Subway segment

Abstract

The utility model discloses a subway segment relates to shield tunnel engineering field, and its technical scheme main points are: including a plurality of cross section is arc setting's segment main part, the arc convex surface of segment main part is equipped with a plurality of support piece, and the arc concave surface of another segment main part is mutually resisted to the support piece, the utility model discloses when a plurality of segment main part stack for transportation or deposit, through the support piece of segment main part upper self, make the support piece of the segment main part located in the arc concave surface of below segment main part mutually resisted, thereby the arc convex surface of above segment main part does not carry out the resistance of larger area with the arc concave surface of below segment main part, and then when the segment main part in below segment main part deviates, through the support piece, can reduce the abrasion of the arc convex surface of above segment main part, can reduce the damage of segment main part, and the worker need not move another support rod and support between two segment main parts, can alleviate the labor intensity of worker.

Description

Technical Field

[0001] This utility model relates to the field of shield tunnel engineering, and more specifically, it relates to a subway segment. Background Technology

[0002] Segment construction is the main assembly component of shield tunneling. It is the innermost barrier of the tunnel and bears the responsibility of resisting soil pressure, groundwater pressure and some special loads. Segment construction is the permanent lining structure of shield tunnels. The quality of shield tunnel segments is directly related to the overall quality and safety of the tunnel. The cross-section of the segment is set in an arc shape, and several segments can be spliced ​​and installed in a ring.

[0003] When multiple pipe segments are stacked for transportation or storage, if the upper and lower pipe segments are stacked directly, the convex surface of the upper pipe segment will come into large contact with the concave surface of the lower pipe segment. As a result, when the upper pipe segment is placed on the lower pipe segment and the upper pipe segment shifts, the convex surface of the upper pipe segment will be severely worn, which may cause damage to most parts of the pipe segment. Therefore, workers will place support rods between the upper and lower pipe segments to prevent them from coming into large contact with each other. When there are too many pipe segments, the number of support rods required will also increase, requiring workers to invest extra time and physical strength to move the support rods, thus increasing the workload of the workers.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a subway tunnel segment.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a subway tunnel segment, comprising several tunnel segment bodies with arc-shaped cross sections, and several support members provided on the arc-shaped convex surface of the tunnel segment body, wherein the support members abut against the arc-shaped concave surface of another tunnel segment body.

[0007] The present invention is further configured such that: the support member includes a support plate and a support block, the width of the support block is greater than the width of the support plate, the support block is disposed on the arc-shaped convex surface of the tube body, and a groove for the support plate to slide into is provided on the end face of the support block, and a positioning member for limiting the relative position of the support plate and the support block is provided between the support plate and the support block.

[0008] The present invention is further configured such that: the positioning element is a screw, the outer wall of the support block is provided with a through hole communicating with the slide groove, the support plate is provided with a threaded hole, and one end of the screw passes through the through hole and is threadedly connected to the threaded hole.

[0009] The present invention is further configured such that: a plurality of receiving grooves are provided on the arc-shaped convex surface of the tube segment body, the width of the receiving groove is greater than the width of the support block, and the support block is fixedly connected to the inner end face of the receiving groove.

[0010] The present invention is further configured such that: a plurality of grooves for bottom embedding of the support plate are provided on the arc-shaped concave surface of the tube body.

[0011] The present invention is further configured such that the number of the support plate and the support block are both four, and they are arranged symmetrically.

[0012] The present invention is further configured such that the main body of the pipe segment is made of impermeable concrete.

[0013] In summary, this utility model has the following beneficial effects: When multiple segments are stacked vertically for transportation or storage, the built-in support on the segments ensures that the support on the upper segment abuts against the concave surface of the lower segment, thus preventing a large-area contact between the convex surface of the upper segment and the concave surface of the lower segment. Consequently, when the upper segment shifts relative to the lower segment, the support reduces wear on the convex surface of the upper segment, minimizing damage to the segments. Furthermore, it allows for relatively stable placement of multiple segments vertically, eliminating the need for additional support rods to support the segments and reducing worker workload. Attached Figure Description

[0014] Figure 1 is a partial exploded view of this utility model;

[0015] Figure 2 is an enlarged schematic diagram of part A in Figure 1;

[0016] Figure 3 is a schematic diagram of the arc-shaped concave surface of the main body of the tube segment in this utility model.

