Tunnel lining water leakage detection device

By combining the ground-penetrating radar main unit with the cleaning components, the problem of accuracy in detecting tunnel water leakage has been solved, detection efficiency and tunnel structural stability have been improved, and the service life of the tunnel has been extended.

CN223955806UActive Publication Date: 2026-02-27HANGZHOU PUBLIC WORKS SECTION OF CHINA RAILWAY SHANGHAI BUREAU GRP CO LTD
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Patent Information

Application Number
CN202520072756.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-02-27
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

In existing technologies, tunnel leakage detection mainly relies on manual inspection, which makes it difficult to accurately identify and locate the locations of tunnel lining voids, water accumulation, and leakage. This results in low accuracy in drilling pressure relief holes, damages the stress of the tunnel lining, and shortens the tunnel's service life.

Method used

The system employs a ground-penetrating radar main unit combined with a cleaning assembly, including drive wheels, a cleaning cylinder, and a motor-driven bucket, for detecting debris inside tunnels and improving the mobile stability and detection accuracy of the ground-penetrating radar main unit.

Benefits of technology

It enables precise identification and location of voids, water accumulation, and water leakage in the tunnel lining, reducing damage to the tunnel structure and extending the tunnel's service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a tunnel lining water leakage detection device applied to the field of tunnel engineering, which comprises a ground penetrating radar host, four corners of the lower end of the ground penetrating radar host are fixedly connected with driving wheels, the front end of the ground penetrating radar host is fixedly connected with a cleaning assembly, and the cleaning assembly comprises a mounting strip fixedly connected to the front end of the ground penetrating radar host. A mounting groove is formed in the right end of the mounting strip, a positioning strip is arranged in the mounting groove, and a positioning rod is fixedly connected to the middle of the front end of the positioning strip. The ground penetrating radar host replaces manual inspection to detect the interior of a tunnel, and in the inspection process, the sweeping assembly sweeps the ground in front of the ground penetrating radar host; therefore, the influence of ground broken stones on advancing of the ground penetrating radar host is effectively avoided, the ground penetrating radar host can efficiently complete detection of the interior of the tunnel, the positions of tunnel lining cavities, accumulated water and water leakage are accurately recognized and positioned, and workers can conveniently maintain the tunnel.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a water leakage detection device, in particular to a tunnel lining water leakage detection device applied to the field of tunnel engineering. BACKGROUND

[0002] With the rapid development of tunnel engineering in China, tunnel disease problems gradually become the focus of research, especially in the complex and changeable geological conditions area, such as Zhejiang, when the tunnel passes through different mountains, the complexity of engineering geology, climate and hydrogeological conditions, as well as design, construction and operation factors, make the early built tunnel prone to diseases such as arch cracking, water leakage and surrounding rock large deformation, which seriously threatens the structural health and operation safety of the tunnel.

[0003] At present, the detection of tunnel diseases mainly relies on artificial patrol, after the position of tunnel water leakage is determined by artificial naked eye, the effect of water drainage is achieved through a large pressure reduction hole, but the accuracy of the punching position of naked eye judgment is low, which leads to the increase of the number of punching, thereby damaging the overall stress of the tunnel lining, which seriously threatens the structural health and operation safety of the tunnel. SUMMARY

[0004] In view of the above prior art, the technical problem to be solved by the utility model is that the detection of tunnel water leakage mainly relies on artificial patrol at present, but artificial patrol is difficult to accurately identify and locate the position of tunnel lining cavity, water accumulation and water leakage, thereby the accuracy of the punching position of the pressure reduction hole is low, which damages the overall stress of the tunnel lining, and further shortens the service life of the tunnel.

[0005] In order to solve the above problems, the utility model provides a tunnel lining water leakage detection device, which comprises a ground penetrating radar host, driving wheels are fixedly connected to the lower end of the ground penetrating radar host, a cleaning assembly is fixedly connected to the front end of the ground penetrating radar host, the cleaning assembly comprises a mounting strip fixedly connected to the front end of the ground penetrating radar host, a mounting groove is opened in the right end of the mounting strip, a positioning strip is arranged in the mounting groove, a positioning rod is fixedly connected to the front end of the positioning strip, a shovel is fixedly sleeved on the front end of the positioning rod, two mounting rods are rotatably connected to the front end of the positioning strip, the front end of the mounting rod rotatably penetrates the shovel, the positioning rod is located between the two mounting rods, a cleaning cylinder is fixedly sleeved on the outer surface of the mounting rod, a belt pulley set is jointly sleeved between the other mounting rod and the positioning rod, a transmission gear is sleeved on the surface of the other mounting rod and the positioning rod, a baffle is fixedly connected to the inner bottom wall of the shovel, a motor is fixedly connected to the front end of the baffle, and the output end of the motor movably penetrates the baffle and is fixedly connected with one of the mounting rods.

