Roof curtain grouting structure

Abstract

The utility model relates to the technical field of curtain grouting, and discloses a roof curtain grouting structure which comprises a tunnel, a forepoling layer is fixed on the inner wall of the tunnel, a waterproof layer is fixed on the bottom face of the forepoling layer, a steel bar layer is fixed on the bottom face of the waterproof layer, a steel structure layer is fixed on the bottom face of the steel bar layer, and a grout stopping wall is arranged on one side of the tunnel. And a protection structure is arranged between the tunnel and the grout stopping wall. Through the arrangement of the protection structure, a worker pours and fixes the grout-stopping wall on one side of the tunnel, the protruding part is synchronously poured in the tunnel through the formwork in the pouring process, the protruding part and the grout-stopping wall form an integrated structure, and in the protruding part pouring process, the bent part of the steel bar layer is inserted into the protruding part; the reinforcing steel bar layer of the tunnel, the grout stopping wall and the protruding part form a whole, the overall pressure resistance and crack resistance of the grout stopping wall are improved, then a worker fixes a water stopping strip between the protruding part and the tunnel, underground water is prevented from permeating into the tunnel in the grouting process, and the grouting effect of the grouting structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of curtain grouting, in particular to a roof curtain grouting structure. Background Art

[0002] Roof curtains and roof curtain grouting structures are common concepts in the field of construction engineering. They are usually used for waterproofing, reinforcement and foundation treatment of underground structures, especially in preventing water leakage, improving structural stability and improving soil conditions. Roof curtain grouting structure is a technology that injects slurry into the holes of roof curtains or the underground part of buildings to enhance waterproofing performance and strengthen the foundation.

[0003] The existing new type of tunnel curtain grouting structure (Announcement No.: CN215057463U) has at least the following disadvantages: Although the above-mentioned device casts a grouting wall in the groove and uses steel bars to reinforce it, if the geological conditions are poor or the groundwater pressure is too high, the concrete grouting wall may still crack or seep, resulting in poor curtain grouting effect. For this reason, we propose a utility model. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a roof curtain grouting structure.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A roof curtain grouting structure includes a tunnel, wherein an advance support layer is fixed to the inner wall of the tunnel, a waterproof layer is fixed to the bottom surface of the advance support layer, a steel layer is fixed to the bottom surface of the waterproof layer, a steel layer is fixed to the bottom surface of the steel layer, and a concrete layer is fixed to the bottom surface of the steel layer. A grouting wall is provided on one side of the tunnel, and a protective structure is provided between the tunnel and the grouting wall. The protective structure includes a protrusion fixed to one side of the grouting wall, a top surface of the protrusion is provided with a plurality of insertion grooves, and the internal steel bars of the steel layer are bent at one end close to the grouting wall, and the bent portion is fixed to the inside of the insertion groove.

[0007] As a further solution of the present invention, the protrusion is fixed to the inside of the tunnel, the slurry stop wall is fixed to one side of the tunnel, and a water stop strip is fixed between the protrusion and the inner wall of the tunnel.

[0008] As a further solution of the present invention, a plurality of grouting pipes are fixed to one side of the grouting wall, and one end of the grouting pipe passes through the grouting wall and the protrusion and extends to the interior of the tunnel.

[0009] As a further solution of the present invention, a plurality of drainage holes are opened on one side of the grouting wall and the protrusion, and the drainage holes are located below the grouting pipe.

[0010] As a further solution of the present invention, a guide platform is fixed to the inner bottom surface of the tunnel, the top surface of the guide platform is an inclined surface, one side of the guide platform is fixed to one side of the protrusion, and the guide platform is located below the drainage hole.

