Tunnel support device

Abstract

The utility model relates to a tunnel supporting device belongs to the field of tunnel construction technology. Tunnel supporting device includes arched piece, connecting assembly and steel band. Arched piece has the outside of facing tunnel wall and the inside of deviating from tunnel wall, connecting assembly is set up on arched piece along its adjustable setting, one end of connecting assembly is located the inside of arched piece, the other end of connecting assembly is located the outside of arched piece, and is used for abutting with tunnel wall, and connecting assembly is multiple and is set up along the extension direction interval of arched piece, and steel band is adjustablely connected with the other end of multiple connecting assembly along the extension direction of steel band in proper order, and the side of steel band far from arched piece is used for abutting with the part tunnel wall between the other end of adjacent two connecting assembly.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel construction technology, and specifically relates to tunnel support devices. Background Technology

[0002] Tunnel support is a crucial aspect of tunnel construction, referring to a series of technical measures taken to support and reinforce the surrounding rock and soil to ensure construction safety, stability, and smooth operation. These measures effectively control surrounding rock deformation, prevent collapse accidents, significantly improve construction safety, and ensure the long-term stability of the tunnel structure.

[0003] Tunnel support typically uses materials such as steel components, reinforcing bars, and concrete. Many existing support systems employ prefabricated steel components welded on-site. However, this method presents several problems. Because the steel components are prefabricated, they are difficult to adjust to the tunnel's surface structure. Therefore, traditional tunnel support systems suffer from poor applicability. Utility Model Content

[0004] In view of the above problems, the embodiments of this application provide a tunnel support device that can fit the tunnel wall and has better applicability.

[0005] This application provides a tunnel support device, including an arched member, connecting assemblies, and steel strips. The arched member has an outer side facing the tunnel wall and an inner side facing away from the tunnel wall; the connecting assemblies are adjustablely disposed on the arched member along their axial direction, with one end of the connecting assembly located on the inner side of the arched member and the other end located on the outer side of the arched member, and used to abut against the tunnel wall; there are multiple connecting assemblies spaced apart along the extension direction of the arched member; the steel strip is adjustablely connected sequentially to the other ends of the multiple connecting assemblies along the extension direction of the steel strip, and the side of the steel strip away from the arched member is used to abut against a portion of the tunnel wall located between the other ends of two adjacent connecting assemblies.

[0006] In the above technical solution, by adjusting the connecting component along its axial direction on the arched member, the length of the connecting component at the outer end of the arched member can be adjusted to allow the connecting component to abut against tunnel walls of different structures, thereby improving the applicability of the tunnel support device. Simultaneously, by setting a steel strip and adjusting it sequentially to the other end of multiple connecting components along its extension direction, with the side of the steel strip away from the arched member abutting against a portion of the tunnel wall between the other ends of two adjacent connecting components, the steel strip between two adjacent connecting components can adhere to the tunnel wall and support the tunnel wall through its own tension, thus improving the applicability and reliability of the tunnel support device.

[0007] In some embodiments, the connecting assembly includes a connector and a retaining buckle. The connector is adjustablely disposed on the arched member along its axial direction; the retaining buckle is disposed at one end of the connector located on the outside of the arched member, the side of the retaining buckle facing away from the arched member in its thickness direction is used to abut against the tunnel wall, and the retaining buckle is provided with a first channel passing through the retaining buckle along its length direction, the steel strip passing through the first channel.

[0008] In the above technical solution, by using the side of the fixing buckle facing away from the arched member in its thickness direction to abut against the tunnel wall, the contact area between the fixing buckle and the tunnel wall is increased, thereby improving the reliability of the tunnel support device in supporting the tunnel wall. Simultaneously, by providing a first channel running through the fixing buckle along its length, the steel strip passes through the first channel, increasing the length of the first channel and thus increasing the contact area between the steel strip and the wall of the first channel. This facilitates the preliminary fixing of the steel strip and the fixing buckle before welding, thereby facilitating the welding of the steel strip and the fixing buckle.

[0009] In some embodiments, the outer periphery of the connector is provided with an external thread, and the fixing buckle is provided with a threaded hole that engages with the external thread on the side of its thickness facing the arched member, the threaded hole communicating with the first channel; along the thickness direction of the fixing buckle, a portion of the steel strip is sandwiched between the wall of the first channel away from the threaded hole and the connector.

