A temporary support device for tunnel collapse rescue

Abstract

The present invention provides a temporary support device for tunnel collapse rescue, comprising: a bottom plate, a support frame, a cross beam and an arc-shaped top plate. The cross beam is supported on the top of the bottom plate by a plurality of support frames. A plurality of support components for supporting the arc-shaped top plate are arranged on the top of the cross beam. The arc-shaped top plate is used to support the collapse area at the top of the tunnel. Each of the support components includes a connecting column and a connecting plate. There are two connecting plates, and the two connecting plates are arranged on the top of the cross beam at intervals. The connecting column is fixed to the bottom of the arc-shaped top plate. A connecting strip is arranged at the bottom of the connecting column. The connecting strip is vertically inserted between the two connecting plates, and the connecting strip is slidably connected with the two connecting plates. The connecting strip is detachably connected with the two connecting plates by bolts. A plurality of mounting holes distributed in the vertical direction are arranged on both the connecting strip and the connecting plates, solving the problem in the prior art that the existing installation channel device cannot adjust the height of the arc-shaped top plate according to the actual height of the tunnel collapse area.

Description

Technical Field

[0001] The present invention relates to the technical field of construction, and particularly to a temporary support device for tunnel collapse rescue. Background Art

[0002] During tunnel construction, some safety accidents may occur, and tunnel collapse is one of them. During the construction process, the rock is both the excavation object and the support object. After the rock is excavated, the original rock mass structure and stress balance are destroyed. Under the action of its own weight, the stress of the rock mass is redistributed to form a new stress balance system, making it extremely easy to occur tunnel collapse accidents.

[0003] Among them, the occurrence of tunnel construction collapse not only causes heavy economic losses but also endangers the lives of the construction site personnel. Therefore, it is necessary to build a safety passage at the collapse site to ensure the timely evacuation of the on-site personnel. The existing methods for building a safety passage are as follows:

[0004] One is to build a temporary safety passage by using local materials on the construction site. The disadvantage of this method is that the built passage, due to the limitation of the local materials used, has poor stability, and it takes a certain amount of time to search for materials and build the safety passage, which will delay the rescue time.

[0005] The other is to use an existing safety passage device. The Chinese utility model patent with the publication number CN213574207U discloses a safety passage device for tunnel construction collapse in municipal engineering. This safety passage can form a rescue passage at the collapse site to prevent secondary collapse at the tunnel collapse site, avoiding the disadvantages of temporarily building a safety passage, which is convenient for rescuing trapped personnel. However, the disadvantage of this installation passage device is that it can only adapt to the rescue work of tunnels with a certain height and cannot adjust the height of the arc-shaped roof according to the actual height of the collapse site, resulting in the arc-shaped roof being unable to effectively support the tunnel collapse site. Summary of the Invention

[0006] Aiming at the deficiencies in the prior art, the present invention provides a temporary support device for tunnel collapse rescue, which solves the problem in the prior art that the existing installation passage device cannot adjust the height of the arc-shaped roof according to the actual height of the tunnel collapse site.

[0007] According to an embodiment of the present invention, a temporary support device for tunnel collapse rescue includes: a bottom plate, a support frame, a cross beam, and an arc-shaped top plate. The cross beam is supported on the top of the bottom plate by a plurality of support frames. A plurality of support components for supporting the arc-shaped top plate are provided on the top of the cross beam. The arc-shaped top plate is used to support at the collapse location on the top of the tunnel. Each of the support components includes a connecting column and a connecting plate. There are two connecting plates, and the two connecting plates are arranged at intervals on the top of the cross beam. The connecting column is fixed to the bottom of the arc-shaped top plate. A connecting strip is provided at the bottom of the connecting column. The connecting strip is vertically inserted between the two connecting plates, and the connecting strip is slidably connected to the two connecting plates. The connecting strip is detachably connected to the two connecting plates by bolts. A plurality of mounting holes distributed in the vertical direction are provided on both the connecting strip and the connecting plates. Each of the mounting holes is used for the bolt to pass through.