[0017] In the diagram: 1. Main body of the tunnel segment; 2. Support plate; 3. Support block; 4. Slide groove; 5. Screw; 6. Through hole; 7. Receiving groove; 8. Embedded groove. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0019] As shown in Figures 1 to 3, a subway tunnel segment includes several tunnel segment bodies 1 with arc-shaped cross-sections. Several support members are provided on the arc-shaped convex surface of each tunnel segment body 1. These support members abut against the arc-shaped concave surface of another tunnel segment body 1. Each support member includes a support plate 2 and a support block 3. The width of the support block 3 is greater than the width of the support plate 2. One end face of the support block 3 is arc-shaped. The support block 3 is pre-embedded on the arc-shaped convex surface of the tunnel segment body 1, and a groove 4 is provided on the end face of the support block 3 for the support plate 2 to slide into. By sliding the support plate 2, the arc-shaped surface of the support plate 2 engages with the arc-shaped concave surface of the tunnel segment body 1 located below it. When the arc-shaped surface of the support plate 2 engages with the arc-shaped concave surface of the tunnel segment body 1 located below it, a gap exists between the upper and lower tunnel segment bodies 1. A positioning element, a screw 5, is provided between the support plate 2 and the support block 3 to limit their relative position. The outer wall of the tube segment body 1 has a through hole 6 that communicates with the slide groove 4. The support plate 2 has a threaded hole. One end of the screw 5 passes through the through hole 6 and is threaded into the threaded hole. The arc-shaped convex surface of the tube segment body 1 has several receiving grooves 7. The width of the receiving groove 7 is greater than the width of the support block 3. The support block 3 is pre-embedded on the inner end face of the receiving groove 7. The arc-shaped concave surface of the tube segment body 1 has several embedding grooves 8 for the bottom of the support plate 2 to be embedded. There are four support plates 2 and four support blocks 3, and they are arranged symmetrically.

[0020] As shown in Figures 1 to 3, when multiple segment bodies 1 are stacked vertically for transportation or storage, the four support plates 2 on the arc-shaped convex surface of one segment body 1 are first slid within the support block 3, causing the support plates 2 to gradually disengage from the groove 4 until the threaded holes on the support plates 2 coincide with the through holes 6 on the support block 3. At this point, a portion of the support plate 2 is still contained within the groove 4. Then, a screw 5 passes through the through hole 6 and is threaded into the threaded hole, allowing the support plate 2 to be stably contained within the support block 3. At this point, the arc-shaped surface of the support plate 2 protrudes beyond the arc-shaped convex surface of the segment body 1. Next, the segment body 1 with the support plate 2 protruding beyond the arc-shaped convex surface is snapped onto the arc-shaped concave surface of other segment bodies 1. At this point, the bottom arc-shaped surface of the support plate 2 is embedded into the groove 8 of the arc-shaped concave surface of other segment bodies 1 located below, preventing the segment body 1 located above from shifting onto the segment body 1 below, thus raising the segment body 1 above. The stability of the upper and lower segment bodies 1 is ensured by placing them on the concave arc surface of the lower segment body 1, thus allowing the upper and lower segment bodies 1 to be placed stably. At this time, there is a gap between the upper and lower segment bodies 1, which reduces the wear of the convex arc surface of the upper segment body 1 when the lower segment body 1 shifts. This prevents the convex arc surface of the upper segment body 1 from making large-area contact with the concave arc surface of the lower segment body 1, reducing damage to the segment body 1. Moreover, workers do not need to move additional support rods to support the upper and lower segment bodies 1, which reduces the labor intensity of workers. The support block 3 is accommodated in the receiving groove 7, so that the support block 3 does not protrude from the convex arc surface of the segment body 1 and does not affect the ring-shaped installation of several segment bodies 1.

[0021] The main body of the tunnel segment 1 is made of impermeable concrete. Impermeable concrete improves the density of the concrete and the pore structure, thereby reducing the seepage channels and improving the impermeability of the main body of the tunnel segment 1.

[0022] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A subway tunnel segment, comprising several segment bodies (1) with arc-shaped cross-sections, characterized in that: The segment body (1) has several supporting members on its arc-shaped convex surface. The supporting members abut against the arc-shaped concave surface of another segment body (1). The supporting members include a supporting plate (2) and a supporting block (3). The width of the supporting block (3) is greater than the width of the supporting plate (2). The supporting block (3) is set on the arc-shaped convex surface of the segment body (1). A groove (4) for the supporting plate (2) to slide into is opened on the end face of the supporting block (3). A positioning member for limiting the relative position of the two is provided between the supporting plate (2) and the supporting block (3).

2. The subway tunnel segment according to claim 1, characterized in that: The positioning component is a screw (5). The outer wall of the support block (3) is provided with a through hole (6) that communicates with the slide groove (4). The support plate (2) is provided with a threaded hole. One end of the screw (5) passes through the through hole (6) and is threaded into the threaded hole.

3. The subway tunnel segment according to claim 1, characterized in that: The main body (1) of the tube segment has several receiving grooves (7) on its arc-shaped convex surface. The width of the receiving groove (7) is greater than the width of the support block (3). The support block (3) is fixedly connected to the inner end face of the receiving groove (7).

4. The subway tunnel segment according to claim 3, characterized in that: The main body of the tube segment (1) has several grooves (8) for the bottom of the support plate (2) to be embedded in the arc-shaped concave surface.

5. The subway tunnel segment according to claim 4, characterized in that: The number of support plates (2) and support blocks (3) are both four, and they are arranged symmetrically.

6. The subway tunnel segment according to claim 1, characterized in that: The main body of the segment (1) is made of impermeable concrete.

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