Forward and reverse adjustable cable support applicable to shield construction deviation

Abstract

The invention provides a forward and reverse adjustable cable support applicable to shield construction deviation, which comprises a connecting piece connected with a connecting surface of a shield tunnel, the connecting piece comprises a first connecting part and a second connecting part, the first connecting part is provided with a plurality of connecting holes, each connecting hole comprises a first branch part, a second branch part and a third branch part which are communicated in sequence, and the second branch part is provided with a plurality of second branch parts; the first branch part and the third branch part are circular holes; the first bearing part is arranged on the second connecting part, the first bearing part is used for bearing a cable, and the multiple connecting holes meet the following relation: alpha = 2 (n + 1) beta; in the formula, alpha represents the central angle of the connecting piece; beta represents the central angle of the first subsection and the third subsection; n represents the number of the connecting holes, and the problem that in the prior art, when the duct piece deflects, the cable support cannot be installed in situ, and secondary machining is carried out is solved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnels, and in particular to a forward and reverse adjustable cable bracket which can adapt to shield construction deviations. Background Art

[0002] In modern urban infrastructure construction, shield tunnels are widely used in the construction of underground pipelines such as subways, electricity, and water supply due to their high construction efficiency and low environmental impact. However, the problem of segment deflection during shield construction has always been a difficult problem that has troubled the engineering community. During the shield advancement process, the segments often have a certain degree of positional offset and rotational deviation due to factors such as geological conditions and construction parameters, which directly affects the subsequent installation of auxiliary facilities, such as the precise positioning of cable brackets.

[0003] Traditional cable bracket designs are usually based on the theoretical geometric dimensions of shield tunnels, and their installation position and angle depend on the fixed sleeves embedded in the tunnel pipe stators. Once the shield construction causes the embedded sleeves to shift, the installation of traditional cable brackets will become difficult or even impossible to achieve in-situ installation, which not only increases construction costs but may also delay the progress of the entire project.

[0004] In the prior art, the adjustment of the cable bracket usually relies on on-site secondary processing, such as cutting, welding, etc. to adapt to the position deviation of the embedded parts. This method is not only time-consuming and labor-intensive, but also may affect the structural strength and service life of the cable bracket in some cases. Summary of the invention

[0005] The main purpose of the present invention is to provide a cable bracket that can be adjusted in both directions to adapt to the deviation of shield construction, so as to solve the problem in the prior art that when the pipe segment deflects, the cable bracket cannot be installed in situ and needs secondary processing.

[0006] In order to achieve the above object, according to one aspect of the present invention, a forward and reverse adjustable cable support capable of adapting to shield construction deviation is provided, comprising:

[0007] A connecting piece, the connecting piece is used to connect with the connecting surface of the shield tunnel, the connecting piece includes a first connecting part and a second connecting part, the first connecting part is provided with a plurality of connecting holes, the connecting holes include a first sub-part, a second sub-part and a third sub-part which are connected in sequence, and the first sub-part and the third sub-part are both circular holes;

[0008] A first bearing member, the first bearing member is arranged on the second connecting portion, and the first bearing member is used to bear the cable;

[0009] Among them, the multiple connection holes satisfy the following relationship:

[0010] α=2(n+1)β ；

[0011] In the formula: α represents the central angle of the connecting piece;

[0012] β represents the central angles of the first part and the third part;

[0013] n represents the number of connecting holes.

[0014] Furthermore, the value range of the central angle of the connecting piece is 5 degrees < α ≤ 180 degrees.

[0015] Furthermore, the value range of the central angles of the first part and the third part is both 0 degrees < β ≤ 2 degrees.

[0016] Furthermore, the surface of the first connecting part away from the second connecting part is the first plane, and the surface of the second connecting part away from the first connecting part is the second plane, and the first plane is perpendicular to the second plane.

[0017] Furthermore, the connecting hole is a strip-shaped hole.

[0018] Furthermore, a plurality of first mounting holes are provided on the second connecting part, and the first carrier can be selectively arranged on the second connecting part through at least two of the plurality of first mounting holes.

