure to ensure the construction quality of the lining structure.

[0028] In step S300, after the grouting plate 2 is embedded, it can be covered with the guard plate 4. When the tunnel is subsequently filled with water, the guard plate 4 protects the grouting plate 2 from being eroded by the water flow, preventing deformation and damage to the grouting plate 2. It is worth noting that the guard plate 4 is fixed to the steel bars of the lining structure to fix the position of the guard plate 4, ensuring that the guard plate 4 is tightly connected to the lining structure to prevent deformation and damage to the guard plate 4 during tunnel flow. There is a gap between the guard plate 4 and the grouting plate 2, which is filled with caulking agent before the guard plate 4 is installed to strengthen the protection of the grouting plate 2.

[0029] In step S400, during the subsequent construction process, if the flow of the tunnel ends and the plugging is carried out, the guard plate 4 is removed and the sealant is cleaned so that the stop slurry sheet 2 is exposed to the outside. At this time, the bent stop slurry sheet 2 is restored so that the stop slurry sheet 2 can play its role.

[0030] It is worth noting that, considering that the stop grouting piece 2 will play the role of stopping grouting and sealing in the subsequent use process, in step S200, when the stop grouting piece 2 is embedded, the unbent part should be fitted with the construction joint, compacted and tightly attached, that is, it should be installed according to the existing stop grouting piece 2 installation method. Figure 2 As shown, after the stop grout piece 2 is embedded, the unbent portion is embedded in the concrete structure. This portion will not be constructed in step S400, so attention should be paid to the installation quality in step S200 to ensure the effect of subsequent use.

[0031] Based on this, the pre-embedded construction method of the grouting plate combines the construction of the grouting plate 2 with the construction of the rest of the structure, thereby dispersing the construction of the grouting plate 2 to the rest of the construction, so as to reduce the construction workload and construction difficulty, and save construction time as much as possible on the basis of ensuring the construction quality of the grouting plate 2.

[0032] Compared to existing groove embedding methods, the pre-embedded grouting plate construction method replaces groove embedding with pre-reserved embedding grooves, effectively reducing the construction difficulty and time required, effectively solving the problem of tight construction schedules caused by the high construction difficulty. Compared to grouting, there is no need to be restricted by wall flatness, and there is no need to worry about grout leakage during grouting, thus ensuring the construction quality of the grouting plate 2.

[0033] In a possible implementation, based on the lining structure construction in S100, the construction in step S100 is carried out according to the specific construction environment, construction object and construction design, and it is noted that the buried groove is reserved at the designed position.

[0034] In a possible implementation, based on the pre-embedding of the stopper 2 in S200, the following steps are included: S210 bends the stop slab 2 with its nose as the center, so that the stop slab 2 is divided into two sub-segments with its nose as the center; S220 grout stopper 2 is buried in the buried groove, with one sub-segment close to the construction joint and the other sub-segment suspended in the air; S230 stopper 2 Fill the top of the nose with cement; S240: pouring concrete to below the top surface of the grouting plate 2.

[0035] Based on the above design scheme, the stop mortar piece 2 is bent in step S210, that is, the bending operation is performed outside the buried groove. On the one hand, the external space is large, which is convenient for construction. On the other hand, it is convenient to bend in advance and can be directly inserted when the stop mortar piece 2 is pre-buried, so as to save construction time.

[0036] It is worth noting that the nose of the stop slurry plate 2 is its structural symmetry point, so the stop slurry plate 2 is bent with the nose as the center. It is easy to understand that the stop slurry plate 2 can be selected from "W" type stop slurry plate 2, or any other suitable existing model.

[0037] In step S220, for the two sub-segments after the stop grouting plate 2 is bent, the one close to the construction joint is installed according to the existing stop grouting plate 2 installation method to ensure the later use effect, and the other is suspended in the air. When pouring concrete subsequently, care should be taken that the concrete cannot cover this field to facilitate the subsequent restoration of the stop grouting plate 2.

