Temporary cable support for shield tunnel

Abstract

The utility model discloses a temporary cable support for a shield tunnel, which comprises a support main body, an opening hanger and a plurality of cable supports, the support main body has a radian matched with a tunnel segment, and the support main body extends along the circumferential direction of the tunnel segment; the bracket main body is hung on the duct piece bolt through the opening hanging lug; the plurality of cable supports are installed on the side, away from the opening hanging lug, of the support body, the plurality of cable supports are sequentially arranged at intervals in the extending direction of the support body, and any two adjacent cable supports are different in size. According to the utility model, the cable supports of multiple sizes are integrated through the support main body, temporary cables in a tunnel are uniformly arranged and suspended in a layered manner, the construction safety of the shield tunnel and the construction efficiency of the temporary cables are improved, and the support main body and the cable supports are directly hung on the duct piece bolts through the opening suspension loops, so that the construction efficiency is improved. The cable construction process in the shield tunnel is more convenient, and the construction cost of temporary cable suspension in the shield tunnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shield construction, in particular to a temporary cable support for a shield tunnel. Background Art

[0002] At present, shield construction technology has gradually matured, and the requirements for tunnel construction quality, safety management and standardization have been gradually improved. Temporary cables in conventional shield tunnel construction include 10KV high-voltage cables, tunnel lighting main cables, tunnel lighting auxiliary cables, communication cables, lighting equipment, etc. There are no unified requirements for cable layout, and the layout is random. The layout height of high-voltage and low-voltage cables is not unified, and the layout is relatively scattered. The layout of multiple cables requires the complete removal of multiple layers of bolts, the construction is relatively complicated, and the layout position is somewhat unreasonable, resulting in increased safety hazards in tunnel construction.

[0003] In the related art, traditional brackets are often used to uniformly arrange and manage various cables.

[0004] However, the installation and removal procedures of traditional brackets are relatively complicated and inconvenient to use, resulting in low construction efficiency of cables in shield tunnels. In addition, traditional brackets are repeatedly used with a low turnover rate, resulting in material waste and increasing the construction cost of cables in shield tunnels. Utility Model Content

[0005] The main purpose of the utility model is to provide a temporary cable support for a shield tunnel, aiming to solve the technical problem that the traditional support in the prior art is inconvenient to use.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a temporary cable support for a shield tunnel, wherein the shield tunnel comprises a tunnel segment, and the tunnel segment is connected with a segment bolt. The temporary cable support for the shield tunnel comprises:

[0008] A support body, wherein the support body has a curvature adapted to the tunnel segment, and the support body extends along the circumference of the tunnel segment;

[0009] An open hanging ear, one end of which is connected to the bracket body, and the other end of which is hung on the segment bolt;

[0010] Multiple cable brackets are installed on the side of the bracket body away from the open hanging ear, and the multiple cable brackets are arranged in sequence along the extension direction of the bracket body. Among any two adjacent cable brackets, the size of the cable bracket close to the top of the bracket body is smaller than the size of the other cable bracket.

[0011] Optionally, in the above-mentioned temporary cable support for a shield tunnel, the opening hanging ear is arranged at an angle to the support body.

[0012] Optionally, in the above-mentioned temporary cable bracket for shield tunnel, the open hanging ear includes a connecting part and a hanging part, one end of the connecting part is connected to the bracket body, one end of the hanging part is connected to an end of the connecting part away from the bracket body, and the end of the hanging part away from the connecting part is bent downward.

[0013] Optionally, in the above-mentioned temporary cable support for a shield tunnel, the size of the connecting portion is gradually reduced from the support body toward a direction away from the support body.

[0014] Optionally, in the above-mentioned temporary cable support for a shield tunnel, the connecting portion is in the shape of a right triangle, and the right-angled side of the connecting portion is connected to the support body.

[0015] Optionally, in the above-mentioned temporary cable support for a shield tunnel, one end of the cable support is connected to the support body, and the other end of the cable support extends in a direction away from the support body and is bent upward.

