Subway tunnel section deformation monitoring system

Abstract

The invention relates to a subway tunnel section deformation monitoring system which comprises a tunnel lining, a monitoring trolley and a cloud platform. The monitoring trolley comprises a frame, a plurality of walking wheels and a first camera, the walking wheels are arranged on the frame so as to be matched with the trolley track, a driving motor used for driving the walking wheels to rotate is arranged on the frame, and the first camera is arranged on the frame and faces the longitudinal splicing seam; a controller is arranged on the frame, the first camera is connected to the controller, the controller is connected to the driving motor, a wireless communicator is connected to the controller, and the first camera is used for collecting image data of the longitudinal splicing seam; and the controller transmits the image data of the first camera to the cloud platform through the wireless communicator. The method has the effect of improving the monitoring efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of subway tunnel deformation monitoring, and in particular to a subway tunnel section deformation monitoring system. Background Art

[0002] At present, subway transportation is an effective way to solve the traffic congestion problem in the process of urbanization. However, the complex underground space structure, ground, surrounding building loads and soil disturbance have caused great hidden dangers to tunnel safety. At the same time, since subway lines are mostly distributed in prosperous cities with densely populated areas of buildings and people, safety monitoring of subway tunnel structure safety is particularly important.

[0003] Subway tunnels are usually constructed using the shield method, and their lining is made of spliced ​​segments. Due to the high sensitivity and compressibility of coastal soft soil, tunnels are prone to tunnel settlement and longitudinal deformation during long-term use, leading to tunnel leakage, lining cracks, track distortion, and even threats to driving safety in severe cases.

[0004] Regarding the above-mentioned related technologies, the tunnel settlement deformation devices currently used generally have special staff to conduct regular monitoring of the internal vault of the tunnel. In the project, real-time monitoring of the joint deformation is usually carried out to intuitively reflect the condition of the tunnel structure, so as to avoid major disasters. The manual monitoring method is inefficient, so there is room for improvement. Summary of the invention

[0005] In order to improve monitoring efficiency, the present application provides a subway tunnel section deformation monitoring system.

[0006] The present application provides a subway tunnel section deformation monitoring system that adopts the following technical solutions: A subway tunnel section deformation monitoring system, comprising a tunnel lining, a monitoring trolley and a cloud platform; The tunnel lining includes a plurality of shield pipes spliced ​​and fixed front and back, the shield pipes include a plurality of shield segments spliced ​​and fixed along the circumferential direction, a longitudinal splicing seam is formed between adjacent shield segments, a trolley track is arranged in the tunnel lining along the longitudinal splicing seam, and the monitoring trolley is movably installed on the trolley track; The monitoring trolley includes a frame, a plurality of running wheels and a first camera, the running wheels are arranged on the frame to be installed in conjunction with the trolley track, the frame is provided with a driving motor for driving the running wheels to rotate, the first camera is arranged on the frame and faces the longitudinal joint, the frame is provided with a controller, the first camera is connected to the controller, the controller is connected to the driving motor, the controller is connected to a wireless communicator, the first camera is used to collect image data of the longitudinal joint, and the controller transmits the image data of the first camera to the cloud platform through the wireless communicator.

[0007] Preferably, a circumferential joint is formed between adjacent shield pipes, and a monitoring component for monitoring the circumferential joint is provided between adjacent monitoring trolleys.

[0008] Preferably, the monitoring assembly includes a traction wheel rotatably mounted on the frame of the monitoring trolley, and a traction rope arranged on the traction wheel, the frame is provided with a traction motor connected to the traction wheel, and the traction rope is provided with a monitoring part for monitoring the circumferential joint.

[0009] Preferably, the monitoring unit includes a mounting bracket fixed on the traction rope, and a telescopic rod arranged on the mounting bracket, a universal wheel is installed at the end of the telescopic rod, and the universal wheel is in contact with the inner wall of the tunnel lining, and a second camera facing the circumferential joint is arranged on the telescopic rod, and the second camera is used to collect image data of the circumferential joint, and the second camera is connected to the controller, and the controller is used to transmit the image data of the second camera to the cloud platform through the wireless communicator.