[0019] Furthermore, it further includes a plurality of locking pieces, and the plurality of locking pieces correspond to the plurality of first mounting holes one by one, and at least a part of each locking piece can be inserted into the corresponding first mounting hole to mount the first carrier on the second connecting part through each locking piece.

[0020] Furthermore, the first carrier includes: a mounting part, the mounting part is connected to the second connecting part, and a plurality of second mounting holes corresponding to the plurality of first mounting holes one by one are provided on the mounting part, and the first mounting hole and the second mounting hole are detachably connected through a locking piece;

[0021] a bearing part, the bearing part is connected to the mounting part, and the bearing part extends along the first direction.

[0022] Furthermore, the mounting part includes: a first mounting sub-part, the width of the first mounting sub-part in the second direction gradually increases along the direction close to the second connecting part, and the small-diameter end of the first mounting sub-part is connected to the bearing part;

[0023] a second mounting sub-part, one end of the second mounting sub-part is connected to the large-diameter end of the first mounting sub-part, the second mounting sub-part is a rectangular plate, and the width of the rectangular plate is equal to the width of the large-diameter end of the first mounting sub-part;

[0024] Wherein, the second direction is perpendicular to the first direction.

[0025] Furthermore, the connecting piece further includes:

[0026] The spare hole is arranged between two adjacent first mounting holes on the second connecting part, and the first carrier can be selectively arranged on the second connecting part through the spare hole.

[0027] Applying the technical solution of the present invention, during the shield construction process, the first connecting part of the connecting piece is fixed to the connecting surface of the shield tunnel through the connecting hole. Even in the case of deviation caused by the rotation of the shield segment, since the first part and the third part of the connecting hole have a small central angle β, which can cover the offset range of the embedded sleeve, the connecting piece can still be effectively fixed. In addition, since the number and distribution of the connecting holes follow the geometric relationship of α = 2(n + 1)β, the connecting piece can adapt to tunnel connecting surfaces at different angles, ensuring that even when there is a deviation in shield construction, the cable bracket can be accurately positioned and firmly installed. After the connecting piece is fixed, the first carrier is connected to it through the preset mounting holes on the second connecting part. The installation position and direction of the first carrier are determined by its connection method with the second connecting part, ensuring that the cable can be laid according to the design requirements without being affected by the installation angle of the bracket. Through the special design of the connecting hole and the geometric relationship of α = 2(n + 1)β, the cable bracket can adapt to the deflection of the embedded parts during shield construction, ensuring stable installation in any case. Since the structural design of the connecting piece and the first carrier takes into account the adaptability to construction deviation and the flexibility of installation, this will significantly reduce the repositioning and adjustment time caused by the position deviation of the embedded parts, improving the construction efficiency. By considering the influence of construction deviation in the design stage, the modification or replacement of the bracket in the later stage of construction is avoided, thus controlling the cost and reducing the overall project cost. Brief Description of the Drawings

[0028] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0029] Figure 1 The structural schematic diagram of the cable bracket according to the embodiment of this application is shown;

[0030] Figure 2 The Figure 1 magnified schematic diagram at A in

[0031] Figure 3 The side view of the cable bracket according to the embodiment of this application is shown.

[0032] Among them, the above-mentioned drawings include the following reference numerals:

[0033] 1. Connecting member; 101. First connecting part; 102. Second connecting part; 2. Connecting hole; 201. First subdivision; 202. Second subdivision; 203. Third subdivision; 3. First bearing member; 301. Bearing part; 302. Mounting part; 3021. First mounting subdivision; 3022. Second mounting subdivision; 4. First mounting hole; 5. Spare hole. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] In modern urban infrastructure construction, shield tunnels are widely used in the construction of underground pipelines such as subways, electricity, and water supply due to their high construction efficiency and low environmental impact. However, the problem of segment deflection during shield construction has always been a difficult problem that has troubled the engineering community. During the shield advancement process, the segments often have a certain degree of positional offset and rotational deviation due to factors such as geological conditions and construction parameters, which directly affects the subsequent installation of auxiliary facilities, such as the precise positioning of cable brackets.

