Subway tunnel communication cable installation device

Abstract

The invention relates to the technical field of communication cable installation, and particularly discloses a subway tunnel communication cable installation device which comprises a fixing plate, one side of the fixing plate is fixedly connected with a cable hanging plate, one side of the cable hanging plate is fixedly connected with a plurality of cable hanging rods, a water collecting groove is formed in the side, away from the cable hanging plate, of the fixing plate, and a water collecting pipe is fixedly connected to the lower side of the fixing plate. A water flow monitor is installed on one side of the water collecting pipe. The subway tunnel communication cable mounting device provided by the invention integrates the functions of tunnel water seepage monitoring and shield segment displacement monitoring, can be used for mounting and fixing a communication cable firstly, can also play a role in auxiliary support on the whole tunnel, can avoid the displacement of the shield segment to a certain extent, and can improve the safety of the tunnel. Furthermore, whether the shield segment displaces or not can be monitored, and finally the water seepage condition in the tunnel can be monitored to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of track settlement detection, and in particular to a communication cable installation device for a subway tunnel. Background Art

[0002] Tunnels are engineering structures buried in the ground, and are a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, and mining tunnels. The tunnel structure consists of two parts: the main building and auxiliary equipment. The main building consists of the tunnel body and the tunnel door. The auxiliary equipment includes a car shelter, fire-fighting facilities, emergency communications, and drainage facilities. Long tunnels also have special ventilation and lighting equipment.

[0003] The shield method is the most common method of tunnel construction. The shield method is to dig a tunnel underground with a shield machine and then install shield segments. Figure 5 A plurality of shield segments are spliced ​​into a tunnel wall ring 9 , and the tunnel is supported by the tunnel wall ring 9 . A gap 91 is provided between two adjacent tunnel wall rings 9 , and a water stop strip is provided in the gap 91 .

[0004] It is usually necessary to install communication cables in tunnels. In the prior art, when installing communication cables, multiple cable installation devices are first fixed in the tunnel by screws, and then the cables are passed through the brackets of the cable installation devices one by one, thereby achieving the installation of the communication cables.

[0005] In actual operation, screws generally cannot make holes in shield segments. If screws pass through shield segments, the strength of the shield segments may be reduced, which will affect the support effect of the shield segments. Therefore, in the prior art, when installing cable installation devices, screws generally pass through the gap 91 between adjacent tunnel wall rings 9. Although this will not damage the strength of the shield segments, the screws will pass through the water stop strip in the gap 91, which may cause water seepage there. On the other hand, in the later operation and use of the tunnel, the shield segments are affected by the vibration force of the train passing by, which may cause some shield segments to be displaced and deformed. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a subway tunnel communication cable installation device, which integrates the functions of tunnel water seepage monitoring and shield segment displacement monitoring on the communication cable installation device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A subway tunnel communication cable installation device comprises a fixing plate, one side of the fixing plate is fixedly connected to a wire hanging plate, one side of the wire hanging plate is fixedly connected to a plurality of wire hanging rods, a water collecting trough is provided on a side of the fixing plate away from the wire hanging plate, a lower side of the fixing plate is fixedly connected to a water collecting pipe, and a water flow monitor is installed on one side of the water collecting pipe.

[0009] Preferably, a straight section is provided at the lower end of the water collecting pipe, and the straight section is fixed on the subway roadbed in the tunnel.

[0010] Preferably, the upper ends of two corresponding fixed plates are jointly fixedly connected to two arc plates, the two arc plates are arranged at intervals, and an arc-shaped flexible test plate is arranged on each arc plate. The upper ends of the two corresponding fixed plates are jointly fixedly connected to a track, the track is located below the flexible test plate, and the displacement monitoring device is slidably connected on the track.

[0011] Preferably, the arc-shaped plate is embedded in a mounting groove on the outer arc surface of the flexible test board.

[0012] Preferably, the displacement monitoring device comprises a slider which slides back and forth on the track, wings are mounted on both sides of the slider, a displacement sensor is mounted on each wing, a roller is mounted on the probe of the displacement sensor, and the roller contacts the flexible test plate.

[0013] Preferably, a distance sensor is mounted on the lower side of the slider.

[0014] Preferably, an elastic membrane is arranged between the flexible test plates, the elastic membrane is arranged in contact with the inner wall of the tunnel, the upper side of the slider is fixedly connected to the support rod, the support rod is fixedly connected to the scraper, and the scraper is in contact with the elastic membrane.

