Equipment box support suitable for embedded positioning holes of shield segments

Abstract

The utility model relates to the technical field of shield tunnels, in particular to an equipment box support suitable for a shield segment pre-buried positioning hole, which comprises two Z-shaped steel stand columns, the Z-shaped steel stand columns are matched with the shield segment in structural shape, long round holes are formed in the two Z-shaped steel stand columns, and the long round holes are communicated with the Z-shaped steel stand columns. The Z-shaped steel stand columns are fixed to reserved holes of the shield segment through chemical anchor bolts penetrating through the long round holes, the two U-steel cross beams are arranged between the two Z-shaped steel stand columns and connected with the two Z-shaped steel stand columns through fastening bolts, and the angle steel vertical beam is arranged between the two U-steel cross beams and connected with the two U-steel cross beams through fastening bolts. The device box support has the advantages that the stress form is simple, clear and reliable, the device box support is used in cooperation with a duct piece reserved positioning hole and adapts to shield tunnel construction errors, a device box of a conventional size can be installed at any position within a certain duct piece range, and the device box support is provided with teeth and tooth-shaped gaskets so that slippage can be effectively resisted.

Description

Technical Field

[0001] This utility model relates to the field of shield tunnel technology, specifically to an equipment box bracket suitable for pre-embedded positioning holes of shield tunnel segments. Background Technology

[0002] In existing projects such as urban rail transit, municipal pipelines, and integrated utility tunnels, equipment brackets on tunnel lining segments are directly fixed to the concrete segment structure by drilling holes on-site and using anchor bolts or other methods. This installation method involves numerous procedures, is complex, and has a long construction period. The numerous holes drilled into the segments can easily cause damage. Furthermore, because the anchor bolts are drilled on-site, it is impossible to ensure that the holes are consistently positioned horizontally or longitudinally along the segments, leading to inaccurate positioning of the equipment brackets and making equipment installation difficult. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing an equipment box bracket suitable for pre-embedded positioning holes in tunnel lining segments. The main load-bearing components adopt an external mounting process. By optimizing and modifying the equipment box bracket design, it is made capable of horizontal, vertical, and arbitrary spacing adjustments to accommodate construction errors in rail transit shield tunnels, reduce damage to tunnel lining segments, and improve the efficiency of equipment box bracket installation.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A support box for pre-embedded positioning holes in tunnel lining segments is characterized by comprising two Z-shaped steel columns, the Z-shaped steel columns being appropriately matched to the structural shape of the tunnel lining segments, each of the two Z-shaped steel columns having an elongated hole, the Z-shaped steel columns being fixed to the pre-reserved holes in the tunnel lining segments by chemical anchors passing through the elongated holes, two channel steel beams being provided between the two Z-shaped steel columns, the two ends of each channel steel beam being connected to the two Z-shaped steel columns on both sides by fastening bolts, and an angle steel beam being provided between the two channel steel beams, the two ends of the angle steel beam being connected to the two channel steel beams on both sides by fastening bolts.

[0006] The Z-shaped steel column has vertical bolt holes, and the end of the channel steel beam has horizontal elongated bolt holes. The horizontal bolt holes are matched with the vertical bolt holes and connected by the fastening bolts.

[0007] The channel steel beam has transverse bolt holes, and the angle steel beam has transverse bolt holes. The two transverse bolt holes are matched in position and connected by the fastening bolts.

[0008] The elongated hole has toothed grooves on both sides, and the chemical anchor is equipped with a toothed gasket that matches the toothed grooves.

[0009] The edge of the elongated hole is provided with stiffening ribs.

[0010] The advantages of this utility model are: 1) The force-bearing form of the equipment box support is simple, clear, and reliable; 2) The equipment box support can be used in conjunction with the pre-reserved positioning holes in the tunnel segments to adapt to the construction errors of shield tunnels; 3) The equipment box support can install conventional-sized equipment boxes at any position within a certain tunnel segment range; 4) The equipment box support is equipped with teeth and toothed gaskets to effectively resist slippage; 5) It is particularly suitable for situations where positioning holes are pre-reserved in tunnel segments for urban railways, rail transit, municipal pipelines, and integrated pipe corridors, which can adapt to shield construction errors and reduce damage to the tunnel segments. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 for Figure 1 Side view. Detailed Implementation

[0013] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:

[0014] like Figure 1-2 As shown in the figure, the labels represent: Z-shaped steel column 1, channel steel beam 2, angle steel beam 3, shield segment 4, chemical anchor bolt 5, shield segment reserved hole 5a, Z-shaped steel column elongated hole 6, Z-shaped steel column toothed groove 7, fastening bolt 8, transverse elongated bolt 8a, fastening bolt 9, transverse bolt hole 9a, vertical bolt hole 9b, stiffening rib 10, toothed washer 11.