[0036] Traditional cable bracket designs are usually based on the theoretical geometric dimensions of shield tunnels, and their installation position and angle depend on the fixed sleeves embedded in the tunnel pipe stators. Once the shield construction causes the embedded sleeves to shift, the installation of traditional cable brackets will become difficult or even impossible to achieve in-situ installation, which not only increases construction costs but may also delay the progress of the entire project.

[0037] In the prior art, the adjustment of the cable bracket usually relies on on-site secondary processing, such as cutting, welding, etc. to adapt to the position deviation of the embedded parts. This method is not only time-consuming and labor-intensive, but also may affect the structural strength and service life of the cable bracket in some cases.

[0038] The main purpose of the present invention is to provide a cable bracket that can be adjusted in both directions to adapt to the deviation of shield construction, so as to solve the problem in the prior art that when the pipe segment deflects, the cable bracket cannot be installed in situ and needs secondary processing.

[0039] A cable support that can be adjusted in both directions to accommodate shield construction deviations includes a connector 1, the connector 1 is used to connect to a connecting surface of a shield tunnel, the connector 1 includes a first connector 101 and a second connector 102, the first connector 101 is provided with a plurality of connecting holes 2, the connecting holes 2 include a first sub-section 201, a second sub-section 202 and a third sub-section 203 that are sequentially connected, and the first sub-section 201 and the third sub-section 203 are both circular holes;

[0040] The first carrier 3 is provided on the second connecting portion 102 and is used to carry the cable.

[0041] Among them, the multiple connecting holes 2 satisfy the following relationship:

[0042] α = 2(n + 1)β ；

[0043] In the formula: α represents the central angle of the connecting piece;

[0044] β represents the central angles of the first part and the third part;

[0045] n represents the number of connecting holes;

[0046] Among them, the value range of the central angle of the connecting piece 1 is 5 degrees < α ≤ 180 degrees;

[0047] The value ranges of the central angles of the first part 201 and the third part 203 are both 0 degrees < β ≤ 2 degrees.

[0048] Specifically, as Figures 1 to 3 shown, this application proposes a cable support that can be adjusted forward and backward to adapt to the deviation of shield construction. The cable support includes a connecting piece 1, which is designed to have a structure with a first connecting portion 101 and a second connecting portion 102. Multiple connecting holes 2 are provided on the first connecting portion 101, and each connecting hole 2 is sequentially connected and composed of a first part 201, a second part 202, and a third part 203. The first part 201 and the third part 203 are designed as circular holes to adapt to different positions of the embedded sleeves in the shield tunnel, ensuring the stability and adaptability of the connection. The geometric design of the connecting hole 2 satisfies the formula α = 2(n + 1)β, where α represents the central angle of the connecting piece 1, β represents the central angles of the first part 201 and the third part 203, and n represents the number of connecting holes. By controlling the central angle α of the connecting piece 1 between 5 degrees and 180 degrees, and the central angle β of the first part 201 and the third part 203 between 0 degrees and 2 degrees, this support can adapt to the uncertainty of the position of the embedded parts during shield construction. Even when the embedded parts are offset, the correct installation of the support can be achieved by adjusting the position of the bolts. The second connecting portion 102 is provided with a first carrier 3 for carrying the cable. The design of the first carrier 3 takes into account the laying requirements of the cable in the tunnel to ensure the stability and safety of the cable.

[0049] During use, when the position of the embedded kit is offset, the connecting piece 1 in the current state can be reversed by 180°. Since the connecting holes 2 opened on the connecting piece 1 satisfy the above relationship formula, when the connecting piece 1 is reversed, it can be ensured that the connecting piece 1 can be accurately installed with the embedded part.

