Safety supporting device for tunnel construction

Abstract

The invention provides a tunnel construction safety supporting device, and belongs to the technical field of tunnel construction, the tunnel construction safety supporting device comprises two sets of vertical supporting channel steel, a rope body, a conductive assembly, an alarm assembly and a limiting assembly, the two sets of vertical supporting channel steel are oppositely distributed, and the rope body is arranged on the rope body; arc-shaped supporting channel steel is fixedly arranged on the upper portions of the two sets of vertical supporting channel steel, the alarm assembly is installed on the side wall of one set of vertical supporting channel steel, one end of the rope body extends to the inner side of the arc-shaped supporting channel steel, and the other end of the rope body extends to the inner side of one set of vertical supporting channel steel and is connected with the conductive assembly. The limiting assembly is arranged on the inner side of the arc-shaped supporting steel channel. Compared with the prior art, the embodiment of the invention has the advantages that when the tunnel is supported, the abnormal condition of the tunnel can be monitored in time, so that the safety of constructors is improved.

Description

Technical Field

[0001] This invention belongs to the field of tunnel construction technology, specifically a tunnel construction safety support device. Background Technology

[0002] Currently, during tunnel construction, it is necessary to support and protect the tunnel simultaneously to prevent tunnel collapses and ground subsidence, thereby minimizing the impact on existing buildings.

[0003] Existing tunnel support devices are prone to deformation when supporting tunnels due to rock stress and construction factors. Once the support device is deformed, its support effect will be affected. Since the initial deformation of the support device is often small and not easily detected, the construction workers in the tunnel are in a dangerous situation without realizing it, and the safety of the construction workers cannot be effectively guaranteed. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a tunnel construction safety support device.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A tunnel construction safety support device includes a vertical support channel steel, a rope, a conductive component, an alarm component, and a limit component. The vertical support channel steel is provided in two sets, which are distributed opposite to each other. An arc-shaped support channel steel is fixedly installed on the upper part of the two sets of vertical support channel steel. The alarm component is installed on one of the sets of vertical support channel steel sidewalls. One end of the rope extends to the inside of the arc-shaped support channel steel, and the other end extends to the inside of one group of vertical support channel steels and is connected to the conductive component. The limiting component is disposed on the inner side of the arc-shaped support channel steel to constrain the rope body on the inner side of the arc-shaped support channel steel, so that the rope body follows the same trend as the inner side of the arc-shaped support channel steel.

[0006] As a further improvement of the present invention: a first support is fixedly provided on the inner side of one group of vertical support channel steels, and a threaded sleeve is fixedly provided at one end of the rope located on the inner side of one of the vertical support channel steels. A second through hole is provided on the first support for the threaded sleeve to pass through. The conductive component includes a first conductive ring, a second conductive ring, a stud, and a support sleeve. The first conductive ring is fixedly disposed at the bottom of the first support, the support sleeve is movably disposed inside one group of the vertical support channel steels, and the second conductive ring and the stud are fixedly disposed at the upper end of the support sleeve, with the second conductive ring located outside the stud. The alarm component includes an alarm power supply and an alarm device. The alarm power supply and the alarm device are fixedly installed on the side wall of the vertical support channel steel. The alarm device, the alarm power supply and the second conductive ring are connected in sequence by wires. The alarm device is connected to the first conductive ring by wires.

[0007] As a further improvement of the present invention: a guide component is also provided on the inner side of one of the vertical support channel steels, the guide component being used to guide the upward movement of the support sleeve and the second conductive ring.

[0008] As a further improvement of the present invention: a second support is also fixedly provided on the inner side of one group of the vertical support channel steels. The guiding assembly includes a guide rod. The lower end of the guide rod is fixedly connected to the second support, and the upper end extends into the inside of the support sleeve and telescopically cooperates with the support sleeve.

[0009] As a further improvement of the present invention: the limiting component includes a plurality of second limiting blocks. Several second limiting blocks are fixedly disposed inside the arc-shaped support channel steel. The several second limiting blocks are distributed sequentially at intervals inside the arc-shaped support channel steel. Each group of second limiting blocks has a first through hole through which the rope and the threaded sleeve can pass. A first limiting block is fixedly provided at the end of the rope away from the threaded sleeve, and the diameter of the first limiting block is larger than the diameter of the first through hole.

