Temporary supporting device for goaf roadway tunneling

Abstract

The utility model provides a goaf roadway tunneling temporary supporting device which comprises a W-shaped steel belt plate, a reinforcing assembly penetrates through the interior of the W-shaped steel belt plate, the reinforcing assembly comprises a circular disc, the upper end of the circular disc is fixedly connected with a built-in column, a bent plate is arranged above the built-in column, a top column is arranged above the bent plate, and the top column is connected with the W-shaped steel belt plate. Compared with the prior art, the W-shaped steel belt plate has the advantages that the W-shaped steel belt plate is reinforced, connected and fixed through the reinforcing assembly, the W-shaped steel belt plate is placed above a roadway during operation and installation, the built-in column in the W-shaped steel belt plate is made to penetrate into the W-shaped steel belt plate, the circular disc is made to make contact with and support the outer wall, and therefore the W-shaped steel belt plate can be firmly connected and fixed. And then a fastening bolt connected to the lower end is rotated, so that an internal connecting column rotates, a top column connected and fixed to the upper end descends, a lower bent plate is supported, collision reinforcement is formed, the interior of the ore is reinforced, and the fixing firmness of the interior is improved.

Description

Technical Field

[0001] The utility model relates to a temporary supporting device for tunnel excavation in a goaf area, belonging to the field of tunnel supporting devices. Background Art

[0002] Tunnels are various passages drilled between the surface and the ore body, used for ore transportation, ventilation, drainage, pedestrians, and various necessary preparatory works for the new excavation of ore for metallurgical equipment. After the tunnel is opened, a support structure needs to be designed inside to support the inside of the tunnel and at the same time support and protect against landslides above.

[0003] In the prior art, when the mining tunnel support structure is fixed, the threaded steel anchor rod installed inside is directly rotated to fix the W steel belt on the tunnel surface. Since the internal thread is rotated to fix it, the reinforcement formed by the thread surface is not strong enough and the contact with the ore surface will become loose. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a temporary support device for tunneling in goaf areas to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned object, the utility model is realized by the following technical scheme: a temporary support device for tunnel excavation in a goaf area, comprising a W-steel strip plate, a reinforcement component is penetrated inside the W-steel strip plate, the reinforcement component comprises a circular plate, an upper end of the circular plate is fixedly connected to a built-in column, and a bending plate is arranged above the built-in column;

[0006] A top column is arranged above the bending plate, a connecting column is movably connected to the inner wall of the built-in column, a fastening bolt is fixedly connected to the lower end of the connecting column, and a supporting assembly is tightly fitted below the W steel strip.

[0007] Preferably, the reinforcement components are respectively arranged at the front and rear ends of the interior of the W steel strip, and the reinforcement components penetrate the interior of the W steel strip and are connected to the ore.

[0008] Preferably, the circular disk and the built-in column form an integral casting structure, and the built-in column is connected to the center axis between the top column.

[0009] Preferably, the support assembly includes a long row plate, a connecting bolt penetrates the interior of the long row plate, and an inclined plate is fixedly connected below the long row plate.

[0010] Preferably, the long row plate and the inclined plate are connected by welding, and the connecting bolts pass through the interior of the long row plate and are connected to the W steel strip plate.

[0011] Preferably, one end of the support assembly is tightly fitted with a side plate, and an anchor cable assembly is provided below the side plate and tightly fitted to the outer wall of the side plate.

[0012] Preferably, the anchor cable assembly comprises a circular anchor cable plate, the outside of the circular anchor cable plate is fixedly connected to a mounting plate, the inside of the mounting plate is penetrated by a circular hole, and the inside of the circular anchor cable plate is penetrated by a connecting anchor cable.

[0013] Preferably, the circular anchor plate and the mounting plate are connected by welding, and the connecting anchor runs through the interior of the circular anchor plate.

[0014] Beneficial effects of the utility model:

[0015] Compared with the prior art, the temporary support device for tunnel excavation in the goaf uses a reinforcement component to reinforce and connect the W-steel strip plate. During operation and installation, the W-steel strip plate is placed above the tunnel, and the internal built-in column is inserted into the interior to allow the circular disk to contact and support the outer wall. Then, the fastening bolt connected at the lower end is rotated to rotate the internal connecting column, so that the top column connected and fixed at the upper end is lowered, and the bent plate below is propped up to form collision reinforcement, thereby reinforcing the interior of the ore and increasing the internal fixation firmness.