[0010] Preferably, the telescopic rod comprises a first rod and a second rod, the end of the first rod is fixedly mounted on the mounting bracket, the second rod is slidably mounted in the first rod, and the first rod is provided with a telescopic spring that abuts against the end of the second rod.

[0011] Preferably, a piston plate is slidably installed in the second rod, and a receiving cavity is formed in the second rod through the piston plate. Waterproof glue is provided in the receiving cavity. A spray head communicating with the receiving cavity is provided on the second rod, and the spray head faces the circumferential joint. An electric push rod connected to the piston plate is provided in the second rod, and the electric push rod is connected to the controller.

[0012] Preferably, a glue injection joint is provided on the mounting bracket, a conduit is connected to the glue injection joint, a glue injection one-way valve is provided on the piston plate, and the conduit is connected to the glue injection one-way valve.

[0013] Preferably, a glue storage box is provided on the frame of the monitoring trolley, a glue suction tube extending into the glue storage box is provided on the frame, a glue suction pump is installed on the glue suction tube, a glue injection bracket is provided on the frame, a glue injection tube is provided on the glue injection bracket, a glue injection head for cooperating with the glue injection joint is provided on the glue injection tube, and the glue injection tube is connected to the glue suction tube.

[0014] Preferably, the glue injection head is provided with a magnetic sheet, and the glue injection joint is provided with a permanent magnet for cooperating with the magnetic sheet.

[0015] Preferably, the glue storage box is provided with a glue filling port, and a sealing screw plug is installed on the glue filling port.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: In the present application, the monitoring trolley can move along the trolley track, and the trolley track is arranged along the longitudinal joint. The first camera can capture image data of the longitudinal joint and transmit the image data to the cloud platform. The cloud platform identifies and analyzes the image data to complete the analysis of whether the tunnel lining has settled. Therefore, the above method can effectively release manual monitoring, thereby improving the efficiency of monitoring and reducing the labor intensity of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the installation of the monitoring car on the tunnel lining.

[0018] Figure 2 It is the system block diagram of the subway tunnel section deformation monitoring system.

[0019] Figure 3 It is a structural diagram of the monitoring car.

[0020] Figure 4 It is a structural diagram of the monitoring unit.

[0021] Explanation of the reference numerals in the accompanying drawings: 1. shield segment; 2. monitoring trolley; 21. frame; 22. walking wheel; 23. first camera; 24. driving motor; 3. trolley track; 4. monitoring component; 41. traction wheel; 42. traction rope; 43. monitoring unit; 431. mounting bracket; 432. telescopic rod; 4321. first rod; 4322. second rod; 4323. telescopic spring; 433. universal wheel; 434. second camera; 435. piston plate; 436. accommodating chamber; 437. spray head; 438. electric push rod; 439. glue injection joint; 440. conduit; 441. glue injection one-way valve; 44. glue storage box; 45. glue suction hose; 46. glue suction pump; 47. glue injection hose; 48. sealing screw plug. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-4 This application is described in further detail.

[0023] A subway tunnel section deformation monitoring system, referring to Figure 1 and Figure 2 As shown, it includes a tunnel lining, a monitoring vehicle 2 and a cloud platform. The tunnel lining includes a plurality of shield pipes spliced ​​and fixed front and back, and the shield pipes include a plurality of shield segments 1 spliced ​​and fixed along the circumferential direction, and adjacent shield segments 1 are fixed by segment bolts.

[0024] Each shield segment 1 is arranged in an arc shape. In one embodiment, five shield segments 1 can be spliced ​​to form a shield pipe. The shield pipe is in a circular tube shape. Adjacent shield segments 1 are installed and fixed by segment bolts, and the shield pipes are correspondingly installed and fixed by segment bolts. The segment bolts are located on the shield segments 1 to fix adjacent shield pipes. A longitudinal splicing seam is formed between adjacent shield segments 1, and a circumferential splicing seam is formed between adjacent shield pipes. The longitudinal splicing seam is continuously arranged along the tunnel lining.