[0010] In the above technical solution, by clamping a portion of the steel strip between the wall of the first channel away from the threaded hole and the connector, it is convenient to fix the steel strip located between two adjacent fixing buckles, so that the steel strip can abut against the tunnel wall and have a certain surface tension, so that the steel strip does not need to be tightened with other tools before welding the steel strip and fixing buckle.

[0011] In some embodiments, the arched member is provided with a through hole extending from the inner side to the outer side of the arched member, the through hole being for the connector to pass through, and the outer periphery of the connector being provided with an external thread; the connecting assembly further includes two first nuts, the two first nuts being sleeved on the outside of the connector and both being threadedly engaged with the external thread, the two first nuts being located on the inner side and the outer side of the arched member, respectively.

[0012] In the above technical solution, by setting two first nuts, the connector can be fixedly set on the arched part, which facilitates the fine adjustment and fixation of the position of the connector before welding the arched part and the connector, thereby improving the contact stability between the connector and the tunnel wall. The structure is simple and easy to implement.

[0013] In some embodiments, the arched members are a plurality of those spaced apart along the tunnel extension direction.

[0014] In the above technical solution, by arranging multiple arched components at intervals along the tunnel extension direction to support different parts of the tunnel, the reliability of the tunnel support device is improved.

[0015] In some embodiments, the tunnel support device further includes a protective net that connects two adjacent arch members and is used to cover the gap between the two adjacent arch members.

[0016] In the above technical solution, the risk of rocks falling and injuring people between two adjacent arched components is reduced by setting up a protective net.

[0017] In some embodiments, the connecting assembly further includes a second nut, which is sleeved on the connector and threaded with the external thread, and a portion of the protective mesh is sandwiched between the first nut and the second nut.

[0018] In the above technical solution, by setting a second nut, the protective net is fixed by using the external thread on the connector, which helps to simplify the tunnel support device and facilitates the manufacturing of prefabricated components and on-site assembly of the tunnel support device.

[0019] In some embodiments, the protective netting is located inside the arched member.

[0020] In the above technical solution, by setting the protective net inside the arched component, the protective net and the steel strip are located on opposite sides of the arched component, thereby reducing the risk of interference between the protective net and the steel strip during installation.

[0021] In some embodiments, the tunnel support device further includes a reinforcing member, the arched member having a first end and a second end disposed opposite to each other in its extending direction, and there are two reinforcing members, one of which is sequentially connected to the first ends of a plurality of arched members, and the other of which is sequentially connected to the second ends of a plurality of arched members.

[0022] In the above technical solution, by setting two reinforcing members to connect the first and second ends of multiple arched members respectively, the integrity of the tunnel support device is improved, which is conducive to improving the structural strength of the tunnel support device.

[0023] In some embodiments, the connector is a bolt.

[0024] In the above technical solution, by setting the connecting parts as bolts, the versatility of the tunnel support device parts is improved, which helps to reduce the production cost of the tunnel support device. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the tunnel support device provided in an embodiment of the present utility model; Figure 2 This is a structural cross-sectional view of the connecting component provided in an embodiment of the present utility model; Figure 3 A schematic diagram of another tunnel support device provided in this embodiment of the present utility model; Figure 4 This is a schematic diagram of another tunnel support device provided in an embodiment of the present invention from another direction. Detailed Implementation

[0027] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0028] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] Reference Figures 1-4 This application provides a tunnel support device, including an arched member 10, connecting components 20, and a steel strip 30. The arched member 10 has an outer side facing the tunnel wall and an inner side facing away from the tunnel wall; the connecting components 20 are adjustablely disposed on the arched member 10 along their axial direction, with one end of the connecting components 20 located on the inner side of the arched member 10 and the other end of the connecting components 20 located on the outer side of the arched member 10 and used to abut against the tunnel wall, and multiple connecting components 20 are spaced apart along the extension direction of the arched member 10; the steel strip 30 is adjustablely connected to the other ends of the multiple connecting components 20 in sequence along the extension direction of the steel strip 30, and the side of the steel strip 30 away from the arched member 10 is used to abut against a portion of the tunnel wall located between the other ends of two adjacent connecting components 20.