[0015] Beneficial effects of the present invention: A subway tunnel communication cable installation device provided by the present invention integrates the functions of tunnel water seepage monitoring and shield segment displacement monitoring. First, it can be used to install and fix communication cables. Secondly, it can also play an auxiliary support role for the entire tunnel, and can avoid the displacement of the shield segment to a certain extent. Thirdly, it can also monitor whether the shield segment is displaced. Finally, it can also monitor the water seepage situation in the tunnel to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a basic structural diagram of a subway tunnel communication cable installation device provided by the present invention;

[0017] Figure 2 It is a schematic diagram of the connection structure between the flexible test board and the curved board;

[0018] Figure 3 yes Figure 1 Another perspective of the picture;

[0019] Figure 4 yes Figure 3A magnified view of part A;

[0020] Figure 5 It is a working state diagram of the present invention;

[0021] Figure 6 yes Figure 5 Front view of . DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Example 1

[0024] like Figure 1-6 As shown, a subway tunnel communication cable installation device of this embodiment includes a fixing plate 1, one side of the fixing plate 1 is fixedly connected to a hanging plate 2, one side of the hanging plate 2 is fixedly connected to a plurality of hanging rods 21, when it is necessary to arrange communication cables in the tunnel, the communication cables are installed and fixed on the hanging plate 2, and locked and fixed on the hanging rods 21 by corresponding buckles.

[0025] In the prior art, the fixed plate 1 is usually fixed to the inner wall of the tunnel by expansion screws, and the expansion screws usually pass through the gap 91 between the tunnel wall rings 9, so that the expansion screws will damage the water stop, and the water stop is prone to water seepage here. In this embodiment, the function of detecting water seepage is added. Specifically, a water collecting trough 11 is provided on the side of the fixed plate 1 away from the hanging plate 2 in this embodiment, and the lower side of the fixed plate 1 is fixedly connected to the water collecting pipe 3, and a water flow monitor 31 is installed on one side of the water collecting pipe 3. In this way, the seeping water will be concentrated in the water collecting trough 11 and flow into the water collecting pipe 3, and monitored by the water flow monitor 31. When water passes through the water flow monitor 31, the water flow monitor 31 will send an alarm signal, proving that there is a water leakage in this area. The lower end of the water collecting pipe 3 is provided with a straight section 33, and the straight section 33 is fixed on the subway roadbed in the tunnel. In this way, the water collecting pipe 3 not only has the function of cooperating with the water flow monitor 31 to monitor the water flow, but also can serve as a support frame for the fixing plate 1 and the hanging wire plate 2, which can further improve the stability of the fixing plate 1 and the hanging wire plate 2.

[0026] Two arc plates 4 are fixedly connected together at the upper ends of two corresponding fixed plates 1, and the two arc plates 4 are arranged at intervals, so that two arched arc plates are arranged on the top of the fixed plates 1. The inner wall of the tunnel is supported by the arc plates 4, which can avoid displacement of the shield segments to a certain extent.

[0027] At the same time, in order to monitor the displacement of the shield segment in the tunnel, an arc-shaped flexible test plate 5 is set on each arc plate 4, and the arc plate 4 is embedded in the installation groove of the outer arc surface of the flexible test plate 5. The function of the flexible test plate 5 is to facilitate the measurement of displacement changes. Because it is flexible, when the shield segment is displaced, the change of the flexible test plate 5 will be very obvious. In order to perform displacement testing, a track 7 is fixedly connected at the upper ends of two corresponding fixed plates 1. The track 7 is located below the flexible test plate 5, and a displacement monitoring device 8 is slidably connected to the track 7. The displacement monitoring device 8 includes a slider 81, which slides back and forth on the track 7. Limiting shafts 83 are set on both sides of the slider 81. The limiting shafts 83 can ensure that the slider 81 slides stably along the track 7 and ensure that the slider 81 does not shake during the sliding process. In addition, a walking device is installed on the slider 81, which is used to drive the slider 81 to walk on the track 7. The walking device is not drawn in the figure. This is a prior art and will not be repeated here. Wing plates 82 are installed on both sides of the slider 81. Each wing plate 82 is equipped with a displacement sensor 84. The probe of the displacement sensor 84 is equipped with a roller 85, and the roller 85 is in contact with the flexible test board 5. When the slider 81 slides along the track 7, the tunnel top is monitored by the displacement sensor 84. When the shield segment is displaced, the displacement sensor 84 can issue an alarm. The purpose of using two displacement sensors 84 is to enable comparative monitoring. When the change values ​​of the two displacement sensors 84 are different, it is highly likely that the shield segment has been displaced. Of course, a single displacement sensor 84 also has a monitoring function. The displacement sensor 84 is a prior art, and the method of monitoring displacement changes is also a prior art, which will not be described in detail here. At the same time, a distance sensor 87 is installed on the lower side of the slider 81. This embodiment uses an infrared sensor. During the movement of the slider, the distance sensor 87 can monitor the distance between the slider and the bottom surface of the tunnel. When the value obtained by the distance sensor 87 is inconsistent with the predetermined value, it proves that the movement trajectory of the slider is wrong, thereby indirectly deducing that the surrounding shield segments have undergone displacement changes.

