A tunnel joint leakage detection device

Abstract

The present invention relates to a tunnel joint plugging detection device, which belongs to the field of tunnel engineering technology, and includes a first supporting steel frame and a second supporting steel frame. The first supporting steel frame and the second supporting steel frame are both assembled by splicing four quarter-circular arc plates, and the middle parts of the first supporting steel frame and the second supporting steel frame are sleeved with a walking mechanism, and the upper ends of the walking mechanisms are connected with a detection mechanism, and the walking mechanism rotates and walks along the inside of the first supporting steel frame and the second supporting steel frame. The walking mechanism and the retractable detection mechanism are supported by installing the first supporting steel frame and the second supporting steel frame, and the outer side surfaces of the first supporting steel frame and the second supporting steel frame are connected with telescopic rods and rollers at equal intervals, and the device is fixed on the inner wall of the tunnel, and can walk inside the tunnel, and the setting of the telescopic rod is convenient for supporting the inner walls of tunnels with different circumferences, so as to ensure the stability of the device during use.

Description

Technical Field

[0001] The invention relates to a tunnel joint leakage detection device, belonging to the technical field of tunnel engineering. Background Art

[0002] The shield section is an underground tunnel made of precast concrete segments spliced ​​into a ring shape and supported by surrounding rocks. The current tunnel construction process mostly adopts the segmented casting method. The shield tunnel is generally long and requires a large number of segments. Therefore, preventing water leakage in the tunnel is the primary task to ensure the quality of the shield tunnel. The joints between adjacent segments are the most direct part for water leakage. A joint is often set at the connection between each section to meet the requirements of concrete deformation. However, the existence of the joint poses an important hidden danger to the leakage problem in the tunnel.

[0003] The waterproofing of joints is the weakest and most important, so the focus of shield tunnel waterproofing is the waterproofing of the joints between segments and between rings. Most of the shield tunnel segment joint leakage detection devices fix the steel mold on the connection seam, compress the sealing gasket under the action of the bolt preload, and then add water to the mold to apply water pressure. When it leaks, the water pressure value is recorded. However, the traditional tunnel joint leakage detection device has a simple structure and a single function. Due to the huge tunnel project, the staff used to need to regularly inspect the tunnel to see if there is leakage or damage at the joints. Therefore, a lot of manpower and material resources are needed to enter the tunnel for inspection and leakage. If a leak occurs at the joint, it needs to be completed by multiple staff members working together. This not only consumes a lot of manpower, material and financial resources, but also wastes a lot of time of the staff, and it is impossible to accurately plug the leak at the location.

[0004] Therefore, we make improvements to this and propose a tunnel joint leakage detection device. Summary of the invention

[0005] (I) The technical problem to be solved by the present invention is that it is impossible to conveniently, quickly and accurately detect water leakage in tunnel joints, and it is impossible to record the specific location of the water leakage. The assembly and use process of the device is cumbersome and complicated, and it is inconvenient to move the device.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of the invention, the present invention provides a tunnel joint leakage detection device, including a first supporting steel frame and a second supporting steel frame, the first supporting steel frame and the second supporting steel frame are both assembled by splicing four quarter-circular arc plates, and the middle parts of the first supporting steel frame and the second supporting steel frame are sleeved with a walking mechanism, the upper end of the walking mechanism is connected with a detection mechanism, and the walking mechanism rotates and walks along the inside of the first supporting steel frame and the second supporting steel frame.

[0008] Among them, the first supporting steel frame includes an arc-shaped steel plate, which is a 90-degree arc-shaped support rod, and first connecting plates are installed on both sides of one end of the arc-shaped steel plate, and second connecting plates adapted to the first connecting plates are installed on both sides of the other end of the arc-shaped steel plate, and the first connecting plate and the second connecting plate are fixed by pins.

[0009] Among them, the outer side of the arc-shaped steel plate is provided with a mounting groove, the inside of the mounting groove is fixedly connected with a telescopic rod, the bottom end of the telescopic rod is installed with a roller, the inner side of the arc-shaped steel plate is installed with a guide rail, and the inner side of the guide rail is provided with convex teeth.

[0010] Among them, the walking mechanism includes a shell, both sides of the shell are provided with slide grooves, and the slide grooves are sleeved on the outside of the guide rail, and a walking motor is installed on the slide groove, the output end of the walking motor is connected with a gear, and the gear is meshed with the convex teeth at the bottom of the guide rail, and the upper end of the shell is provided with a telescopic groove, the middle part of the telescopic groove is fixedly connected with an alarm device, and the upper end of the alarm device is connected to the detection mechanism.