[0032] In this technical solution, by adjusting the connecting component 20 along its axial direction on the arched member 10, the length of the end of the connecting component 20 located outside the arched member 10 can be adjusted to allow the connecting component 20 to abut against tunnel walls of different structures, thereby improving the applicability of the tunnel support device. Simultaneously, by providing a steel strip 30, and adjusting the connection between the other ends of multiple connecting components 20 along the extension direction of the steel strip 30, the side of the steel strip 30 away from the arched member 10 abuts against a portion of the tunnel wall between the other ends of two adjacent connecting components 20. This allows the steel strip 30 located between two adjacent connecting components 20 to adhere to the tunnel wall and support the tunnel wall through its own tension, thereby improving the applicability and reliability of the tunnel support device.

[0033] According to some embodiments of this application, the connecting assembly 20 includes a connector 21 and a retaining buckle 22. The connector 21 is adjustablely disposed on the arched member 10 along its axial direction; the retaining buckle 22 is disposed at one end of the connector 21 located outside the arched member 10, and the side of the retaining buckle 22 facing away from the arched member 10 in its thickness direction is used to abut against the tunnel wall. The retaining buckle 22 is provided with a first channel passing through the retaining buckle 22 along its length direction, and the steel strip 30 passes through the first channel.

[0034] In this technical solution, by using the side of the fixing buckle 22 facing away from the arched member 10 in its thickness direction to abut against the tunnel wall, the contact area between the fixing buckle 22 and the tunnel wall is increased, thereby improving the reliability of the tunnel support device in supporting the tunnel wall. Simultaneously, by providing a first channel running through the fixing buckle 22 along its length, the steel strip 30 passes through the first channel, increasing the length of the first channel and thus increasing the contact area between the steel strip 30 and the wall of the first channel. This facilitates the preliminary fixing of the steel strip 30 and the fixing buckle 22 before welding, thereby facilitating the welding of the steel strip 30 and the fixing buckle 22.

[0035] According to some embodiments of this application, the outer periphery of the connector 21 is provided with an external thread, and the fixing buckle 22 is provided with a threaded hole that engages with the external thread on the side of its thickness facing the arched member 10, and the threaded hole communicates with the first channel; along the thickness direction of the fixing buckle 22, a portion of the steel strip 30 is sandwiched between the wall of the first channel away from the threaded hole and the connector 21.

[0036] In this technical solution, by clamping a portion of the steel strip 30 between the wall of the first channel away from the threaded hole and the connector 21, it is convenient to fix the steel strip 30 located between two adjacent fixing buckles 22, so that the steel strip 30 can abut against the tunnel wall and have a certain surface tension, so that the steel strip 30 does not need to be tightened with other tools before welding the steel strip 30 and the fixing buckle 22.

[0037] According to some embodiments of this application, the arched member 10 is provided with a through hole 101, which extends from the inner side of the arched member 10 to the outer side of the arched member 10. The through hole 101 is used for the connector 21 to pass through, and the outer periphery of the connector 21 is provided with an external thread. The connecting assembly 20 also includes two first nuts 23, which are sleeved on the outside of the connector 21 and are threaded with the external thread. The two first nuts 23 are located on the inner side and the outer side of the arched member 10, respectively.

[0038] In this technical solution, by setting two first nuts 23, the connector 21 can be fixedly set on the arched part 10, which facilitates the fine adjustment and fixing of the position of the connector 21 before welding the arched part 10 and the connector 21, thereby improving the contact stability between the connecting assembly 20 and the tunnel wall. The structure is simple and easy to implement.

[0039] According to some embodiments of this application, the arched members 10 are a plurality of those spaced apart along the tunnel extension direction.

[0040] In this technical solution, by arranging multiple arched members 10 at intervals along the tunnel extension direction to support different parts of the tunnel, the reliability of the tunnel support device is improved.

[0041] According to some embodiments of this application, the tunnel support device further includes a protective net 40, which connects two adjacent arch members 10 and is used to cover the gap between the two adjacent arch members 10.

[0042] In this technical solution, the risk of rocks falling and injuring people between two adjacent arched components 10 is reduced by setting up a protective net 40.

[0043] According to some embodiments of this application, the connecting component 20 further includes a second nut 24, which is sleeved on the outside of the connecting member 21 and is threaded with the external thread, and a portion of the protective net 40 is sandwiched between the first nut 23 and the second nut 24.