[0038] In step S230, the gap in the already bent nose is eliminated by filling it with glue to prevent the stop slurry sheet 2 from being deformed or damaged during the embedding process, thereby ensuring the integrity of the stop slurry sheet 2. It is easy to understand that the glue can be plastic glue or any other suitable existing model.

[0039] In step S240, after the stopper 2 is embedded in the embedding groove, concrete can be poured to fill the lower half of the embedding groove. When pouring concrete, pay attention to the pouring amount to avoid concrete sticking to the suspended sub-segments, which reduces the difficulty of restoring the stopper 2 later.

[0040] In a possible implementation, pre-embedding the stop grout piece 2 based on S200 includes: placing one or two stop grout pieces 2 into the embedding groove; When two mortar-stopping sheets 2 are placed, the sub-segments of the two mortar-stopping sheets 2 that are close to the construction joints are arranged opposite to each other, and the suspended sub-segments of the two mortar-stopping sheets 2 are stacked one above the other.

[0041] Based on the above design, at least one stop grouting sheet 2 is placed in one buried groove. According to the subsequent construction requirements, if necessary, two stop grouting sheets 2 can be placed in one buried groove to improve the grouting and sealing effect of the stop grouting sheet 2. It is worth noting that when two stop grouting sheets 2 are placed in the same buried groove, Figure 2 As shown, preferably, the sub-segments of the two mortar-stopping plates 2 that are close to the construction joints are arranged opposite to each other, and the suspended sub-segments of the two mortar-stopping plates 2 are arranged in a stacked manner one above the other.

[0042] In a possible implementation, the step of bending the stop plate 2 with the nose of the stop plate 2 as the center based on S210 includes: an intersection angle between two sub-segments is 90°±3°; Accordingly, when the mortar stop plate pre-embedded construction method is used in a tunnel, when the mortar stop plate 2 is buried in the embedding groove, one of the two sub-segments is a vertical segment perpendicular to the overflow surface of the tunnel, and the other is a horizontal segment parallel to the overflow surface of the tunnel.

[0043] Based on the above design, when bending the stopper blade 2, the intersection angle between the two sub-segments is preferably approximately 90°, meaning the two sub-segments are perpendicular to each other. This clarifies the bending process and helps ensure bending quality and consistency. For tunnel construction, the two perpendicular sub-segments are: one vertical segment perpendicular to the overflow surface, and the other horizontal segment parallel to the overflow surface.

[0044] It is worth noting that when the stop grouting sheet 2 is used in the construction of other buildings, based on the specific construction conditions, on the basis of ensuring that the stop grouting sheet 2 can be placed in the buried groove, the intersection angle between the two sub-segments can also be any other suitable angle, and the present invention does not impose any restrictions on this.

[0045] In one possible implementation, when the grouting plate pre-embedding construction method is used in a tunnel, the grouting plate 2 pre-embedding step S200 includes: the grouting plate 2 is embedded to a depth of no less than 10 cm. Therefore, during tunnel construction, considering that the thickness of the steel reinforcement protective layer on the tunnel flow surface is no less than 10 cm, the grouting plate 2 should be embedded to a depth of no less than 10 cm to prevent interference between the grouting plate 2 and the reinforcement.

[0046] It is easy to understand that when the construction method of pre-embedding the grouting plate is used for other buildings, the pre-embedding depth of the grouting plate 2 should be flexibly adjusted according to actual conditions to adapt to different construction environments.

[0047] In a possible implementation, the construction of the S300 guard plate 4 includes the following steps: S310: When the concrete is initially set, fill the top surface of the stopper plate 2 with a caulking agent; S320 is covered with a guard plate 4, the top surface of which is flush with the surface of the initially constructed lining structure, and the side surface of the guard plate 4 is welded to the reinforcement cage of the lining structure.

[0048] Based on the above design, in step S310, after the concrete in the embedding trench has initially set, the guard plate 4 can be installed. Considering that the embedding trench is surrounded by solidified concrete, there is no space for caulking after the guard plate 4 is placed. Therefore, the caulking agent should be applied to the grout stop 2 first.