[0008] Compared with the prior art, the present invention has the following beneficial effects: By providing a plurality of mounting holes distributed in the vertical direction on both the connecting strip and the connecting plates, the sliding of the connecting strip relative to the connecting plates in the vertical direction can be adjusted according to the height of the collapse location on the top of the tunnel. Then, the connecting plates and the connecting column are fixed by bolts passing through the corresponding mounting holes, so as to adjust the height of the arc-shaped top plate, which is convenient for the arc-shaped top plate to support the collapse location of the tunnel, so that the support device can be applicable to support tunnel collapse locations of different heights, and the practicability of the support device is improved.

[0009] Further, an auxiliary support column is vertically provided on the top of the bottom plate, and a support seat for supporting the bottom of the cross beam is fixedly provided on the top of the auxiliary support column.

[0010] Preferably, a plurality of reinforcing rods are obliquely arranged between the auxiliary support column and the bottom of the cross beam.

[0011] Preferably, it further includes a lighting lamp. There are a plurality of lighting lamps, and each lighting lamp is fixed on the reinforcing rod.

[0012] Further, wheels for driving it to move on the ground are provided at the bottom of the bottom plate, and a support mechanism for supporting on the ground is detachably provided at the bottom of the bottom plate.

[0013] Further, the support mechanism includes: a connecting block and a support block. A chute is provided at the bottom of the bottom plate, and both ends of the chute communicate with the outside. The connecting block is slidably arranged in the chute, and the support block is fixed to the bottom of the connecting block.

[0014] Preferably, it further includes a water tank. The water tank is fixed to the side wall of one of the support frames through a mounting frame, and the water tank is used for storing water.

[0015] Further, vertical threaded columns penetrating the crossbeam are provided at both ends of the crossbeam. Detection seats are rotatably provided at the tops of the two threaded columns, and the two detection seats are respectively in close contact with the bottoms of both ends of the arc-shaped top plate. Two detection components are further provided on the support frame, and the two detection components are respectively used to detect whether both ends of the arc-shaped top plate are inclined.

[0016] Further, each of the detection components includes: a sliding component, a power supply, and an alarm. The alarm and the power supply are both fixed on the support frame. A rotating disk is fixedly provided at the bottom of each threaded column. The sliding component is slidably provided on the side wall of the support frame. A trigger switch located directly below the rotating disk is provided at the top of the sliding component. The trigger switch, the power supply, and the alarm are connected by a wire circuit. The trigger switch is used to control the opening and closing of the circuit.

[0017] Further, each of the sliding components includes: a sliding seat, a screw rod, and a guiding seat. A sliding groove is provided on the side wall of the support frame, and a guiding groove is provided on the side wall of the sliding groove. The sliding seat and the guiding seat are respectively slidably provided in the sliding groove and the guiding groove. The guiding seat is fixedly connected to the side wall of the sliding seat. A ball is rotatably provided between the guiding seat and the side wall of the guiding groove away from the sliding groove. A threaded hole penetrating it is provided on the side wall of the sliding seat away from the support frame. The screw rod horizontally passes through the threaded hole and is in close contact with the inner wall of the sliding groove. The screw rod is threadedly connected to the threaded hole. One end of the sliding seat extends out of the sliding groove. The trigger switch is fixed to the top of the end of the sliding seat extending out of the sliding groove, and the trigger switch is located directly below the rotating disk. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0019] Figure 2 It is a schematic installation structure diagram of the sliding seat.

[0020] In the above-mentioned drawings: 1. bottom plate; 2. support frame; 3. crossbeam; 4. arc-shaped top plate; 5. connecting column; 6. connecting strip; 7. connecting plate; 8. auxiliary support column; 9. support seat; 10. strengthening rod; 11. lighting lamp; 12. wheel; 13. connecting block; 14. support block; 15. water tank; 16. detection seat; 17. threaded column; 18. rotating disk; 19. trigger switch; 20. alarm; 21. sliding groove; 22. guiding groove; 23. guiding seat; 24. ball; 25. threaded hole; 26. sliding seat. Detailed Embodiment

[0021] The technical solutions in the present invention will be further described below with reference to the drawings and embodiments.