[0006] In the tunnel lining leakage detection device, the ground penetrating radar host machine is used to replace manual inspection to detect the inside of the tunnel, and in the inspection process, the cleaning assembly cleans the ground in front of the ground penetrating radar host machine, so that the influence of the ground gravel on the advancement of the ground penetrating radar host machine is effectively avoided, the ground penetrating radar host machine can efficiently complete the detection of the inside of the tunnel, the positions of the tunnel lining cavities, water accumulation and leakage are accurately identified and located, and the tunnel can be conveniently maintained by the staff.

[0007] As a further improvement of the present application, the belt pulley set comprises two rollers respectively sleeved on the outer surfaces of the mounting rod and the positioning rod, the mounting rod and the corresponding roller are fixedly connected, the positioning rod and the corresponding roller are rotatably connected, and the two rollers are jointly sleeved with a transmission belt.

[0008] As a further improvement of the present application, the transmission gear is fixedly connected with the other mounting rod, the transmission gear is rotatably connected with the positioning rod, the two transmission gears are engaged, and the roller on the positioning rod is fixedly connected with the transmission gear.

[0009] As a further improvement of the present application, the upper end of the mounting strip is provided with two insertion rods, the lower ends of the insertion rods are sequentially movably penetrated through the mounting strip and the positioning strip, the upper ends of the two insertion rods are fixedly connected with a pull plate, and the upper end of the pull plate is fixedly connected with a handle.

[0010] As a further improvement of the present application, the positioning strip and the mounting groove are both T-shaped and completely matched.

[0011] As a further improvement of the present application, the right end of the ground penetrating radar host machine is fixedly connected with a displacement sensor, and the ground penetrating radar host machine, the driving wheel, the motor and the displacement sensor are all signal-connected with an external controller.

[0012] As a further improvement of the present application, the right end of the ground penetrating radar host machine is fixedly connected with a displacement sensor, and the ground penetrating radar host machine, the driving wheel, the motor and the displacement sensor are all signal-connected with an external controller. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment of the present application;

[0014] Figure 2 It is a schematic diagram of the mounting strip structure of the first embodiment of the present application;

[0015] Figure 3 Structure diagram of the cleaning assembly of the first embodiment of the present application;

[0016] Figure 4 Structure diagram of the positioning strip of the first embodiment of the present application;

[0017] Figure 5 Structure diagram of the cleaning barrel of the first embodiment of the present application;

[0018] Figure 6 Structure diagram of the second embodiment of the present application.

[0019] Explanation of the reference numerals in the figures:

[0020] 1 ground penetrating radar main machine, 2 driving wheel, 3 mounting strip, 4 mounting slot, 5 positioning strip, 6 positioning rod, 7 shovel, 8 mounting rod, 9 cleaning barrel, 10 pulley set, 101 roller, 102 transmission belt, 11 transmission gear, 12 baffle, 13 motor, 14 insertion rod, 15 pull plate, 16 displacement sensor. DETAILED DESCRIPTION

[0021] The two embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0022] First embodiment:

[0023] Figure 1 , Figure 2 and Figure 3The utility model shows: a kind of tunnel lining leakage detection device, including ground penetrating radar host 1, and those skilled in the art can select suitable model ground penetrating radar host 1 according to actual needs, for example: DZLD4000-400MHz, the lower end of ground penetrating radar host 1 is fixedly connected with driving wheel 2, and those skilled in the art can select suitable model driving wheel 2 according to actual needs, for example: RV280E, driving wheel 2 can drive ground penetrating radar host 1 to move, and the front end of ground penetrating radar host 1 is fixedly connected with cleaning assembly, and cleaning assembly includes mounting strip 3 fixedly connected at the front end of ground penetrating radar host 1, mounting groove 4 is excavated in the right end of mounting strip 3, positioning strip 5 is equipped in mounting groove 4, positioning strip 5 and mounting groove 4 are all T-shaped, and positioning strip 5 and mounting groove 4 are completely matched, when using cleaning assembly, positioning strip 5 can be inserted into mounting groove 4, to complete the installation of cleaning assembly, when ground penetrating radar host 1 works on tunnel wall, cleaning assembly can be removed, so that the movement of ground penetrating radar host 1 is not hindered, and the front end of positioning strip 5 is fixedly connected with positioning rod 6, positioning rod 6 is fixedly sleeved with shovel 7 at the front end, shovel 7 can shovel small stones on the road surface in front of ground penetrating radar host 1, to effectively improve the stability during the movement of ground penetrating radar host 1, to effectively improve the accuracy of the detection of ground penetrating radar host 1, and positioning rod 6 can fix positioning strip 5 with shovel 7.

