Secondary grouting slurry collecting device for shield segment

Abstract

The utility model relates to the field of segment grouting, in particular to a shield segment secondary grouting slurry collecting device, which comprises: a slurry collecting box fixed below a grouting valve, including oppositely arranged first and second sides, the first side is arranged closely to a shield segment, and the second side extends to below a grouting pipe; a flexible cover covers the top opening of the slurry collecting box. The utility model can collect secondary grouting slurry of a shield segment by arranging a slurry collecting box, and the pollution of the shield segment by the slurry can be further reduced by arranging the first side closely to the shield segment. The second side extends to below the grouting pipe, which can collect as much slurry as possible that overflows from the grouting valve and the joint between the grouting pipe and the shield segment. Finally, the flexible cover can enclose the slurry in the slurry collecting box as much as possible, further reducing the pollution of the shield segment by the slurry eruption, thereby improving the appearance quality of the segment and reducing the cost of later cleaning and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of tunnel segment grouting, and in particular to a grout collection device for secondary grouting of tunnel segments. Background Technology

[0002] In shield tunnel construction, secondary grouting of tunnel segments is a crucial step in ensuring structural stability and waterproofing performance. However, traditional grouting techniques have significant drawbacks. During the grouting process, grout easily overflows from grouting valves and pipe joints, contaminating the segment surface. This not only severely affects the appearance of the segments but may also increase subsequent cleaning and maintenance costs. Furthermore, grout residue can lead to color differences and stains on the segment surface, reducing the overall aesthetic appeal of the project, especially for projects with high aesthetic requirements, such as urban rail transit. This technical challenge urgently needs to be addressed through process improvements or the development of new equipment. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies where grout easily overflows from the grouting valves and grouting pipe joints during secondary grouting of tunnel segments, contaminating the surface of the tunnel segments, and to provide a grout collection device for secondary grouting of tunnel segments.

[0004] A grout collection device for secondary grouting of tunnel segments includes: The slurry collection box is fixed below the grouting valve and includes a first side and a second side arranged opposite to each other. The first side is set close to the shield tunnel segment, and the second side extends to the bottom of the grouting pipe. A flexible cover is provided to cover the top opening of the slurry collection box.

[0005] Preferably, the shape of the first side surface matches the shape of the tunnel segment.

[0006] Preferably, the first side surface is an arc-shaped surface.

[0007] Preferably, the slurry collection box is detachably and fixedly connected to the bottom of the grouting valve.

[0008] Preferably, the slurry collection box is mounted on the grouting valve.

[0009] Preferably, the slurry collection box includes two hanging parts, one of which is hung on the grouting valve and the other of which is hung on the grouting pipe.

[0010] Preferably, the slurry collection box is a plastic box with an open top.

[0011] Preferably, the flexible cover is a plastic cover or a rubber cover.

[0012] Preferably, the flexible cover is a transparent structure.

[0013] Preferably, the flexible cover is detachably fixed to the top opening.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a grout collection device for secondary grouting of tunnel segments. By setting up a grout collection box, it can collect the grout from secondary grouting of tunnel segments. By setting the first side close to the tunnel segment, it can further reduce the contamination of the tunnel segment by the grout. By extending the second side to the bottom of the grouting pipe, it can collect as much grout as possible from the grouting valve and the joint of the grouting pipe. Finally, by setting up a flexible cover, it can seal the grout in the grout collection box as much as possible, further reducing the contamination of the tunnel segment by the grout eruption.

[0015] This invention can collect the grout overflowing from the grouting valve and grouting pipe joints during the secondary grouting of tunnel segments, reducing the contamination of the segment surface by the grout, improving the appearance quality of the segments, and reducing the cost of subsequent cleaning and maintenance. Attached Figure Description

[0016] Figure 1 This is a side view of the secondary grouting slurry collection device for tunnel segments according to the present invention.