[0049] It is easy to understand that the caulking agent can be polyurethane foam caulking agent, or any other suitable existing model.

[0050] In step S320, the guard plate 4 is placed in the embedding groove, and the caulking agent is compacted while covering the stopper 2. The interaction between the guard plate 4 and the caulking agent enhances the protection of the stopper 2. To prevent the guard plate 4 from being disturbed during processes such as tunnel flow, the side of the guard plate 4 is welded to the reinforcement cage of the lining structure, thereby securing the position of the guard plate 4. Furthermore, the top surface of the guard plate 4 is flush with the surface of the initially constructed lining structure, minimizing exposure of the guard plate 4 and reducing damage to the top surface of the guard plate 4, facilitating the subsequent recycling of the guard plate 4.

[0051] It is easy to understand that the guard plate 4 can be made of 36a channel steel, or any other suitable existing model.

[0052] In a possible implementation, based on S400, subsequent construction includes the following steps: S410 guard plate 4 removed; S420 cleans caulk; S430 The bent stopper piece 2 is restored; S440 follow-up construction work.

[0053] Based on the above design, in step S410 , the cutting operation can be performed by any suitable existing method to ensure the integrity of the guard plate 4 as much as possible, so as to facilitate the subsequent repeated recycling of the guard plate 4 .

[0054] In step S420, the caulking agent is cleaned to reduce impurities, which helps to restore the stop grouting sheet 2 on the one hand, and improves the subsequent fit between the stop grouting sheet 2 and the construction joint on the other hand.

[0055] In step S430, the staff manually stretches and restores the stopper 2. If necessary, the staff can also use any suitable existing equipment to perform the restoration operation.

[0056] In step S440, subsequent construction can be carried out according to specific construction requirements. For example, when the grout-stopping plate pre-embedded construction method is used for tunnel construction, plugging construction is performed in S440.

[0057] In a second aspect, the present invention provides a grout-stopping plate pre-embedded structure, which is obtained based on the grout-stopping plate pre-embedded construction method. Figure 2 As shown, the grout-stopping plate embedded structure includes a lining structure layer 1, a grout-stopping plate 2, a sealant layer 3 and a guard plate 4; The lining structure layer 1 includes a concrete layer 101 formed by solidification of concrete and anchor bars 102 embedded in the concrete layer 101. Accordingly, a plurality of anchor bars 102 are provided, and the plurality of anchor bars 102 are interlaced with each other to form a reinforcement cage inserted into the concrete layer 101. An embedding groove is left between two adjacent anchor bars 102, and the bent stop grouting piece 2 is placed in the embedding groove; the bent stop grouting piece 2 is divided into two sub-segments with its nose as the center, one sub-segment is closely attached to the construction joint, and the other sub-segment is suspended in the air; concrete is poured into the embedding groove to form an additional concrete layer 101 with its top surface located below the suspended sub-segment; The suspended sub-segment of the stopper plate 2 is filled with a sealant to form the sealant layer 3; The guard plate 4 is placed over the sealant layer 3 and covers the grouting plate 2. The top surface of the guard plate 4 is flush with the top surface of the concrete layer 101. The side surface of the guard plate 4 is welded to the anchor bar 102 of the lining structure.

[0058] It is worth noting that when two mortar-stopping plates 2 are placed in the buried groove, the sub-segments of the two mortar-stopping plates 2 that are close to the construction joints are arranged relative to each other, and the suspended sub-segments of the two mortar-stopping plates 2 are arranged in a stacked manner one above the other.

[0059] In addition, the working process, working details and technical effects of the pre-embedded structure of the stop grouting plate have been explained in conjunction with the pre-embedded construction method of the stop grouting plate in the first aspect, and will not be repeated here.

[0060] In a third aspect, the present invention provides a tunnel, including a tunnel plug constructed using the aforementioned method for pre-embedding a grouting plate. The aforementioned method for pre-embedding a grouting plate is used for tunnel construction. The grouting plate 2 is constructed between the tunnel lining and the plug, thereby achieving reduced construction difficulty, high-quality construction of the grouting plate 2, convenient construction, and reduced construction time.

