Modularized grout stopping wall

Abstract

The utility model relates to the technical field of grout stopping walls, and provides a modularized grout stopping wall which comprises a tunnel body, a plurality of blocking plates, sealing structures and back ridge structures, the blocking plates are spliced in the tunnel body one by one, the sealing structures are arranged between the blocking plates and between the blocking plates and the tunnel body, and the back ridge structures are arranged between the blocking plates and the tunnel body. The blocking plates and the sealing structure are used for blocking the tunnel body, the two back ridge structures abut against the two sides of the blocking plates correspondingly, and the outer ends of the back ridge structures are fixedly connected with the tunnel body; the utility model has the beneficial effects that the problems that the grouting times of the advanced curtain are uncontrollable during construction, so that the grouting stop wall is often repeatedly constructed, and the existing grouting stop wall is inconvenient to disassemble and reuse are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry-stop walls, and relates to a modular slurry-stop wall. Background Art

[0002] During the construction of long-distance mountain tunnels, there are often situations where adverse geological conditions such as karst, faults, and rich water are superimposed. During the construction process, sudden water and mud gushing may be encountered, sometimes accompanied by partial collapse of the heading face, and the scene cannot be controlled. Due to the rich water in the mountain body, the water and mud gushing cannot drain itself, and plugging measures need to be taken. Usually, the method of advanced curtain grouting is adopted. When performing advanced curtain grouting in the adverse geological zone, a slurry-stop wall needs to be constructed first, that is, a concrete wall is constructed on the heading face. During construction, due to the uncontrollable number of advanced curtain grouting times, the slurry-stop wall is often constructed repeatedly, and the existing slurry-stop wall is not convenient for disassembly and reuse. Therefore, this application plans to develop a modular slurry-stop wall to solve the above problems. Content of the Utility Model

[0003] In view of the above technical problems existing in the prior art, a modular slurry-stop wall is provided, which solves the problem that during construction, due to the uncontrollable number of advanced curtain grouting times, the slurry-stop wall is often constructed repeatedly, and the existing slurry-stop wall is not convenient for disassembly and reuse.

[0004] The purpose and effect of the utility model are achieved by the following specific technical means:

[0005] A modular slurry-stop wall includes: a tunnel body, a plugging plate, a sealing structure, and a back rib structure. A plurality of the plugging plates are provided and are spliced one by one in the tunnel body. The sealing structure is arranged between the plugging plates and between the plugging plate and the tunnel body. The plurality of plugging plates and the sealing structure are used to plug the tunnel body. Two back rib structures are provided and respectively abut against both sides of the plurality of plugging plates, and the outer ends of the back rib structures are fixedly connected to the tunnel body.

[0006] Further, the sealing structure includes a first sealing rubber strip and a second sealing rubber strip. The first sealing rubber strip is arc-shaped and fixed on the inner wall of the tunnel body. A plurality of the second sealing rubber strips are provided and are respectively fixed on the peripheries of the plurality of plugging plates. The second sealing rubber strips on adjacent two plugging plates are in contact with each other, and the first sealing rubber strip is in contact with the adjacent second sealing rubber strip.

[0007] Further, the back brace structure includes a plurality of vertical fixing bars, horizontal fixing bars, mounting sleeves and bolts. The plurality of vertical fixing bars are respectively vertically and evenly abutted against both sides of a plurality of the plugging plates, and the ends of the vertical fixing bars are fixedly connected to the inner wall of the tunnel body. A plurality of screw holes are evenly formed in each of the vertical fixing bars. The plurality of horizontal fixing bars are horizontally and evenly installed on the plurality of vertical fixing bars, and the ends of the horizontal fixing bars are fixedly connected to the inner wall of the tunnel body. The plurality of mounting sleeves are respectively and evenly fixed on the plurality of horizontal fixing bars, and the plurality of mounting sleeves respectively correspond to the plurality of screw holes. The inner ends of the plurality of bolts respectively pass through the plurality of mounting sleeves and are threadedly connected to the corresponding screw holes.

[0008] Further, the plugging plate is a steel plate.

