Subway tunnel deformation detection device

Abstract

The utility model belongs to the technical field of tunnel detection, and particularly relates to a subway tunnel deformation detection device which comprises a high-strength support, the high-strength support is of a double-flange steel structure formed by welding first U-shaped steel and second U-shaped steel which are connected in an embracing mode, and web plate parts of the first U-shaped steel and the second U-shaped steel are inwards concaved to form bent sections. The high-strength support is attached to the inner wall of the subway tunnel in a matched mode, a connecting plate is welded to the side face of the high-strength support, an anchor bolt connected with the inner wall of the subway tunnel in an anchoring mode is inserted into the connecting plate, a plurality of multi-point monitoring assemblies are installed on the high-strength support, and each multi-point monitoring assembly comprises a first clamping plate which is connected with a second clamping plate through a bolt. A linear displacement sensor is clamped between the first clamping plate and the second clamping plate. The high-strength support is of a double-flange steel pipe structure, the overall strength is high, and the multi-point type monitoring assembly installed in a multi-point mode can be stably supported for a long time. The web part of the high-strength support is bent inwards to form the W-shaped structure, and the bending resistance of the support is further enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel detection, and in particular relates to a subway tunnel deformation detection device. Background Art

[0002] The development of subway tunnel deformation monitoring technology has undergone a transformation from traditional manual inspections to modern automated monitoring systems. Traditional monitoring methods primarily include manual visual inspections and vernier caliper measurements. These methods are not only time-consuming and labor-intensive, but also suffer from limited accuracy, making it difficult to detect even subtle changes in tunnel deformation. With technological advancements, high-precision monitoring technologies such as laser ranging, radar scanning, and fiber optic sensing have been introduced to the field of subway tunnel deformation monitoring. While these technologies improve monitoring accuracy, they often face challenges such as complex installation, high costs, and susceptibility to environmental interference.

[0003] When monitoring deformation in subway tunnels, the placement of monitoring points and the stability of the supporting structure are critical factors. Monitoring points must accurately reflect the deformation of the tunnel's inner wall, while the supporting structure must withstand the various mechanical forces within the tunnel, ensuring long-term stability and reliability. Traditional monitoring devices typically utilize simple brackets or fixtures, which often lack sufficient strength and stability. These devices are prone to deformation or failure in the complex geological and mechanical environments of subway tunnels, thus affecting the accuracy of monitoring results. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide a subway tunnel deformation detection device to solve the problem that traditional monitoring devices lack sufficient strength and stability, which easily affects the accuracy of monitoring results.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a subway tunnel deformation detection device, comprising a high-strength bracket, wherein the high-strength bracket is a double-flange steel structure composed of mutually embraced U-shaped steel 1 and U-shaped steel 2 welded together, the web portions of the U-shaped steel 1 and U-shaped steel 2 being concavely formed with a bending section, the outer side surface of the high-strength bracket being adapted to fit the inner wall of the subway tunnel, the side surface of the high-strength bracket being welded with a connecting plate, the connecting plate being installed with an anchor bolt for anchoring the inner wall of the subway tunnel, a plurality of multi-point monitoring components being installed on the high-strength bracket, the multi-point monitoring components comprising a clamping plate 1, the clamping plate 1 being connected to the clamping plate 2 by bolts, a linear displacement sensor being clamped between the clamping plate 1 and the clamping plate 2.

[0006] The beneficial effects of the present invention are as follows: the high-strength bracket is a double-flange steel pipe structure with high overall strength, which can stably support multi-point monitoring components installed at multiple points for a long time; the web part of the high-strength bracket is bent inward into a W-shaped structure, which further enhances the bending resistance of the bracket.

[0007] In order to effectively ensure the connection strength between U-shaped steel 1 and U-shaped steel 2;

[0008] As a further improvement of the above technical solution: the ends of the U-shaped steel 1 and the U-shaped steel 2 are bent to form a clamping section, and grooves adapted to clamp the clamping section are formed on the webs of the U-shaped steel 1 and the U-shaped steel 2.

[0009] The beneficial effect of this improvement is that the U-shaped steel 1 and the U-shaped steel 2 are connected to each other through the clamping section, and then welded and the high-strength bracket is bent as a whole. Compared with the simple welding connection method, the stability of the connection between the U-shaped steel 1 and the U-shaped steel 2 is effectively improved.