[0025] A trolley track 3 is arranged along the longitudinal joint in the tunnel lining. Three longitudinal joints are arranged in the tunnel lining. A trolley track 3 is arranged on each longitudinal joint. The monitoring trolley 2 is movably installed on the trolley track 3 .

[0026] Reference Figure 1 and Figure 3 As shown, the monitoring trolley 2 includes a frame 21, a plurality of running wheels 22 and a first camera 23. The running wheels 22 are arranged on the frame 21 to be installed in conjunction with the trolley track 3. Two trolley tracks 3 are provided, and the two trolley tracks 3 are provided on both sides of the longitudinal joint. The running wheels 22 are respectively arranged on both sides of the trolley track 3. The trolley track 3 is arranged in an I-shape. The surface of the trolley track 3 is provided with a running groove, and the running wheel 22 is embedded in the running groove. A driving motor 24 for driving the running wheel 22 to rotate is provided on the frame 21.

[0027] The first camera 23 is arranged on the frame 21 and faces the longitudinal joint, and the first camera 23 is used to collect image data of the longitudinal joint. A controller is arranged on the frame 21, and the first camera 23 is connected to the controller. The first camera 23 can be connected to the controller by wire or wirelessly, and the controller is connected to the drive motor 24. A wireless communicator is connected to the controller, and the wireless communicator is used to communicate with the cloud platform. The controller transmits the image data of the first camera 23 to the cloud platform through the wireless communicator.

[0028] It is worth mentioning that the controller is also connected to a GPS locator.

[0029] Therefore, the cloud platform sends control instructions to the controller, the controller controls the drive motor 24 to move, monitors the trolley 2 running along the trolley track 3, and the first camera 23 collects image data of the longitudinal joint. The controller can transmit the image data of the first camera 23 to the cloud platform, and the cloud platform identifies and analyzes the image data to determine the settlement of the tunnel lining, and records the settlement position of the tunnel lining to facilitate subsequent maintenance of the settlement position of the tunnel lining.

[0030] A monitoring assembly 4 for monitoring the circumferential joint seam is arranged between adjacent monitoring trolleys 2 .

[0031] The monitoring assembly 4 includes a traction wheel 41 rotatably mounted on the frame 21 of the monitoring trolley 2, and a traction rope 42 arranged on the traction wheel 41. A traction motor connected to the traction wheel 41 is arranged on the frame 21, and the traction motor is connected to the controller. A monitoring part 43 for monitoring the circumferential joint is arranged on the traction rope 42. Two traction wheels 41 are arranged on the frame 21 of each monitoring trolley 2, and the two traction wheels 41 are arranged side by side at intervals.

[0032] In this embodiment, there are three monitoring trolleys 2, which are monitoring trolley No. 1, monitoring trolley No. 2 and monitoring trolley No. 3 from left to right. The traction rope 42 connects the monitoring trolley No. 1, monitoring trolley No. 2 and monitoring trolley No. 3 together, that is, one end of the traction rope 42 can be wound on the traction wheel 41 on the left side of the monitoring trolley No. 1, and the other end of the traction rope 42 can be wound on the right traction wheel 41 of the monitoring trolley No. 3. The traction wheels 41 on the monitoring trolley No. 1, monitoring trolley No. 2 and monitoring trolley No. 3 are used to guide the traction rope 42. Among them, the traction motors arranged on the frame 21 are respectively arranged on the left traction wheel 41 of the monitoring trolley No. 1 and the right traction wheel 41 of the monitoring trolley No. 3.

[0033] Therefore, when the monitoring trolley 2 moves to the position of the circumferential splicing seam, the monitoring unit 43 is aligned with the circumferential splicing seam. At this time, the traction motor drives the traction wheel 41 to rotate, and the traction wheel 41 drives the traction rope 42 to move. The monitoring unit 43 is set on the traction rope 42. The monitoring unit 43 will move between the three monitoring trolleys 2 with the traction rope 42, so as to realize the monitoring of the circumferential splicing seam by the monitoring unit 43.