[0050] Through the special design of the connection holes 2, this cable support can adapt to the deviation of the position of the embedded parts during shield tunnel construction, ensuring that the support can be accurately installed even under complex construction conditions, thus improving the construction efficiency and safety. The circular hole design of the first branch 201 and the third branch 203, as well as the optimized layout of the first load-bearing member 3, effectively improve the contact stability between the cable support and the tunnel connection surface and the reliability of cable load-bearing. The split design of the connecting member 1 and the first load-bearing member 3, as well as the existence of the second branch 202, make on-site installation and adjustment more flexible and convenient, reducing the construction difficulty and cost. By reasonably designing the number and distribution of the connection holes 2, as well as the central angle range between the first branch 201 and the third branch 203, the structure of this cable support is more optimized, reducing material waste while ensuring the strength and durability of the support.

[0051] The surface of the first connection portion 101 away from the second connection portion 102 is the first plane, and the surface of the second connection portion 102 away from the first connection portion 101 is the second plane, and the first plane is perpendicular to the second plane.

[0052] Specifically, this embodiment provides a cable support that can adapt to construction deviation, including a first connection portion 101 and a second connection portion 102. The surface of the first connection portion 101 away from the second connection portion 102 is the first plane, which is used to connect with the embedded sleeve; the surface of the second connection portion 102 away from the first connection portion 101 is the second plane, which is used to connect with the first load-bearing member 3. The first plane and the second plane form a right-angle connection, ensuring the stability of the cable support and the horizontal installation of the first load-bearing member 3.

[0053] For the cable support proposed by the present invention, due to the design of its first connection portion 101 and second connection portion 102, it can effectively cope with construction deviation, improving the installation flexibility and adaptability of the cable support.

[0054] Furthermore, the connection holes 2 are strip-shaped holes.

[0055] A plurality of first mounting holes 4 are provided on the second connection portion 102, and the first load-bearing member 3 can be selectively arranged on the second connection portion 102 through at least two of the plurality of first mounting holes 4.

[0056] Specifically, an embodiment of the present invention proposes an improved connection structure, in which the installation flexibility of the first carrier 3 is enhanced. Specifically, the second connection portion 102 is designed with a plurality of first mounting holes 4. These first mounting holes 4 are arranged on the second connection portion 102 in a certain layout manner, so that the first carrier 3 can be fixed to the second connection portion 102 through at least two first mounting holes 4. This design allows the position of the first carrier 3 on the second connection portion 102 to be finely adjusted according to actual needs, so as to adapt to different installation conditions or requirements. By providing a plurality of first mounting holes 4 on the second connection portion 102, the connection structure of the present invention can better adapt to the installation deviation on site, ensure that the first carrier 3 can be stably installed even under non-ideal conditions, and improve the adaptability and stability of the entire bracket structure. This design can not only adapt to the feature that the cable bracket can be used in both forward and reverse directions, but also ensure that after the bracket is flipped, the first carrier 3 can still be accurately and reliably installed on the second connection portion 102, thereby enhancing the overall compatibility and application range of the structure. Since the first carrier 3 can adapt to different embedded part positions by adjusting the use of the first mounting holes 4, during the installation process, no additional positioning tools or complex adjustment steps are required, greatly simplifying the installation process, reducing the installation difficulty, and improving the work efficiency. When the position of the embedded part of the traditional cable bracket is offset, it may be necessary to customize or replace the bracket, while the connection structure of the present invention can adapt to the offset by adjusting the installation position of the first carrier 3, reducing the material waste caused by the deviation of the embedded part position. During later maintenance or cable adjustment, it can be achieved by adjusting the position of the first carrier 3 in the first mounting holes 4, without disassembling or replacing the entire cable bracket, significantly improving the convenience and economy of the maintenance work.

[0057] The first carrier 3 includes: a mounting portion 302, the mounting portion 302 is connected to the second connection portion 102, and a plurality of second mounting holes corresponding to the plurality of first mounting holes 4 are provided on the mounting portion 302, and the first mounting holes and the second mounting holes are detachably connected by locking members;

[0058] a bearing portion 301, the bearing portion 301 is connected to the mounting portion 302, and the bearing portion 301 extends along the first direction.

