Material bracket for shield segments

Abstract

The utility model discloses a material bracket for shield segments, and relates to the technical field of shield tunnel construction. The first limiting piece is slidably arranged between the inner side and the outer side of the supporting body in a penetrating manner; the first limiting piece is slidably arranged between the inner side and the outer side of the supporting body in a penetrating mode, the second limiting piece is slidably arranged between the inner side and the outer side of the supporting body in a penetrating mode, the sliding direction of the first limiting piece is perpendicular to that of the second limiting piece, and locking pieces are arranged between the first limiting piece and the supporting body and between the second limiting piece and the supporting body and used for fixing the lengths of the first limiting piece and the second limiting piece extending out of the supporting body; the material bracket is simple and convenient to operate, the whole material bracket is simple in structure and convenient to disassemble, assemble and move, the purpose of storing materials on the inner wall of the shield segment is achieved, the existing structure of the shield segment is completely utilized, the shield segment or an embedded part in the shield segment does not need to be damaged, and the structural integrity of the shield segment is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of shield tunnel construction technology, specifically to a material support for shield tunnel segments. Background Technology

[0002] Shield tunnel segments are the main assembly components in shield tunneling. They are prefabricated arc-shaped sheet components made of concrete or steel, which are fastened with arc bolts and assembled to form a ring-shaped tunnel lining structure. They are the innermost barrier of the tunnel and bear the responsibility of resisting soil pressure, rainwater pressure, and some special loads.

[0003] After the shield tunnel construction is completed, the connecting passage between the two lines needs to be constructed. Most connecting passages are located in the middle of the shield tunnel line. The limited space around the connecting passage makes it impossible to store materials such as steel bars. They can only be stored using shield segments. The shield segments are all arc-shaped. If materials are placed directly on the shield segments, the arc structure of the shield segments will cause the materials to accumulate at the bottom of the shield tunnel. Excessive accumulation of materials will block the construction passage, which will seriously hinder rescue operations in the event of a fire or other emergencies. Moreover, the connecting passage requires a large amount of steel bars and the construction speed is fast. The method of transporting materials as needed will lead to a shortage of materials due to the long transportation route from the ground to the connecting passage. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a material support for tunnel segments to solve the problem of material supply shortage caused by the difficulty of material storage during the construction of connecting passages in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A material support for tunnel segments, comprising:

[0007] Support structure;

[0008] The first limiting member slides between the inner and outer sides of the support; and

[0009] The second limiting member slides between the inner and outer sides of the support body. The sliding directions of the first limiting member and the second limiting member are perpendicular. Both the first limiting member and the second limiting member are provided with locking members between themselves and the support body. The two locking members are used to fix the length of the first limiting member and the second limiting member extending out of the support body.

[0010] Compared with the prior art, this utility model has the following advantages: In use, the two locking parts are loosened, and the lengths of the first and second limiting parts extending out of the support body are adjusted so that the first limiting part abuts against the inner wall of the shield tunnel segment, while the second limiting part abuts against the inner wall of the bolt mounting groove for installing the arc bolts. The first limiting part is kept in a horizontal state and the second limiting part is kept in a vertical state. Then, the two locking parts are adjusted to fix the state of the first and second limiting parts to complete the installation of one material bracket. Then, the remaining material brackets are installed sequentially along the length of the shield tunnel in the above manner, and the support height of several material brackets is kept the same during the installation process. The operation is simple and convenient. The entire material bracket structure is simple, easy to disassemble and move, and realizes the purpose of storing materials on the inner wall of the shield tunnel segment. It also makes full use of the existing structure of the shield tunnel segment without damaging the shield tunnel segment or embedding parts in the shield tunnel segment, thus ensuring the structural integrity of the shield tunnel segment.

[0011] Preferably, the support body includes an L-shaped plate, the vertical free end of the L-shaped plate is provided with a first groove along its length, the horizontal free end of the L-shaped plate is provided with a second groove along its length, the first limiting member slides through the inner and outer sides of the first groove, and the second limiting member slides through the inner and outer sides of the second groove.

[0012] Preferably, the first limiting member includes a first telescopic plate that slides between the inner and outer sides of the first slide groove and a support rod that is fixedly connected to one end of the first telescopic plate located outside the first slide groove, wherein the support rod and the first telescopic plate are arranged in a T-shape.

[0013] Preferably, the second limiting member includes a second telescopic plate that slides between the inner and outer sides of the second slide groove and a support foot that is fixedly connected to one end of the second telescopic plate located outside the second slide groove. The support foot and the second telescopic plate are arranged linearly, and the two locking members are correspondingly arranged between the L-shaped plate and the first and second telescopic plates.

[0014] Preferably, each of the locking components includes a locking bolt threadedly connected to the L-shaped plate, the locking bolt being used to freely pass through the first or second slide groove and abut against the side wall of the first or second telescopic plate.

