Deformation detection device for tunnel

Abstract

The utility model relates to the technical field of tunnel detection, and discloses a deformation detection device for a tunnel, which comprises connecting strips arranged on the outer walls of the two ends of the tunnel, the shape of the connecting strips is the same as that of the inner wall of the upper end of the tunnel, and the outer walls of the connecting strips are fixedly connected with a plurality of limiting units. A detection rope is connected between the corresponding limiting units on the outer walls of the two connecting strips, the detection rope is divided into two sections, and a tension sensor is connected between the two sections of the detection rope; the connecting strips are installed at the two ends of the tunnel, the limiting units are installed on the connecting strips, the detecting rope is connected between the limiting units on the two connecting strips, the detecting rope makes contact with the inner wall of the tunnel and is tightened, the tension sensor is installed on the detecting rope, and therefore when the inner wall of the tunnel deforms, the detecting rope can be jacked to move, and the detecting rope can be detected. The tunnel inner wall deformation detection device is simple in overall structure, convenient to detect tunnel deformation, high in adaptability and convenient to popularize and use.

Description

Technical Field

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

[0002] Tunnels are advanced transportation facilities used by roads and railways when they pass through special terrains such as mountains and riverbeds. Their emergence solves the problem of vehicles having to take detours due to the obstruction of mountains and rivers during transportation. During the use of tunnels, the passage of vehicles or geological movements will inevitably cause stress to certain parts of the tunnel, causing it to deform. If these deformed parts are not handled in time, they will cause serious damage to the tunnel structure over the years, causing it to break or even collapse. Therefore, detection equipment is needed to inspect the tunnel to avoid safety accidents caused by deformation.

[0003] Prior art, such as the patent with publication number CN218716998U, discloses an automatic detection device for tunnel surrounding rock deformation, including a tunnel bottom surface and a concrete layer arranged on the tunnel bottom surface, and also includes a detection mechanism symmetrically arranged on the surface of the concrete layer, each of the detection mechanisms includes a transmission component, a scraper component, an electrical component and a blocking component, the transmission component is arranged inside the concrete layer, the scraper component is arranged on the surface of the transmission component, the electrical component is arranged at the end of the transmission component, and the blocking component is arranged in front of the concrete layer; it is conducive to automatically detecting whether the concrete layer in the tunnel is deformed, reminding people not to enter the tunnel when the concrete layer in the tunnel is deformed, and blocking vehicles entering the tunnel, further avoiding the problem of safety hazards when vehicles enter the tunnel.

[0004] The existing technology still has shortcomings:

[0005] The above-mentioned prior art uses a detection mechanism to detect the deformation of the tunnel, but the overall structure is too complicated, the equipment is large, the detection process is cumbersome, and the adaptability is poor, which is not conducive to popularization and use. Therefore, a deformation detection device for tunnels is proposed. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a deformation detection device for a tunnel, which adopts a simple structure to realize deformation detection inside the tunnel, has low manufacturing cost, and is convenient for detecting deformation of the tunnel.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deformation detection device for a tunnel, comprising a connecting strip installed on the outer walls at both ends of the tunnel, the outer shape of the connecting strip is the same as the shape of the inner wall at the upper end of the tunnel, the outer wall of the connecting strip is fixedly connected with a plurality of limit units, a detection rope is connected between the limit units corresponding to the outer walls of the two connecting strips, the detection rope is divided into two sections, a tension sensor is connected between the two sections of the detection rope, the two sections of the detection rope are respectively connected to the limit units on the side walls of the two connecting strips, the limit units restrict the tension of the detection rope, and the detection rope fits against the inner wall of the tunnel.

[0008] Preferably, the limiting unit comprises a reeling rod fixedly connected to the outer wall of the connecting strip, the end of the detection rope is wound around the outer wall of the reeling rod, and a clamp for clamping the detection rope is installed on the outer wall of the reeling rod.

[0009] Preferably, the outer wall of the connecting strip is provided with a plurality of limiting openings corresponding to the winding rod, and the detection rope is placed in the limiting openings.

[0010] Preferably, the reel is in a dumbbell shape, and the dumbbell-shaped reel restricts the detection rope wound around its outer wall from sliding out.

[0011] Preferably, an end portion of the limiting opening close to the winding rod coincides with the end face of the tunnel.

[0012] Preferably, auxiliary ropes are fixedly connected between the outer walls of the multiple detection ropes, the number of the auxiliary ropes is multiple, and the multiple auxiliary ropes are evenly distributed and connected to the multiple detection ropes.