[0010] As a further improvement of the present invention: an elastic element is also provided on the outside of the guide rod, one end of the elastic element is connected to the support sleeve, and the other end is connected to the second support, for providing elastic tension to the support sleeve.

[0011] As a further improvement to the present invention: the alarm is an alarm light or a buzzer.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In this embodiment of the invention, when supporting a tunnel, two sets of vertical support channel steels act on opposite sidewalls of the tunnel, while arc-shaped support channel steels act on the tunnel roof. At this time, the alarm component is not powered on and therefore cannot issue an alarm signal. When the arc-shaped support channel steel deforms due to tunnel rock stress and construction factors, the deformed arc-shaped support channel steel, through a limiting component, causes the portion of the rope located inside the arc-shaped support channel steel to deform synchronously. When the rope deforms, it pulls the conductive component located inside one set of vertical support channel steels, causing the conductive component to adaptively displace. When the conductive component displaces, it powers on the alarm component, causing it to issue an alarm signal, thus alerting construction personnel inside the tunnel so they can evacuate in time, thereby improving safety. Compared to existing technologies, this method allows for timely monitoring of tunnel abnormalities during tunnel support, thereby improving the safety of construction personnel. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of a tunnel construction safety support device. Figure 1 ; Figure 2 A schematic diagram of the structure of a tunnel construction safety support device. Figure 2 ; Figure 3 A schematic diagram of the structure of a tunnel construction safety support device. Figure 3 ; Figure 4 for Figure 1 Enlarged view of region A in the middle; Figure 5 for Figure 1 Enlarged view of region B in the middle; Figure 6 for Figure 3 Enlarged diagram of region C in the middle; In the diagram: 10-Vertical support channel steel, 101-Arc-shaped support channel steel, 102-First support, 103-Second support, 20-Rope, 201-Threaded sleeve, 202-First limiting block, 30-Conductive component, 301-First conductive ring, 302-Second conductive ring, 303-Stud, 304-Support sleeve, 40-Guide component, 401-Guide rod, 402-Elastic element, 50-Alarm component, 501-Alarm power supply, 502-Alarm device, 60-Limiting component, 601-Second limiting block, 602-First through hole. Detailed Implementation

[0014] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0015] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0016] Please see Figure 1 , Figure 2 as well as Figure 3 This embodiment provides a tunnel construction safety support device, including vertical support channel steel 10, rope 20, conductive component 30, alarm component 50, and limiting component 60. Two sets of vertical support channel steel 10 are provided, distributed opposite to each other. Arc-shaped support channel steel 101 is fixedly installed on the upper part of each set of vertical support channel steel 10. The alarm component 50 is installed on the side wall of one set of vertical support channel steel 10. One end of the rope 20 extends to the inside of the arc-shaped support channel steel 101, and the other end extends to the inside of one set of vertical support channel steel 10 and is connected to the conductive component 30. The limiting component 60 is disposed inside the arc-shaped support channel steel 101 to constrain the rope 20 inside the arc-shaped support channel steel 101, ensuring that the rope 20 follows the same direction as the inside of the arc-shaped support channel steel 101.

[0017] When supporting the tunnel, two sets of vertical support channel steels 10 act on opposite sidewalls of the tunnel, while the arc-shaped support channel steel 101 acts on the tunnel roof. At this time, the alarm component 50 is not powered on and therefore cannot send an alarm signal. When the arc-shaped support channel steel 101 deforms due to tunnel rock stress and construction factors, the deformed arc-shaped support channel steel 101 drives the rope 20 located inside the arc-shaped support channel steel 101 to deform synchronously through the limiting component 60. When the rope 20 deforms, it pulls the conductive component 30 located inside one of the sets of vertical support channel steels 10, causing the conductive component 30 to shift adaptively. When the conductive component 30 shifts, it powers on the alarm component 50, causing the alarm component 50 to send an alarm signal, thereby alerting the construction personnel inside the tunnel so that they can evacuate the tunnel in time, thus improving safety.