[0015] Preferably, the cross-section of the support rod perpendicular to its axial direction is semi-circular, the first telescopic plate is fixedly connected to the plane of the support rod, and the arc surface of the support rod is arranged away from the telescopic plate.

[0016] Preferably, the width of the support leg gradually decreases in the direction away from the second telescopic plate.

[0017] Preferably, a reinforcing rib is fixedly installed between the vertical and horizontal sections of the L-shaped plate. The reinforcing rib is located within the included angle of the L-shaped plate, and a plurality of weight-reducing holes are spaced apart along its length on the reinforcing rib.

[0018] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention.

[0020] Figure 2 for Figure 1 The front view.

[0021] Figure 3 for Figure 2 A sectional view.

[0022] Figure 4 for Figure 1 Assembly diagram.

[0023] The numbers in the diagram are as follows: 1. L-shaped plate; 11. First sliding groove; 12. Second sliding groove; 2. First telescopic plate; 21. Support rod; 3. Second telescopic plate; 31. Support foot; 4. Locking bolt; 5. Reinforcing rib; 51. Weight reduction hole; 6. Shield segment; 61. Bolt mounting groove. Detailed Implementation

[0024] To make the technical means, creative features, achieved objectives and functions of this utility model clearer and easier to understand, the utility model will be further described below with reference to the accompanying drawings and specific embodiments:

[0025] like Figure 1-4 As shown, an embodiment of this utility model provides a material support for tunnel segments, comprising: a support body; a first limiting member that slides between the inner and outer sides of the support body; and a second limiting member that slides between the inner and outer sides of the support body. The sliding directions of the first limiting member and the second limiting member are perpendicular. Both the first limiting member and the second limiting member are provided with locking members between themselves and the support body. The two locking members are used to fix the length of the first limiting member and the second limiting member extending out of the support body.

[0026] Loosen the two locking parts and adjust the length of the first and second limiting parts extending out of the support body so that the first limiting part abuts against the inner wall of the shield segment 6, and the second limiting part abuts against the inner wall of the bolt mounting groove 61 for installing the arc bolts. Keep the first limiting part horizontal and the second limiting part vertical. Then adjust the two locking parts to fix the state of the first and second limiting parts to complete the installation of one material bracket. Then install the remaining material brackets in sequence along the length of the shield tunnel in the same way, and ensure that the support body height of several material brackets is the same during the installation process. The operation is simple and convenient. The entire material bracket structure is simple, easy to disassemble and move, and realizes the purpose of storing materials on the inner wall of the shield segment 6. It makes full use of the existing structure of the shield segment 6 without damaging the shield segment 6 or embedding parts in the shield segment 6, thus ensuring the structural integrity of the shield segment 6.

[0027] The bolt mounting groove 61 is a groove-like structure opened on the inner wall of the shield tunnel segment 6 to facilitate the tightening of the arc bolts to the shield tunnel segment 6, while ensuring that the arc bolts do not protrude from the inner wall of the shield tunnel segment 6 after installation.

[0028] like Figure 1-3 As shown, according to another embodiment of the present invention, the material support for tunnel segments further optimizes the support body, which includes an L-shaped plate 1. The vertical free end of the L-shaped plate 1 has a first groove 11 along its length, and the horizontal free end of the L-shaped plate 1 has a second groove 12 along its length. The first limiting member slides between the inner and outer sides of the first groove 11, and the second limiting member slides between the inner and outer sides of the second groove 12. The L-shaped plate 1 can provide a larger space for material placement.

[0029] like Figure 1-3 As shown, according to another embodiment of the present invention, the material support for tunnel segments further optimizes the first limiting member, which includes a first telescopic plate 2 slidably passing between the inner and outer sides of a first sliding groove 11 and a support rod 21 fixedly connected to one end of the first telescopic plate 2 located outside the first sliding groove 11. The support rod 21 and the first telescopic plate 2 are arranged in a T-shape, and the arrangement of the support rod 21 can ensure that the material support will not tip over during use. Preferably, the cross section of the support rod 21 perpendicular to its axial direction is semi-circular, the first telescopic plate 2 is fixedly connected to the plane of the support rod 21, and the arc surface of the support rod 21 is arranged away from the telescopic plate, so that the support rod 21 can better fit against the inner wall of the tunnel segment 6.

[0030] like Figure 1-3As shown, according to another embodiment of the present invention, the material support for tunnel segments further optimizes the second limiting member, which includes a second telescopic plate 3 slidably passing between the inner and outer sides of the second slide groove 12 and a support foot 31 fixedly connected to one end of the second telescopic plate 3 located outside the second slide groove 12. The support foot 31 and the second telescopic plate 3 are arranged linearly, and the two locking members are correspondingly arranged between the L-shaped plate 1 and the first telescopic plate 2 and the second telescopic plate 3. Preferably, the width of the support foot 31 gradually decreases in the direction away from the second telescopic plate 3, so that the support foot 31 can be better inserted into the bolt mounting groove 61 for support.