[0011] Wherein, the detection mechanism includes a pressure box, a water pressure box is provided inside the pressure box, and a sealing strip is installed at the upper edge of the pressure box, and the bottom of the pressure box is connected to a support rod and a water inlet pipe, and the support rod and the water inlet pipe both pass through the outer shell and are connected to the bottom of the outer shell, and the bottom of the water inlet pipe is connected to a water tank, the middle of the water tank is connected to a water injection pipe, and a gear hydraulic pump is installed inside the water tank.

[0012] Wherein, a pressure gauge is installed on the outer side of the middle part of the pressure box, and the pressure gauge detects the pressure inside the pressure box.

[0013] Wherein, an alarm device is installed on the outer side of the middle part of the shell, and an alarm flashing light and an alarm horn are installed on the alarm device.

[0014] The first supporting steel frame and the second supporting steel frame are structures with the same diameter and thickness, and the outer sides of the first supporting steel frame and the second supporting steel frame are both provided with scales.

[0015] There are six travel motors and six gears, which are symmetrically installed at equal intervals on both sides of the housing and simultaneously perform synchronous meshing rotation on the bottom ends of the first supporting steel frame and the second supporting steel frame.

[0016] Wherein, the gear hydraulic pump is a gear pump, and the outer end of the gear pump is connected to a driving motor.

[0017] (III) Beneficial effects

[0018] The tunnel joint leakage detection device provided by the present invention has the following beneficial effects:

[0019] 1. The walking mechanism and the retractable detection mechanism are supported by installing the first supporting steel frame and the second supporting steel frame, and the first supporting steel frame and the second supporting steel frame are both connected by four sections of ninety-degree arc splicing, and during the splicing process of the first supporting steel frame and the second supporting steel frame, the two ends of the connection are quickly pinned to use the device, and the outer side surfaces of the first supporting steel frame and the second supporting steel frame are connected with telescopic rods and rollers at equal intervals. The first supporting steel frame and the second supporting steel frame are fixed to the inner wall of the tunnel through the telescopic rods and rollers, which is convenient for the device to move inside the tunnel, and the setting of the telescopic rod is convenient for supporting the inner walls of tunnels with different circumferences, thereby ensuring the stability of the device during use.

[0020] 2. By connecting the detection mechanism to the traveling mechanism, and connecting the traveling mechanism and the detection mechanism through an alarm device, it is convenient to drive the pressure box to move up and down on the traveling mechanism through the alarm device, and make the pressure box tightly connected to the inner wall of the tunnel, so as to ensure the sealing and detection accuracy of the pressure box during the detection process, and a sealing strip is installed around the upper end of the pressure box, and the sealing strip is tightly wrapped around the outside of the connection seam of the detection point, the connection seam is sealed, and the water pressure detection is performed on the connection seam, so as to quickly find the leakage point of the connection seam.

[0021] 3. An alarm device is installed on the outside of the shell, and scales are provided on the first supporting steel frame and the second supporting steel frame, which is convenient for alarming and recording the leakage points detected by the detection mechanism during the use of the walking mechanism and the detection mechanism, and is convenient for the use of the device and the repair of leakage after detection, thereby improving the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of a tunnel joint leakage detection device provided in this application;

[0024] Figure 2 A schematic diagram of a first supporting steel frame of a tunnel joint leakage detection device provided in the present application;

[0025] Figure 3 A schematic diagram of the installation of a detection mechanism of a tunnel joint leakage detection device provided in this application;

[0026] Figure 4 A schematic diagram of the connection of the walking mechanism of a tunnel joint leakage detection device provided in this application;

[0027] Figure 5 An exploded schematic diagram of a traveling mechanism of a tunnel joint leakage detection device provided in this application;

[0028] Figure 6 A schematic diagram of an arc-shaped steel plate of a tunnel joint leakage detection device provided in this application.

[0029] In the figure: 1. first supporting steel frame; 11. arc-shaped steel plate; 12. mounting groove; 13. telescopic rod; 14. roller; 15. first connecting plate; 16. second connecting plate; 17. guide rail; 18. scale; 2. second supporting steel frame; 3. walking mechanism; 31. outer shell; 32. slide groove; 33. gear; 34. walking motor; 35. telescopic groove; 36. alarm device; 4. detection mechanism; 41. pressure box; 42. sealing strip; 43. pressure gauge; 44. supporting rod; 45. water inlet pipe; 46. water tank; 47. gear hydraulic pump; 48. water injection pipe. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples of the specification. The following examples are only used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0031] like Figure 1-Figure 6 As shown, this embodiment proposes a tunnel joint leakage detection device, including a first supporting steel frame 1 and a second supporting steel frame 2, the first supporting steel frame 1 and the second supporting steel frame 2 are both assembled by splicing four quarter-circular arc plates, and the middle parts of the first supporting steel frame 1 and the second supporting steel frame 2 are sleeved with a walking mechanism 3, the upper end of the walking mechanism 3 is connected with a detection mechanism 4, and the walking mechanism 3 rotates and walks along the inside of the first supporting steel frame 1 and the second supporting steel frame 2.