[0059] Specifically, in this embodiment, the design of the first carrier 3 fully considers modularity and adjustability. The installation part 302 is designed to have a structure matching the second connection part 102, and is configured with a plurality of second installation holes thereon, and these holes form a one-to-one correspondence with the first installation holes 4 on the second connection part 102. Through this corresponding hole design, the installation part 302 and the second connection part 102 can be detachably connected by bolts and nuts, which is convenient for maintenance and adjustment of the equipment position. The bearing part 301 is firmly connected to the installation part 302 and is characterized by extending along the first direction to provide sufficient supporting force and stability. The extending direction and length of the bearing part 301 can be designed and adjusted according to the load requirements and space limitations in actual applications to ensure that the equipment can safely and stably carry the expected weight.

[0060] Through the cooperation of the second installation holes on the installation part 302 and the first installation holes 4 on the second connection part 102, this design allows the first carrier 3 to be installed at multiple positions, improving the adaptability and flexibility of the equipment. The first carrier 3 and the second connection part 102 connected by bolts and nuts can be easily disassembled and reinstalled, which is not only convenient for equipment maintenance, but also enables quick adjustment of the equipment position or replacement of components when needed. The extending design of the bearing part 301 along the first direction ensures the stability of the equipment when supporting the load, reducing potential safety hazards caused by unstable structures. The length of the bearing part 301 can be adjusted according to actual needs, which helps to optimize the equipment layout in a limited space and improve space utilization. Through the preset installation holes and locking parts (the cooperation of bolts and nuts), the installation process becomes more intuitive and simple, reducing installation time and possible errors.

[0061] Furthermore, the cable bracket further includes a plurality of locking parts, and the plurality of locking parts correspond to the plurality of first installation holes 4 one by one. At least part of each locking part can be inserted into the corresponding first installation hole 4 to install the first carrier 3 on the second connection part 102 through each locking part.

[0062] The first carrier 3 includes an installation part 302, and the installation part 302 includes: a first installation sub-part 3021, the width of the first installation sub-part 3021 in the second direction gradually increases along the direction close to the second connection part 102, and the small-diameter end of the first installation sub-part 3021 is connected to the bearing part 301;

[0063] a second installation sub-part 3022, one end of the second installation sub-part 3022 is connected to the large-diameter end of the first installation sub-part 3021, the second installation sub-part 3022 is a rectangular plate, and the width of the rectangular plate is equal to the width of the large-diameter end of the first installation sub-part 3021;

[0064] Wherein, the second direction is perpendicular to the first direction.

[0065] Specifically, the mounting portion 302 of the present invention is designed as a gradually expanding structure, mainly including a first mounting sub-portion 3021 and a second mounting sub-portion 3022. Specifically, the width of the first mounting sub-portion 3021 in the second direction gradually increases from the small-diameter end connected to the bearing portion 301 along the direction close to the second connecting portion 102. This gradually expanding design enables the first mounting sub-portion 3021 to better adapt to the fixing requirements on mounting surfaces of different thicknesses, especially when the thickness of the mounting surface changes or there is an installation deviation, a more stable fixing effect can be achieved by adjusting the contact position between the mounting sub-portion and the mounting surface. One end of the second mounting sub-portion 3022 is connected to the large-diameter end of the first mounting sub-portion 3021, and the second mounting sub-portion 3022 is a rectangular plate structure, and its width is equal to the width of the large-diameter end of the first mounting sub-portion 3021. This design enables the entire mounting portion 302 to have a uniform width in the second direction, which is convenient for alignment with a preset fixing structure (such as a bolt hole, etc.), thereby improving the accuracy and efficiency of installation. In this embodiment, the first direction and the second direction are perpendicular to each other, that is, the first direction is the extension direction of the bearing portion 301, and the second direction is the direction of the width change of the mounting portion 302. Such a structural design can not only ensure the stability of the mounting portion 302 in the first direction, but also can adjust the mounting position in the second direction to adapt to mounting surfaces of different thicknesses, thereby enhancing the adaptability and stability of the entire structure.