[0017] Figure 2 This is a front view of the secondary grouting slurry collection device for tunnel segments according to the present invention.

[0018] Marked in the image: 1-Slurry collection box, 11-First side, 12-Second side, 13-Bottom, 14-Top opening, 2-Flexible cover, 3-Shield segment, 4-Grouting channel, 5-Grouting valve, 6-Grouting pipe, 7-Slurry. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0020] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer" used in the description of specific embodiments of this utility model to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is usually placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0022] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0023] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0024] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0025] Example 1 like Figure 1 , Figure 2 As shown, a grout collection device for secondary grouting of tunnel segments includes a grout collection box 1 and a flexible cover 2.

[0026] The slurry collection box 1 is a box with an open top. The slurry collection box 1 includes four sides (first side 11, second side 12, third side, and fourth side, wherein the first side 11 and the second side 12 are arranged opposite to each other, and the third side and the fourth side are arranged opposite to each other) and a bottom surface 13. The slurry collection box 1 is provided with a top opening 14, and the secondary grouting slurry 7 of the shield tunnel segment 3 flows into the slurry collection box 1 from the top opening 14.

[0027] During the secondary grouting process of the shield tunnel segment 3, the grout 7 enters the shield tunnel segment 3 sequentially through the grouting pipe 6, the grouting valve 5, and the grouting channel 4. However, during the secondary grouting process, the grout 7 is very likely to overflow from the joint between the grouting valve 5 and the grouting pipe 6. Therefore, this utility model places the grout collection box 1 below the grouting valve 5, and the second side 12 extends to the bottom of the grouting pipe 6. Thus, it can collect as much grout 7 as possible from the joint between the grouting valve 5 and the grouting pipe 6.

[0028] To minimize contamination of the shield tunnel segment 3 by overflowing slurry 7, the present invention places the first side surface 11 in close contact with the shield tunnel segment 3. Furthermore, the shape of the first side surface 11 matches the shape of the shield tunnel segment 3; when the shield tunnel segment 3 has an arcuate shape, the first side surface 11 is also an arcuate surface.

[0029] In a preferred embodiment, the slurry collection box 1 can be detachably and fixedly connected to the lower part of the grouting valve 5, for example, by hanging the slurry collection box 1 on the grouting valve 5. This facilitates the installation, removal, and replacement of the slurry collection box 1. Therefore, slurry collection boxes 1 of different shapes and sizes can be manufactured to suit shield tunnel segments 3 of different shapes and sizes. Moreover, the aforementioned detachable connection method allows for timely replacement of the slurry collection box 1 when it is about to be full.

[0030] In a further preferred embodiment, the slurry collection box 1 includes two hanging parts, one of which is hung on the grouting valve 5 and the other is hung on the grouting pipe 6, thereby further ensuring the installation stability of the slurry collection box 1. The hanging part can be integrally formed with the side of the slurry collection box 1, and the specific form of the hanging part is not limited, as long as it can enable the slurry collection box 1 to be hung on the grouting valve 5 and the grouting pipe 6.

[0031] In a preferred embodiment, the slurry collection box 1 is a plastic box with an open top. In a further preferred embodiment, the slurry collection box 1 is a transparent plastic structure, which facilitates observation of the slurry collection.

[0032] The flexible cover 2 covers the top opening 14 of the slurry collection box 1, and is used to enclose the slurry 7 within the slurry collection box 1 as much as possible, further reducing the contamination of the shield tunnel segment 3 by the slurry 7 ejection. The flexible cover 2 can be one or two pieces, as long as the position of the grouting valve 5 and grouting pipe 6 joint is reserved. The flexible cover 2 can be arranged at intervals from the grouting valve 5 and grouting pipe 6 joint and extend to the first side 11 or the second side 12. For example, the number of flexible covers 2 is one piece, arranged at 3cm intervals from the grouting valve 5 and grouting pipe 6 joint and extending to the second side 12. For example, the number of flexible covers 2 is two pieces, one of which is arranged at 3cm intervals from the grouting valve 5 and grouting pipe 6 joint and extends to the second side 12, and the other of which is arranged at 3cm intervals from the grouting valve 5 and grouting pipe 6 joint and extends to the first side 11.