[0009] Further, a plurality of anchor bolts are arranged radially along the cross-section of the tunnel body;

[0010] At least one chain is fixed to the outer wall of the plugging plate close to the inner wall of the tunnel body, and the chain is buckled with the adjacent anchor bolt.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] For this modular grout stopping wall, a plurality of plugging plates are provided and spliced one by one in the tunnel body. This design not only facilitates workers to quickly manufacture the grout stopping wall, but also facilitates later disassembly, and is convenient to reuse the plugging plates to manufacture the grout stopping wall, reducing the construction cost; the plurality of plugging plates and the sealing structure are used to plug the tunnel body. One is to prevent the slurry from leaking from the grouting area into the roadway during the grouting process, and the other is to bear the pressure generated during the grouting process to ensure the smooth progress of the grouting work; the two back brace structures clamp and fix the plurality of plugging plates in the tunnel body, so that the plurality of plugging plates are stably spliced together. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall front view sectional structure schematic diagram of the present utility model;

[0014] Figure 2 is the front view sectional structure schematic diagram of a plurality of plugging plates of the present utility model spliced in the tunnel body;

[0015] Figure 3 is the side view sectional structure schematic diagram of the plugging plate and the back brace structure of the present utility model.

[0016] Markings in the figure: tunnel body 1, first sealing rubber strip 2, plugging plate 3, second sealing rubber strip 4, back brace structure 5, vertical fixing bar 51, screw hole 511, horizontal fixing bar 52, mounting sleeve 53, bolt 54, chain 6, anchor bolt 7. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Please refer to Figures 1-3 , for a further description of the embodiments of the present utility model;

[0018] A modular grout stopping wall includes a tunnel body 1, a blocking plate 3, a sealing structure and a back rib structure 5. There are several blocking plates 3 which are spliced one by one in the tunnel body 1. This design not only facilitates workers to quickly fabricate the grout stopping wall, but also facilitates later disassembly, making it convenient to reuse the blocking plates 3 to fabricate the grout stopping wall, reducing the construction cost; considering that the water pressure in the water-rich area of the tunnel is relatively large, the blocking plate 3 is preferably a steel plate with a relatively high hardness, and the steel plate close to the inner wall of the tunnel body 1 is fabricated by imitating the inner wall of the tunnel body 1; the sealing structure is arranged between the blocking plates 3 and between the blocking plate 3 and the tunnel body 1. Several blocking plates 3 and the sealing structure are used to block the tunnel body 1. One is to prevent the grout from leaking from the grouting area into the roadway during the grouting process, and the other is to bear the pressure generated during the grouting process to ensure the smooth progress of the grouting work; there are two back rib structures 5 which respectively abut against both sides of several blocking plates 3, and the outer ends of the back rib structures 5 are fixedly connected to the tunnel body 1, specifically by bolt connection, which is convenient for later disassembly, as Figure 1 and 2 shown. The two back rib structures 5 clamp and fix several blocking plates 3 in the tunnel body 1, so that several blocking plates 3 are stably spliced together.

[0019] The sealing structure includes a first sealing rubber strip 2 and a second sealing rubber strip 4. The first sealing rubber strip 2 is arc-shaped and fixed on the inner wall of the tunnel body 1. There are several second sealing rubber strips 4 which are respectively fixed on the peripheries of several blocking plates 3. The second sealing rubber strips 4 on adjacent two blocking plates 3 are in contact with each other, and the first sealing rubber strip 2 is in contact with the adjacent second sealing rubber strip 4. The first sealing rubber strip 2 and the second sealing rubber strip 4 are used to fill the gaps between the blocking plates 3 and between the blocking plate 3 and the tunnel body 1, so that the grout stopping wall seals the inside of the tunnel body 1. The first sealing rubber strip 2 and the second sealing rubber strip 4 are preferably ethylene propylene diene monomer (EPDM) sealing rubber strips with strong water pressure resistance. Of course, other sealing parts with strong water pressure resistance can also be selected.

[0020] The back rib structure 5 specifically includes several vertical fixing strips 51, horizontal fixing strips 52, mounting sleeves 53 and bolts 54. Several vertical fixing strips 51 are respectively vertically and evenly abutted against both sides of several blocking plates 3, and the ends of the vertical fixing strips 51 are fixedly connected to the inner wall of the tunnel body 1. A plurality of screw holes 511 are evenly formed on each of the vertical fixing strips 51. Several horizontal fixing strips 52 are horizontally and evenly installed on several vertical fixing strips 51, and the ends of the horizontal fixing strips 52 are fixedly connected to the inner wall of the tunnel body 1. Several mounting sleeves 53 are respectively evenly fixed on several horizontal fixing strips 52, and several mounting sleeves 53 respectively correspond to several screw holes 511. The inner ends of several bolts 54 respectively pass through several mounting sleeves 53 and are threadedly connected to the corresponding screw holes 511.