[0018] Please see Figure 2 as well as Figure 4In one embodiment, a first support 102 is fixedly installed on the inner side of one set of vertical support channel steels 10. A threaded sleeve 201 is fixedly installed at one end of the rope 20 located on the inner side of one of the vertical support channel steels 10. A second through hole (not shown in the figure) is opened on the first support 102 for the threaded sleeve 201 to pass through. The conductive component 30 includes a first conductive ring 301, a second conductive ring 302, a stud 303, and a support sleeve 304. The first conductive ring 301 is fixedly installed at the bottom of the first support 102, and the support sleeve 304 is movably installed in one set of vertical support channel steels 10. Inside the vertical support channel steel 10, the second conductive ring 302 and the stud 303 are fixedly installed on the upper end of the support sleeve 304. The second conductive ring 302 is located outside the stud 303. The alarm assembly 50 includes an alarm power supply 501 and an alarm 502. The alarm power supply 501 and the alarm 502 are fixedly installed on the side wall of the vertical support channel steel 10. The alarm 502, the alarm power supply 501, and the second conductive ring 302 are connected in sequence by wires. The alarm 502 is connected to the first conductive ring 301 by wires.

[0019] After the two sets of vertical support channel steel 10 act on the opposite sidewalls of the tunnel and the arc-shaped support channel steel 101 acts on the top of the tunnel, the workers pull one end of the rope 20 with the threaded sleeve 201 to the inside of one of the sets of vertical support channel steel 10, and pass the threaded sleeve 201 through the second through hole on the first support 102 and the inside of the first conductive ring 301. Then, they rotate the threaded sleeve 201 so that the stud 303 is screwed into the threaded sleeve 201, thus completing the connection between the rope 20 and the support sleeve 304. At this time, the first conductive ring 301 is located above the second conductive ring 302 and the two are not in contact. The alarm power supply 501 cannot supply power to the alarm 502 through the second conductive ring 302, the first conductive ring 301 and the corresponding wires, and the alarm 502 does not emit an alarm signal. When the arc-shaped support channel steel 10... When the tunnel rock stress and construction factors cause deformation, the deformed arc-shaped support channel steel 101 drives the rope 20 located inside the arc-shaped support channel steel 101 to deform synchronously through the limiting component 60. When the rope 20 deforms, it pulls the threaded sleeve 201, causing the threaded sleeve 201 to move upward relative to the first support 102. When the threaded sleeve 201 moves upward, it drives the support sleeve 304 and the second conductive ring 302 to move upward synchronously through the stud 303. When the second conductive ring 302 moves upward, it contacts the first conductive ring 301. At this time, the alarm power supply 501 and the alarm 502 form a conductive circuit through the second conductive ring 302, the first conductive ring 301 and the corresponding wires. The alarm power supply 501 supplies power to the alarm 502, causing the alarm 502 to issue an alarm signal to remind the construction personnel.

[0020] Since the arc-shaped support channel steel 101 serves as a supporting component at the tunnel roof, its arched structure means that when a certain location of the arc-shaped support channel steel 101 bends and deforms, it will inevitably cause other locations to deform away from it. The parts that are far from the deformation will exert a lateral tension effect on the rope 20. When the rope 20 is under tension, one end is restricted and cannot move, while the other end pulls the second conductive ring 302 upward, thus contacting the first conductive ring 301 and triggering an alarm. Therefore, the second conductive ring 302 and the first conductive ring 301 can quickly respond to the deformation of the arc-shaped support channel steel 101, thereby quickly forming a conductive circuit and enabling the alarm 502 to sound quickly. When multiple locations of the arc-shaped support channel steel 101 bend and deform simultaneously, the parts located at the... The arc-shaped support channel steel 101 between the deformation points, as well as other non-deformed arc-shaped support channel steel 101 sections, will also experience displacement, and the rope will also receive a lateral pulling effect, thereby pulling the second conductive ring 302 upward and triggering the alarm 502. In some cases, the tunnel collapse is more severe, resulting in a greater degree of deformation of the arc-shaped support channel steel 101, which in turn leads to a greater degree of tensile deformation of the rope 20, causing the rope 20 to break and the alarm to fail. This situation is relatively extreme, so it has not been considered in this application. This application aims to provide early warning of the deformation phenomenon of the arc-shaped support channel steel 101 when it is within a reasonable deformation range, so as to remind the construction personnel accordingly.