[0066] Through the gradual expansion design of the first installation sub-section 3021, the present invention can better adapt to installation surfaces of different thicknesses, especially in environments such as shield tunnels where embedded parts may deflect or thickness changes, and can achieve stable fixation by fine-tuning the installation position, avoiding the problem of unstable fixation caused by the thickness change of the installation surface in the traditional fixing method. The rectangular plate design of the second installation sub-section 3022 ensures that the width of the installation section 302 in the second direction is uniform, which helps to quickly align with the preset fixed structure and improve the accuracy and efficiency of the installation process. Since the first installation sub-section 3021 is connected to the small-diameter end of the bearing part 301 and gradually widens in the direction close to the second connecting part 102, this structure can ensure that the bearing part 301 is firmly connected to the installation part 302, and the stability of the overall structure is further enhanced through the rectangular plate structure of the second installation sub-section 3022. Since the width of the second installation sub-section 3022 is consistent with the width of the large-diameter end of the first installation sub-section 3021, the installation part 302 of the present invention can be applied to a variety of fixed structures, improving its versatility and applicability in different scenarios. By adjusting the position of the installation portion 302 in the second direction, the offset of different embedded parts can be flexibly adapted, ensuring that the cable bracket can achieve the predetermined in-situ installation even when there is a construction deviation, thereby greatly improving the flexibility and applicability of the installation.

[0067] The width of the first installation branch 3021 in the second direction is 60 mm; and / or,

[0068] The width of the second installation branch 3022 in the second direction is 105 mm.

[0069] Specifically, the width of the first installation branch 3021 in the second direction is designed to be 60 mm, while the width of the second installation branch 3022 in the second direction is designed to be 105 mm. This design takes into account the stress conditions during cable laying and the arrangement requirements of the cables, enabling the cross arm to have different support characteristics in the width direction, so as to better adapt to different specifications of cables and the installation requirements of multi-layer cables. The width of the first installation branch 3021 is designed to be 60 mm, which enables the installation part 302 to provide a more concentrated supporting force at the cable fixing point, helping to improve the stability and uniform stress of the cable at this point and preventing deformation or damage of the cross arm caused by uneven cable weight distribution. The width of the second installation branch 3022 is 105 mm. The wider design can carry more or heavier cables. Especially in the support of multi-layer cables, the wider second installation branch 3022 can disperse the cable weight, reduce the local stress of the cross arm, and enhance the stability and reliability of the overall structure. By setting the first installation branch 3021 and the second installation branch 3022 with different widths, the cross arm can flexibly adapt to different types of cables. Whether it is a single cable or multiple cables, whether it is a light cable or a heavy cable, a suitable support point can be found, thus improving the versatility and adaptability of the cable bracket. This design also facilitates subsequent cable maintenance and replacement work. The installation branches with different widths can be flexibly adjusted according to the cable maintenance requirements without large-scale modification or replacement of the cable bracket.

[0070] The connecting member 1 further includes: a spare hole 5, which is provided between two adjacent first mounting holes 4 on the second connecting portion 102, and the first carrier 3 can be selectively arranged on the second connecting portion 102 through the spare hole 5.

[0071] Specifically, in the arc-shaped cable bracket with dual use of front and back of the present invention, in addition to the conventional first mounting holes, the second connecting portion 102 is also designed with spare holes 5. These spare holes 5 are arranged between two adjacent first mounting holes 4 on the second connecting portion 102. This design is mainly to enhance the flexibility and adaptability of the cable bracket. When the bracket needs to be used in a front-back flipped manner, the spare holes 5 ensure that even after flipping, the second connecting portion 102 can still be connected to the cable bracket through these spare holes, so as to meet the cross arm installation requirements in different situations. Refer to Figure 2, the setting position and quantity of the spare hole 5 need to be determined according to the installation spacing and size of the second connecting part 102 to ensure that the second connecting part 102 can be accurately installed at the predetermined position whether the cable bracket is installed forward or backward. This method not only solves the problem of the deviation of the embedded part position caused by construction deviation, but also further improves the on-site adaptability and installation efficiency of the cable bracket.