[0061] It is easy to understand that in this embodiment, the pre-embedded construction method of the grouting plate is described by taking tunnel construction as an example, but the pre-embedded construction method of the grouting plate can also be used in the construction of any other suitable buildings, with a wide range of uses and good practicality.

[0062] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for pre-embedding a grouting plate, characterized in that: The following steps are involved: Lining structure construction: leave a buried groove; Pre-embedding of the stop grouting piece (2): the bent stop grouting piece (2) is embedded in the embedding groove; pouring concrete: Construction of the guard plate (4): the top surface of the stop grouting plate (2) is filled with a caulking agent; the guard plate (4) is installed above the stop grouting plate (2); Subsequent construction: the guard plate (4) is removed, the caulking agent is cleaned, and the bent stop plate (2) is restored.

2. The method for pre-embedding the grouting plate according to claim 1, characterized in that: Based on the pre-embedded stop plate (2), including: The stop slurry plate (2) is bent with the nose of the stop slurry plate (2) as the center, and the stop slurry plate (2) is divided into two sub-segments with the nose of the stop slurry plate (2) as the center; The mortar stopper (2) is buried in the embedding groove, with one sub-segment close to the construction joint and the other sub-segment suspended in the air; The stopper (2) is used to fill the top of the nose with cement; Pour concrete to below the top surface of the stop plate (2).

3. The method for pre-embedding the grouting plate according to claim 2, characterized in that: Based on the pre-embedding of the stop mortar piece (2), the method includes: placing one or two stop mortar pieces (2) into the embedding groove; When two mortar-stopping sheets (2) are placed, the sub-segments of the two mortar-stopping sheets (2) that are close to the construction joints are arranged relative to each other, and the suspended sub-segments of the two mortar-stopping sheets (2) are arranged in a stacked manner one above the other.

4. The method for pre-embedding the grouting plate according to claim 3, characterized in that: Based on bending the stop slurry sheet (2) with the nose of the stop slurry sheet (2) as the center, the stop slurry sheet (2) comprises: an intersection angle between two sub-segments of 90°±3°; Accordingly, when the mortar stop plate pre-embedded construction method is used for a tunnel, when the mortar stop plate (2) is buried in the embedding groove, one of the two sub-segments is a vertical segment perpendicular to the overflow surface of the tunnel, and the other is a horizontal segment parallel to the overflow surface of the tunnel.

5. The method for pre-embedding the grouting plate according to claim 2, characterized in that: When the mortar stop plate pre-embedding construction method is used in a tunnel, based on the pre-embedding of the mortar stop plate (2), the mortar stop plate (2) is embedded at a depth of not less than 10 cm.

6. The method for pre-embedding a grouting plate according to any one of claims 1 to 5, characterized in that: Construction based on guard plate (4), including: When the concrete is initially set, fill the top surface of the stopper plate (2) with a caulking agent; A guard plate (4) is provided, wherein the top surface of the guard plate (4) is flush with the surface of the initially constructed lining structure, and the side surface of the guard plate (4) is welded to the reinforcement cage of the lining structure.

7. The method for pre-embedding the grouting plate according to claim 6, characterized in that: The caulking agent is polyurethane foam caulking agent; the guard plate (4) is 36a channel steel.

8. The method for pre-embedding the grouting plate according to claim 6, characterized in that: Based on the removal of the guard plate (4), the method includes: removing the guard plate (4), cleaning the caulking agent, restoring the bent stop plate (2), and subsequent construction operations.

9. A pre-buried structure of a stop grout plate, characterized in that: It is obtained based on the pre-embedded construction method of the grouting plate described in any one of claims 1-8.

10. A tunnel, characterized in that: The invention comprises a plug for constructing a tunnel based on the method for pre-embedded construction of a grouting plate according to any one of claims 1 to 8.

Images