[0028] During tunnel operation, water seepage may occur easily in the gap at the top of the tunnel when there are people. Therefore, the subway tunnel communication cable installation device in this embodiment can also monitor the water seepage at the top. Specifically, an elastic membrane 6 is arranged between two flexible test plates 5. The elastic membrane 6 is arranged in close contact with the inner wall of the tunnel. The other two ends of the elastic membrane 6 are connected to the fixed plate 1. In this way, the water seepage in the gap at the top of the tunnel will be collected by the elastic membrane 6, flow downward along the elastic membrane, and finally flow into the water collection tank along the drainage holes on the fixed plate 1. The drainage holes are connected to the water collection tank, so that the water seepage in the gap at the top of the tunnel can be monitored. In order to prevent the water seepage from entering the water collection tank, a support rod 88 is fixedly connected to the upper side of the slider 81, and a scraper 89 is fixedly connected to the support rod 88, and the scraper 89 is in contact with the elastic membrane 6. During the movement of the slider, the elastic membrane 6 is scraped by the scraper 89, so that the water seepage can enter the water collection tank.

Claims

1. A subway tunnel communication cable installation device, comprising a fixing plate (1), one side of the fixing plate (1) is fixedly connected to a wire hanging plate (2), one side of the wire hanging plate (2) is fixedly connected to a plurality of wire hanging rods (21), characterized in that: A water collecting trough (11) is provided on one side of the fixing plate (1) away from the wire hanging plate (2); a water collecting pipe (3) is fixedly connected to the lower side of the fixing plate (1); and a water flow monitor (31) is installed on one side of the water collecting pipe (3).

2. A subway tunnel communication cable installation device according to claim 1, characterized in that: A straight section (33) is provided at the lower end of the water collecting pipe (3), and the straight section (33) is fixed on the subway roadbed in the tunnel.

3. A subway tunnel communication cable installation device according to claim 1, characterized in that: The upper ends of the two corresponding fixed plates (1) are commonly fixedly connected to two arc-shaped plates (4), the two arc-shaped plates (4) are arranged at intervals, and an arc-shaped flexible test plate (5) is arranged on each arc-shaped plate (4). The upper ends of the two corresponding fixed plates (1) are commonly fixedly connected to a track (7), the track (7) is located below the flexible test plate (5), and a displacement monitoring device (8) is slidably connected to the track (7).

4. A subway tunnel communication cable installation device according to claim 3, characterized in that: The arc-shaped plate (4) is embedded in a mounting groove on the outer arc surface of the flexible test plate (5).

5. The subway tunnel communication cable installation device according to claim 3, characterized in that: The displacement monitoring device (8) comprises a slider (81), the slider (81) slides back and forth on the track (7), wing plates (82) are mounted on both sides of the slider (81), a displacement sensor (84) is mounted on each wing plate (82), a roller (85) is mounted on a probe of the displacement sensor (84), and the roller (85) is in contact with the flexible test plate (5).

6. A subway tunnel communication cable installation device according to claim 5, characterized in that: A distance sensor (87) is mounted on the lower side of the slider (81).

7. A subway tunnel communication cable installation device according to claim 5, characterized in that: An elastic membrane (6) is arranged between the flexible test plates (5), and the elastic membrane (6) is arranged in close contact with the inner wall of the tunnel. The upper side of the slider (81) is fixedly connected to a support rod (88), and a scraper (89) is fixedly connected to the support rod (88), and the scraper (89) is in contact with the elastic membrane (6).

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