[0013] Preferably, the detection rope and the auxiliary rope are made of the same material, and both the detection rope and the auxiliary rope are elastic ropes.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model installs connecting strips at both ends of the tunnel, and limit units are installed on the connecting strips. A detection rope is connected between the limit units on the two connecting strips, and the detection rope is brought into contact with and tightened against the inner wall of the tunnel. A tension sensor is installed on the detection rope. When the inner wall of the tunnel is deformed, the detection rope is pushed, and the detection rope pulls the tension sensor, thereby realizing real-time detection of deformation of the inner wall of the tunnel. The overall structure is simple, and the deformation detection of the tunnel is convenient. The utility model has strong adaptability and is convenient for promotion and use.

[0016] 2. The utility model provides a limit opening on the connecting strip, and the detection rope is located in the limit opening. The limit opening restricts the detection rope so that the detection rope cannot deviate, thereby ensuring the stability of the detection.

[0017] 3. In the utility model, auxiliary ropes are connected between multiple detection ropes, and the auxiliary ropes cooperate with the detection ropes to further improve the accuracy of tunnel inner wall detection.

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the position distribution of the detection rope, auxiliary rope and connecting strip of the utility model;

[0021] Figure 3 It is a schematic diagram of the explosion structure of the limiting unit of the utility model;

[0022] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0023] Figure 5 This is a schematic diagram of the direction structure of the detection rope of the utility model;

[0024] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0025] Figure 7 This is a schematic diagram of the position structure of the limit opening of the utility model;

[0026] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0027] Fig. 9 It is a structural schematic diagram of the winding rod of the utility model.

[0028] In the figure: 1. connecting strip; 2. limiting unit; 21. winding rod; 22. clamp; 3. detection rope; 4. auxiliary rope; 5. limiting port; 6. tension sensor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this technical field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-9The deformation detection device for a tunnel of this embodiment includes a connecting bar 1 installed on the outer walls of both ends of the tunnel. The outer shape of the connecting bar 1 is the same as the shape of the inner wall of the upper end of the tunnel. The outer wall of the connecting bar 1 is fixedly connected with a plurality of limiting units 2. A detection rope 3 is connected between the limiting units 2 corresponding to the outer walls of the two connecting bars 1. The detection rope 3 is divided into two sections. A tension sensor 6 is connected between the two sections of the detection rope 3. The two sections of the detection rope 3 are respectively connected to the limiting units 2 on the side walls of the two connecting bars 1. The limiting units 2 tighten the detection rope 3, and the detection rope 3 fits the inner wall of the tunnel.

[0031] like Figure 1-8 As shown, the structure of the tunnel deformation detection device in the utility model is similar to the structure of the existing tunnel deformation detection device, such as the prior art CN218716998U. The main improvement of the utility model is that a simple structure is used to realize deformation detection inside the tunnel, the manufacturing cost is low, and it is convenient to detect the deformation of the tunnel; when it is necessary to detect the deformation of the tunnel, the utility model installs connecting strips 1 on the outer walls of both ends of the tunnel, connects the detection rope 3 between the limit units 2 on the outer walls of the two connecting strips 1, and tightens the detection rope 3 to the inner wall of the tunnel. When the inner wall of the tunnel is deformed, the deformation part squeezes the detection rope 3 and pushes it outward, so that the detection rope 3 pulls the tension sensor 6, and the tension sensor 6 sends the tension value to the outside for early warning, thereby realizing real-time detection of the deformation of the inner wall of the tunnel. The overall structure is simple, the deformation detection of the tunnel is convenient, the adaptability is strong, and it is convenient to promote and use.

[0032] like Figure 4 , 8 As shown, the limiting unit 2 includes a winding rod 21 fixedly connected to the outer wall of the connecting strip 1, the end of the detection rope 3 is wound around the outer wall of the winding rod 21, and the outer wall of the winding rod 21 is installed with a clamp 22 for clamping the detection rope 3; when installing the detection rope 3, first tighten it to the inner wall of the tunnel, and then wind its two ends around the outer walls of two corresponding winding rods 21 respectively, and then use the clamp 22 to clamp the detection rope 3 wound around the outer wall of the winding rod 21, so as to fix the detection rope 3, so as to facilitate the adjustment, tightening and installation of the detection rope 3.

[0033] like Figure 4 , 6 As shown in Figures 8, the outer wall of the connecting strip 1 is provided with a plurality of limit openings 5 ​​corresponding to the winding rod 21, and the detection rope 3 is placed in the limit openings 5; the detection rope 3 is sleeved in the limit openings 5, and the limit openings 5 ​​restrict the detection rope 3 so that it will not slide on the inner wall of the tunnel, thereby facilitating the installation of the detection rope 3 and improving the accuracy of the detection of the inner wall of the tunnel by the detection rope 3.