[0032] The first supporting steel skeleton 1 includes an arc-shaped steel plate 11, which is a ninety-degree arc-shaped support rod, and a first connecting piece 15 is installed on both sides of one end of the arc-shaped steel plate 11, and a second connecting piece 16 adapted to the first connecting piece 15 is installed on both sides of the other end of the arc-shaped steel plate 11, and the first connecting piece 15 and the second connecting piece 16 are fixed by pins. The setting of the first connecting piece 15 and the second connecting piece 16 is convenient for connecting the four arc-shaped steel plates 11 end to end and fixing them, so as to facilitate the track support for the walking between the walking mechanism 3 and the detection mechanism 4, and to facilitate the installation and disassembly of the device as a whole, and to facilitate the use and transfer of the device.

[0033] An installation groove 12 is provided on the outer side of the arc-shaped steel plate 11, and a telescopic rod 13 is fixedly connected inside the installation groove 12. A roller 14 is installed at the bottom end of the telescopic rod 13. A guide rail 17 is installed on the inner side of the arc-shaped steel plate 11, and the inner side of the guide rail 17 is provided with convex teeth. The telescopic rod 13 and the roller 14 are supported on the outer side of the arc-shaped steel plate 11 and supported by the inner wall of the tunnel, so as to facilitate the support and fixation of the device as a whole. The contraction of the telescopic rod 13 facilitates the support and adjustment of the inner walls of different tunnels, and facilitates the adaptation of the device. The installation of the roller 14 facilitates the pushing of the device to move inside the tunnel, and facilitates the detection and use of different connection seams of the tunnel, thereby avoiding the inconvenience caused by manual handling.

[0034] The walking mechanism 3 includes a shell 31, and slide grooves 32 are provided on both sides of the shell 31. The slide grooves 32 are sleeved on the outside of the guide rail 17, and a walking motor 34 is installed on the slide grooves 32. The output end of the walking motor 34 is connected to a gear 33, and the gear 33 is meshed with the convex teeth at the bottom of the guide rail 17. A telescopic groove 35 is opened at the upper end of the shell 31, and an alarm device 36 is fixedly connected to the middle of the telescopic groove 35, and the upper end of the alarm device 36 is connected to the detection mechanism 4. The walking mechanism 3 is rotatably connected to the first supporting steel frame 1 and the second supporting steel frame 2, and the detection mechanism 4 is supported by the alarm device 36, which is convenient for changing the installation and use height of the detection mechanism 4, so that the detection mechanism 4 is stably and tightly connected to the inner wall of the tunnel, which is convenient for the detection mechanism 4 to detect the connection seam of the tunnel.

[0035] The detection mechanism 4 includes a pressure box 41, a water pressure box is provided inside the pressure box 41, and a sealing strip 42 is installed at the upper edge of the pressure box 41, and a support rod 44 and a water inlet pipe 45 are connected to the bottom of the pressure box 41, and the support rod 44 and the water inlet pipe 45 both penetrate the outer shell 31 and are connected to the bottom of the outer shell 31, and the bottom of the water inlet pipe 45 is connected to a water tank 46, and the middle of the water tank 46 is connected to a water injection pipe 48, and a gear hydraulic pump 47 is installed inside the water tank 46. The pressure box 41 generates internal pressure by injecting liquid through the water tank 46 and the gear hydraulic pump 47, and applies water pressure to the tunnel connection seam at the front end of the pressure box 41 to detect the leakage points at the connection seam, so as to facilitate accurate tunnel detection and use of the tunnel.

[0036] A pressure gauge 43 is installed on the outer side of the middle part of the pressure box 41. The pressure gauge 43 detects the pressure inside the pressure box 41. The pressure box 41, the travel motor 34, the gear hydraulic pump 47 and the alarm device 36 are all electrically connected, and the pressure gauge 43 detects the pressure inside the pressure box 41 in real time. When a pressure change is detected, an electrical signal is connected to the alarm device 36 to make the alarm device 36 sound an alarm, which is convenient for marking and determining the leaking point and facilitating the repair of the leaking point at a later time.