[0021] Please see Figure 1 In one embodiment, a guide component 40 is also provided on the inner side of one of the vertical support channel steels 10. The guide component 40 is used to guide the upward movement of the support sleeve 304 and the second conductive ring 302, so that when the rope 20 deforms and pulls the support sleeve 304 and the second conductive ring 302 upward, the second conductive ring 302 can stably contact the first conductive ring 301, so that the alarm power supply 501 can smoothly supply power to the alarm 502.

[0022] Please see Figure 5 In one embodiment, a second support 103 is fixedly provided on the inner side of one of the vertical support channel steels 10. The guide assembly 40 includes a guide rod 401. The lower end of the guide rod 401 is fixedly connected to the second support 103, and the upper end extends into the inside of the support sleeve 304 and telescopically cooperates with the support sleeve 304.

[0023] The guide rod 401 provides guidance for the movement of the support sleeve 304, so that when the support sleeve 304 and the second conductive ring 302 move upward, the second conductive ring 302 can stably contact the first conductive ring 301.

[0024] Please see Figure 6In one embodiment, the limiting component 60 includes a plurality of second limiting blocks 601, which are fixedly disposed inside the arc-shaped support channel steel 101. The plurality of second limiting blocks 601 are distributed sequentially at intervals inside the arc-shaped support channel steel 101. Each group of second limiting blocks 601 is provided with a first through hole 602 through which the rope 20 and the threaded sleeve 201 can pass. The end of the rope 20 away from the threaded sleeve 201 is fixedly provided with a first limiting block 202. The diameter of the first limiting block 202 is larger than the diameter of the first through hole 602.

[0025] After the two sets of vertical support channel steels 10 act on the opposite sidewalls of the tunnel and the arc-shaped support channel steel 101 acts on the top of the tunnel, the workers pass the threaded sleeve 201 sequentially through the first through holes 602 on several second limiting blocks 601, and then insert the threaded sleeve 201 into the inside of one set of vertical support channel steels 10 and screw it into the stud 303. At this time, the rope 20 passes through the inside of several first through holes 602, and the weight of the supporting sleeve 304 acts on the rope 20, so that the first limiting block 202 at the end of the rope 20 away from the threaded sleeve 201 acts on the outermost edge. A set of second limiting blocks 601 on one side, thereby limiting the rope 20 to an arc-shaped structure inside the arc-shaped support channel steel 101. When the arc-shaped support channel steel 101 is deformed due to tunnel rock stress and construction factors, the deformed arc-shaped support channel steel 101 drives the second limiting blocks 601 to move. When the second limiting blocks 601 move, they drive the rope 20 to deform, thereby pulling the support sleeve 304 to move the support sleeve 304 and the second conductive ring 302 upward, so that the second conductive ring 302 contacts the first conductive ring 301, realizing the alarm of the alarm 502.

[0026] Please see Figure 5 In one embodiment, an elastic element 402 is also provided on the outer side of the guide rod 401. One end of the elastic element 402 is connected to the support sleeve 304, and the other end is connected to the second support 103, for providing elastic tension to the support sleeve 304.

[0027] After the threaded sleeve 201 is screwed to the stud 303, the support sleeve 304 is located at a certain position outside the guide rod 401, so that the elastic element 402 is in a stretched state. Through the elastic tension provided by the elastic element 402 to the support sleeve 304, the rope 20 is in a taut state inside the arc-shaped support channel steel 101, so that when the arc-shaped support channel steel 101 deforms, it can smoothly drive the rope 20 to deform synchronously through the second limit block 601, and then smoothly drive the support sleeve 304 and the second conductive ring 302 to move upward, so that the second conductive ring 302 can smoothly contact the first conductive ring 301.

[0028] In one embodiment, the elastic element 402 can be a spring or a metal sheet, and there is no limitation here.

[0029] In one embodiment, the alarm 502 may be an alarm light or a buzzer, and there is no limitation here.