[0016] Compared with the prior art, the temporary support device for tunnel excavation in the goaf is reinforced and connected on both sides through anchor cable assemblies. When placing, connecting and fixing the side plates, the mounting plate inside the connecting anchor cable is fixed on the inside by screws, and then the connecting anchor cable is inserted into the interior of the circular anchor cable plate to reinforce the support connection between the W-steel strip plates, thereby increasing the overall stability of the connection inside the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 It is a schematic diagram of the main view of a temporary support device for tunnel excavation in a goaf area according to the utility model;

[0019] Figure 2 This is a schematic diagram of a W steel strip plate in a temporary support device for tunnel excavation in a goaf area of ​​the utility model;

[0020] Figure 3 This is a schematic diagram of a reinforcement component in a temporary support device for tunnel excavation in a goaf area of ​​the utility model;

[0021] Figure 4 This is a schematic diagram of a support component in a temporary support device for tunnel excavation in a goaf area of ​​the utility model;

[0022] Figure 5This is a schematic diagram of an anchor cable assembly in a temporary support device for tunnel excavation in a goaf area of ​​the utility model;

[0023] In the figure: 1. W steel strip plate; 2. reinforcement assembly; 201. circular disk; 202. built-in column; 203. bent plate; 204. top column; 205. connecting column; 206. fastening bolt; 3. support assembly; 301. long plate; 302. connecting bolt; 303. inclined plate; 4. side plate; 5. anchor cable assembly; 501. circular anchor cable plate; 502. mounting plate; 503. circular hole; 504. connecting anchor cable. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] Embodiment 1

[0026] As attached Figures 1 to 5 A temporary support device for tunnel excavation in a goaf shown in the figure comprises a W-shaped steel strip plate 1, a reinforcement component 2 is passed through the interior of the W-shaped steel strip plate 1, the reinforcement component 2 comprises a circular plate 201, an internal column 202 is fixedly connected to the upper end of the circular plate 201, and a bending plate 203 is arranged above the internal column 202;

[0027] A top column 204 is arranged above the bending plate 203, a connecting column 205 is movably connected to the inner wall of the built-in column 202, a fastening bolt 206 is fixedly connected to the lower end of the connecting column 205, a supporting component 3 is tightly fitted under the W steel strip 1, and the reinforcement components 2 are respectively arranged at the front and rear ends of the inside of the W steel strip 1, and the reinforcement components 2 penetrate the inside of the W steel strip 1 and are connected to the ore, an integral casting structure is formed between the circular disk 201 and the built-in column 202, and the central axis between the built-in column 202 and the top column 204 is connected.

[0028] Among them: when operating and using the temporary support device for tunnel excavation, the W steel strip plate 1 is placed above the inside of the tunnel, and then holes are opened in the ore material inside the tunnel so that the connected reinforcement component 2 can penetrate into the W steel strip plate 1 and connect with the inside of the tunnel. After the built-in column 202 is inserted into the W steel strip plate 1, the circular disk 201 at the lower end is contacted, and then the internal fastening bolt 206 is rotated to make the top column 204 connected at the upper end descend, and a push is formed between the connecting bent plate 203 and the built-in column 202, so that the bent plate 203 is opened, and the inside of the tunnel is reinforced to improve the internal connection firmness.

[0029] Embodiment 2

[0030] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 5 As shown, see the following description for details:

[0031] As a preferred embodiment, the support assembly 3 includes a long plate 301, a connecting bolt 302 is passed through the interior of the long plate 301, an inclined plate 303 is fixedly connected below the long plate 301, the long plate 301 and the inclined plate 303 are connected by welding, and the connecting bolt 302 passes through the interior of the long plate 301 and is connected to the W steel strip plate 1;

[0032] Furthermore, when the equipment is operated, the long plate 301 can be brought into contact with the surface of the W steel strip plate 1 and the side plate 4 respectively, and then the connecting bolts 302 can be inserted into the interior of the long plate 301 to connect, install and fix them, so that a reinforced connection is formed between the W steel strip plate 1 and the side plate 4.

[0033] As a preferred embodiment, one end of the support assembly 3 is closely fitted with a side plate 4, and an anchor cable assembly 5 closely fitted to the outer wall of the side plate 4 is provided below the side plate 4;

[0034] Furthermore, when operating and installing the equipment, the side plate 4 can be connected and installed with the W steel strip plate 1, and at the same time cooperate with the anchor cable assembly 5 to form the overall connection stability.