[0024] Figure 3 And Figure 4 The utility model shows: the front end of positioning strip 5 is also rotatably connected with two mounting rods 8, the front end of mounting rod 8 is rotatably penetrated through shovel 7, positioning rod 6 is located between two mounting rods 8, and cleaning barrel 9 is fixedly sleeved on the outer surface of mounting rod 8, one of mounting rod 8 and positioning rod 6 are jointly sleeved with belt pulley group 10, the surface of the other mounting rod 8 and positioning rod 6 is sleeved with transmission gear 11, the inner bottom wall of shovel 7 is fixedly connected with baffle 12, the front end of baffle 12 is fixedly connected with motor 13, and those skilled in the art can select suitable model motor 13 according to actual needs, for example: Y2-63M1-2-0.18KW, the output end of motor 13 is movably penetrated through baffle 12 and is fixedly connected with one of mounting rod 8, the upper end of mounting strip 3 is provided with two inserting rods 14, the lower end of inserting rod 14 is movably penetrated through mounting strip 3 and positioning strip 5 in sequence, the upper end of two inserting rods 14 is fixedly connected with pull plate 15, and the upper end of pull plate 15 is fixedly connected with handle, after positioning strip 5 is inserted into mounting strip 3, inserting rod 14 is inserted into mounting strip 3 and positioning strip 5, to limit and fix mounting strip 3 and positioning strip 5, effectively avoid that positioning strip 5 shakes and falls during the advance of ground penetrating radar host 1.

[0025] Figure 5The belt wheel set 10 comprises two rollers 101 sleeved on the outer surfaces of the mounting rods 8 and the positioning rods 6 respectively, the mounting rods 8 and the corresponding rollers 101 are fixedly connected, the positioning rods 6 and the corresponding rollers 101 are rotatably connected, the two rollers 101 are jointly sleeved with a transmission belt 102, the transmission gears 11 are fixedly connected with the other mounting rods 8, the transmission gears 11 are rotatably connected with the positioning rods 6, the two transmission gears 11 are engaged, and the roller 101 located on the positioning rod 6 and the transmission gear 11 are fixedly connected, when the motor 13 drives one mounting rod 8 to rotate, the roller 101 or the transmission gear 11 rotates, when the roller 101 rotates, the transmission belt 102 is driven to rotate, so that the roller 101 located on the positioning rod 6 also rotates, at this time, the transmission gear 11 connected with the roller 101 rotates, drives the transmission gear 11 on the other mounting rod 8 to rotate, thereby drives the two cleaning barrels 9 to rotate in opposite directions, when the transmission gear 11 rotates, the other transmission gear 11 engaged with the transmission gear 11 rotates, thereby sequentially drives the roller 101 on the positioning rod 6, the transmission belt 102 and the other roller 101 to rotate, so that the two cleaning barrels 9 rotate in opposite directions, wherein the left cleaning barrel 9 rotates in the clockwise direction, and the right cleaning barrel 9 rotates in the counterclockwise direction, thereby sweeping the dust and impurities in front of the ground penetrating radar host 1 to the left and right sides, effectively avoiding that the small stones in the tunnel hinder the movement of the ground penetrating radar host 1, thereby effectively improving the stability of the ground penetrating radar host 1 when moving.

[0026] When detecting the tunnel, the positioning strip 5 can be inserted into the mounting strip 3, the two insertion rods 14 are inserted to install the cleaning assembly, then the ground penetrating radar host 1 is placed in the tunnel, the driving wheel 2 is started to drive the ground penetrating radar host 1 to move, in the moving process, the shovel 7 can shovel the small stones and other sundries on the ground in front of the ground penetrating radar host 1, at the same time, the motor 13 can be started to drive one mounting rod 8 to rotate, thereby driving the roller 101 or the transmission gear 11 to rotate, when one roller 101 rotates, the roller 101 on the positioning rod 6 is driven to rotate through the transmission belt 102, so that the transmission gear 11 connected with the roller 101 rotates, thereby making the transmission gear 11 on the other mounting rod 8 rotate, so that the two mounting rods 8 move in opposite directions, when the transmission gear 11 rotates, the transmission gear 11 on the positioning rod 8 also rotates, so that the roller 101 on the positioning rod 8 rotates, the other roller 101 is driven to rotate through the transmission belt 102, thereby making the two mounting rods 8 move in opposite directions, thereby driving the two cleaning barrels 9 to clean the ground, thereby effectively avoiding that the sundries hinder the advance of the ground penetrating radar host 1, effectively improving the stability of the ground penetrating radar host 1 when advancing, so that the ground penetrating radar host 1 can efficiently complete the detection of the tunnel, accurately identify and locate the positions of the tunnel lining cavities, accumulated water and seepage water, and facilitate the staff to maintain the tunnel.