[0022] As Figure 1As shown in the figure, an embodiment of the present invention provides a temporary support device for tunnel collapse rescue, including: a bottom plate 1, a support frame 2, a cross beam 3, and an arc-shaped top plate 4. The cross beam 3 is supported on the top of the bottom plate 1 by a plurality of support frames 2. A plurality of support components for supporting the arc-shaped top plate 4 are arranged on the top of the cross beam 3. The arc-shaped top plate 4 is used to support the collapse area at the top of the tunnel. Each of the support components includes a connecting column 5 and a connecting plate 7. There are two connecting plates 7, and the two connecting plates 7 are arranged at intervals on the top of the cross beam 3. The connecting column 5 is fixed to the bottom of the arc-shaped top plate 4. A connecting strip 6 is arranged at the bottom of the connecting column 5. The connecting strip 6 is vertically inserted between the two connecting plates 7. The connecting strip 6 is slidably connected with the two connecting plates 7. The connecting strip 6 is detachably connected with the two connecting plates 7 by bolts. A plurality of mounting holes distributed in the vertical direction are arranged on both the connecting strip 6 and the connecting plate 7. Each of the mounting holes is used for a bolt to pass through.

[0023] By arranging a plurality of mounting holes distributed in the vertical direction on both the connecting strip 6 and the connecting plate 7, the sliding of the connecting strip 6 relative to the connecting plate 7 in the vertical direction can be adjusted according to the height of the collapse area at the top of the tunnel. Then, the connecting plate 7 is fixed to the connecting column 5 by bolts passing through the corresponding mounting holes, so as to adjust the height of the arc-shaped top plate 4, which is convenient for the arc-shaped top plate 4 to support the collapse area of the tunnel, so that the support device can be applied to support tunnel collapse areas of different heights, and the practicability of the support device is improved.

[0024] Furthermore, in order to improve the stability of the cross beam 3, an auxiliary support column 8 is also vertically arranged on the top of the bottom plate 1. A support seat 9 for supporting the bottom of the cross beam 3 is fixedly arranged at the top of the auxiliary support column 8.

[0025] Preferably, in order to further improve the stability of the cross beam 3 and also reduce the burden on the support frame 2, a plurality of reinforcing rods 10 are obliquely arranged between the auxiliary support column 8 and the bottom of the cross beam 3.

[0026] Preferably, it further includes a lighting lamp 11. There are a plurality of lighting lamps 11, and each lighting lamp 11 is fixed on the reinforcing rod 10. By arranging the lighting lamp 11, lighting is provided for rescue workers in the underground tunnel, which is convenient for carrying out rescue work.

[0027] Furthermore, wheels 12 for driving it to move on the ground are also arranged at the bottom of the bottom plate 1. A support mechanism for supporting on the ground is detachably arranged at the bottom of the bottom plate 1. Further, the support mechanism includes: a connecting block 13 and a support block 14. A chute is arranged at the bottom of the bottom plate 1, and both ends of the chute communicate with the outside. The connecting block 13 is slidably arranged in the chute, and the support block 14 is fixed to the bottom of the connecting block 13.

[0028] By setting the wheels 12 and the support mechanism, when the rescue vehicle is inconvenient to move in the tunnel, the wheels 12 at the bottom of the bottom plate 1 can drive the bottom plate 1 to move on the ground, thus facilitating the transportation of this support device to the collapsed area of the tunnel. When this support device reaches the designated position, clean the debris between the bottom plate 1 and the ground, and then insert the connecting block 13 into the chute to install the support block 14. At this time, the support block 14 also plays a role in supporting the bottom plate 1, reducing the burden on the wheels 12. Anti-slip materials such as rubber pads can also be added to the bottom of the support block 14 to increase the friction between the support block 14 and the ground.

[0029] Preferably, it further includes a water tank 15. The water tank 15 is fixed on the side wall of one of the support frames 2 through a mounting bracket. The water tank 15 is used to store water and provide water resources for the rescue personnel in the tunnel.