[0015] Example: Figures 1 to 2 As shown, the section equipment box bracket applicable to the pre-embedded positioning holes of shield tunnel segments in this embodiment can be used in conjunction with the reserved positioning holes set on the shield tunnel segments. It can be used to address the construction errors of shield tunnels, further avoid drilling holes in the segments, reduce damage to the segments, improve construction efficiency, and at the same time, it can also meet the requirement of installing conventional size equipment boxes at any position within a certain segment range.

[0016] Specifically, the equipment box support in this embodiment includes a Z-shaped steel column 1, a channel steel beam 2, an angle steel beam 3, fastening bolts, chemical anchors 5, and toothed gaskets 11 for fixing the above components to the pipe segments. The steel structure of each component is made of corrosion-resistant materials. After the components are fastened together by bolts, they are fixed as a whole to the entire Z-shaped steel column 1.

[0017] like Figure 2As shown, several elongated holes 6 are provided in the middle of the Z-shaped steel column 1. Each elongated hole 6 can accommodate the construction deviation of the reserved holes 5a on the shield segment 4. The chemical anchor 5 is anchored in the reserved holes 5a of the shield segment 4 through the elongated holes 6 of the Z-shaped steel column 1, fixing the Z-shaped steel column 1 to the shield segment (4). The Z-shaped steel column 1 is a straight or arc shape that matches the inner wall structure shape of the shield segment 4.

[0018] In this embodiment, the edge of the elongated hole 6 has several stiffening ribs 10 within a certain range to ensure the structural strength of the Z-shaped steel column 1 at that location. Each side of the elongated hole 6 has a row of toothed grooves 7 distributed at a certain interval. The toothed washer 11 used with the chemical anchor 5 is tightly engaged with the toothed grooves 7, thereby strengthening the fixation between the chemical anchor 5 and the Z-shaped steel column 1.

[0019] like Figure 1 As shown, several vertical bolt holes 9b are made at certain intervals on the side of the Z-shaped steel column 1 that is not attached to the segment 4. Two channel steel beams 2 are arranged at intervals along the height direction between the two Z-shaped steel columns 1 on both sides, and are arranged parallel to each other. The channel opening of the channel steel beam 2 faces the segment, and there is a transverse elongated bolt hole 8a at each end of the web of the channel steel beam 2. Several transverse bolt holes 9a are also made at certain intervals on the web, except at the ends.

[0020] The transverse elongated bolt holes 8a of the channel steel beam 2 match the vertical bolt holes 9b arranged vertically on the Z-shaped steel column 1. The holes are fixedly connected by fastening bolts 8, thereby realizing the fixed connection between the channel steel beam 2 and the Z-shaped steel column 1.

[0021] Several angle steel beams 3 are installed between two parallel channel steel beams 2, each angle steel beam 3 being perpendicular to the channel steel beams 2 and parallel to each other. The number and position of the angle steel beams 3 can be selected according to the equipment box to be installed.

[0022] Each end of one side of the angle steel beam 3 has a horizontal bolt hole 9a, and several vertical bolt holes 9b arranged at certain intervals are provided on the other side. The angle steel beam 3 is connected to the horizontal bolt holes 9a arranged horizontally on the channel steel beam 2 by matching the positions of the horizontal bolt holes 9a at both ends and using fastening bolts 9.

[0023] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A support box for pre-embedded positioning holes in tunnel lining segments, characterized in that: The system includes two Z-shaped steel columns, which are compatible with the structural shape of the tunnel segment. Each Z-shaped steel column has an elongated hole, and the columns are fixed to the pre-drilled holes in the tunnel segment using chemical anchors that pass through the holes. Two channel steel beams are positioned between the two Z-shaped steel columns, with each beam connected to one of the Z-shaped steel columns on either side by fastening bolts. An angle steel beam is positioned between the two channel steel beams, with both ends connected to the channel steel beams on either side by fastening bolts.

2. The equipment box support for pre-embedded positioning holes of tunnel segments according to claim 1, characterized in that: The Z-shaped steel column has vertical bolt holes, and the end of the channel steel beam has horizontal elongated bolt holes. The horizontal elongated bolt holes are matched with the vertical bolt holes and connected by the fastening bolts.

3. The equipment box support for pre-embedded positioning holes of tunnel segments according to claim 1, characterized in that: The channel steel beam has transverse bolt holes, and the angle steel beam has transverse bolt holes. The two transverse bolt holes are matched in position and connected by the fastening bolts.

4. The equipment box support for pre-embedded positioning holes of tunnel segments according to claim 1, characterized in that: The elongated hole has toothed grooves on both sides, and the chemical anchor is equipped with a toothed gasket that matches the toothed grooves.

5. A device box support for pre-embedded positioning holes of tunnel segments according to claim 1, characterized in that: The edge of the elongated hole is provided with stiffening ribs.

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