[0034] In this application, reference is made to Figure 1 , Figure 3 and Figure 4As shown, the monitoring unit 43 includes a mounting bracket 431 fixed on the traction rope 42, and a telescopic rod 432 arranged on the mounting bracket 431. A universal wheel 433 is installed at the end of the telescopic rod 432. The telescopic rod 432 can be extended and retracted toward the inner wall of the tunnel lining, and the universal wheel 433 contacts the inner wall of the tunnel lining. A second camera 434 facing the circumferential joint is arranged on the telescopic rod 432. The second camera 434 is connected to the controller. The second camera 434 can be connected to the controller by wire or wirelessly. The second camera 434 is used to collect image data of the circumferential joint. The controller is used to transmit the image data of the second camera 434 to the cloud platform through a wireless communicator. The image data of the second camera 434 is identified and analyzed by the cloud platform to determine the settlement of the tunnel lining in the circumferential direction, so as to facilitate the subsequent maintenance of the settlement position of the tunnel lining.

[0035] The telescopic rod 432 includes a first rod 4321 and a second rod 4322. The end of the first rod 4321 is fixedly mounted on the mounting bracket 431, and the second rod 4322 is slidably mounted in the first rod 4321. The first rod 4321 is provided with a telescopic spring 4323 that abuts against the end of the second rod 4322. One end of the telescopic spring 4323 abuts against the mounting bracket 431, and the other end of the telescopic spring 4323 abuts against the end of the second rod 4322. The telescopic spring 4323 provides elastic force for the second rod 4322 toward one side of the circumferential joint seam.

[0036] A piston sheet 435 is slidably installed in the second rod 4322, and a receiving cavity 436 is formed in the second rod 4322 through the piston sheet 435. A waterproof glue is arranged in the receiving cavity 436. A spray head 437 communicating with the receiving cavity 436 is arranged on the second rod 4322, and the spray head 437 faces one side of the circumferential joint. An electric push rod 438 connected to the piston sheet 435 is arranged in the second rod 4322, and the electric push rod 438 is connected to the controller. When the tunnel lining sinks at the circumferential joint, the electric push rod 438 drives the piston sheet 435 to squeeze the receiving cavity 436, and the waterproof glue in the receiving cavity 436 is sprayed from the spray head 437 to the sinking position of the circumferential joint, and the waterproof glue can improve the waterproof effect at the circumferential joint.

[0037] The frame 21 of the monitoring trolley 2 is provided with a glue storage box 44, and waterproof glue is provided in the glue storage box 44. The frame 21 is provided with a glue suction tube 45 extending into the glue storage box 44, and a glue suction pump 46 is installed on the glue suction tube 45. The frame 21 is provided with a glue injection bracket, and a glue injection tube 47 is provided on the glue injection bracket. The glue injection tube 47 is provided with a glue injection head, and the glue injection tube 47 is connected to the glue suction tube 45. The mounting bracket 431 is provided with a glue injection joint 439, and the glue injection joint 439 is connected with a conduit 440. The piston plate 435 is provided with a glue injection check valve 441, and the conduit 440 is connected to the glue injection check valve 441. The glue injection head is used to cooperate with the glue injection joint 439.

[0038] When the waterproof glue in the accommodating cavity 436 is squeezed out and needs to be replenished, the traction rope 42 moves the monitoring part 43 to the position of the glue storage box 44. At this time, the glue injection head is opposite to the glue injection joint 439, and the glue suction pump 46 is started. The waterproof glue in the glue storage box 44 is injected from the glue injection head to the glue injection joint 439 through the glue suction tube 45 and the glue injection pump, and then replenished into the accommodating cavity 436 through the conduit 440 and the glue injection one-way valve 441, thereby completing the replenishment of the waterproof glue in the accommodating cavity 436.

[0039] It is worth mentioning that a magnetic sheet is provided on the glue injection head, and a permanent magnet for cooperating with the magnetic sheet is provided on the glue injection joint 439. The permanent magnet and the magnetic sheet can improve the tightness of the connection between the glue injection joint 439 and the glue injection head.