[0027] The second embodiment is as follows:

[0028] The second embodiment is as follows:

[0029] Figure 6 The right end of the ground penetrating radar host 1 is fixedly connected with the displacement sensor 16, and those skilled in the art can select a suitable type of displacement sensor 16 according to actual needs, for example, LTP150. The ground penetrating radar host 1, the driving wheel 2, the motor 13 and the displacement sensor 16 are all connected with an external controller signal.

[0030] When the ground penetrating radar host 1 is used to detect a tunnel, the position and the moving distance of the ground penetrating radar host 1 can be monitored in real time through the displacement sensor 16, so that the accuracy of tunnel detection is effectively improved.

[0031] In combination with the current actual demand, the above-mentioned embodiments adopted by the present application are not limited to this, and various changes made within the knowledge range of those skilled in the art without departing from the concept of the present application still fall within the protection range of the present application.

Claims

1. A device for detecting water leakage in a tunnel lining, comprising a ground penetrating radar main unit (1), characterized in that: The lower end of the ground penetrating radar host (1) is fixedly connected with driving wheels (2), the front end of the ground penetrating radar host (1) is fixedly connected with a cleaning assembly, the cleaning assembly comprises a mounting strip (3) fixedly connected to the front end of the ground penetrating radar host (1), the right end of the mounting strip (3) is provided with a mounting groove (4), the mounting groove (4) is provided with a positioning strip (5), the front end of the positioning strip (5) is fixedly connected with a positioning rod (6), the front end of the positioning rod (6) is fixedly provided with a shovel (7). The front end of the positioning strip (5) is also rotatably connected with two mounting rods (8), the front end of the mounting rod (8) is rotatably penetrated through the shovel (7), the positioning rod (6) is located between the two mounting rods (8), the outer surface of the mounting rod (8) is fixedly provided with a cleaning cylinder (9), one of the mounting rods (8) and the positioning rod (6) are jointly provided with a belt pulley set (10), the surface of the other mounting rod (8) and the positioning rod (6) are provided with a transmission gear (11), the inner bottom wall of the shovel (7) is fixedly connected with a baffle (12), the front end of the baffle (12) is fixedly connected with a motor (13), the output end of the motor (13) is movably penetrated through the baffle (12) and fixedly connected with one of the mounting rods (8).

2. A tunnel lining water leakage detection apparatus according to claim 1, characterised in that: The belt pulley set (10) comprises two rollers (101) provided on the outer surfaces of the mounting rod (8) and the positioning rod (6), the mounting rod (8) and the corresponding roller (101) are fixedly connected, the positioning rod (6) and the corresponding roller (101) are rotatably connected, and the two rollers (101) are jointly provided with a transmission belt (102).

3. A tunnel lining water leakage detection apparatus according to claim 2, characterised in that: The transmission gear (11) is fixedly connected with the other mounting rod (8), the transmission gear (11) is rotatably connected with the positioning rod (6), the two transmission gears (11) are engaged, and the roller (101) and the transmission gear (11) located on the positioning rod (6) are fixedly connected.

4. The tunnel lining water leakage detection apparatus according to claim 1, characterized in that: The upper end of the mounting strip (3) is provided with two insertion rods (14), the lower end of the insertion rod (14) is movably penetrated through the mounting strip (3) and the positioning strip (5) in sequence, the upper ends of the two insertion rods (14) are jointly fixedly connected with a pull plate (15), and the upper end of the pull plate (15) is fixedly connected with a handle.

5. A tunnel lining water leakage detection apparatus according to claim 4, characterised in that: The positioning strip (5) and the mounting groove (4) are both T-shaped and completely matched.

6. A tunnel lining water leakage detection apparatus according to claim 1, characterized in that: The right end of the ground penetrating radar host (1) is fixedly connected with a displacement sensor (16), and the ground penetrating radar host (1), the driving wheels (2), the motor (13) and the displacement sensor (16) are signal connected with an external controller.