[0033] In a preferred embodiment, the flexible cover 2 is a flexible cover such as a plastic cover or a rubber cover.

[0034] In a preferred embodiment, the flexible cover 2 is a transparent structure, which facilitates observation of the slurry collection status of the slurry collection box 1, allowing for timely replacement of the slurry collection box 1 when it is about to be full.

[0035] In a preferred embodiment, the flexible cover 2 is detachably fixed to the top opening 14, thereby increasing the connection stability of the flexible cover 2 and preventing it from slipping off. The detachable connection method includes snap-fitting, etc. By detachably fixing the flexible cover 2 to the top opening 14, the slurry 7 can be further contained within the slurry collection box 1, further reducing the contamination of the tunnel segment 3 by the slurry 7 eruption. This utility model provides a secondary grouting slurry collection device for tunnel segments. By setting up a slurry collection box 1, it can collect the secondary grouting slurry 7 of the tunnel segment 3. By setting the first side 11 close to the tunnel segment 3, it can further reduce the contamination of the tunnel segment 3 by the slurry 7. By extending the second side 12 to the bottom of the grouting pipe 6, it can collect as much of the slurry 7 overflowing from the grouting valve 5 and the joint of the grouting pipe 6 as possible. Finally, by setting up a flexible cover 2, it can seal the slurry 7 as much as possible in the slurry collection box 1, further reducing the contamination of the tunnel segment 3 by the slurry 7 spray.

[0036] This invention can collect the grout overflowing from the joint of the grouting valve 5 and grouting pipe 6 during the secondary grouting of the shield tunnel segment 3, reduce the pollution of the shield tunnel segment 3 surface by the grout 7, improve the appearance quality of the shield tunnel segment 3, and reduce the later cleaning and maintenance costs.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grout collection device for secondary grouting of tunnel segments, characterized in that, include: The slurry collection box (1) is fixed below the grouting valve (5) and includes a first side (11) and a second side (12) arranged opposite to each other. The first side (11) is set close to the shield tunnel segment (3) and the second side (12) extends to the bottom of the grouting pipe (6). A flexible cover (2) covers the top opening (14) of the slurry collection box (1).

2. The grout collection device for secondary grouting of tunnel segments according to claim 1, characterized in that, The shape of the first side (11) matches the shape of the shield segment (3).

3. The shield tunnel segment secondary grouting slurry collection device according to claim 2, characterized in that, The first side (11) is an arc-shaped surface.

4. The grout collection device for secondary grouting of tunnel segments according to claim 1, characterized in that, The slurry collection box (1) is detachably and fixedly connected to the bottom of the grouting valve (5).

5. The shield tunnel segment secondary grouting slurry collection device according to claim 4, characterized in that, The slurry collection box (1) is hung on the grouting valve (5).

6. The grout collection device for secondary grouting of tunnel segments according to claim 5, characterized in that, The slurry collection box (1) includes two hanging parts, one of which is hung on the grouting valve (5) and the other of which is hung on the grouting pipe (6).

7. The grout collection device for secondary grouting of tunnel segments according to claim 1, characterized in that, The slurry collection box is a plastic box with an open top.

8. The shield tunnel segment secondary grouting slurry collection device according to any one of claims 1-7, characterized in that, The flexible cover (2) is a plastic cover or a rubber cover.

9. The grout collection device for secondary grouting of tunnel segments according to claim 8, characterized in that, The flexible cover (2) is a transparent structure.

10. The grout collection device for secondary grouting of tunnel segments according to claim 9, characterized in that, The flexible cover (2) is detachably fixed to the top opening (14).

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