[0034] like Figure 4 , 8As shown in Figures 9, the reel 21 is in a dumbbell shape, and the dumbbell-shaped reel 21 limits the detection rope 3 wrapped around its outer wall from slipping out; the dumbbell-shaped reel 21 can limit the detection rope 3 wrapped around its outer wall, ensuring that the detection rope 3 will not slip out, and is convenient for fixing the detection rope 3.

[0035] like Figure 8 As shown, the end portion of the limit opening 5 close to the winding rod 21 coincides with the end face of the tunnel; after the detection rope 3 is put inside the limit opening 5 that coincides with the end face of the tunnel, the detection rope 3 is tightened. At this time, the detection rope 3 can be automatically tightened and fit with the inner wall of the tunnel, which is convenient for the installation of the detection rope 3.

[0036] like Figure 2 , 3 As shown in Figure 5, auxiliary ropes 4 are fixedly connected between the outer walls of the multiple detection ropes 3. The number of auxiliary ropes 4 is multiple, and the multiple auxiliary ropes 4 are evenly distributed and connected to the multiple detection ropes 3; the auxiliary ropes 4 connect the multiple detection ropes 3, and the auxiliary ropes 4 assist the detection ropes 3 in detecting the deformation of the inner wall of the tunnel, thereby improving the detection range.

[0037] like Figure 2 , 3 As shown in , 5, the detection rope 3 and the auxiliary rope 4 are made of the same material, and both the detection rope 3 and the auxiliary rope 4 are elastic ropes; the detection rope 3 and the auxiliary rope 4 are elastic, which can prevent the deformation of the tunnel from pushing the detection rope 3 and the auxiliary rope 4 outward and causing the detection rope 3 and the auxiliary rope 4 to break, thereby improving adaptability.

[0038] The implementation steps in this embodiment are as follows: when it is necessary to detect the deformation of the tunnel, a connecting strip 1 is installed on the outer walls at both ends of the tunnel, the detection rope 3 is put into the limit opening 5, and the detection rope 3 is fitted with the inner wall of the tunnel, and then the two ends of the detection rope 3 are respectively wrapped around the outer walls of the two corresponding winding rods 21, and then the clamp 22 is used to clamp the detection rope 3 wrapped around the outer wall of the winding rod 21, and then the detection rope 3 is fixed, and the detection rope 3 is tightened against the inner wall of the tunnel. When the inner wall of the tunnel is deformed, the deformation part squeezes the detection rope 3 and pushes it outward, so that the detection rope 3 pulls the tension sensor 6, and the tension sensor 6 sends the tension value to the outside for early warning, thereby realizing real-time detection of the deformation of the inner wall of the tunnel.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A deformation detection device for a tunnel, characterized in that: The invention comprises a connecting strip (1) installed on the outer walls of both ends of a tunnel, the outer shape of the connecting strip (1) is the same as the shape of the inner wall of the upper end of the tunnel, a plurality of limiting units (2) are fixedly connected to the outer wall of the connecting strip (1), a detection rope (3) is connected between the limiting units (2) corresponding to the outer walls of the two connecting strips (1), the detection rope (3) is divided into two sections, a tension sensor (6) is connected between the two sections of the detection rope (3), the two sections of the detection rope (3) are respectively connected to the limiting units (2) on the side walls of the two connecting strips (1), the limiting units (2) tighten and limit the detection rope (3), and the detection rope (3) is in contact with the inner wall of the tunnel.

2. A tunnel deformation detection device according to claim 1, characterized in that: The limiting unit (2) comprises a reeling rod (21) fixedly connected to the outer wall of the connecting strip (1); the end of the detection rope (3) is wound around the outer wall of the reeling rod (21); and a clamp (22) for clamping the detection rope (3) is installed on the outer wall of the reeling rod (21).

3. A tunnel deformation detection device according to claim 2, characterized in that: The outer wall of the connecting strip (1) is provided with a plurality of limiting openings (5) corresponding to the winding rod (21), and the detection rope (3) is placed in the limiting openings (5).

4. A tunnel deformation detection device according to claim 2, characterized in that: The reeling rod (21) is in a dumbbell shape, and the dumbbell-shaped reeling rod (21) restricts the detection rope (3) wound around its outer wall from sliding out.

5. The deformation detection device for tunnel according to claim 3, characterized in that: An end portion of the limiting opening (5) close to the winding rod (21) coincides with the end face of the tunnel.

6. A tunnel deformation detection device according to claim 1, characterized in that: Auxiliary ropes (4) are fixedly connected between the outer walls of the plurality of detection ropes (3); the number of the auxiliary ropes (4) is plural, and the plurality of auxiliary ropes (4) are evenly distributed and connected to the plurality of detection ropes (3).

7. The tunnel deformation detection device according to claim 1, characterized in that: The detection rope (3) and the auxiliary rope (4) are made of the same material, and both the detection rope (3) and the auxiliary rope (4) are elastic ropes.

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