[0010] In order to further improve the structural strength of the high-strength bracket;

[0011] As a further improvement of the above technical solution: the web parts of the U-shaped steel 1 and the U-shaped steel 2 are W-shaped steel structures.

[0012] The beneficial effect of this improvement is that the web portions of the U-shaped steel 1 and the U-shaped steel 2 are bent inwardly into a W-shaped structure, further enhancing the bending resistance of the bracket.

[0013] In order to effectively ensure the strength of the connection between the high-strength bracket and the inner wall of the subway tunnel;

[0014] As a further improvement of the above technical solution: the connecting plates are relatively arranged on the two webs of the high-strength bracket, and the connecting plates are equidistantly spaced on the high-strength bracket.

[0015] The beneficial effect of this improvement is that the connecting plates that are symmetrically arranged and installed at equal intervals on the high-strength bracket can stably connect the high-strength bracket to the inner wall of the subway tunnel.

[0016] In order to achieve convenient installation of multi-point monitoring components;

[0017] As a further improvement of the above technical solution: the clamping plate 1 and the clamping plate 2 have the same structure, the clamping plate 1 is welded to the high-strength bracket, and the clamping plate 1 and the clamping plate 2 are formed with grooves that fit the curved side surfaces of the linear displacement sensor.

[0018] The beneficial effect of this improvement is that the clamping plate 1 and the clamping plate 2 can be quickly connected by bolts, and the linear displacement sensor can be firmly clamped after the position of the linear displacement sensor is adjusted by sliding.

[0019] In order to comprehensively detect the deformation of the inner wall of the subway tunnel;

[0020] As a further improvement of the above technical solution: a plurality of the multi-point monitoring components are arranged at equal intervals on the high-strength bracket.

[0021] The beneficial effect of this improvement is that multiple multi-point monitoring components arranged at equal intervals can comprehensively monitor the inner wall of the subway tunnel.

[0022] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 This is a schematic cross-sectional view of a medium- and high-strength bracket of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the multi-point monitoring component in the present utility model;

[0026] In the figure: 1. High-strength bracket; 11. U-shaped steel 1; 12. U-shaped steel 2; 13. Clamping section; 14. Bending section; 2. Connecting plate; 3. Multi-point monitoring assembly; 31. Clamping plate 1; 32. Clamping plate 2; 33. Linear displacement sensor. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0028] Example 1:

[0029] like Figure 1—3 shows: a subway tunnel deformation detection device, comprising a high-strength bracket 1, the high-strength bracket 1 being a double-flange steel structure welded by mutually embracing U-shaped steel 11 and U-shaped steel 2 12, the web portions of the U-shaped steel 11 and U-shaped steel 2 12 being concavely formed with a bending section 14, the outer side surface of the high-strength bracket 1 being adapted to fit the inner wall of the subway tunnel, the side surface of the high-strength bracket 1 being welded with a connecting plate 2, the connecting plate 2 being provided with an anchor bolt for anchoring the inner wall of the subway tunnel, a plurality of multi-point monitoring components 3 being installed on the high-strength bracket 1, the multi-point monitoring component 3 comprising a clamping plate 1 31, the clamping plate The first 31 is connected to the second clamping plate 32 by bolts, and a linear displacement sensor 33 is clamped between the clamping plate 1 31 and the clamping plate 2 32. The high-strength bracket 1 is a double-flange steel pipe structure with high overall strength, which can stably support the multi-point monitoring component 3 installed at multiple points for a long time; the web portion of the high-strength bracket 1 is bent inward to form a W-shaped structure, which further enhances the bending resistance of the bracket. The ends of the U-shaped steel 1 11 and the U-shaped steel 2 12 are bent to form a clamping section 13, and the webs of the U-shaped steel 1 11 and the U-shaped steel 2 12 are formed with grooves adapted to the clamping section 13. The U-shaped steel 1 11 and the U-shaped steel 2 12 are connected to each other through the clamping section 1 3 clamping, and then welding and bending the high-strength bracket 1 as a whole are performed. Compared with the simple welding connection method, the stability of the connection between the U-shaped steel 11 and the U-shaped steel 2 12 is effectively improved. The web parts of the U-shaped steel 11 and the U-shaped steel 2 12 are W-shaped steel structures. The web parts of the U-shaped steel 11 and the U-shaped steel 2 12 are bent inward to form a W-shaped structure, which further enhances the bending resistance of the bracket. The connecting plates 2 are relatively arranged on the two webs of the high-strength bracket 1, and the connecting plates 2 are equidistantly spaced on the high-strength bracket 1. The connecting plates 2 symmetrically arranged and equidistantly installed on the high-strength bracket 1 can make the high-strength bracket 1 stable. It is connected to the inner wall of the subway tunnel. The clamping plate 1 31 and the clamping plate 2 32 have the same structure. The clamping plate 1 31 is welded to the high-strength bracket 1. The clamping plate 1 31 and the clamping plate 2 32 are formed with grooves that fit the curved side surfaces of the linear displacement sensor 33. The clamping plate 1 31 and the clamping plate 2 32 can be quickly connected by bolts, and the linear displacement sensor 33 can be firmly clamped after sliding to adjust the position of the linear displacement sensor 33. Multiple multi-point monitoring components 3 are equidistantly arranged on the high-strength bracket 1. Multiple equidistantly arranged multi-point monitoring components 3 can comprehensively monitor the inner wall of the subway tunnel.