[0037] An alarm device 36 is installed on the outer side of the middle part of the shell 31. The alarm device 36 is equipped with an alarm flashing light and an alarm horn. The light and horn on the alarm device 36 give an alarm at the same time, which is convenient for the device to quickly and accurately mark and record the leakage point during the leakage point detection process, and to facilitate the device to determine the specific location.

[0038] The first supporting steel frame 1 and the second supporting steel frame 2 are structures with the same diameter and thickness, and the outer sides of the first supporting steel frame 1 and the second supporting steel frame 2 are provided with scales 18. The setting of the scale 18 facilitates the positioning of the rotation position of the walking mechanism 3 and the detection mechanism 4 in the device, and facilitates the adjustment and recording of the device position.

[0039] The number of travel motors 34 and gears 33 is six, and the six travel motors 34 and gears 33 are symmetrically installed at equal intervals on both sides of the outer shell 31, and simultaneously perform synchronous meshing rotation on the bottom ends of the first supporting steel frame 1 and the second supporting steel frame 2. The installation of multiple sets of gears 33 and travel motors 34 is convenient for fully driving the travel mechanism 3 and the detection mechanism 4, and using multiple sets of spare sets is convenient for long-term continuous operation of the device.

[0040] The gear hydraulic pump 47 is a gear pump, and the outer end of the gear pump is connected to a driving motor. The gear hydraulic pump 47 drives the liquid inside the water tank 46 to be transported, and avoids damage to the device caused by excessive water pressure inside the pressure box 41.

[0041] Specifically, the first supporting steel frame 1 and the second supporting steel frame 2 are both assembled and connected by four arc-shaped arc steel plates 11, and before the first supporting steel frame 1 and the second supporting steel frame 2 are connected, the arc steel plates 11 are independently overlapped, and the two ends of the arc steel plate 11 are respectively connected to the first connecting piece 15 and the second connecting piece 16, and the inner arc surface of the arc steel plate 11 is installed with a guide rail 17, and the guide rail 17 is provided with convex teeth, and the slide groove 32 is sleeved with the guide rail 17, and the gear 33 and the walking motor 34 are installed inside the slide groove 32, and the gear 33 is driven by the walking motor 34 to rotate and walk on the guide rail 17, thereby driving the walking mechanism 3 and the detection mechanism 4 to move on the first supporting steel frame 1 and the second supporting steel frame 2 until they have traveled a complete circle. , the tunnel is inspected for a complete circle, and a telescopic slot 35 is opened inside the walking mechanism 3, and an alarm device 36 is connected inside the telescopic slot 35. The upper end of the alarm device 36 is connected to the detection mechanism 4, and the support rod 44 and the water inlet pipe 45 at the bottom of the pressure box 41 pass through the walking mechanism 3 and are connected to the water tank 46, driving the pressure box 41 and the water tank 46 to be clamped on the upper and lower sides of the walking mechanism 3, and as the walking mechanism 3 moves on the first supporting steel frame 1 and the second supporting steel frame 2, the gear hydraulic pump 47 and the water inlet pipe 45 are used to inject water into the pressure box 41, and the connection seam is detected for water leakage through the change of the internal pressure of the pressure box 41, and the alarm device 36 installed on the outer shell 31 performs alarm processing on the detection result;When the tunnel joint leakage detection device is in use: the walking mechanism 3 is first connected to a branch of the first supporting steel skeleton 1 and the second supporting steel skeleton 2 through the slide groove 32, and then the four branches of the first supporting steel skeleton 1 and the second supporting steel skeleton 2 are assembled respectively and connected through pins, and the assembled first supporting steel skeleton 1 and the second supporting steel skeleton 2 are placed inside the tunnel, and the telescopic rods 13 installed on the first supporting steel skeleton 1 and the second supporting steel skeleton 2 are extended and retracted, and the rollers 14 are supported on the inner wall of the tunnel, and the first supporting steel skeleton 1 and the second supporting steel skeleton 2 are fixed on both sides of the connection seam inside the tunnel, so that the connection seam is opposite to the middle position of the walking mechanism 3, and then the walking mechanism The detection mechanism 4 on the structure 3 is pressed and pressed against the connection seam of the tunnel by the push of the alarm device 36, and the internal liquid of the water tank 46 is discharged through the gear hydraulic pump 47. The gear hydraulic pump 47 infuses the inside of the pressure box 41, increases the pressure inside the pressure box 41, and detects the water pressure inside the pressure box 41. When a pressure change is detected, the pressure gauge 43 displays the internal water pressure of the pressure box 41, and the alarm device 36 performs synchronous alarm processing, and the staff records the position of the connection seam through the scale 18 on the package surface of the first supporting steel skeleton 1 and the second supporting steel skeleton 2, and then repairs the leaking point. In the detection process of the detection mechanism 4, the walking mechanism 3 and the detection mechanism 4 rotate on the first supporting steel skeleton 1 and the second supporting steel skeleton 2, and the walking mechanism 3 and the detection mechanism 4 perform batch detection of the tunnel connection seam at equal intervals and equal angles until the detection mechanism 4 and the walking mechanism 3 perform a complete plugging detection on the circular tunnel connection seam. After the detection, the tunnel is repaired and used according to the recorded points to ensure the safe operation of the tunnel. ;