[0030] In this embodiment of the invention, when supporting a tunnel, two sets of vertical support channel steels 10 act on opposite sidewalls of the tunnel, while arc-shaped support channel steel 101 acts on the tunnel top. At this time, the alarm component 50 is not powered on and therefore cannot issue an alarm signal. When the arc-shaped support channel steel 101 deforms due to tunnel rock stress and construction factors, the deformed arc-shaped support channel steel 101 drives the portion of the rope 20 located inside the arc-shaped support channel steel 101 to deform synchronously through the limiting component 60. When the rope 20 deforms, it pulls the conductive component 30 located inside one set of vertical support channel steels 10, causing the conductive component 30 to adaptively displace. When the conductive component 30 displaces, it powers on the alarm component 50, causing the alarm component 50 to issue an alarm signal, thereby alerting the construction personnel inside the tunnel so that they can evacuate the tunnel in time, thus improving safety. Compared with the prior art, when supporting a tunnel, abnormal conditions in the tunnel can be monitored in a timely manner, thereby improving the safety of construction personnel.

[0031] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A tunnel construction safety support device, characterized in that, This includes vertical support channel steel, ropes, conductive components, alarm components, and limit components. The vertical support channel steel is provided in two sets, which are distributed opposite to each other. An arc-shaped support channel steel is fixedly installed on the upper part of the two sets of vertical support channel steel. The alarm component is installed on one of the sets of vertical support channel steel sidewalls. One end of the rope extends to the inside of the arc-shaped support channel steel, and the other end extends to the inside of one group of vertical support channel steels and is connected to the conductive component. The limiting component is disposed on the inner side of the arc-shaped support channel steel to constrain the rope body on the inner side of the arc-shaped support channel steel, so that the rope body follows the same trend as the inner side of the arc-shaped support channel steel.

2. The tunnel construction safety support device according to claim 1, characterized in that, A first support is fixedly installed on the inner side of one group of vertical support channel steels. A threaded sleeve is fixedly installed at one end of the rope located on the inner side of one of the vertical support channel steels. A second through hole is provided on the first support for the threaded sleeve to pass through. The conductive component includes a first conductive ring, a second conductive ring, a stud, and a support sleeve. The first conductive ring is fixedly disposed at the bottom of the first support, the support sleeve is movably disposed inside one group of the vertical support channel steels, and the second conductive ring and the stud are fixedly disposed at the upper end of the support sleeve, with the second conductive ring located outside the stud. The alarm component includes an alarm power supply and an alarm device. The alarm power supply and the alarm device are fixedly installed on the side wall of the vertical support channel steel. The alarm device, the alarm power supply and the second conductive ring are connected in sequence by wires. The alarm device is connected to the first conductive ring by wires.

3. The tunnel construction safety support device according to claim 2, characterized in that, One of the vertical support channel steels is also provided with a guide component on its inner side, which is used to guide the upward movement of the support sleeve and the second conductive ring.

4. A tunnel construction safety support device according to claim 3, characterized in that, One of the sets of vertical support channel steels is also fixedly provided with a second support on the inner side. The guiding assembly includes a guide rod. The lower end of the guide rod is fixedly connected to the second support, and the upper end extends into the inside of the support sleeve and telescopically cooperates with the support sleeve.

5. A tunnel construction safety support device according to claim 2, characterized in that, The limiting component includes several second limiting blocks. Several second limiting blocks are fixedly disposed inside the arc-shaped support channel steel. The several second limiting blocks are distributed sequentially at intervals inside the arc-shaped support channel steel. Each group of second limiting blocks has a first through hole through which the rope and the threaded sleeve can pass. A first limiting block is fixedly provided at the end of the rope away from the threaded sleeve, and the diameter of the first limiting block is larger than the diameter of the first through hole.

6. A tunnel construction safety support device according to claim 4, characterized in that, An elastic element is also provided on the outside of the guide rod. One end of the elastic element is connected to the support sleeve, and the other end is connected to the second support, which is used to provide elastic tension to the support sleeve.

7. A tunnel construction safety support device according to claim 2, characterized in that, The alarm device is either an alarm light or a buzzer.

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