[0016] Optionally, in the above-mentioned temporary cable support for a shield tunnel, an outer sheath of the cable support is provided with an insulating rubber sheath.

[0017] Optionally, in the above-mentioned temporary cable bracket for a shield tunnel, the bracket body is installed on the tunnel segment above the center line of the shield tunnel.

[0018] Optionally, in the above-mentioned temporary cable support for a shield tunnel, the opening hanging ear is arranged close to the geometric center of the support body.

[0019] Optionally, in the above-mentioned temporary cable support for a shield tunnel, surfaces of the support body, the opening hanging ears and the cable support are all covered with a yellow coating.

[0020] The above one or more technical solutions provided by the present utility model may have the following advantages or at least achieve the following technical effects:

[0021] The utility model proposes a temporary cable support for a shield tunnel. A plurality of cable supports of different sizes are integrated through a support body, which is suitable for temporary cables of various types in the tunnel. The temporary cables in the tunnel are uniformly arranged and suspended in layers, thereby improving the construction safety of the shield tunnel and the construction efficiency of the temporary cables. While making the temporary cables in the tunnel arranged neatly and beautifully, the working safety of the construction personnel is improved. The support body and a plurality of cable supports are directly hung on the segment bolts in the tunnel segment by using open hanging ears, thereby reducing the construction process of the temporary cable support, making the cable construction process in the shield tunnel more convenient, easy to disassemble and install to increase the turnover number of repeated use of the cable support. Moreover, the manufacturing material of the temporary cable support for the shield tunnel is easy to obtain directly at the construction site, thereby reducing the construction cost of the temporary cable suspension in the shield tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the installation structure of a temporary cable support for a shield tunnel in one embodiment of the utility model;

[0024] Figure 2 It is a schematic side view of the structure of a temporary cable support for a shield tunnel in one embodiment of the utility model;

[0025] Figure 3 It is a schematic diagram of the installation structure of the tube segment bolts and the open hanging ears in one embodiment of the utility model;

[0026] Figure 4 This is a front view structural schematic diagram of a temporary cable support for a shield tunnel in one embodiment of the utility model;

[0027] Figure 5 The present invention is a schematic top view of the structure of a temporary cable support for a shield tunnel in one embodiment of the present invention.

[0028] Description of Figure Numbers:

[0029] Label name Label name 100 Tunnel Segments 200 Segment bolts 300 Bracket body 400 Opening ear 500 Cable holder 410 Connection 420 Hooking part

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that in the embodiments of the present utility model, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In the present utility model, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "includes..." does not exclude the presence of other identical elements in the process, method, article or system including the element. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B.

[0034] In the present utility model, unless otherwise clearly stipulated and limited, the terms "connection", "fixed" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between the two elements.

[0035] In the present invention, if there is a description involving "first", "second", etc., the description of "first", "second", etc. is only used for descriptive purposes and cannot be understood as indicating or implying its relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0036] In the present invention, suffixes such as "module", "assembly", "part", "component" or "unit" used to represent elements are used only to facilitate the description of the present invention and have no specific meaning. Therefore, "module", "component" or "unit" can be used interchangeably.

[0037] For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances. In addition, the technical solutions of various embodiments can be combined with each other, but this is based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0038] The technical concept of the present utility model is further described below in conjunction with some specific implementation methods.

[0039] The utility model provides a temporary cable support for a shield tunnel.

[0040] Reference Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the installation structure of a temporary cable support for a shield tunnel in one embodiment of the utility model; Figure 2 It is a schematic side view of the structure of a temporary cable support for a shield tunnel in one embodiment of the utility model; Figure 3 The figure is a schematic diagram of the installation structure of the segment bolts and the open hanging ears in one embodiment of the utility model.