[0011] As a further solution of the present invention, a grid plate is fixed to the top surface of the guide platform, and the top surface of the grid plate is a hollow structure.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The curtain grouting structure, through the setting of protective structure, the workers cast a fixed grouting wall on one side of the tunnel, and cast a protrusion in the tunnel simultaneously through the formwork during the casting process, so that the protrusion and the grouting wall form an integrated structure. During the casting of the protrusion, the bent part of the steel layer is inserted into the protrusion, so that the steel layer of the tunnel, the grouting wall and the protrusion form a whole, thereby improving the overall compression and crack resistance of the grouting wall. Afterwards, the workers fix a water stop strip between the protrusion and the tunnel to prevent groundwater from seeping into the tunnel during the grouting process, thereby improving the waterproof performance of the grouting wall, thereby improving the grouting effect of the grouting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the roof curtain grouting structure proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the split structure of the roof curtain grouting structure proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the split structure of the guide platform of the roof curtain grouting structure proposed by the present invention;

[0017] Figure 4 This is a schematic diagram of the split structure of the protruding portion of the roof curtain grouting structure proposed by the present invention;

[0018] Figure 5 The utility model provides a roof curtain grouting structure Figure 3 Enlarged structural diagram at point A in the middle.

[0019] In the figure: 1. Tunnel; 101. Protrusion; 102. Insertion groove; 103. Bending part; 104. Water stop strip; 2. Advance support layer; 201. Grouting pipe; 202. Drain hole; 3. Waterproof layer; 301. Guide platform; 4. Rebar layer; 401. Grille plate; 5. Steel structure layer; 6. Concrete layer; 7. Grout stop wall. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figure 1-Figure 5 The roof curtain grouting structure includes a tunnel 1, an advance support layer 2 is fixed to the inner wall of the tunnel 1, a waterproof layer 3 is fixed to the bottom surface of the advance support layer 2, a steel layer 4 is fixed to the bottom surface of the waterproof layer 3, a steel layer 5 is fixed to the bottom surface of the steel layer 4, and a concrete layer 6 is fixed to the bottom surface of the steel layer 5. A grouting wall 7 is provided on one side of the tunnel 1, and a protective structure is provided between the tunnel 1 and the grouting wall 7. The protective structure includes a protrusion 101 fixed to one side of the grouting wall 7, and a plurality of insertion grooves 102 are provided on the top surface of the protrusion 101. The internal steel bars of the steel layer 4 are close to the grouting wall 7. The end of the bending portion 103 is fixed to the inside of the insertion groove 102.

[0024] In this embodiment, the protrusion 101 is fixed to the inside of the tunnel 1, the grouting wall 7 is fixed to one side of the tunnel 1, and a water stop strip 104 is fixed between the protrusion 101 and the inner wall of the tunnel 1. The water stop strip 104 is a rubber strip that expands when it comes into contact with water. Through the setting of the protective structure, the staff casts and fixes the grouting wall 7 on one side of the tunnel 1. During the casting process, the protrusion 101 is simultaneously cast in the tunnel 1 through the template, so that the protrusion 101 and the grouting wall 7 form an integrated structure. During the casting process of the protrusion 101, the bent portion 103 of the steel layer 4 is inserted into the protrusion 101, so that the steel layer 4 of the tunnel 1 forms a whole with the grouting wall 7 and the protrusion 101, thereby improving the overall compression and crack resistance of the grouting wall 7. Afterwards, the staff fixes the water stop strip 104 between the protrusion 101 and the tunnel 1 to prevent groundwater from seeping into the tunnel 1 during the grouting process, thereby improving the waterproof performance of the grouting wall 7, thereby improving the grouting effect of the grouting structure.

[0025] In this embodiment, several grouting pipes 201 are fixed on one side of the grouting wall 7. One end of the grouting pipe 201 passes through the grouting wall 7 and the protrusion 101 and extends to the interior of the tunnel 1. Workers can grout between the grouting wall 7 and the tunnel face through the grouting pipe 201.

[0026] In this embodiment, a plurality of drainage holes 202 are opened on one side of the grouting wall 7 and the protrusion 101. The drainage holes 202 are located below the grouting pipe 201. The groundwater pressure on the side of the grouting wall 7 close to the tunnel face is released through the drainage holes 202.