[0040] The glue storage box 44 is provided with a glue replenishing port, and a sealing screw plug 48 is installed on the glue replenishing port. By opening the sealing screw plug 48, the waterproof glue can be conveniently replenished into the glue storage box 44.

[0041] It is worth noting that the traction motor, the second camera 434, the electric push rod 438 and the glue suction pump 46 in the monitoring component 4 of the present application can be directly connected to the controller by wired or wireless means, or can be connected to the integrated control chip by wired or wireless means, and the integrated control chip is further connected to the controller by wired or wireless means. The controller sends control instructions to the integrated control chip, and the integrated control chip realizes the control of the above components.

[0042] The following further describes the workflow of the subway tunnel section deformation monitoring system of the present application.

[0043] The cloud platform sends a control instruction to the controller, and the controller controls the driving motor 24 to move, monitors the trolley 2 running along the trolley track 3, and the first camera 23 collects image data of the longitudinal joint. The controller can transmit the image data of the first camera 23 to the cloud platform, and the cloud platform recognizes and analyzes the image data to determine the settlement of the tunnel lining, and records the settlement position of the tunnel lining to facilitate the subsequent maintenance of the settlement position of the tunnel lining; When the monitoring trolley 2 moves to the circumferential joint position of the tunnel lining, if the monitoring unit 43 stays at the position of the No. 3 monitoring trolley 2 at this time, the cloud platform sends a control instruction to the controller, the controller controls the traction motor to start, the traction motor drives the traction wheel 41 to rotate, the traction wheel 41 drives the traction rope 42 to move, and the traction rope 42 drives the monitoring unit 43 to move along the circumferential joint. The second camera 434 on the monitoring unit 43 collects image data of the circumferential joint, and the image data of the second camera 434 is transmitted to the controller. The controller transmits the image data of the second camera 434 to the cloud platform through the wireless communicator, and the image data of the second camera 434 is identified and analyzed by the cloud platform to determine the settlement of the tunnel lining in the circumferential direction, so as to facilitate the subsequent maintenance of the settlement position of the tunnel lining.

[0044] Among them, when the tunnel lining sinks at the longitudinal joints and circumferential joints, the controller controls the monitoring unit 43 to move to the corresponding sinking position, and the cloud platform sends a control instruction to the controller. The controller controls the electric push rod 438 to move, and the electric push rod 438 drives the piston plate 435 to move. The piston plate 435 sprays the waterproof glue in the accommodating cavity 436 from the sprinkler head 437 to the sinking position, thereby improving the waterproof effect at the sinking position.

[0045] When the waterproof glue in the accommodating cavity 436 needs to be replenished after being squeezed, the controller controls the monitoring unit 43 to move to the position of the glue storage box 44 of the monitoring trolley 2. At this time, the glue injection head is opposite to the glue injection joint 439 on the mounting bracket 431, and the glue suction pump 46 is started. The waterproof glue in the glue storage box 44 is injected from the glue injection head to the glue injection joint 439 through the glue suction tube 45 and the glue injection pump, and then replenished into the accommodating cavity 436 through the conduit 440 and the glue injection one-way valve 441, thereby completing the replenishment of the waterproof glue in the accommodating cavity 436, which is convenient for the subsequent spraying of waterproof glue on the settlement position of the tunnel lining.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A subway tunnel section deformation monitoring system, characterized in that: The invention comprises a tunnel lining, a monitoring trolley (2) and a cloud platform; the tunnel lining comprises a plurality of shield pipes spliced ​​and fixed front and rear, the shield pipes comprise a plurality of shield segments (1) spliced ​​and fixed along a circumferential direction, a longitudinal splicing seam is formed between adjacent shield segments (1), a trolley track (3) is arranged in the tunnel lining along the longitudinal splicing seam, and the monitoring trolley (2) is movably mounted on the trolley track (3); The monitoring trolley (2) comprises a frame (21), a plurality of running wheels (22) and a first camera (23); the running wheels (22) are arranged on the frame (21) to be installed in cooperation with the trolley track (3); the frame (21) is provided with a driving motor (24) for driving the running wheels (22) to rotate; the first camera (23) is arranged on the frame (21) and faces the longitudinal joint; the frame (21) is provided with a controller; the first camera (23) is connected to the controller; the controller is connected to the driving motor (24); the controller is connected to a wireless communicator; the first camera (23) is used to collect image data of the longitudinal joint; the controller transmits the image data of the first camera (23) to the cloud platform via the wireless communicator.