[0021] A number of anchor bolts 7 are arranged radially along the cross-section of the tunnel body 1; at least one chain 6 is fixed on the outer wall of the plugging plate 3 close to the inner wall of the tunnel body 1, and the chain 6 is buckled with the adjacent anchor bolt 7, which further strengthens the firmness of the grout stop wall and can improve the water-stop ability of the grout stop wall;

[0022] The working principle is as follows:

[0023] Customize the sealing strip 1-2, the plugging plate 3, the sealing strip 2-4, and the backrest structure 5 in the factory, and number several plugging plates 3; when making the grout stop wall, first fix the sealing strip 1-2 at the required position on the inner wall of the tunnel body 1, and then splice the numbered plugging plates 3 in sequence one by one. At the same time, set the vertical fixing strips 51 in the backrest structure 5, and abut each of the multiple vertical fixing strips 51 against both sides of the plugging plate 3 to clamp and fix the plugging plate 3. After all the plugging plates 3 are spliced, fix the multiple vertical fixing strips 51 evenly (bolted connection) in the tunnel body 1, then fix a plurality of mounting sleeves 53 on the horizontal fixing strips 52, and then arrange the multiple horizontal fixing strips 52 horizontally outside the multiple vertical fixing strips 51 respectively so that the mounting sleeves 53 are aligned with the screw holes 511 one by one. Then pass the bolts 54 through the mounting sleeves 53 and thread them into the screw holes 511 to fix the horizontal fixing strips 52 on the vertical fixing strips 51. Finally, fix the outer ends of the horizontal fixing strips 52 (bolted connection) in the tunnel body 1, thus completing the production of a grout stop wall.

[0024] When it is not necessary to disassemble the grout stop wall in the later stage, the grout stop wall can be disassembled in the reverse order of the above.

Claims

1. A modular grout stopping wall, characterized in that Including: A tunnel body (1), a sealing plate (3), a sealing structure, and a back rib structure (5). There are several pieces of the sealing plate (3), which are spliced one by one in the tunnel body (1). The sealing structure is arranged between the sealing plates (3), between the sealing plate (3) and the tunnel body (1). The several sealing plates (3) and the sealing structure are used to seal the tunnel body (1). There are two back rib structures (5), which respectively abut against both sides of the several sealing plates (3), and the outer ends of the back rib structures (5) are fixedly connected to the tunnel body (1).

2. The modular grout stopping wall according to claim 1, characterized in that: The sealing structure includes a first sealing strip (2) and a second sealing strip (4). The first sealing strip (2) is arc-shaped and fixed on the inner wall of the tunnel body (1). There are several second sealing strips (4), which are respectively fixed on the peripheries of the several sealing plates (3). The second sealing strips (4) on adjacent two sealing plates (3) are in contact with each other. The first sealing strip (2) is in contact with the adjacent second sealing strip (4).

3. The modular grout stopping wall according to claim 1, wherein: The back rib structure (5) includes several vertical fixing strips (51), a horizontal fixing strip (52), an installation sleeve (53), and a bolt (54). The several vertical fixing strips (51) are respectively vertically and evenly abutted against both sides of the several sealing plates (3), and the ends of the vertical fixing strips (51) are fixedly connected to the inner wall of the tunnel body (1). Several screw holes (511) are evenly formed in each of the vertical fixing strips (51). The several horizontal fixing strips (52) are horizontally and evenly installed on the several vertical fixing strips (51), and the ends of the horizontal fixing strips (52) are fixedly connected to the inner wall of the tunnel body (1). The several installation sleeves (53) are respectively evenly fixed on the several horizontal fixing strips (52), and the several installation sleeves (53) respectively correspond to the several screw holes (511). The inner ends of the several bolts (54) respectively pass through the several installation sleeves (53) and are threadedly connected to the corresponding screw holes (511).

4. A modular grout stop wall according to claim 1, characterized in that: The sealing plate (3) is a steel plate.

5. A modular grout stopping wall according to claim 1, characterized in that: Several anchor bolts (7) are arranged radially along the cross-section of the tunnel body (1); At least one chain (6) is fixedly arranged on the outer wall of the sealing plate (3) close to the inner wall of the tunnel body (1), and the chain (6) is buckled with the adjacent anchor bolt (7).

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