[0030] Furthermore, threaded columns 17 that are vertical and penetrate through the cross beam 3 are provided at both ends of the cross beam 3. Detection seats 16 are rotatably provided at the tops of the two threaded columns 17. The two detection seats 16 are respectively in close contact with the bottoms of both ends of the arc-shaped top plate 4. Two detection components are also provided on the support frame 2, and the two detection components are respectively used to detect whether both ends of the arc-shaped top plate 4 are inclined. By setting the detection seats 16, the detection seats 16 and the threaded columns 17 also play a role in supporting the arc-shaped top plate 4, thereby reducing the burden on the connecting strip 6, the bolts and the connecting plate 7. Further, by setting the detection components, when the arc-shaped top plate 4, the connecting plate 7, and the connecting strip 6 are bent due to the large pressure at the tunnel collapse site, the threaded columns 17 transmit the pressure to the detection components. The detection components can give a real-time warning, reminding the rescue personnel that the collapse site may collapse again, warning the rescue personnel to evacuate the rescue passage temporarily built by this support device in time to ensure the safety of the rescue personnel. At the same time, it can also remind the rescue personnel to maintain this support device to avoid secondary collapse.

[0031] Furthermore, as Figure 1 shown, each of the detection components includes: a sliding component, a power source, and an alarm 20. The alarm 20 and the power source are both fixed on the support frame 2. A rotating disk 18 is fixedly provided at the bottom of each threaded column 17. The sliding component is slidably provided on the side wall of the support frame 2. A trigger switch 19 located directly below the rotating disk 18 is provided at the top of the sliding component. The trigger switch 19, the power source, and the alarm 20 are connected by a wire circuit. The trigger switch 19 is used to control the opening and closing of the circuit.

[0032] Furthermore, as Figure 2As shown, each of the sliding components includes: a sliding seat 26, a screw and a guide seat 23. The side wall of the support frame 2 is provided with a sliding groove 21, and the side wall of the sliding groove 21 is provided with a guide groove 22. The sliding seat 26 and the guide seat 23 are respectively slidably arranged in the sliding groove 21 and the guide groove 22. The guide seat 23 is fixedly connected to the side wall of the sliding seat 26. A ball 24 is rollingly arranged between the guide seat 23 and the side wall of the guide groove 22 away from the sliding groove 21. The side wall of the sliding seat 26 away from the support frame 2 is provided with a threaded hole 25 passing through it. The screw horizontally passes through the threaded hole 25 and is tightly attached to the inner wall of the sliding groove 21. The screw is threadedly connected to the threaded hole 25. One end of the sliding seat 26 extends out of the sliding groove 21. The trigger switch 19 is fixed on the top of the end of the sliding seat 26 extending out of the sliding groove. The trigger switch 19 is located directly below the rotating disk 18.