[0041] In one embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, a temporary cable support 500 for a shield tunnel, the shield tunnel includes a tunnel segment 100, and the tunnel segment 100 is connected with a segment bolt 200; the temporary cable support 500 for the shield tunnel includes a support body 300, an open hanging ear 400 and a plurality of cable supports 500, the support body 300 has an arc adapted to the tunnel segment 100, and the support body 300 extends along the circumference of the tunnel segment 100; one end of the open hanging ear 400 is connected to the support body 300, and the other end of the open hanging ear 400 is hung on the segment bolt 200; the plurality of cable supports 500 are all installed on the side of the support body 300 away from the open hanging ear 400, and the plurality of cable supports 500 are arranged in sequence along the extension direction of the support body 300, and in any two adjacent cable supports 500, the size of the cable support 500 close to the top of the support body 300 is smaller than the size of the other cable support 500.

[0042] It should be noted that the number of cable brackets 500 can be but is not limited to 4. The four cable brackets 500 have different sizes and are arc-shaped. Each bracket is responsible for adapting a cable as listed in the background technology, reducing the loss caused by bending of temporary cables when they are arranged in a messy manner. In the extension direction of the bracket body 300, an insulating rubber sleeve is provided on the cable bracket 500 located at the bottom, and an open hanging ear 400 connected to the pipe segment bolt 200 is provided on the side of the bracket body 300 away from the cable bracket 500.

[0043] In addition, the structure of the bracket body 300 is formed by processing flat iron, and the cable bracket 500 is formed by bending a flat iron of the same model as the bracket body 300 into an arc shape, wherein, in the extension direction of the bracket body 300, the cable bracket 500 located at the uppermost end is bent from round steel. The bracket body 300 and the cable bracket 500 formed by processing flat iron are light in material and low in cost, easy to use, occupy a small space for on-site storage, have a high turnover rate, and are 50% lighter than traditional materials, which is beneficial to improving the construction efficiency of cables in shield tunnels while reducing the construction cost of cables in shield tunnels.

[0044] In addition, the cable bracket 500 can be specifically used with high-voltage cables, low-voltage lighting main cables, low-voltage lighting auxiliary cables, communication cables, and tunnel lighting strips, etc.

[0045] It should be understood that, as an optional implementation of this embodiment, the structure of the bracket body 300 is made of 40*4mm flat iron, with a length of 675mm and a diameter of 5500mm; the cable bracket 500 for communication cables among the multiple cable brackets 500 is made of φ6.5 round steel with an arc diameter of 24mm; the cable bracket 500 for the main and auxiliary cables of the tunnel lighting among the multiple cable brackets 500 is made of flat iron of the same specification as the bracket body 300, welded to the structure of the bracket body 300, with an arc diameter of 40mm; The cable holder 500 for high-voltage cables in the rack 500 adopts flat iron of the same specification as the holder body 300, is formed by bending the structure of the holder body 300, has an arc diameter of 70mm, and is used to suspend 10KV high-voltage cables; an insulating rubber sleeve is installed on each cable holder 500 to protect the cable from being damaged during the connection process; the installation process of each cable holder 500 adopts a ring-by-ring installation method, and after the installation is completed, the cable is straightened and fixed with a cable tie, which can effectively fix the cable, reduce the loss caused by bending during the material installation process, and increase the utilization rate of the cable material.

[0046] As another optional implementation of the present embodiment, a 40*4mm flat iron is used to form a bracket body 300 and a cable bracket 500. When using the temporary cable bracket 500 for a shield tunnel, the open hanging ear 400 is hung on the segment bolt 200 in cooperation with the segment bolt 200 to provide a hanging space for the temporary cable, which fully considers the arrangement of temporary cables in the tunnel. The temporary cable bracket 500 for a shield tunnel is easy to install and dismantle, easy to store on site, highly safe, and has a beautiful formed tunnel, thereby reducing the safety risk of accidentally touching high-voltage lines during daily tunnel construction.

[0047] In addition, the support body 300 formed by processing flat iron has good structural bending performance and can adapt to the arc-shaped structure of the tunnel segment 100, that is, adapt to the curvature of the tunnel segment 100.