[0035] As a preferred embodiment, the anchor cable assembly 5 includes a circular anchor cable plate 501, the outside of the circular anchor cable plate 501 is fixedly connected to a mounting plate 502, the inside of the mounting plate 502 is penetrated by a circular hole 503, the inside of the circular anchor cable plate 501 is penetrated by a connecting anchor cable 504, the circular anchor cable plate 501 and the mounting plate 502 are connected by welding, and the connecting anchor cable 504 penetrates the inside of the circular anchor cable plate 501;

[0036] Furthermore, when operating and installing the equipment, the mounting plate 502 can be positioned and docked, and then the screws can be inserted into the circular hole 503 for rotation and fixation, and then the connecting anchor cable 504 can be inserted into the circular anchor cable plate 501 for connection and fixation, forming an overall connection installation.

[0037] The working principle of the utility model is as follows:

[0038] First, when operating and installing the bracket, the W steel strip 1 is placed above the inside of the tunnel, and then holes are opened in the ore material inside the tunnel so that the connected reinforcement component 2 can penetrate into the W steel strip 1 and connect with the inside of the tunnel. After the built-in column 202 is inserted into the W steel strip 1, the circular disk 201 at the lower end is contacted, and then the internal fastening bolt 206 is rotated to make the top column 204 connected at the upper end descend, and a push is formed between the connecting bending plate 203 and the built-in column 202 to open the bending plate 203. The inside of the tunnel is reinforced, and then the long plate 301 is respectively contacted with the surface of the W steel strip plate 1 and the side plate 4, and then the connecting bolts 302 are inserted into the inside of the long plate 301 for connection, installation and fixing, so that a reinforced connection is formed between the W steel strip plate 1 and the side plate 4, and then the mounting plate 502 is positioned and docked, and then the screws are inserted into the circular hole 503 for rotation and fixing, and then the connecting anchor cable 504 is inserted into the inside of the circular anchor cable plate 501 for connection and fixing, forming an overall connection and installation, and fixing the bracket inside the tunnel.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A temporary support device for tunnel excavation in a goaf area, comprising a W steel strip plate (1), characterized in that: A reinforcement component (2) passes through the interior of the W steel strip (1), and the reinforcement component (2) comprises a circular plate (201), an upper end of the circular plate (201) is fixedly connected to an internal column (202), and a bending plate (203) is arranged above the internal column (202); A top column (204) is arranged above the bending plate (203), a connecting column (205) is movably connected to the inner wall of the built-in column (202), a fastening bolt (206) is fixedly connected to the lower end of the connecting column (205), and a supporting assembly (3) is tightly fitted below the W steel strip plate (1).

2. A temporary support device for tunnel excavation in goaf area according to claim 1, characterized in that: The reinforcement components (2) are respectively arranged at the front and rear ends of the interior of the W steel strip (1); the reinforcement components (2) penetrate the interior of the W steel strip (1) and are connected to the ore.

3. A temporary support device for tunnel excavation in goaf area according to claim 1, characterized in that: The circular disk (201) and the built-in column (202) form an integral casting structure, and the center axis between the built-in column (202) and the top column (204) is connected.

4. A temporary support device for tunnel excavation in goaf area according to claim 1, characterized in that: The support assembly (3) comprises a long plate (301), a connecting bolt (302) penetrates the interior of the long plate (301), and an inclined plate (303) is fixedly connected below the long plate (301).

5. A temporary support device for tunnel excavation in goaf area according to claim 4, characterized in that: The long plate (301) and the inclined plate (303) are connected by welding, and the connecting bolts (302) penetrate the interior of the long plate (301) and are connected to the W steel strip plate (1).

6. A temporary support device for tunnel excavation in goaf area according to claim 1, characterized in that: One end of the support assembly (3) is tightly fitted with a side plate (4), and an anchor cable assembly (5) is arranged below the side plate (4) and is tightly fitted on the outer wall of the side plate (4).

7. A temporary support device for tunnel excavation in goaf area according to claim 6, characterized in that: The anchor cable assembly (5) comprises a circular anchor cable plate (501), the outside of the circular anchor cable plate (501) is fixedly connected to a mounting plate (502), the inside of the mounting plate (502) is penetrated by a circular hole (503), and the inside of the circular anchor cable plate (501) is penetrated by a connecting anchor cable (504).

8. A temporary support device for tunnel excavation in goaf area according to claim 7, characterized in that: The circular anchor cable plate (501) and the mounting plate (502) are connected by welding, and the connecting anchor cable (504) runs through the interior of the circular anchor cable plate (501).

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