[0031] like Figure 1-2 As shown, according to another embodiment of the present invention, the material support for tunnel segments is further optimized in terms of its locking components. Each locking component includes a locking bolt 4 that is threadedly connected to an L-shaped plate 1. The locking bolt 4 is used to freely penetrate into the first sliding groove 11 or the second sliding groove 12 and abut against the side wall of the first telescopic plate 2 or the second telescopic plate 3.

[0032] like Figure 2-3 As shown, according to another embodiment of the present invention, the material support for tunnel segments preferably includes a reinforcing rib 5 fixedly installed between the vertical and horizontal sections of the L-shaped plate 1. The reinforcing rib 5 is located within the included angle of the L-shaped plate 1, and a plurality of weight-reducing holes 51 are spaced apart along its length on the reinforcing rib 5. The reinforcing rib 5 can improve the support strength of the L-shaped plate 1, while the plurality of weight-reducing holes 51 can reduce the weight brought by the reinforcing rib 5. Furthermore, the reinforcing rib 5 needs to have an appropriate number of weight-reducing holes 51 while ensuring the support strength.

[0033] The working principle of this utility model is as follows: When using this utility model, loosen the two locking bolts 4, slide the first telescopic plate 2 and the second telescopic plate 3 so that the first support rod 21 abuts against the inner wall of the shield tunnel segment 6, and at the same time, the support foot 31 is also inserted into the bolt mounting groove 61 and abuts against the inner wall. It is also necessary to ensure that the vertical section of the L-shaped plate 1 always remains horizontal. Then tighten the two locking bolts 4 to fix the first telescopic plate 2 and the second telescopic plate 3, thereby completing the installation of one material bracket. Then, install the remaining material brackets in sequence along the length of the shield tunnel in the above manner, and it is necessary to keep the vertical section height of the L-shaped plate 1 of several material brackets consistent. After the installation is completed, materials can be placed between several material brackets.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A material carriage for a shield segment, characterized in that, The utility model relates to a support body, a first limiting piece sliding between the inner and outer sides of the support body, and a second limiting piece sliding between the inner and outer sides of the support body, the sliding direction of the first limiting piece being perpendicular to that of the second limiting piece, and each of the first limiting piece and the second limiting piece being provided with a locking piece between the support body, the two locking pieces being used to fix the length of the first limiting piece and the second limiting piece extending out of the support body. The support body comprises an L-shaped plate (1), the free end of the vertical section of the L-shaped plate (1) being provided with a first sliding groove (11) along the length direction, the free end of the horizontal section of the L-shaped plate (1) being provided with a second sliding groove (12) along the length direction, the first limiting piece sliding between the inner and outer sides of the first sliding groove (11), and the second limiting piece sliding between the inner and outer sides of the second sliding groove (12). The first limiting piece comprises a first telescopic plate (2) sliding between the inner and outer sides of the first sliding groove (11) and a support rod (21) fixedly connected to one end of the first telescopic plate (2) outside the first sliding groove (11), the support rod (21) and the first telescopic plate (2) being arranged in a T shape. The second limiting piece comprises a second telescopic plate (3) sliding between the inner and outer sides of the second sliding groove (12) and a support leg (31) fixedly connected to one end of the second telescopic plate (3) outside the second sliding groove (12), the support leg (31) and the second telescopic plate (3) being arranged in a linear shape, and the two locking pieces being arranged one by one between the L-shaped plate (1) and the first telescopic plate (2) and the second telescopic plate (3). Each of the locking pieces comprises a locking bolt (4) threadedly connected to the L-shaped plate (1), the locking bolt (4) being used to freely penetrate into the first sliding groove (11) or the second sliding groove (12) and abut against the side wall of the first telescopic plate (2) or the second telescopic plate (3).

2. A material carriage for a shield segment according to claim 1, characterized in that The cross section of the support rod (21) perpendicular to the axial direction is semicircular, the first telescopic plate (2) is fixedly connected to the plane of the support rod (21), and the arc surface of the support rod (21) is arranged away from the telescopic plate.

3. A material carriage for a shield segment according to claim 2, wherein, The width of the support leg (31) gradually decreases in the direction away from the second telescopic plate (3).

4. A material carriage for a shield segment according to claim 3, wherein, The vertical section and the horizontal section of the L-shaped plate (1) are fixedly provided with a reinforcing rib plate (5) inside the included angle of the L-shaped plate (1), and a plurality of weight-reducing holes (51) are arranged on the reinforcing rib plate (5) along the length direction.

5. A material carriage for a shield segment according to claim 4, wherein, ​ 6. A material carriage for a shield segment according to claim 3, wherein, ​ 7. A material carriage for a shield segment according to claim 4, wherein, ​ 8. A material carriage for a shield segment according to claim 2, wherein, ​

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