[0044] In this technical solution, by setting a second nut 24, the protective net 40 is fixed by the external thread on the connector 21, which helps to simplify the tunnel support device and facilitates the manufacturing of prefabricated components and on-site assembly of the tunnel support device.

[0045] According to some embodiments of this application, the protective net 40 is located inside the arched member 10.

[0046] In this technical solution, by setting the protective net 40 inside the arched member 10, the protective net 40 and the steel strip 30 are located on opposite sides of the arched member 10, thereby reducing the risk of mutual interference between the protective net 40 and the steel strip 30 during installation.

[0047] According to some embodiments of this application, the tunnel support device further includes a reinforcing member 50, and the arched member 10 has a first end 11 and a second end 12 disposed opposite to each other in its extending direction. There are two reinforcing members 50, one of which is sequentially connected to the first end 11 of a plurality of arched members 10, and the other of which is sequentially connected to the second end 12 of a plurality of arched members 10.

[0048] In this technical solution, by setting two reinforcing members 50 to connect the first end 11 and the second end 12 of multiple arched members 10 respectively, the integrity of the tunnel support device is improved, which is conducive to improving the structural strength of the tunnel support device.

[0049] According to some embodiments of this application, the connector 21 is a bolt.

[0050] In this technical solution, by setting the connector 21 as a bolt, the versatility of the tunnel support device parts is improved, which helps to reduce the production cost of the tunnel support device. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0051] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tunnel support device, characterized in that, include: An arched member having an outer side facing the tunnel wall and an inner side facing away from the tunnel wall; A connecting assembly is adjustablely disposed on the arched member along its axial direction. One end of the connecting assembly is located on the inner side of the arched member, and the other end of the connecting assembly is located on the outer side of the arched member and is used to abut against the tunnel wall. The connecting assemblies are multiple ones spaced apart along the extension direction of the arched member. A steel strip is adjustablely connected in sequence to the other end of a plurality of the connecting assemblies along the extension direction of the steel strip, the side of the steel strip away from the arched member being used to abut against a portion of the tunnel wall located between the other ends of two adjacent connecting assemblies.

2. The tunnel support device according to claim 1, characterized in that, The connection component includes: A connector is adjustable along its axial direction on the arched member; A fixing buckle is provided at one end of the connector located on the outside of the arched member. The side of the fixing buckle facing away from the arched member in its thickness direction is used to abut against the tunnel wall. The fixing buckle is provided with a first channel that passes through the fixing buckle along its length direction, and the steel strip passes through the first channel.

3. A tunnel support device according to claim 2, characterized in that, The outer periphery of the connector is provided with an external thread, and the fixing buckle is provided with a threaded hole that engages with the external thread on the side of its thickness facing the arched part, and the threaded hole communicates with the first channel; Along the thickness direction of the fixing buckle, a portion of the steel strip is sandwiched between the wall of the first channel away from the threaded hole and the connector.

4. The tunnel support device according to claim 2, characterized in that, The arched component is provided with a through hole, which extends from the inner side of the arched component to the outer side of the arched component. The through hole is used for the connector to pass through, and the outer periphery of the connector is provided with an external thread. The connection component also includes: Two first nuts are fitted over the connector and are threaded into the external thread. The two first nuts are located on the inner side and the outer side of the arched component, respectively.

5. The tunnel support device according to claim 4, characterized in that, The arched components are multiple ones spaced apart along the tunnel's extension direction.

6. A tunnel support device according to claim 5, characterized in that, The tunnel support device also includes a protective net that connects two adjacent arched members and is used to cover the gap between the two adjacent arched members.

7. The tunnel support device according to claim 6, characterized in that, The connection component also includes: The second nut is sleeved on the outside of the connector and is threaded with the external thread. A portion of the protective net is sandwiched between the first nut and the second nut.

8. The tunnel support device according to claim 7, characterized in that, The protective net is located inside the arched component.

9. The tunnel support device according to claim 7, characterized in that, The tunnel support device further includes reinforcing members. The arched member has a first end and a second end that are arranged opposite to each other in its extension direction. There are two reinforcing members. One of the two reinforcing members is connected to the first end of a plurality of arched members in sequence, and the other of the two reinforcing members is connected to the second end of a plurality of arched members in sequence.

10. The tunnel support device according to any one of claims 2-9, characterized in that, The connecting component is a bolt.

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