2. A subway tunnel section deformation monitoring system according to claim 1, characterized in that: A circumferential joint is formed between adjacent shield pipes, and a monitoring component (4) for monitoring the circumferential joint is arranged between adjacent monitoring trolleys (2).

3. A subway tunnel section deformation monitoring system according to claim 2, characterized in that: The monitoring assembly (4) comprises a traction wheel (41) rotatably mounted on a frame (21) of the monitoring trolley (2), and a traction rope (42) arranged on the traction wheel (41); a traction motor connected to the traction wheel (41) is arranged on the frame (21); and a monitoring portion (43) for monitoring the circumferential joint seam is arranged on the traction rope (42).

4. A subway tunnel section deformation monitoring system according to claim 3, characterized in that: The monitoring unit (43) comprises a mounting bracket (431) fixed on the traction rope (42), and a telescopic rod (432) arranged on the mounting bracket (431), a universal wheel (433) being installed at the end of the telescopic rod (432), the universal wheel (433) being in contact with the inner wall of the tunnel lining, and a second camera (434) facing the circumferential joint is arranged on the telescopic rod (432), the second camera (434) being used to collect image data of the circumferential joint, the second camera (434) being connected to the controller, and the controller being used to transmit the image data of the second camera (434) to the cloud platform via the wireless communicator.

5. A subway tunnel section deformation monitoring system according to claim 4, characterized in that: The telescopic rod (432) includes a first rod (4321) and a second rod (4322), the end of the first rod (4321) is fixedly mounted on the mounting bracket (431), the second rod (4322) is slidably mounted in the first rod (4321), and the first rod (4321) is provided with a telescopic spring (4323) that abuts against the end of the second rod (4322).

6. A subway tunnel section deformation monitoring system according to claim 5, characterized in that: A piston plate (435) is slidably installed in the second rod (4322), and a receiving cavity (436) is formed in the second rod (4322) through the piston plate (435). Waterproof glue is arranged in the receiving cavity (436). A spray head (437) communicating with the receiving cavity (436) is arranged on the second rod (4322), and the spray head (437) faces the circumferential joint seam. An electric push rod (438) connected to the piston plate (435) is arranged in the second rod (4322), and the electric push rod (438) is connected to the controller.

7. A subway tunnel section deformation monitoring system according to claim 6, characterized in that: The mounting bracket (431) is provided with a glue injection joint (439), the glue injection joint (439) is connected with a conduit (440), the piston plate (435) is provided with a glue injection one-way valve (441), and the conduit (440) is connected to the glue injection one-way valve (441).

8. A subway tunnel section deformation monitoring system according to claim 7, characterized in that: The frame (21) of the monitoring trolley (2) is provided with a glue storage box (44), the frame (21) is provided with a glue suction tube (45) extending into the glue storage box (44), the glue suction tube (45) is installed with a glue suction pump (46), the frame (21) is provided with a glue injection bracket, the glue injection bracket is provided with a glue injection tube (47), the glue injection tube (47) is provided with a glue injection head for cooperating with the glue injection joint (439), and the glue injection tube (47) is connected to the glue suction tube (45).

9. A subway tunnel section deformation monitoring system according to claim 8, characterized in that: The glue injection head is provided with a magnetic attraction sheet, and the glue injection joint (439) is provided with a permanent magnet for cooperating with the magnetic attraction sheet.

10. A subway tunnel section deformation monitoring system according to claim 8, characterized in that: The glue storage box (44) is provided with a glue replenishing port, and a sealing screw plug (48) is installed on the glue replenishing port.

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