[0048] The technical solution of the utility model integrates multiple cable holders 500 of different sizes through the bracket main body 300, which is suitable for various types of temporary cables in the tunnel, and the temporary cables in the tunnel are uniformly arranged and suspended in layers, thereby improving the construction safety of the shield tunnel and the construction efficiency of the temporary cables. While making the temporary cables in the tunnel arranged neatly and beautifully, the working safety of the construction personnel is improved, and the bracket main body 300 and multiple cable holders 500 are directly hung on the segment bolts 200 in the tunnel segment 100 by using the open hanging ears 400, thereby reducing the construction process of the temporary cable holder 500, making the cable construction process in the shield tunnel more convenient, easy to disassemble and install to increase the turnover number of repeated use of the cable holder 500, and the manufacturing materials of the temporary cable holder 500 used in the shield tunnel are easy to obtain directly at the construction site, thereby reducing the construction cost of the temporary cable suspension of the shield tunnel.

[0049] Continue to refer to Figures 1 to 3 , and refer to Figure 4 and Figure 5 , Figure 4 This is a front view structural schematic diagram of a temporary cable support for a shield tunnel in one embodiment of the utility model; Figure 5 The figure is a schematic top view of the structure of a temporary cable support for a shield tunnel in one embodiment of the utility model.

[0050] In one embodiment, if Figures 1 to 5 As shown, the open hanging ear 400 is arranged at an angle with the bracket body 300 .

[0051] It should be noted that in Figure 5 From the perspective of FIG. 4 , the angle between the opening ear 400 and the bracket body 300 is 128°.

[0052] It should be understood that in order to leave operating space for construction workers, the opening hanging ear 400 and the bracket body 300 are arranged at an angle.

[0053] Continue to refer to Figures 1 to 4 .

[0054] In one embodiment, if Figures 1 to 4 As shown, the open hanging ear 400 includes a connecting portion 410 and a hanging portion 420, one end of the connecting portion 410 is connected to the bracket body 300, one end of the hanging portion 420 is connected to the end of the connecting portion 410 away from the bracket body 300, and the end of the hanging portion 420 away from the connecting portion 410 is bent downward.

[0055] It should be noted that one end of the hanging portion 420 away from the connecting portion 410 is bent downward to form a hook shape with an opening facing downward.

[0056] It should be understood that when the open hanging ear 400 is hung on the segment bolt 200, there is no need to loosen the segment bolt 200. The segment bolt 200 only needs to be loosened during the removal of the open hanging ear 400. During the removal of the open hanging ear 400, there is no need to remove the entire bolt. The removal work can be completed by loosening it, which reduces the construction process of the temporary cable bracket 500, makes the cable construction process in the shield tunnel more convenient, and is easy to disassemble and install to increase the turnover number of repeated uses of the cable bracket 500.

[0057] In one embodiment, the size of the connection portion 410 is gradually reduced from the bracket body 300 toward a direction away from the bracket body 300 .

[0058] It should be understood that since the segment bolt 200 is inserted into the bolt hole of the tunnel segment 100, i.e., the segment hand hole, in order to facilitate the connection ear to be able to smoothly and efficiently extend into the bolt hole of the tunnel segment 100 to be hung on the segment bolt 200, the part of the connecting part 410 extending into the bolt hole of the tunnel segment 100 is its smallest end.

[0059] In one embodiment, in order to improve the stability of the open hanging ear 400 when it is hung on the segment bolt 200 , the connecting portion 410 is in the shape of a right triangle, and the right angle side of the connecting portion 410 is connected to the bracket body 300 .

[0060] In one embodiment, one end of the cable bracket 500 is connected to the bracket body 300 , and the other end of the cable bracket 500 extends away from the bracket body 300 and is bent upward.

[0061] It should be understood that the end of the cable holder 500 away from the holder body 300 is bent upward to form an arc-shaped hook for hanging temporary cables. The arc-shaped cable holder 500 can reduce the wear of the temporary cable and is more conducive to ensuring the normal use of the temporary cable.

[0062] In one embodiment, the outer shell of the cable support 500 is provided with an insulating rubber sleeve.

[0063] It should be understood that the insulating rubber sleeve provided on the periphery of the cable support 500 increases the construction safety of the temporary cable and protects the temporary cable from being worn.

[0064] In one embodiment, the support body 300 is installed on the tunnel segment 100 at the upper part of the center line of the shield tunnel.