[0027] In this embodiment, a guide platform 301 is fixed to the inner bottom surface of the tunnel 1. The top surface of the guide platform 301 is an inclined surface. One side of the guide platform 301 is fixed to one side of the protrusion 101. The guide platform 301 is located below the drainage hole 202. The guide platform 301 and the inclined surface of its top surface can be used to guide the discharged groundwater to prevent accumulation.

[0028] In this embodiment, a grid plate 401 is fixed to the top surface of the guide platform 301. The top surface of the grid plate 401 is a hollow structure, and the grid plate 401 can provide a stable grouting platform for the staff.

[0029] Working principle: During use, the staff casts a fixed grouting wall 7 on one side of the tunnel 1. During the casting process, the protrusion 101 is cast synchronously in the tunnel 1 through the template, so that the protrusion 101 and the grouting wall 7 form an integrated structure. During the casting process of the protrusion 101, the bent portion 103 of the steel layer 4 is inserted into the protrusion 101, so that the steel layer 4 of the tunnel 1 forms a whole with the grouting wall 7 and the protrusion 101, thereby improving the overall compression and crack resistance of the grouting wall 7. Afterwards, the staff fixes the water stop strip 104 between the protrusion 101 and the tunnel 1 to prevent groundwater from seeping into the tunnel 1 during the grouting process. The staff can grout between the grouting wall 7 and the heading face through the grouting pipe 201, and release the groundwater pressure on the side of the grouting wall 7 close to the heading face through the drainage hole 202. The discharged groundwater can be diverted through the guide platform 301 and the inclined surface of its top surface to prevent accumulation. The grating plate 401 can provide a stable grouting platform for the staff.

[0030] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A roof curtain grouting structure comprising a tunnel (1), characterized in that: The inner wall of the tunnel (1) is fixed with an advance support layer (2), the bottom surface of the advance support layer (2) is fixed with a waterproof layer (3), the bottom surface of the waterproof layer (3) is fixed with a steel layer (4), the bottom surface of the steel layer (4) is fixed with a steel structure layer (5), and the bottom surface of the steel structure layer (5) is fixed with a concrete layer (6). A mortar stop wall (7) is provided on one side of the tunnel (1), and a protective structure is provided between the tunnel (1) and the mortar stop wall (7). The protective structure includes a protrusion (101) fixed on one side of the mortar stop wall (7), a top surface of the protrusion (101) is provided with a plurality of insertion grooves (102), and the inner steel bars of the steel layer (4) are close to the mortar stop wall (7) at one end thereof, and the bending portion (103) is fixed to the inside of the insertion groove (102).

2. The roof curtain grouting structure according to claim 1, characterized in that: The protrusion (101) is fixed to the inside of the tunnel (1), the mortar stop wall (7) is fixed to one side of the tunnel (1), and a water stop strip (104) is fixed between the protrusion (101) and the inner wall of the tunnel (1).

3. The roof curtain grouting structure according to claim 2, characterized in that: A plurality of grouting pipes (201) are fixed to one side of the grouting wall (7), and one end of the grouting pipe (201) passes through the grouting wall (7) and the protruding portion (101) and extends to the interior of the tunnel (1).

4. The roof curtain grouting structure according to claim 3, characterized in that: A plurality of drainage holes (202) are provided on one side of the grouting wall (7) and the protruding portion (101), and the drainage holes (202) are located below the grouting pipe (201).

5. The roof curtain grouting structure according to claim 4, characterized in that: A guide platform (301) is fixed to the inner bottom surface of the tunnel (1), the top surface of the guide platform (301) is an inclined surface, one side of the guide platform (301) is fixed to one side of the protrusion (101), and the guide platform (301) is located below the drainage hole (202).

6. The roof curtain grouting structure according to claim 5, characterized in that: A grid plate (401) is fixed on the top surface of the guide platform (301), and the top surface of the grid plate (401) is a hollow structure.

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