[0033] Specifically, the working principle of the detection component is: when the arc-shaped top plate 4 moves downward due to a large force, the end of the arc-shaped top plate 4 pushes the threaded column 17 to move downward, and the rotating disk 18 at the end of the threaded column 17 pushes the trigger switch 19 downward. The trigger switch 19 turns on the circuit between the power supply and the alarm 20, thereby making the alarm 20 work. The alarm 20 sounds an alarm, thereby reminding the rescue personnel that the support device is subjected to a large load and the rescue personnel need to evacuate in time. At the same time, it is also necessary to find a support device again to support the collapsed area to ensure that the collapsed area of ​​the tunnel will not collapse again.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A temporary support device for tunnel collapse rescue, characterized in that, Including: A bottom plate (1), a support frame (2), a cross beam (3), and an arc-shaped top plate (4). The cross beam (3) is supported on the top of the bottom plate (1) by a number of support frames (2). A number of support components for supporting the arc-shaped top plate (4) are provided on the top of the cross beam (3). The arc-shaped top plate (4) is used to support the collapse area at the top of the tunnel. Each of the support components includes a connecting column (5) and a connecting plate (7). There are two connecting plates (7), and the two connecting plates (7) are arranged at intervals on the top of the cross beam (3). The connecting column (5) is fixed to the bottom of the arc-shaped top plate (4). A connecting bar (6) is provided at the bottom of the connecting column (5). The connecting bar (6) is vertically inserted between the two connecting plates (7), and the connecting bar (6) is slidably connected to the two connecting plates (7). The connecting bar (6) is detachably connected to the two connecting plates (7) by bolts. A number of mounting holes distributed in the vertical direction are provided on both the connecting bar (6) and the connecting plates (7). Each mounting hole is used for a bolt to pass through. Two detection components are also provided on the support frame (2). The two detection components are respectively used to detect whether the two ends of the arc-shaped top plate (4) are inclined. Each of the detection components includes: a sliding component, a power supply, and an alarm (20). The alarm (20) and the power supply are both fixed on the support frame (2). A rotating disk (18) is fixedly provided at the bottom of each threaded column (17). The sliding component is slidably arranged on the side wall of the support frame (2). A trigger switch (19) located directly below the rotating disk (18) is provided at the top of the sliding component. The trigger switch (19), the power supply, and the alarm (20) are connected by a wire circuit. The trigger switch (19) is used to control the opening and closing of the circuit. Each of the sliding components includes: a sliding seat (26), a screw rod, and a guiding seat (23). A sliding groove (21) is provided on the side wall of the support frame (2). A guiding groove (22) is provided on the side wall of the sliding groove (21). The sliding seat (26) and the guiding seat (23) are respectively slidably arranged in the sliding groove (21) and the guiding groove (22). The guiding seat (23) is fixedly connected to the side wall of the sliding seat (26). A ball (24) is rotatably arranged between the guiding seat (23) and the side wall of the guiding groove (22) away from the sliding groove (21). A threaded hole (25) penetrating it is provided on the side wall of the sliding seat (26) away from the support frame (2). The screw rod horizontally passes through the threaded hole (25) and is in close contact with the inner wall of the sliding groove (21). The screw rod is threadedly connected to the threaded hole (25). One end of the sliding seat (26) extends out of the sliding groove (21). The trigger switch (19) is fixed to the top of the end of the sliding seat (26) extending out of the sliding groove. The trigger switch (19) is located directly below the rotating disk (18).

2. The temporary support device for tunnel collapse rescue according to claim 1, wherein, An auxiliary support column (8) is also vertically provided on the top of the bottom plate (1). A support seat (9) for supporting the bottom of the cross beam (3) is fixedly provided at the top of the auxiliary support column (8).

3. The temporary support device for tunnel collapse rescue according to claim 2, characterized in that, A number of reinforcing bars (10) are inclined between the auxiliary support column (8) and the bottom of the cross beam (3).

4. The temporary support device for tunnel collapse rescue according to claim 3, characterized in that, It further includes a lighting lamp (11), and there are several lighting lamps (11), and each lighting lamp (11) is fixed on the reinforcing rod (10).

5. The temporary support device for tunnel collapse rescue according to claim 1, characterized in that, Wheels (12) for driving the bottom plate (1) to move on the ground are further arranged at the bottom of the bottom plate (1), and a support mechanism for supporting on the ground is detachably arranged at the bottom of the bottom plate (1).

6. The temporary support device for tunnel collapse rescue according to claim 5, characterized in that, The support mechanism includes: a connecting block (13) and a support block (14). A sliding groove is arranged at the bottom of the bottom plate (1), and both ends of the sliding groove communicate with the outside. The connecting block (13) is slidably arranged in the sliding groove, and the support block (14) is fixed at the bottom of the connecting block (13).

7. The temporary support device for tunnel collapse rescue according to claim 1, wherein, It further includes a water tank (15), and the water tank (15) is fixed on the side wall of one of the support frames (2) through a mounting bracket. The water tank (15) is used for storing water.

8. The temporary support device for tunnel collapse rescue according to claim 1, characterized in that, Threaded columns (17) that are vertical and penetrate through the cross beam (3) are arranged at both ends of the cross beam (3). Detection seats (16) are rotatably arranged at the tops of the two threaded columns (17), and the two detection seats (16) are respectively in close contact with the bottoms of both ends of the arc-shaped top plate (4).

Images