[0065] It should be understood that the installation position of the bracket body 300 is the position of the segment bolt 200 above the center line of the tunnel segment 100. This position is above the shield machine trolley during installation. The installation height is suitable and easy to operate. After the installation is completed, the height is higher than that of the conventional solution, which avoids the influence of most construction operations in the tunnel and the damage to the high-voltage cable due to the derailment of the electric vehicle. At the same time, the environment is relatively dry after the suspension height of the high-voltage cable is increased, which can increase the safety of equipment power use.

[0066] In one embodiment, the open hanging ear 400 is disposed close to the geometric center of the bracket body 300 .

[0067] It should be understood that in order to improve the connection stability between the open hanging ear 400 and the bracket body 300, the open hanging ear 400 is connected to the center of the bracket body 300 in its own vertical direction and thickness direction.

[0068] In one embodiment, the surfaces of the bracket body 300 , the open hanging ear 400 and the cable bracket 500 are all covered with a yellow coating.

[0069] It should be understood that the surfaces of the bracket body 300, the open hanging ear 400 and the cable bracket 500 are all covered with electroplated yellow paint, which is both aesthetically pleasing and can serve as a warning to construction workers to prevent them from accidentally touching temporary cables.

[0070] Finally, it should be noted that the serial numbers of the above embodiments of the utility model are only for description and do not represent the advantages and disadvantages of the embodiments. The above embodiments are only optional embodiments of the utility model, and do not limit the patent scope of the utility model. All equivalent structures or equivalent process changes made by using the contents of the utility model specification and drawings under the technical concept of the utility model, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the utility model.

Claims

1. A temporary cable support for a shield tunnel, wherein the shield tunnel comprises tunnel segments, wherein the tunnel segments are connected with segment bolts, characterized in that: The temporary cable support for the shield tunnel comprises: A support body, wherein the support body has a curvature adapted to the tunnel segment, and the support body extends along the circumference of the tunnel segment; An open hanging ear, one end of which is connected to the bracket body, and the other end of which is hung on the segment bolt; Multiple cable brackets are installed on the side of the bracket body away from the open hanging ear, and the multiple cable brackets are arranged in sequence along the extension direction of the bracket body. Among any two adjacent cable brackets, the size of the cable bracket close to the top of the bracket body is smaller than the size of the other cable bracket.

2. The temporary cable support for a shield tunnel as claimed in claim 1, characterized in that: The open hanging ear is arranged at an angle to the bracket body.

3. The temporary cable support for a shield tunnel as claimed in claim 2, characterized in that: The open hanging ear includes a connecting portion and a hanging portion, one end of the connecting portion is connected to the bracket body, one end of the hanging portion is connected to an end of the connecting portion away from the bracket body, and the end of the hanging portion away from the connecting portion is bent downward.

4. The temporary cable support for a shield tunnel as claimed in claim 3, characterized in that: The size of the connection portion is gradually reduced from the bracket body toward a direction away from the bracket body.

5. The temporary cable support for a shield tunnel as claimed in claim 3, characterized in that: The connecting portion is in the form of a right triangle, and the right-angled side of the connecting portion is connected to the bracket body.

6. The temporary cable support for a shield tunnel according to any one of claims 1 to 5, characterized in that: One end of the cable bracket is connected to the bracket body, and the other end of the cable bracket extends in a direction away from the bracket body and is bent upward.

7. The temporary cable support for a shield tunnel according to any one of claims 1 to 5, characterized in that: The outer sheath of the cable support is provided with an insulating rubber sheath.

8. The temporary cable support for a shield tunnel according to any one of claims 1 to 5, characterized in that: The support body is installed on the tunnel segment above the center line of the shield tunnel.

9. The temporary cable support for a shield tunnel according to any one of claims 1 to 5, characterized in that: The open hanging ear is arranged close to the geometric center of the bracket body.

10. The temporary cable support for a shield tunnel according to any one of claims 1 to 5, characterized in that: The surfaces of the bracket body, the open hanging ear and the cable bracket are all covered with a yellow coating.

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