[0072] By providing the spare hole 5 on the second connecting part 102, the arc-shaped cable bracket with dual-use forward and reverse of the present invention can flexibly adjust the installation method in the face of shield construction deviation. Even if the position of the embedded sleeve is offset, the normal installation and use of the bracket can be ensured, greatly enhancing the on-site adaptability of the cable bracket. The setting of the spare hole 5 reduces the on-site adjustment and re-drilling work caused by the deviation of the embedded part, avoids construction delays, and improves the installation efficiency and construction progress of the cable bracket. The design of the spare hole 5 makes the dual-use forward and reverse characteristics of the cable bracket more obvious. The installer does not need to perform complex measurements and adjustments. Just select the forward or reverse installation according to the on-site situation, and the fixing of the bracket can be quickly completed, simplifying the installation process. Even in the case of deviation in shield tunnel construction, the cable bracket can reach the predetermined installation position through forward and reverse flipping and the use of the spare hole, thus ensuring the quality and safety of cable laying.

[0073] The first connecting part 101 and / or the second connecting part 102 is an arc-shaped plate; and / or,

[0074] The thickness of the connecting piece 1 and / or the first bearing piece 3 is 3 mm to 5 mm.

[0075] Specifically, in the design of the cable bracket, the first connecting portion 101 and the second connecting portion 102 are in the form of arc-shaped plates, mainly to adapt to the arc-shaped surface of the shield tunnel, thereby providing a better contact surface and more uniform force. The arc-shaped plates can ensure that the connecting portions can still fit tightly with the tunnel surface in the case of construction deviations in the shield tunnel, ensuring the stability of the bracket and the safety of the cable. The thicknesses of the connecting member 1 and the first load-bearing member 3 are set between 3 mm and 5 mm, aiming to balance the structural strength and material cost, and at the same time ensure that these components will not deform or be damaged when bearing the weight of the cable and the external forces that may be brought by the tunnel environment. The selection of the thickness also needs to consider the feasibility of the processing technology, as well as the convenience of installation and maintenance. The arc-shaped plates of the first connecting portion 101 and the second connecting portion 102 are usually made of high-strength steel, such as Q235 or Q345, to ensure sufficient load-bearing capacity and corrosion resistance. The selection of the material also needs to consider the compatibility with the segments of the shield tunnel to avoid installation problems caused by material differences. The materials of the connecting member 1 and the first load-bearing member 3 also need to have good mechanical properties and corrosion resistance to ensure that they are not affected during long-term use in the tunnel environment. The materials with a thickness between 3 mm and 5 mm can be processed into the required sizes and shapes by means such as laser cutting or stamping. The bending radius of the arc-shaped plates should match the inner diameter of the shield tunnel to ensure the degree of fit. During processing, a rolling machine or a press can be used for bending processing to ensure the accuracy of the arc. When processing the connecting member 1 and the first load-bearing member 3, precise hole positions need to be processed on the plates with a thickness of 3 mm to 5 mm to match the size of the bolts. The setting of the hole positions should consider the dual-purpose characteristics of the cable bracket to ensure that the bolts can pass through and be fixed smoothly whether the bracket is installed correctly or reversely. During installation, first check whether the curvature of the arc-shaped plates completely matches the inner wall of the tunnel. If there are construction deviations, the installation position can be adjusted by flipping the cable bracket, and by using the characteristics of the long holes of the bolts, ensure that the embedded sleeves are aligned with the bolt holes. The tightening of the bolts should follow appropriate torque requirements to avoid damaging the arc-shaped plates or the embedded sleeves. During installation, a torque wrench can be used to control the tightening force to ensure a firm connection without being excessive.

[0076] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0077] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0078] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary statements, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present invention; the orientation terms "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0079] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above", etc. can be used here to describe the spatial positional relationships of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0080] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statements, the above words have no special meanings, and thus cannot be construed as limiting the protection scope of the present invention.