[0030] The working principle of this technical solution is as follows: the high-strength bracket 1 is bent and processed according to the size of the tunnel so that the inner wall of the high-strength bracket 1 fits the inner wall of the subway tunnel, and then an anchor bolt is used to pass through the through hole on the connecting plate 2 and fixed on the inner wall of the subway tunnel. Subsequently, the connecting plate 2 is locked with a nut to complete the fixation of the high-strength bracket 1; the linear displacement sensor 33 is placed in the groove of the clamping plate 1 31, the clamping plate 2 32 is covered on the linear displacement sensor 33 and the clamping plate 1 31, and the clamping plate 1 31 is connected with bolts, and the position of the linear displacement sensor 33 is adjusted by sliding so that the end of the linear displacement sensor 33 maintains a suitable monitoring distance with the inner wall of the subway tunnel, and then the thread can be tightened to lock the linear displacement sensor 33.

[0031] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A subway tunnel deformation detection device, characterized by: The invention comprises a high-strength bracket (1), wherein the high-strength bracket (1) is a double-flange steel structure formed by welding mutually embracing U-shaped steel (11) and U-shaped steel (12), wherein the web portions of the U-shaped steel (11) and the U-shaped steel (12) are inwardly formed with a bending section (14), and the outer side surface of the high-strength bracket (1) is adapted to fit the inner wall of a subway tunnel, and a connecting plate (2) is welded to the side surface of the high-strength bracket (1), wherein the connecting plate (2) is provided with an anchor bolt for anchoring to the inner wall of the subway tunnel, and a plurality of multi-point monitoring components (3) are installed on the high-strength bracket (1), wherein the multi-point monitoring components (3) comprise a clamping plate (31), wherein the clamping plate (31) is connected to the clamping plate (32) by bolts, and a linear displacement sensor (33) is clamped between the clamping plate (31) and the clamping plate (32).

2. The subway tunnel deformation detection device according to claim 1, characterized in that: The ends of the U-shaped steel 1 (11) and the U-shaped steel 2 (12) are both bent to form a clamping section (13), and grooves adapted to clamp the clamping section (13) are formed on the webs of the U-shaped steel 1 (11) and the U-shaped steel 2 (12).

3. The subway tunnel deformation detection device according to claim 1, characterized in that: The web parts of the U-shaped steel 1 (11) and the U-shaped steel 2 (12) are W-shaped steel structures.

4. The subway tunnel deformation detection device according to claim 1, characterized in that: The connecting plates (2) are relatively arranged on the two webs of the high-strength bracket (1), and the connecting plates (2) are arranged at equal intervals on the high-strength bracket (1).

5. The subway tunnel deformation detection device according to claim 1, characterized in that: The clamping plate 1 (31) and the clamping plate 2 (32) have the same structure. The clamping plate 1 (31) is welded to the high-strength bracket (1). The clamping plate 1 (31) and the clamping plate 2 (32) are formed with grooves that fit the curved side surfaces of the linear displacement sensor (33).

6. The subway tunnel deformation detection device according to claim 1, characterized in that: A plurality of the multi-point monitoring components (3) are arranged at equal intervals on the high-strength support (1).

Images