[0042] The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A tunnel joint leakage detection device, comprising a first supporting steel frame (1) and a second supporting steel frame (2), characterized in that: The first supporting steel frame (1) and the second supporting steel frame (2) are both assembled by splicing four quarter-circular arc plates, and a walking mechanism (3) is sleeved in the middle of the first supporting steel frame (1) and the second supporting steel frame (2), and the upper end of the walking mechanism (3) is connected to a detection mechanism (4), and the walking mechanism (3) rotates and walks along the inside of the first supporting steel frame (1) and the second supporting steel frame (2); The walking mechanism (3) comprises a housing (31), two sides of the housing (31) are provided with slide grooves (32), the slide grooves (32) are sleeved on the outside of the guide rail (17), and a walking motor (34) is installed on the slide groove (32), the output end of the walking motor (34) is connected to a gear (33), the gear (33) is meshed with a convex tooth at the bottom of the guide rail (17), the upper end of the housing (31) is provided with a telescopic groove (35), the middle part of the telescopic groove (35) is fixedly connected to an alarm device (36), and the upper end of the alarm device (36) is connected to the detection mechanism (4); The detection mechanism (4) comprises a pressure box (41), a water pressure box is provided inside the pressure box (41), a sealing strip (42) is installed at the upper edge of the pressure box (41), a support rod (44) and a water inlet pipe (45) are connected to the bottom of the pressure box (41), the support rod (44) and the water inlet pipe (45) both pass through the outer shell (31) and are connected to the bottom of the outer shell (31), the bottom of the water inlet pipe (45) is connected to a water tank (46), the middle of the water tank (46) is connected to a water injection pipe (48), and a gear hydraulic pump (47) is installed inside the water tank (46).

2. A tunnel joint leakage detection device according to claim 1, characterized in that: The first supporting steel frame (1) comprises an arc-shaped steel plate (11), the arc-shaped steel plate (11) being a 90-degree arc-shaped support rod, and first connecting plates (15) are installed on both sides of one end of the arc-shaped steel plate (11), and second connecting plates (16) adapted to the first connecting plates (15) are installed on both sides of the other end of the arc-shaped steel plate (11), and the first connecting plate (15) and the second connecting plate (16) are fixed by pin connection.

3. A tunnel joint leakage detection device according to claim 2, characterized in that: The outer side surface of the arc-shaped steel plate (11) is provided with a mounting groove (12), a telescopic rod (13) is fixedly connected inside the mounting groove (12), a roller (14) is installed at the bottom end of the telescopic rod (13), and a guide rail (17) is installed on the inner side surface of the arc-shaped steel plate (11), and the inner side surface of the guide rail (17) is provided with convex teeth.

4. A tunnel joint leakage detection device according to claim 1, characterized in that: A pressure gauge (43) is installed on the outer side of the middle portion of the pressure box (41), and the pressure gauge (43) detects the pressure inside the pressure box (41).

5. A tunnel joint leakage detection device according to claim 1, characterized in that: An alarm device (36) is installed on the outer side of the middle portion of the housing (31), and an alarm flashing light and an alarm horn are installed on the alarm device (36).

6. A tunnel joint leakage detection device according to claim 1, characterized in that: The first supporting steel frame (1) and the second supporting steel frame (2) are structures with the same diameter and thickness, and the outer side surfaces of the first supporting steel frame (1) and the second supporting steel frame (2) are both provided with scales (18).

7. A tunnel joint leakage detection device according to claim 1, characterized in that: The number of the travel motors (34) and the number of the gears (33) are both six, and the six travel motors (34) and the gears (33) are symmetrically installed at equal intervals on both sides of the housing (31), and simultaneously perform synchronous meshing rotation on the bottom ends of the first supporting steel frame (1) and the second supporting steel frame (2).

8. A tunnel joint leakage detection device according to claim 1, characterized in that: The gear hydraulic pump (47) is a gear pump, and the outer end of the gear pump is connected to a drive motor.

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