[0081] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cable support that can be adjusted in both directions to accommodate shield construction deviations, characterized in that: include: A connecting piece (1), the connecting piece (1) being used for connecting to a connecting surface of a shield tunnel, the connecting piece (1) comprising a first connecting portion (101) and a second connecting portion (102), the first connecting portion (101) being provided with a plurality of connecting holes (2), the connecting holes (2) comprising a first sub-portion (201), a second sub-portion (202) and a third sub-portion (203) which are connected in sequence, the first sub-portion (201) and the third sub-portion (203) being both circular holes; A first bearing member (3), the first bearing member (3) being arranged on the second connecting portion (102), the first bearing member (3) being used for bearing the cable; Wherein, the plurality of connection holes (2) satisfy the following relationship: α＝2(n+1)β ； Wherein: α represents the central angle of the connecting member; β represents the central angle between the first subsection and the third subsection; n represents the number of the connecting holes.

2. The cable support that can be adjusted in both directions according to claim 1 is characterized in that: The value range of the central angle of the connecting member (1) is 5 degrees < α ≤ 180 degrees.

3. The cable support that can be adjusted in both directions and can adapt to the deviation of shield construction according to claim 1 is characterized in that: The value range of the central angle of the first subsection (201) and the third subsection (203) is both 0 degree < β ≤ 2 degrees.

4. The cable support that can be adjusted in both positive and negative directions and can adapt to the deviation of shield construction according to claim 1 is characterized in that: The surface of the first connecting portion (101) away from the second connecting portion (102) is a first plane, the surface of the second connecting portion (102) away from the first connecting portion (101) is a second plane, and the first plane is perpendicular to the second plane.

5. The cable support that can be adjusted in both directions and can adapt to the deviation of shield construction according to claim 1 is characterized in that: The connecting hole (2) is a strip-shaped hole.

6. The cable support that can be adjusted in both positive and negative directions and can adapt to the deviation of shield construction according to claim 1 is characterized in that: A plurality of first mounting holes (4) are provided on the second connecting portion (102), and the first bearing member (3) can be selectively arranged on the second connecting portion (102) through at least two of the plurality of first mounting holes (4).

7. The cable support that can be adjusted in both directions and can adapt to the deviation of shield construction according to claim 6 is characterized in that: It also includes a plurality of locking members, each of which corresponds to the plurality of first mounting holes (4) one by one, and each of the locking members can be at least partially inserted into the first mounting hole (4) corresponding thereto, so that the first bearing member (3) can be mounted on the second connecting portion (102) through each of the locking members.

8. The cable support that can be adjusted in both directions and can adapt to the deviation of shield construction according to claim 7 is characterized in that: The first bearing member (3) comprises: a mounting portion (302), the mounting portion (302) being connected to the second connecting portion (102), the mounting portion (302) being provided with a plurality of second mounting holes corresponding one-to-one to the plurality of first mounting holes (4), the first mounting holes being detachably connected to the second mounting holes via a locking member; A bearing portion (301), the bearing portion (301) is connected to the mounting portion (302), and the bearing portion (301) extends along a first direction.

9. The cable support that can be adjusted in both directions and can adapt to the deviation of shield construction according to claim 8 is characterized in that: The mounting portion (302) comprises: A first installation section (3021), wherein the width of the first installation section (3021) in the second direction gradually increases in a direction approaching the second connecting portion (102), and a small-diameter end of the first installation section (3021) is connected to the bearing portion (301); A second installation section (3022), one end of which is connected to the large-diameter end of the first installation section (3021), and the second installation section (3022) is a rectangular plate, the width of which is equal to the width of the large-diameter end of the first installation section (3021); The second direction is perpendicular to the first direction.

10. The cable support that can be adjusted in both positive and negative directions to accommodate shield construction deviations according to claim 7, characterized in that: The connecting member (1) further comprises: A spare hole (5), wherein the spare hole (5) is arranged between two adjacent first mounting holes (4) on the second connecting portion (102), and the first bearing member (3) can be selectively arranged on the second connecting portion (102) through the spare hole (5).

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